MXPA00002457A - Air cleaner assembly and method - Google Patents

Abstract

An air cleaner assembly having a body member and a removable cover is provided. The assembly includes a lock assembly (97-98) for engagement between the cover and the body member. The preferred lock assembly is a rotation activated lock assembly movable between locked (fig. 10) and unlocked (fig. 11) orientations by a selected amount of relative rotational movement between the cover and the body member.

Description

ASSEMBLY AND METHOD OF AIR CLEANER Field of the invention The present invention relates to air cleaners. Particularly it refers to air cleaners having a housing comprising two sections that, together, enclose an air filter element. The invention relates to a preferred arrangement for securing two housing sections with one another. The invention also relates to methods of assembly and use.

Background of the Invention The air cleaner assemblies are widely used in connection with the inflow of air, for example for internal combustion engines. Air cleaners are used in equipment such as: heavy duty trucks; construction equipment, (for example, platforms, scrapers and hoes); equipment for agriculture (for example, tractors and cutting machines); road vehicles; trucks; light duty trucks; automobiles; special equipment (for example, gallows and trailers); and other types of equipment (for example, lawn tractors). The machines for REF .: 33010 such systems in general, use an air cleaner, which could vary in size and capacity, depending on the system. For systems that generally use an 8-inch air cleaner, the machines are typically approximately 5 liters and have a horsepower of approximately 100 hp.

One purpose of the air cleaner, in such systems, is generally to filter the inlet air to the machine, to protect the machine parts from damage. In general, air cleaners comprise housings having replaceable and removable filter elements placed therein. The filter elements in many systems have, in general, circular or cylindrical configurations and are operated in a "forward flow" manner; i.e., with filtration flow from the outside of the element to an interior. For equipment of the type described above, frequently air flow rates through air cleaners are in the range of about 30 to 350 CFM (cubic feet per minute) (approximately 0.8-10 cubic meters per minute), depending on if the machines are unoccupied or under load. To accommodate the desired filter life time, the filter efficiency requirements and the space limitations, in general, the filter element diameters in the order of 3.0 to 8.5 inches (approximately 75-210 mm), are used more commonly with such equipment. Such new filter elements, in general, weigh from 200 grams to 1200 grams (clean), and can obtain weight by up to 3 times or more during use. Air cleaner alloys having diameters of at least 4 to 10 inches (approximately 100-1000 mm), and lengths of 7.5 to 24 inches (approximately 100-600 mm), for such equipment, are relatively common. It is for use with such air cleaners as the cleaners described in this and the previous paragraph that the arrangements according to the present invention were particularly developed. That is, the invention is particularly appropriate for such systems, although it could be applied to others.

Air cleaners of the type described in the two preceding paragraphs are reviewed regularly and routinely. In some cases, the elements of the air filter are removed and either cleaned or replaced. Also, in some cases the inner chamber of the air cleaner is cleaned of materials such as leaves and sedimented dust, etc. To facilitate installation and service, air cleaner arrangements are constructed so that they can be opened and the elements can be installed and removed.

Typically, to facilitate assembly and service, the wiper housings are constructed in two main portions: a section of the main body member; and a cover. In general, the cover is not mounted inserted in the section of the body, to attach the body of the air cleaner. A variety of arrangements have been used to secure the cover to the housing, in air cleaners of the type described above, include, for example: bolted systems; metal locks and arrangements of plastic locks.

The U.S. Patent No. 4,333,580 describes an underground tank having a two-piece housing with a rotationally activated closure assembly. DE 3,336,882 discloses an air cleaner with a rotary closing mechanism. The rotary closing mechanism has a sliding screw and a retaining band.

Brief description of U.S.S.N. 08 / 928,684 According to the description of U.S.S.N. 08/928/684, an air cleaner assembly is provided. The air cleaner assembly, generally includes a body member and a removable cover. The assembly includes a closure assembly for selectively securing the removable cover to the body member. The preferred closure assembly is activated by rotation. That is, the cover is secured in engagement with the body member, and is released from engagement, based on the selected rotational movement of the cover, relative to the body member. For a preferred arrangement of U.S.S.N. 08 / 928,684, the closure assembly is constructed so that movement between the closed and open orientations is presented with relatively small rotational movement, in the order of only about 5 ° to 25 °.

The preferred closure assemblies according to U.S.S.N. 08 / 928,684 are positioned so that there is no portion thereof which is exposed "directly" to the external environment when the system engages, i.e., when the cover is closed on the body member. According to this, it means that when the cover is closed on the body member, the portions comprising the closure assembly are positioned below the cover, and are not directly exposed to the environment or exterior elements. In this way, the housing preferably does not include openings therein oriented on the closure assembly. This means that, snow, ice, road tar, mud, etc. they will be less likely to interfere with the smooth operation of the closure assembly. Here, when the term "internal closure assembly" is used, it is understood that the closure assembly is positioned or contained under a protective outer surface or surfaces of the housing, which have no openings here, when the closure assembly is mounted and close The term "internal" when used in this context refers to protection under any portion of the cover and / or body member, while direct external exposure is not involved through an opening or otherwise.

For typical applications, the body member defines an interior of an open air cleaner and includes an inlet of the air flow. Typically, the airflow entrance will be a side entrance, although alternatives are used. The body member generally includes a side wall and a terminal wall. The side wall is dimensioned to receive at least a portion of a replaceable air filter element, during use. The insertion of the filter element, in the body member, is through an open end defined by the side wall.

The typical air cleaner arrangements according to U.S.S.N. 08 / 928,684 includes an outlet of the air flow which filters the flow of air from the air cleaner en route to the downstream equipment, such as a vehicle machine. The outlet of the air flow could comprise a piece coupled to a remainder of the body member; or, it could be built entirely with the body member.

In a preferred arrangement as described and shown in U.S.S.N. 08 / 928,684, rotation of the activated closure assembly comprises a projection closure arrangement and cap or leg and handle, including a cap or leg arrangement and a projection or grip arrangement.

The bushing or leg arrangement is mounted on a first arrangement of the body member and the cover; and, the leg or grab arrangement is mounted on a second arrangement of the body member and the cover. The arrangement of the cap or the leg and the leg or pot arrangement are arranged such that, during closure, the portions of the cap or leg arrangement are secured in place by the portions of the projection or handle arrangement. A preferred arrangement of U.S.S.N. 08 / 928,684 is such that, due to the rotation towards the open orientation, the decoupling between these portions of the bushing or leg arrangement or the projection or grab arrangement is presented.

In the preferred assemblies according to U.S.S.N. 08 / 928,684, the bushing or leg arrangement comprises a plurality of L-shaped leg members or legs (ie bushings) placed on the deck, and, the projecting arrangement or gate comprises a plurality of handles (or projections) placed in the body member. According to U.S.S.N. 08 / 928,684 preferably the members of the L-shaped leg (ferrules) are evenly spaced radially; and, the handles (projections) also are spaced evenly radially.

Certain preferred configurations for the lugs (projections) and the L-shaped stop (ferrules), to accommodate convenient closure, convenient opening and convenient fabrication, were identified in U.S.S.N. 08 / 928,684. To facilitate the closing, the configuration of the handles (projections) is selected such that each handgrip (projection) has a pair of projections spaced therein that define a spaced, concave or slotted portion that receives, in frictional engagement, a closing projection, flange or retainer during closure.

In certain modalities of U.S.S.N. 08 / 928,684, the handles (projections) remain and separate, over the center in the spaces in the leg (bushings). As such, the closure assembly in the preferred embodiments operates as a "over the center" closure. "Closing over the center" means a closure where the maximum torque or the supporting force occurs during the relative passage over the center between the handles (projections) and the leg (bushes), but is relieved on opposite sides of the center, ie, in a closed or open orientation.

According to the description of U.S.S.N. 08 / 928,684, there is provided a method for securing a cover over an air cleaner mode. The method preferably involves orienting the cover to cover relative to one end of the body member; and, turn the cover towards the closed orientation. Preferably, the closed orientation is obtained by the use of a rotationally oriented closure assembly as described; and, it is a non-inserted array.

According to U.S.S.N. 08 / 928,684 in certain embodiments, a coupling finger assembly or construction is provided. The construction of the coupling finger includes a slidable member in a position that inhibits the opening of the closure assembly, when selectively positioned.

Brief Description of the Present Invention An air cleaner assembly is provided. The air cleaner assembly includes a body member and a removable cover. The activated rotation closure assembly is provided, having a first open rotation and a second closed rotation. The cover is detachable from the body member when the closure assembly is in the first open rotation. The cover is secured to the body member when the closure assembly is in the closed position. The activated rotation closure assembly is constructed and arranged to move selectively between the open orientation and the closed orientation by rotational movement of the cover relative to the body member. The activated rotation lock assembly includes a handle and leg arrangement. Preferably, the handle arrangement includes a plurality of handles. Each of the legs has a segment oriented to engage a selected segment of the handles during closure.

Preferably, in certain embodiments, each of the handles is p-shaped, each having a limb that extends generally perpendicular to the direction of rotation of the cover relative to the body member during closure. In the preferred arrangements, each of the legs includes a banana-shaped segment oriented to engage a selected segment of the p-shaped handles during closure. Each end of each p-shaped handle extends far enough to block rotation of the cover, relative to the body member, by engaging a portion of a selected leg beyond a selected amount of rotation, during closure .

In other aspects, an air cleaner assembly having a body member, a removable cover and an activated rotation closure assembly is provided. The activated rotation closure assembly includes a handle coupling and a plurality of legs. The handle arrangement comprises a plurality of handles, each handle preferably comprises an arrangement of the outer perimeter wall defining a central hole. Preferably, each of the legs includes a segment oriented to engage a selected segment of handles during closure.

In certain preferred embodiments, the movable engagement finger is provided to be selectively placed between the coupled and released positions. When in the engaged position, the coupling finger is preferably positioned to secure a grip selected between a portion of the engaging finger and a member of the selected leg to prevent rotational movement of the cover relative to the body member. When in the released position, the engaging finger is preferably released from a selected grip to allow the selected rotational movement of the cover relative to the body member.

In other aspects, a method for securing a cover member to a member of the body is provided.

The method includes a pedestal for covering an open end of a body member with a cover and rotating the cover relative to the body member. Preferably, a depression pedestal of a coupling finger is carried out in a coupling position, to block the unintended reverse rotation of the cover relative to the body member Brief Description of the Drawings FIG. ÍA is a frontal lateral elevational view of a first embodiment of a housing for an air cleaner, according to the description of U.S.S.N. 08 / 928,684; FIG. IB is a view of the upper, elongated, fragmented plane of a portion of the housing of FIG. 1A used to receive a mounting bracket; FIG. 2 is an enlarged cross-sectional view of the air cleaner housing shown in FIG. ÍA, taken and shown in general along line 2-2 without any mounting of the internal filter element therein; FIG. 3 is a right elevational view of the air cleaner housing of FIG. 1A, and that it represents certain ornamental features of the shelter cover; FIG. 4 is an enlarged perspective view of the air cleaner of FIG. 1A, and that represents a mounting of the internal filter therein; FIG. 5 is a very schematic, elevational, lateral, elongated, fragmented view of a closure arrangement for the housing of the air cleaner shown in FIGS. 1-4, in an open position and before coupling; FIG. 6 is a view of the closure arrangement analogous to that shown in FIG. 5, which represents the closing arrangement during the coupling; FIG. 7 is a view of the closure arrangement analogous to that shown in FIGS. 5 and 6, which represents the closing arrangement in a closed position and after the total coupling; FIG. 8 is an elevational view of the front side of a second embodiment of a housing for an air cleaner shown in U.S.S.N. 08 / 928,684, which includes a finger-closing assembly; FIG. 9 is an elevational view of the right side of the air cleaner housing in FIG. 8, and that represents certain ornamentation on the housing cover; FIG. 10 is a fragmentary, elongated, partially cross-sectional and very schematic view of the closure finger assembly for housing the air cleaner shown in FIG. 8, showing the closure finger assembly in an open position and the closure coupling in an open position; FIG. 11 is a view analogous to FIG. 10, which represents the closing finger in a closed or engaged position and the closing arrangement in a closed position; FIG. 12 is an elevational view of the front side of a third housing for an air cleaner shown in U.S.S.N. 08 / 928,684, analogous to that shown in FIGS. ÍA and 8; FIG. 13 is an elongated, fragmented, lateral elevational view of a bushing or leg arrangement used in various embodiments, and representing certain dimensional lines; FIG. 14 is an elongated, fragmented, highly schematic, lateral elevational view of a projection or handle used in the U.S.S.N. 08 / 928,684, and that represents certain dimensional lines; FIG. 15 is an elevational view of the front side, of partially transverse section, of a mounting bracket used with an air cleaner housing according to U.S.S.N. 08 / 928,684; FIG. 16 is an elevational, partially fragmented, highly schematic view of the mounting bracket of FIG. 15 coupling an air cleaning housing of U.S.S.N. 08 / 928,684; FIG. 17 is a side elevational view of the body member of an alternate embodiment; FIG 17A is a cross-sectional view taken along line 17A-17A, FIG. 17; FIG. 18 is an enlarged fragmentary plan view of a portion of the handle of the array shown in FIG. 17; FIG. 19 is an elongated side elevational view of a cover member sized and configured to engage with the body member of FIG. 17; FIG. 19A is a view of the upper plane of the cover member shown in FIG. 19; FIG. 20 is a cross-sectional view of the arrangement shown in FIG. 19; FIG. 20 is generally taken along line 20-20, FIG. 19A; FIG. 21 is a view of the elongated fragmentary plane of a portion of the leg of the array shown in FIG. twenty; FIG. 22 is a side elevational view, elongated fragmentary schematic of a closing arrangement for the housing of the air cleaner of FIGS. 17-21 represented in an open orientation and before coupling; FIG. 23 is a view of the closure arrangement of FIG. 22, represented during the partial coupling between the closing and open orientations; FIG. 24 is a view of the closing arrangement of FIGS. 22 and 23 represented after the total coupling; FIG. 25 is a view analogous to FIG. 24, which also shows a finger, closing in a closed orientation; FIG. 26 is a view analogous to FIG. 25, but representing the closing finger in an open, withdrawn orientation; FIG. 27 is analogous to FIG. 18, with the lines and angles represented with reference to the preferred dimensions; FIG. 28 is analogous to FIG. 20, with the lines and angles represented with reference to the preferred dimensions; FIG. 29 is analogous to FIG. 10, which represents certain modifications and is shown with a coupling finger in an open orientation; FIG. 30 represents the arrangement of FIG. 29 in a closed orientation; FIG. 31 is a schematic, fragmentary view analogous to FIG. 5, but representing an alternate closure arrangement; FIG. 32 is a schematic, fragmentary view of the arrangement of FIG. 31, shown partially moved with respect to a closed position; Y FIG. 33 is a schematic, fragmentary view of the arrangement of FIGS. 31 and 32, shown rotated with respect to a closed position.

Detailed Description of the Invention DESCRIPTION OF U.S.S.N. 08 / 928,684 The principles of the U.S.S.N. 08 / 928,684 can be incorporated in air cleaners of a variety of sizes and configurations. In the appended figures, the principles are modeled in plastic arrangements that have distinctive topical characteristics. These distinctive topical features are the subjects of U.S. design patent exposures. published on the same date as U.S.S.N. 08 / 928,684; i.e. September 12, 1997. Selected references to these distinctive features will also be made here.

General description The reference number 1, FIG. ÍA, indicates an assembly of the air cleaner according to U.S.S.N. 08 / 928,684. The assembly of the air cleaner 1, in FIG. ÍA, is represented in the elevation view of the front side. The assembly 1 includes an outer housing 2 defining an exterior 3 and the interior 4 (FIG 2). The air to be filtered enters the housing 2 by means of an inlet 5. Inside the housing 2, the air is filtered. Then the air passes out through outlet 6. Then the air is directed to the downstream equipment, for example, a machine.

With reference now to FIG. 1A, the housing 2 of the assembly of the particular air cleaner 1, represented mainly, comprises the molded plastic components. In particular, the housing 2 comprises a molded plastic body member 8 and a molded plastic cover 9. Furthermore, the outlet 6 comprises the molded plastic outlet pipe 10. As will be understood from the further description below, the pipe of outlet 10, for the particular arrangement shown, fits into a portion of the body member 8.

Certain principles of the description of U.S.S.N. 08 / 928,684, described above in detail, relate to the manner in which the cover 9 is secured to the member of the body 8. The details relating to this are described above, a general discussion is further presented.

With reference still to FIG. ÍA, exterior 3 of housing 2 includes: (a) certain distinctive topical features; and also, (b) other characteristics mainly to facilitate the function or operation. For example, the housing 2 includes the outer flanges 13 therein. The flanges 13 are axially aligned and extend through the body member 8 and the cover 9. The flanges 13 serve primarily to provide a distinctive appearance. Observe that the body member 8 and the cover 9 are molded so that the portions of the flanges 13a and 13b therein, respectively, are aligned to provide the flanges 13 of continuous and distinctive appearance, when the cover 9 is properly positioned in closing and covering relationship with respect to the body member 8, as shown in FIG. 1A.

With reference still to FIG. ÍA, the outer surface 3 of the housing 2, in a portion comprising the body member 8, is provided with spaced radial flanges or rings 14. Although the number and spacing of the rings 14 is not critical, these rings 14 serve in part to reinforce the plastic body member 8 in the regions where a mounting bracket, discussed above, will be placed to secure the air cleaner assembly 1 to the equipment such as a truck.

Referring to FIG. IB, in the portion 16 of the member of the body 8, the housing 2 includes a plurality of separations or indentations 17. The separations or indentations 17 are generally rectangular (in view of the upper plane) and are defined by the rings 14 and the extensions 18. The indentations 17 are positioned to selectively receive the portions of a mounting bracket, as described below, during assembly of the air cleaner assembly 1. As a result of the closure between the mounting bracket portions and the separations or indentations 17, the air cleaner assembly 1 can be easily secured at a selected rotational position relative to the equipment on which it is mounted. That is, the coupling between the indentations 17 and the mounting bracket prevents rotation of the air cleaner assembly 1 relative to the support assembly and / or the equipment.

The attention is now directed to the FIGS. 15 and 16. In FIGS. 15 and 16, there is shown a mounting bracket 20 (having the open interior 21) used with the air cleaner assembly 1 as shown in FIG. Ia. The mounting bracket 20 has an arched configuration with the legs 22 and 23 defining an open interior 21. In use, legs 22 and 23 extend. open and the air cleaner assembly 1 is positioned to extend through the interior 21. The mounting bracket 20 includes an outer surface 25 having indentations 26 therein. A desired rotational orientation would be selected between the air cleaner assembly 1 and the mounting bracket. The indentations 26 would then be placed to couple the selected ones of separations or indentations 17 in the air cleaner assembly, to achieve the desired rotational configuration. The mounting bracket 20 is easily secured to a vehicle, for example, by means of screws or other suitable fastening arrangements.

A mounting bracket analogous to that described herein is described in detail in U.S. Pat. No. 5,545,241, the full description of which is incorporated herein by reference.

The attention is now directed to FIG. 3, in which a right lateral elevational view of the assembly 1 is shown. In FIG. 3, the outer end surface 34 of the cover 9 is observed. In 35, a distinctive swirl figure molded in the cover 9 is shown. The swirling figure 35 does not serve as a utility function in connection with the filtration operation of the assembly 1, but instead it provides a distinctive appearance. It should be noted that, in the preferred embodiment shown, the outer surface 34 extends as a cover to the end of the housing and there are no openings therethrough.

As also shown in FIG. 3, certain indicia 36 are molded on an outer surface of the terminal surface 34 of the cover 9. The molded indicia 36 provide the instruction in connection with a service operation to be formed in an air cleaner assembly 1. In particular, the indicia 36a indicate the instructions for moving (turning) the cover 9 to open or disconnect the cover 9 of the body member 8; and, the indicia 36b indicate the instructions for moving (rotating) the cover 9 relative to the body member 8 to achieve a closure engagement therein.

Still referring to the surface 34, attention is now directed to the molded element 40. The molded element 40 comprises a perimetric projection 41 defining a flat central area 42. The perimetric projection 41 preferably defines a geometric figure or perimeter which is not " rotationally symmetric. " The particular perimeter 41 shown is circular in the portion 44, but flat in the region 45.

It is noted that, in typical uses, the printing of the markings 44a or the pad will be used to provide information in the planar area 42. The lack of circular or rotational symmetry with respect to the configuration of the perimeter projection 41 can be used to help locate the index information, for example, the position of the brand. The marks that would fill the flat area 42 circumscribed by the perimeter projection 41, would need not to be circular (and not radially symmetric) to fill the area. In this way, the information could be classified in relation to a flat end of the mark, to ensure the mark on the cover 8. It is anticipated that the information will typically be printed on the mark in one position, relative to the flat edge, so that after mounting on a vehicle, the information will appear substantially in vertical projection with respect to a reader. As an example, a mark 44a is shown with the "upper" plane and the direction of the arrows. An installer would know the position of the air cleaner 1 in a vehicle with the arrows pointed generally upwards.

For the arrangement shown, the circular section 44 extends through a radius of 35 mm, with the flat area 42 defining a cord 45 extending under an arc of 35 ° -55 °, preferably an arc of 45 °.

One reason why the proper rotational movement of the air cleaner assembly 1 may be important will be understood with reference to FIG. 1. In FIG. 1, cover 9 is shown having a particulate outlet pipe 46 therein. The outlet tube 46 is provided with an outlet cover 47. In general, it is preferred that the outlet tube 46 be directed downward, so that a particulate material is collected within the cover 9, can be easily expelled outwardly and down through the tube 46. Exit tubes are generally shown of the type shown in FIG. 1, see for example U.S. Pat. 5,545,241 incorporated herein by reference. It is noted that the particular design of the tube 46, FIG. 1 differs from those of the Patent 5, 545,241 in which the tube 46 extends orthogonally (at an angle of 90 °) relative to the longitudinal axis 48. The tube of U.S. Pat. 5,545,241 extends outward from the housing at an acute angle relative to the longitudinal axis (i.e. at an angle less than 90 °). The approximately 90 ° or orthogonal extension of the tube 46, FIG. 1, was selected for convenience. It is noted that the outlet tubes are optional and could not be used in some applications of the principles described herein.

As previously indicated, for the particular arrangement shown, the outlet tube 10 is a separate piece from the rest of the housing 2, and is fitted by the closure in the body member 8. The particular outlet tube 10, shown as an extension axial "linear". That is, in the passage through the outlet tube 10, the air exiting the housing 2 moves in that of the longitudinal axis 48. The adjustment of the closure results from the annular flange 11, FIG. 2.

In FIG. 12, an alternate output configuration is shown at 50. The outlet tube 50 is a "90o exit" tube. It can be seen that if the outlet 50 is positioned in the place of the outlet pipe 10, an air outlet housing 2 will move earlier in the direction of the axial line 48 and then turn, as a result of the elbow 51, to a turn of 90 °. It is noted that the arrangement of FIG. 12 includes other modifications optional to the assembly of FIG. 1 as described above.

Although a variety of alternate configurations could be used, it is anticipated that for typical applications and the convenient joining of downstream tubes and other equipment, either a linear tube configuration as shown in the outlet tube 10 or a tube will be used. 90 ° elbow outlet outlet. By utilizing appropriately molded closure adjustment configurations, assembly 1 can be configured as a configuration. That is, typically the elements of the body member 8 and the cover 9 would be the same, with respect to the type of outlet tube, i.e. the outlet tube 10 or the outlet tube 50 is used.

The attention is now directed to FIG. 4. In FIG. 4, an expanded perspective view of the air cleaner assembly is shown. The attention is directed to the internally received filter element 55 and the security element 56. Although a variety of configurations of the filter element design and the security element could be used, the configurations shown in FIG. 4 are typical. It is noted that the closure assemblies according to the present disclosure could also be used with air cleaners that do not have safety elements.

The filter element 55 could be of the general type previously sold by Donaldson Co., Inc. of Bloomington Minnesota, the agent of the present invention. Such filter elements typically include a Donaldson radial seal element in region 58. That is, the material in region 58 would be compressed against a portion of the outlet tube during assembly. Certain principles in relation to such seals are described in EP 0329659, incorporated herein by reference. For Donaldson Co., it could be preferred to include the indicia in the filter element analogous to indicia 35, FIG. 3, to facilitate the recognition of the relationship.

The security element 56 is a conventional security element such as the type previously sold by Donaldson Co. , Inc. The security element 56 includes, in region 60, an external radial seal. The seal of the security element 56 in the position is made by compressing the material in the region 60 within the interior of a portion 61 (FIG 2) of the outlet tube 10 (50 in FIG 12). Note that the security element 56 is dimensioned and configured to be received within an open external volume 62 of the primary filter element 55 during assembly. The element 55 can be removed without removing the security element 56.

The attention is again directed to FIG. 2. In FIG. 2 the installed item is not displayed With reference now to FIG. 2, note that the outer side wall 65 of the housing 2, which in use circumscribes an element of the filter, is formed in part by the body member 8 (ie the section of the side wall 65a) and the cover 9 (ie the section of the side wall 65b). That is, portions of the longitudinal extension of the side wall 65 are provided by the body member 8 and the cover 9.

Referring now to FIG. 2, the body member 8 includes the internal, circular or cylindrical deviating groove 67. As the air enters through the inlet 5, FIG. 1, is directed, partly against the diverting slot 67. Preferably, the inlet 5 is oriented "tangentially", so that the air is directed against the diverting slot 67, is directed in a circular or cyclonic spiral pattern along the interior 68 of the side wall 65. To facilitate the development of a "cyclonic" pattern, the body member 8 includes an internal ramp 69 (FIG 1) therein. Elements such as the diverting groove 67 and the internal ramp 69 have been used in previously existing Donaldson air cleaning systems, such as that shown in the 5,545,241 Patent incorporated herein by reference.

Still referring to FIG. 2, the side wall section 65a of the body member 8 includes the end portion 71. The end portion 71 has a ring configuration defining the surface 72.

Similarly, the section of the side wall 65b of the cover 9 includes the end portion 75 with the ring surface 76. During assembly, the ring surface 76 engages or faces the ring surface 72. Here, the ring surface 76 , which is generally in cylindrical configuration, will sometimes be referred to as the "engaging surface of the body member" or the terminal portion 75 (or cover 9); and the ring surface 72, which is also generally in cylindrical configuration, will sometimes be referred to as the "cover engaging surface" of the terminal portion 71 (or body member 8). For the particular arrangement shown, during assembly, the ring surface 76 circumscribes the surface of the ring 72 in opposite or juxtaposed or superimposed orientation, spaced sufficiently for the placement of the portions of a closure assembly, described later, therebetween.

The section of the side wall 65a further includes the radial flange or projection 78 therein. The flange 78 is directed radially outward from the surface 72 preferably orthogonal to the shaft 48. The flange 78 provides a stop to the movement of the end 75 on the body member 9 during closure. The flange or projection 79 provides an analogous stop, because it will abut the handles 98 as described below.

The Closing Assembly The attention is now directed to the FIGS. 2 and 5-7. According to U.S.S.N. 08 / 928,684, the air cleaner assembly 1 is provided with a closure assembly 90. The closure assembly provides a closure coupling between the cover 9 and the body member 8, when selected. That is, the closing arrangement has a closed or closed orientation; and, an open orientation. When it is the open orientation, the body member 8 and the cover member 9 are easily separated from each other by the relative axial movement of one against the other, typically the axial movement of the cover 9 away from the body member 8. On the other hand, when the closure assembly 90 is in the closed orientation, the separation of the cover 9 from the body member 8 is inhibited. More specifically, axial movement of the cover 9 of the body member 8 is prevented; and, preferably, sufficient inhibition is provided to the rotational movement between the cover 9 and the body member 8, so that deliberate separation (after closing) does not occur.

The closure assembly 90 is configured to operate by movement between the closed and open orientation due to the relative rotational movement of the cover 9 with respect to the body member 8. As a result of this configuration, the particular closure assembly 90 of the arrangements Preferred features characterized herein, is an assembly of "activated rotation" or "activated rotation". By the terms "driven rotation" and "activated rotation" is meant the operation between the closed and open orientations which are presented by the rotational movement of one with respect to the other of the cover 9 and the member of the body 8 with respect to the other. the other. Typically, when the air cleaner assembly 1 is mounted on a vehicle, the selected movement will be rotational movement of the cover 9 with respect to the stationary body member 8. That is, the body member 8 will be secured in position by a support assembly such as the mounting bracket 20 (FIG 16), and it is the cover 9 that will be rotated and moved to allow access to the interior 4 of the housing 2 (FIG 2).

The particular preferred closure assembly 90 shown is a projection and cap assembly or leg and handle 91. The leg and handle closure assembly 91 includes a cap or leg portion 93, FIG. 2, and a projection portion or gripper 94. For the particular preferred arrangement shown, the cap or leg portion 93 comprises a plurality of radially spaced bushing or legs 97 positioned on the cover 9; and, the projection portion or grip 94 comprises the plurality of projections or handles spaced radially, 98 placed on the body member 8. The caps or legs 97 and the projections or handles 98 are preferably shaped and oriented with respect to one another. another for a coupling and decoupling selected due to the operation of the closure assembly 90. For the arrangement shown, a projection or handle 90 is positioned for the engagement of each of the legs 97, and vice versa, during closure. of the ferrules or legs 97 includes a portion 100 which, in use, closes beyond or around a portion 101 of a projection or handle 98. Also, preferably, each projection or handle is engaged by a ferrule or leg. Thus, in certain preferred systems there are an equal number of handles (projections) and legs (ferrules). screws or legs 97 and projections or handles 98 are provided for vent operation.

The attention is now directed to the FIGS. 5-7 in which each of the projections or lugs 98 is represented. In FIGS. 5-7, the portions of the projection 98 are shown in dotted lines in part, because the portions shown schematically are viewed from an "inner" orientation, i.e. through a portion or slot 72 that has been removed to facilitate examination. Each grip 98 preferably comprises a projection extending radially outwardly from the surface 72 (FIG 2) and spaced from the slot 78 (FIG 2). Each handle 98, FIGS. 5-7, includes a pair of spaced projections 109 and 110 having the central concave area, the space or slot 112 placed therebetween Preferably, the slot 79, FIGS. 2 and 5-7, includes a plurality of spaced projections, indentations or ridges 114; each indentation or ridge 114 is positioned to align with a corresponding slot or slot 112 in a selected grip 98, during the closing engagement. The indentations or ridges 114 are preferably of one dimension and shape to project at least partially into the slot 112 due to the closure, for frictional engagement or resistance to rotation. Preferred indentations or flanges, as shown in FIG. 2, are elevations of curved configuration.

Referring again to FIGS. 5-7, the projection 109 includes the rounded surface 116 therein to facilitate engagement with the indentation or flange 114, during closure; and, the rounded surface 117 therein to facilitate decoupling, during opening. A curved surface 118 in the projection 110 also facilitates that of s a cop 1 ami in t o. Preferred relative configurations of the indentation or flange 114 and projections 109 and 110, to ensure engagement, are shown in FIGS. 5-7. The preferred relative dimensions of the parts are described below.

Referring to FIGS. 5-7, the projection or handle 98 further includes the rear surface 120 therein. The rear surface 120 is positioned to support a closure surface, specifically the surface 133, of an associated bushing or legs 97, during assembly.

Referring now to FIGS. 5-7, the adjacent rear surface 120 and extending forward toward the tip 125, the projection or handle 98 includes the rotating surface 126. The rotating surface 126 is angled and dimensioned to slide easily along the portion 127 of the cap or leg 97, during the closing equipment.

The attention is now directed to FIG. 5. In FIG. 5, a projection of bushing or leg 97 is depicted. The projection of leg 97 includes two general sections indicated at 128 and 129. Section 128 provides a recoil stop 133 for rotational closing movement. Section 129 projects from section 128 and extends or projects circumferentially. Section 129 is the portion that will be secured around or behind a coupled handle projection 98, during closure. In this way, during closure, the section 129 and the rim 114 are located on opposite sides of the handle 98. Preferably, the projection of the leg 97 comprises a molded projection extending out of the slot 79. In this context, the term "circumferentially extending or projecting" and several thereof, means that the longitudinal section or projection 129, of section 128, is generally circumferential. That is, section 129 is not substantially projecting, in longitudinal extension, toward or away from central axis 48, FIG. 2, in relation to section 128.

Still referring to FIG. 5, the section 129 includes the tip 131, the ramp or projecting surface 127 and the spaced surface 134. The spaced surface 134 extends between the section 128 and the elevation 135. The elevation 135 comprises an end of the projected surface 127.

In use, the rounded tip 131 is pressed against the surface 126 of the projection or handle 98, when engagement begins. The surface 126 or the handle 98 slides along the surface 127 of the bushing or stops 97, as the coupling is presented. Eventually, the elevation 135 of the portion of the cap or leg 97 slides after the rear surface 136 of the projection or grip 98, in which the point projection or the grip 98 is set against the spaced surface 134, generally secured between elevation 135 and section 128 (surface 133). That is, a closure is achieved over the center. The indentation or flange 114 is positioned, so that when the coupling level described in the previous part is presented, the indentation or flange 114 is positioned within the space or slot 112. When the parts are appropriately configured with respect to one with respect to another, the net results from the movement previously described in this paragraph, is a closing fit, on the center, the rotational closing coupling between the bushing or the leg 97 and the projection or handle 98. The opening can be easily made by a movement Inverse rotational force sufficient to overcome the resistance provided by rounded lift 135 and rounded indentation 114.

The movement between the closure of the opening will be understood with reference to the positions indicated in FIGS. 5, 6 and 7. The progression of FIG. 5 to FIG. 7 is in general the movement of "closing"; and, the first movement of FIG. 7 to FIG. 5 would be open. It can be observed by comparing FIGS. 5, 6 and 7 to FIG. 2, that the positioning that the coupling-uncoupling of FIGS. 5-7 would be a rotational movement of the cover 9 relative to the member of the body 8.

It is noted that the components should be dimensioned and configured in a closed position, FIG. 7, the coupling is comfortable but not adjusted. Despite this, the unacceptable levels of "noise" of the cover 9 on the body member 8, during use, will not be presented for typical systems. In some arrangements this will be because the filter element 55, FIG. 4, will typically have compressible, soft end cap members and will be oriented in size to be slightly compressed, in an axial direction, between the body member 8 and the cover 9. This slight compression of the compressible end caps, smooth, will provide a noise damping effect between the components shown in FIGS. 5-7. Conventional filter elements of the type previously described and available from Donaldson Company have end caps compressible for this purpose, the appropriate dimensions provided being chosen.

The preferred dimensions described in U.S.S.N. 08 / 928,684 for the various components are described hereinafter.

It will be understood that in alternating arrangements, the projections or handles could be positioned on the cover, and the members of caps or legs could be positioned on the body member; or, a mixture of two could be positioned in each one. However, the specific arrangement described and shown in the drawings is convenient and advantageous for manufacturing and assembly.

For the arrangement shown, the handle members or legs are evenly spaced radially over the body member 8 and the cover 9, respectively. The spacing, about the center, is approximately 22.5 °, and there is 16 from each member. It is noted that variations are used. Preferably, however, there will be at least 10 projections or handles and 10 bushes or legs, within the air cleaning arrangements of the sizes described herein. More preferably, each bushing (leg) is engaged by a projection (handrail) and each projection (handrail) is engaged by a bushing (leg), during closing. Also, preferably, the uniform radial spacing will be selected, so that the specific rotational orientation between the cover 9 and the body member 8 is not dictated, to a greater degree, by the radial positions of the legs 97 and the handles 98. That is, convenient and secure closure can occur without the substantially radial adjustment of the positioning of the cover 9 against the body member 8.

In the review of FIGS. 2 and 5-7, and the above descriptions, certain advantages will become apparent with respect to the described preferred arrangement. For example, the "lock assembly" could be referred to as "internal". That is, the components that close during closure, ie, the projections or handles 98, the bushes or legs 97 and the indentations or flanges 14, are oriented so that, when mounted during closing, they are positioned below the cover 9, without opening exposing them directly to the environment. That is, when the cover 9 is positioned on the body member 8, the identified closure assembly components are positioned below an outer surface 65b of the cover member 9, i.e. under an outer surface 65 of the housing 2. This means that they are not exposed to the elements. In this way, interference with the closing and opening operation due to the environment of use or the elements is not likely, for example, snow, ice, road tar, mud, etc. In addition, they are less likely to become damaged in the use environment.

Also, the preferred configuration shown does not result in the generation of a substantial turning force or resistance between the cover member and the body during the closing engagement. That is, there is no pressure that tends to press or bend the cover away from the body member after the closed orientation, FIG. 7. Instead, the projections or holders 98 rest (and separate), over the center, in the spaces in the bushes or legs 97. This means that the portions of the closure assembly, for example, the members of the legs, they are not likely to become bent, deformed or cut due to forces while closing. Alternatively established, the force of rotation or resistance occurs briefly during the passage over the center, but is released in the closed orientation Subsequently, some preferred dimensions are provided for the projections or handles and caps or legs suggested. It can be seen that variations of these can be used. In general, the preferred dimensions given are for the preferred arrangement characterized, having an internal dimension of approximately 8 inches in diameter. Variations of such diameter, if substantial, could justify a proportional modification in certain dimensions of the projections or handles and corresponding caps or legs. Nevertheless, in some applications, the maintenance of the same dimensions and proportions will be possible, while the overall diameters of the housing are varied. Similarly, if a diameter of the housing is sufficiently reduced, it may be desirable to have a number smaller than 16 of the projections or handles and bushes or legs. This will be a chosen design issue and it refers to the ease of molding and convenience of the sample.

For the preferred embodiment, each of the legs or handles 98 and. Bushings or legs 97 is designed using efficient and convenient manufacturing techniques.

Preferably, the legs or lugs 98 and the ferrules or legs 97 are injection molded, together with their respective housing components, ie, the body member 8 and the cover member 9. When injection molding is applied, it is advantageous Include a stretch angle on the manufactured components to help unmold the components. By "stretching angle", it is understood that one of the surfaces of the component being manufactured is spaced or projected at an angle from an opposite surface of the component to be manufactured. In the preferred embodiment, the stretching angle is about 0.5-3 degrees, preferably about 1 degree.

One Finger Link (Optional) The attention is now directed to the FIGS. 8-11. In FIG. 8, a cover is shown including an optional mating finger construction therein. More specifically, the arrangement of FIG. 8 includes a coupling finger assembly 150. The coupling finger assembly 150 includes a slidable coupling finger 151 mounted in slot construction or via 152. In assembly 150, the slidable coupling finger 151 slides easily between two positions; a first, release position (B); and, a second coupled position (A). When the coupling finger 151 is in the released position, the cover 209 can be rotated relative to the body member 208, to close or open the closure assembly. When the slidable engagement finger is in the engaged position, the rotational movement of the cover 209 relative to the body member 208 is inhibited to open or close the closure assembly 290, FIGS. 10 and 11. In general, in FIG. 8, the slideable coupling finger 151 is shown in the closed orientation at A; and in the open orientation in B.

The assembly of the coupling finger 150 operates by sliding a portion of the coupling finger 151 to a position on an opposite side of an associated projection or handle 98 of the section 128 of an associated leg member or leg 97, FIGS. 10 and 11. In this manner, the handle 98 becomes rotationally separated between the sliding engagement finger 151 and the associated L-shaped leg 97, during engagement. When the slideable engagement finger 151 slides to the decoupled position, FIG. 10, the coupling finger 151 moves out of the rotational motion locking position. In this way, the movement to open is possible.

The attention is now directed to the FIGS. 10 and 11. With reference in FIG. 10, the slidable engaging finger 151 includes: the manual portion 155; the leg portion 156, defined between the side edges 157 and 158; and, the base 160. The projection of the base 160 is the extension of the curved finger 162; and the projection from the edge 158 is the flange 164 with the outer flange or projection 165 therein. The tab 164 and the curved finger 162 define the area or space 167, along a lower portion 168 of the edge 158.

In FIGS. 10 and 11, the finger 151 is shown mounted on the cover 209 within the space 152. The wall of the cover 209 includes a U-shaped opening 159.

The U-shaped opening 159 provides a window or an open space to allow the finger 151 to be visible. That is, the open space defined by the U-shaped opening 159 exposes a portion of the portion of the leg 156 to the external atmosphere. The edges of the U-shaped opening cover space 152.

In operation, the coupling finger 151 slides in the slot or track 152 having the opposite side walls 170 extending along the opposite edges 157 and 158. The length of the leg portion 156, relative to the space 152, is generally selected so that the curved finger 162 projects beyond the slot 152 in consideration of whether the finger 151 is in the engaged or uncoupled position.

Typically, the finger 151 will be molded of a plastic material such as acetyl copolymer, available under the trademark of Ultraform® N2320 from BASF, located at 3000 Continental Drive North, Mount Olive, NJ 07828. As a result, the tab 164 and the Curved finger extension 162 will flex a lot. During assembly, then, the tab 164 and the extension of the finger 162 will compress slightly as they slide through the slot 152 and expand after they exit the open end of the slot. The flange or projection 165 will inhibit the engaging finger 151 from slipping unintentionally through the slot 152 until a manual pulling force 155 is applied.

It could be advantageous to have the finger 151 as a different color from the rest of the housing, to improve visibility. For example, a yellow finger and a black housing could be used.

Preferably, the extension of the curved finger 162 is dimensioned so that it will extend, during engagement, to a position adjacent to a portion of the projection or grip 98, FIG. 11, when the sliding engagement finger 151 is in the engaged position. It can be seen that as a result, the handle 98 becomes rotationally separated between the extension of the curved finger 162 and a member of the coupled leg 97, during the closing of the closure assembly and the engagement of the assembly of the finger 150, preventing relative rotation between cover 209 and body member 208.

The mounting of the coupling finger 150 provides security to the engagement of the cover 209 on the body member 208. However, it is not a requirement and is perceived as optional. That is, the closure assembly described herein, can be provided with the appropriate resistance, to open, ensure engagement and retention of the selected coupling even in the absence of a safety mechanism such as the assembly of the coupling finger.

The attention is now directed to FIG. 9. In FIG. 9, a right lateral elevational view of the arrangement shown in FIG. 8. Handle 155 of finger 151 is visible. It can be seen that the handle 155 can (Be configured such that the construction with respect to the operation of the closure assembly is still visible.) Note that the final view shows the indicia 176 for the operation of the finger 151, as well as the indications for the rotational operation. of the closing assembly.

The attention is now directed to FIG. 12. FIG. 12 is an elevational view of the front side in general analogous to FIG. 9, but showing an alternate optional embodiment including the curved exit member 50. As previously described, such a curved exit member could also be used with the embodiment of FIG. 1.

Preferred Specific Arrangements of U.S.S.N 08/928, 684 In this section of U.S.S.N. 08 / 928,684 an example of a group of materials and operating specifications was provided. These were intended as an example. A wide variety of materials and alternate dimensions can be used.

The described arrangement would be particularly configured for use in a system with the following characteristics: typical air flow velocity of approximately 100-220 CFM (approximately 2.8-6.2 cubic meters per minute); and the typical pressure drop of approximately 4-8 inches of water (approximately 100-205 mm of water).

The filter element 55 has an outer diameter of about 135-140 mm, preferably about 138 mm, and an internal diameter of about 75-85 mm, preferably about 81 mm. Element 55 has an overall length of about 320-325 mm, preferably about 322 mm. It is a primary filtering element Donaldson P827653.

The body member 8 has a length of about 260-270 mm, preferably about 267 mm. It has an external diameter in the portion 71 of approximately 205-215 mm, preferably approximately 211 mm, and an internal diameter in the portion 71 of approximately 205-210 mm, preferably approximately 207 mm. Each of the tabs 13 in the body member 8 has a width of about 4-8 mm, preferably about 6 mm. There are approximately 16 tabs 13 in the body member 8. There are approximately 12 rings 14 in the body member 8, and each of the rings 14 is spaced approximately 5-15 mm, preferably approximately 10 mm, from an adjacent ring. Each of the rings 14 has an outer diameter of approximately 209-212 mm, and a width of approximately 1-3 mm, preferably approximately 2 mm. The slot 78 extends a distance of approximately 7-12 mm, preferably approximately 9 mm from the side wall section 65 of the body member 8, and approximately 30-40 mm, preferably approximately 34 mm from the base of the body member 8 and adjacent to portion 71.

The diverting slot has a length of approximately 125-135 mm, preferably approximately 132 mm, and an outer diameter of approximately 165-175, preferably approximately 170 mm. The distance between the inner wall of the body member 8 and the slot 67 is approximately 15-20 mm, preferably approximately 17 mm.

The inlet 5 has an outer diameter of about 90-100 mm, preferably about 95 mm. The outlet 6 has an outer diameter of about 85-95 mm, preferably about 89 mm, an inner diameter of about 80-90 mm, preferably about 85 mm, and a length of about 110-120 mm, preferably about 115 mm.

The cover 9 has a length of approximately 130-140 mm, preferably approximately 134 mm. On the surface 76, the cover 9 has an internal diameter of approximately 210-215 mm, preferably approximately 213 mm, and an outer diameter of approximately 225-230 mm, preferably approximately 227 mm. There are approximately 16 tabs 13 on deck 9.

The outlet tube 46 has an outer diameter of about 55-60 mm, preferably about 57 mm, and an inner diameter of about 47-52 mm, preferably about 50 mm.

Body 8 and cover 9 are constructed of plastic, such as glass filler propylene; available under the Higlass ™ trademark, from Himont Advanced Materials, located at 2663 Eaton Rapids Road Lansing, MI 44911.

There are a total of about 16 leg bushes 97. With reference to FIGS. 5-7 and 13, the section 128 has a length 300 of about 12 mm, and a width of about 2-3 mm, preferably about 2.4 mm. Section 129 has a length 301 to the final tip 131 of approximately 21-22 mm, preferably approximately 21.6 mm and a length 302 to the edge of the elevation 135 of about 12-13 mm, preferably about 12.3 mm. Section 129 has a width of approximately 3 mm. The projected surface 127 is at an angle 303 from a horizontal plane of approximately 22 °. The projected surface 127 has a length between the elevation 135 and the tip 131 of approximately 9 mm.

The tip 131 is in a radius of approximately 0.9 mm. The spaced surface 134 of section 129 is approximately angled 1 ° from the flat surface of section 129.

The elevation 135 is in a radius of approximately 1 mm. It has a height 304 from an edge of section 129 of about 3-4 mm, preferably about 3.5 mm.

The half of the indentation 114 is at a distance 305 from the section 128 of about 7-8 mm, preferably about 7.4 mm. It is in a radius of approximately 11-12 mm, preferably approximately 11.5 mm. A distance of about 0.1-1 mm, preferably about 0.2 mm, of section 128 is projected.

The bushes or legs 97 have a distance 307 of about 8-9 mm, preferably about 8.5 mm from the elevation 135 to the slot 79. It has a distance 308 of about 9 mm between the section 129 and the slot 79. It has a distance 309 about 8-9 mm, preferably about 8.2 mm between section 129 and elevation 114.

Each of the ferrules or legs 97 e curve along the inside edge of the cover 9 at an angle of approximately 11-12 °, preferably approximately 11.7 °, from outside the section 129 to the end of the tip 131 There are approximately 16 projections or handles 98. Referring now to FIGS. 5-7 and 14, each projection 109 has a length 320 of approximately 3-4 mm, preferably approximately 3.5 mm and a width 321 of approximately 2 mm. Each of the projections 110 has a length 320 of about 3-4 mm, preferably about 3.5 mm, and a width 322 of about 2 mm.

The slot 112 has a length 320 of about 3-4 mm, preferably about 3.5 mm, and a width 323 of about 4-5 mm, preferably about 4.2 mm. This defines an area of approximately 14-15 square mm, preferably approximately 14.6 square mm.

The rear surface 120 has a length 324 of about 1-2 mm, preferably about 1.1 mm. The surface between the rear surface 120 and the curved surface 116 has a distance of about 5 mm. It is angled from the vertical to an angle 326 of approximately 30 °.

The projected surface 126 extends at an angle 327 from the horizontal of approximately 16 °. It has a length 328 of about 9-10 mm, preferably about 9.6 mm.

The rear surface 136 has a length 329 of about 4-5 mm, preferably about 4.1 mm.

The distance 330 between the tip 125 and the projected surface 126 is approximately 2-3 mm, preferably approximately 2.9 mm. The surface between the rear surface 136 and the projection 110 has a distance 332 of about 4-5 mm, preferably about 4.3 mm, and an angle 331 of about 21 °.

The projections or grab bars 98 have the sloped walls, i.e., a stretch angle, which is inclined at an angle of approximately 1 °. That is, to help unmold the projections or handles 98, one of the flat surfaces is spaced or projected at an angle of about 1 ° from an opposite flat surface.

The projections or grabs 98 project approximately 5-6 mm, preferably approximately 5.5 mm from the outer surface of the body 8. The distance between the tip end of the portion 71 and the rear surface 120 is approximately 21-22 mm, preferably about 21.5 mm.

The finger 151 has a length from the handle portion 155 to one end of the extension 162 of approximately 125-135 mm, preferably approximately 130 mm. It has a width through the leg portion 156 of about 29-30 mm, preferably about 29.6 mm. The flange 164 has a length of about 18-22 mm, preferably about 20 mm, and its widest portion passes through a width of about 5-6 mm, preferably about 5.4 mm. The flange 165 is about a radius of about 1-2 mm, preferably about 1.5 mm, and is projected about 1-2 mm, preferably about 1.5 mm, of the flange 164. The extension 162 extends a distance of about 1-5 mm, preferably about 3 mm beyond the edge of the slot 152, when the finger 151 is in the closed position.

II. SOME ADDITIONAL OBSERVATIONS WITH RESPECT TO THE ARRANGEMENTS DESCRIBED IN U.S.S.N. 08 / 928,684 In this section, some additional comments and observations are made with respect to the arrangements described in U.S.S.N. 08 / 928,684. These comments generally refer to the additional observations made with respect to the features described in the drawing and / or the observations made based on the additional study of the systems described.

The first attention is focused on FIG. 2. As shown in FIG. 2 of U.S.S.N. 08 / 928,684, the end 71 of the body member 8 defines an outer edge 400. The outer edge 400 defines the open end of the body member 8, to receive an element here during use.

The end 72 includes not only the outer edge 400, but the pedestal or space 401. The pedestal or the space 401 is defined by the following characteristics: an internal diameter in the region 402 that is greater than an internal diameter in the region 403. The preferred arrangement such as that depicted in FIG. 2, the size of the pedestal would be at least 0.5 mm, typically 1.0 to 3.0 mm. Preferably, for the arrangement shown, the thickness of the edge 400 in the region 402 is about 1 to 3 mm, typically about 1-2 mm.

As shown in FIG. 2 of U.S.S.N. 08 / 928,684 in 400, a result of the different internal diameters of the regions 402 and 403 is a definition of the edge of the arrow 404 and an internal assembly 405. Also as shown in U.S.S.N. 08 / 928,684, in the cover 9 an internal space 410 is positioned, aligned aligned to receive a leading edge 404 there. The space 410 is defined between the outer wall 411 and an internal projection ring 412. The ring 412 is generally oriented to align with the assembly 405, when the cover 9 is operably placed on the body member 8 to close the housing 2. .

In use, the engagement between the edge 404 and the slot or space 410 provides a preferred time stamp to inhibit the passage of water through the wall of the housing along the seam or joint between the cover 9 and the member of the body 8.

Note that for the arrangement shown in FIG. 2, the projection of the edge 404, and the space 410, is up to a well-spaced position of the closing mechanism, and projects well into the end of the cover 9 of the outer edge 75, during assembly. This means that it will be substantially superimposed on the terminal region 72 with the surface area 411, ensuring a good seal of the fluid against the passage of moisture. For preferred arrangements such as those shown in U.S.S.N. 08 / 928,684, preferably the space 410 is placed at least 15 mm, typically 25 to 40 mm, within the cover 9 from the end 75. More preferably, the space 410 is positioned approximately 34 mm from the end 75.

Comparing FIGS. ÍA and 2, of U.S.S.N. 08 / 928,684 it will be understood that in the preferred arrangement described in such reference, the slot 78 is positioned so that when the edge 404 is positioned in the slot 410, as the cover 9 is positioned over the body member 8, the end 75 it is placed in aligned relation with the slot 78. The end 75 does not necessarily support ie, it touches the slot 78. However, preferably the opening or space between the end 75 and the slot 78, when the cover 9 is mounted on the member of the body 8, is not greater than about 5 mm, and is preferably less than about 2 mm, typically between 1-2 mm. When this occurs, the slot 78 operates to substantially close an open end of the end 75 against the passage of a substantial amount of dirt, snow, etc., between the cover 9 and the body member 8, at the location of the closure assembly. 90. More generally this was a referent in USSN 08 / 928,684 when it was described that the mechanism of turn closure was in general, an arrangement received internally or externally.

In general, it has been found that, for the preferred systems, the cover 9 and the body member 8 should be sized and positioned, for ease of turning movement with minimum resistance. In U.S.S.N. 08 / 928,684, it was discussed that in some axial systems it may be desirable to use a filter element with an appropriate length and with smooth axial projections to cause some degree of compression against the cover 9, in an axial direction, to inhibit "noise" between the cover 9 and the body member 8. In general, it has been found that such compression by the filter element can lead to undesirable amounts of resistance to facilitate the alignment of, and rotation of, the cover 9 relative to the member of the filter. body 8, in movement of the arrangement between the closed and open positions. In this way, the filter element is dimensioned, so that a substantial amount of compression does not occur when the cover 9 is placed above the body member 8. Preferably, the filter element is dimensioned relative to the housing, so that there is a line-to-line alignment between the filter element and the cover 9; or, so that the dimensions are such that the filter element is simply shorter in length, than the distance between the opposite inner end surfaces of the cover 9 and the body member 8.

With respect to noise minimization, in general, it has been found that when the appropriate tolerances for the dimensions and the relative portions of the cover 9 and the body member 8, the preferred material such as polypropylene plastics, or Some cases reinforced polypropylene, or alternatively, nylon, can be molded to tolerances, such that undesirable levels of noise do not arise. The lack of noise is also facilitated by the finger lock or coupling mechanism, when used.

In some cases it is also possible to reduce the amount of resistance to rotation, using closure systems "on the center" less than all leg or grapple interactions. In this way, the amount of torque required to cause rotation can be reduced. In general, when the reduction in closure over the center occurs, the undesirable rotation of the cover 9 from the body member 8, during the operation of the air cleaner, can be minimized by also using a closing mechanism such as the coupling lock. of the finger In the alternative, if the coupling closure of the finger is not desired, greater amounts of frictional resistance between the legs and the handles can be designed in the system.

With respect to the issues of frictional resistance to rotation, it is observed that with relatively greater amounts of frictional resistance, it may be difficult to manually rotate arrays of larger diameters. In this way, it will be preferable for larger arrays to have, relatively noise and on average with respect to each grip / leg interaction, lower amounts of frictional resistance to rotation, with the concomitant use of a mechanism such as the finger lock coupling described above, to inhibit undesirable posterior rotation or opening. Otherwise, with arrangements of smaller diameters, for example, in the order of approximately 4 inches or 5 inches in diameter, even if each of the leg or grab arrangement involves one or more sites on the central frictional coupling (or resistance). ), a person can typically easily rotate the cover, with the strength of an arm or hand, to open or close the arrangement, especially if the dimensions for the leg or grip arrangement such as those previously used described herein. In fact, for such small-sized housings, especially about 5 inches in diameter or smaller, it might be preferred in some cases not to use the finger-closing mechanism because a sufficient amount of frictional resistance for rotation can be elaborated in the system for significantly reduce the incidence of undesirable opening during use, still having the system that provides the level of frictional resistance that can easily overcome the strength of a human operator, with an arm or hand.

As it is apparent from the review of U.S.S.N. 08 / 928,684, there is, in general, no requirement that each leg has an associated handle, or each handle has an associated leg. By varying the relative numbers of two, reductions in the amount of frictional resistance to rotation can be made. This is because each interaction between a leg and grip (which also uses an interaction of frictional resistance or on the center) adds to the overall rotation resistance and thus the force required to cause the cover to move between an orientation of closing and opening. Without changing the nature of the interaction between each leg or handle, but instead changing the number of legs or the number of handles, the total or total sum of the frictional interaction, and thus the resistance to rotation, it can be adjusted and controlled easily.

The focus is now on the FIGS. 10 and 11, and the projected and / or spaced surfaces that appear on the handle 98. The spaced surface 450, described in U.S.S.N. 08 / 928,684, is on the main surface or forward, i.e. the main surface as the leg 97 moves towards the handle 98, during closure. The spaced surface 450 in general extends at an oblique angle relative to the direction of rotation. That is, the surface does not extend perpendicularly to the direction of rotation, it is not parallel with it. Preferably, the spaced surface 450 extends at an angle of about 20 to 40 °, relative to the longitudinal axis of movement of the closing finger 160, or alternatively, at an angle of about 110 ° to 130 ° relative to the direction of rotation during closing or opening. Such a space on the surface 450 allows the surface 451 on the finger 162 to move easily at a position between the adjacent handles 98, as the finger 162 moves in the closure arrangement, FIG. 11. (It is noted with respect to this, that in Fig. 11, only one handle 98 is shown, and thus an alignment of the surface 451 with the next handle (to the left) is not specifically shown. , can be easily understood by comparison of FIGS 10 and 11.

Attention is now focused (in FIGS. 10 and 11) to the forwardly projecting surface 453 on the handle 98, and the projected surface 454 on the leg 290. It was described generally in U.S.S.N. 08 / 928,684 some arrangement between these surfaces, during closure with one elevation and sliding along the other, to help properly orient the cover 9 and the body member 8 relative to one another during closure. In addition, a preferred oblique angle of approximately 16 degrees for the projected surface 453 and approximately 22 degrees for the projected surface 454 were described (with respect to the direction of rotation during closure or opening). Relative to the longitudinal axis of the closing finger 160, these angles are 106 ° and 112 °, respectively. More generally, the oblique angles (ie angles that are not zero and not 90 degrees) with respect to the direction of rotation of the cover 9 relative to the member of the body 8 during closure and opening, in the order of 10 ° to 40 °, and typically 20 ° to 25 ° (relative to the direction of rotation during closure or opening, relative to the longitudinal axis of the closing finger 160, these angles are of the order of 100 ° -105 °), will be preferred for each of the surfaces 453, 454. This is apparent from the review of the type of interaction shown in the USSN drawings 08 / 928,684.

The attention is now directed to the rear surface 460 on the handle 98 of FIGS. 10 and 11. The spaced rear surface 460 is inclined at an oblique angle of about 17 ° to 25 °, relative to the longitudinal axis of the housing or the axis of movement of the finger 160, and the space in a direction of the surface 450 ( in extension of the surface toward the finger 160), FIG. 10. Regarding the direction of rotation during closing or opening, the angle is approximately 65-73 °. This inclination or space helps to avoid a mechanical adjustment as the finger begins to slide in a closed position, if the complete rotational closure has not been presented. In general, it can help the rotation 461 of the finger 160 to slide before the handle 98, yet to remain a tight closing fit.

Other observations with respect to the description of U.S.S.N. 08 / 928,684 include the following example specifications: The filter element 55 has an outer diameter of approximately 60-280 mm, and an inner diameter of approximately 40-160 mm. Element 55 has an overall length of about 160-640 mm. The body member 8 has a length of about 130-540 mm. It has an outer diameter in the portion 71 of approximately 100-420 mm, and an internal diameter in the portion 71 of approximately 105-410 mm. Each of the tabs 13 in the body member 8 has a width of about 3-12 mm. Each of the rings 14 is spaced approximately 5-20 mm from an adjacent ring. Each of the rings 14 has an outer diameter of approximately 100-300 mm, and a width of approximately 0.5-5 mm. The slot 78 extends a distance of about 3-18 mm from the section of the side wall 65 in the body member 8, and approximately 15-60 mm from the base of the body member 8 and adjacent to the portion 71. Deviator groove 67 has a length of approximately 60-250 mm, and an outer diameter of approximately 80-340 mm. The distance between the inner wall of the body member 8 and the slot 67 is approximately 8-35 mm. The inlet 5 has an outer diameter of approximately 45-200 mm. The outlet 6 has an outer diameter of approximately 40-180 mm, an inner diameter of approximately 40-180 mm, and a length of approximately 55-230 mm. The cover 9 has a length of approximately 65-250 mm. On the surface 76, the cover 9 has an internal diameter of approximately 105-420 mm, and an outer diameter of approximately 110-440 mm. The outlet tube 46 has an outer diameter of about 25-120 mm, and an inner diameter of about 25-100 mm.

With reference to FIGS. 5-7 and 13, section 12 has a length 300 of about 5-20 mm, and a width of about 0.5-4 mm. The section 129 has a length 301 to the end tip 131 of approximately 10-40 mm and a length 302 to the elevation end 135 of approximately 5-25 mm. Section 129 has a width of approximately 1-6 mm. The projected surface 127 has a length between the elevation 135 and the tip 131 of approximately 4-18 mm.

The tip 131 is about a radius of about 0.4-1.8 mm. The elevation 135 is in a radius of approximately 0.5-2 mm. It has a height 304 from an edge of section 129 of about 1-7 mm. The half of the indentation 114 is at a distance 305 from the section 128 of approximately 3-14 m. It is in a radius of approximately 5-20 mm. The ferrules or legs 97 have a distance 307 of about 4-16 mm from the elevation 135 to the groove 79. It has a distance 308 of about 4-16 mm between the section 129 and the groove 79. It has a distance 309 of about 4 -16 mm between section 129 and elevation 114.

With reference now to FIGS. 5-7 and 14, each projection 109 has a length 320 of about 1-7 mm and a width 321 of about 1-4 mm. Each of the projections 110 has a length 320 of about 1-7 mm, and a width 322 of about 1-4 mm. The slot 122 has a length 320 of about 1-7 mm, and a width 323 of about 2-9 mm. The rear surface 120 has a length 324 of about 0.5-4 mm. The surface between the rear surface 120 and the curved surface 116 has a distance 325 of about 2-10 mm. The rear surface 136 has a length 329 of about 2-8 mm. The distance 330 between the tip 125 and the projected surface 126 is approximately 1-5 m. The surface between the back surface 136 and the projection 110 has a distance 332 of about 2-9 mm. The finger 151 has a length from the manual portion 155 to one end of the extension 162 of approximately 60-260 mm. It has a width of the portion of the transverse leg 156 of approximately 10-60 mm. The flange 164 has a length of about 10-40 mm, and its widest portion passes through a width of about 2-10 mm. The protrusion 165 is about a radius of about 0.5-4 mm, and projects approximately 0.5-4 mm from the flange 164. The extension 162 extends a distance of about 1-10 mm beyond the guide edge 152, when the finger 151 is in the closed position.

III. IMPROVEMENTS IN CERTAIN MODALITIES OF U.S.S.N 08/928, 684 The focus is now on the FIGS. 10 and 11. From a review of FIGS. 10 and 11, it can be understood that if the leg 97 does not rotate completely against the handle 98, the finger 160 can not be moved completely in the closed position. Instead, as the finger 160 moves toward the closed position, it may "hang" or adjust, supporting the handle 98, with an inability to move forward in the closed position, i.e. to the base in Figure 11 unless the rotation occurs. In this way, if the array operator is using the forward (and stop) movement of the finger 160 as an indication of the complete rotational closure of the rotationally operated closing system, the system may appear closed to the user, when such "adjustment " Presents itself. (It is noted that the oblique angled surfaces, described above, are oriented to inhibit this).

As a way to further minimize the risk of this perception, the finger 160 could be released long enough, and movement be adjusted, so that during the closing operation of the finger, when the rotational system operated by rotation closes, a greater movement or greater amount of (relatively) movement of the handle on the finger 160 is involved. In this way, the user to detect that the adjustment would occur because the relatively small movement of the finger 160 would occur. However, for the specific arrangement shown in FIGS. 10 and 11, the length of movement of the finger 160, substantially can not be lengthened, due to a joint that would occur between the portion 465 of the finger 160 and the portion 454 of the leg 97, FIG. 11. A modification to accomplish this is illustrated in connection with FIGS. 29 and 30.

Figures 29 and 30 are generally analogous to FIGS. 10 and 11, except for the representation of an elongated finger and the modifications to accommodate the longer finger. Note that a portion of the leg 97 'that engages the handle 98' in the vicinity of the finger 160Y has been removed in relation to FIGS. 10 and 11. In this manner, the section 468 of the finger 160 can extend well beyond the possible location for the specific arrangement of Figures 10 and 11. This means that the total sum of the longitudinal movement of the finger handle 160 ' it can be greater than a longitudinal distance, and the user will be less likely to believe that the finger closes when a mechanical adjustment is made against the handle 98.

It is noted that the arrangement of FIGS. 29 and 30 will be as good as in the closing as the arrangement of FIGS. 10 and 11, since in a closed orientation, FIG. 30, the finger 160 'does not prevent the cover from rotating, so the leg 97' rotationally moves away from the handle 98 '.

Note that elongation of the finger 160 ', FIGS. 19 and 30, could be done through the arrangement of FIGS. 10 and 11 of U.S.S.N. 08 / 928,684, without modification to the arrangement apart from: the arrangement with a longer finger 160 '; and the modification of the shape of a leg, i.e. the located leg where the coupling with the finger 160 'is presented. The remaining leg on the cover 9 could be the same as shown in FIGS. 5-7 of U.S.S.N. 08 / 928,684. In addition, the design of the body member 8 and the handles 98 therein did not need to be modified to accommodate this improved form of elongate closure finger 160 '.

It is noted that for the arrangement of FIGS. 29 and 30, as a result of leg modification 97 ', there is at least one leg in the leg and grapple closure arrangement that lacks at least its two possible sites for closure over the center. This results from the fact that leg 97 'has been truncated and does not include region 290, FIG. 10, which allows some frictional resistance (or interference) to the rotation. In general, in typical arrangements this will be a significant loss of resistance for the opening rotation. First, the coupling finger 160 'operates to block rotation, unless and until rotation is desired. Also, the frictional resistance between other parts of the leg and grip in the overall rotational closure system can be made to provide variations in the amount of the closing resistance on the center as desired.

IV. SELECTED ADDITIONAL AMOUNTS In Figures 17-33, improved arrangements that use certain general principles of U.S.S.N. 08/928, 68 The reference number 500 FIGS 17 and 19 in general represents an air cleaner assembly according to the improvements as described in this section. The air cleaner assembly 500 is not shown in the assembled configuration, with a cover 503 mounted on the body member 504, since, if represented in this manner, the array 500 would appear very similar to the arrangement of FIG. 12 (or if the closing finger and the slide mount, arrangement 1 of FIG 1) are not used. Also, the main filter element and the security element in connection with the FIGS are not shown. 17-33. However, the parts analogous to parts 55 and 56, FIG. 4. In FIG. 17, a lateral elevational view of the body member 504 is depicted. In FIG. 19, a side elevational view of the cover 503 is depicted. The improvements described herein, in general, refer to the turn lock mechanism, and thus are not easily observable in the air cleaner 500 when mounted. Instead, the features are generally hidden from view when the air cleaner 500 is mounted, and are visible when the parts comprising the cover 503 and the body member 504 are separated and inspected separately.

The attention first focuses on the member of the body 504, FIG. 17. Comparing body member 504 to body member 8, FIGS. ÍA and 4-7, several differences should be easily apparent. First, while the body member 504 includes a plurality of handles 510, the handles 510 differ from the handles 98, FIGS. 4-7 at least with respect to specific external configurations or shapes and overall relative size. Specifically, the handles 510 are larger in area (relative to the rest of the housing and also absolute in the preferred embodiments) than the handles 98 and the handles 510 are formed differently than the handles 98. By "greater in area" in this context , reference is made to the area of the perimeter defined by the outer perimeter of the handle when viewed in top plan view. In general, when applied to a housing of approximately the same overall size and dimensions, the handles 510, in general, if constructed as described below, each define an upper perimeter area than each of the handles 98. Preferably , the perimeter area of each of the lugs 510 is at least 60 mm2, preferably at least 130 mm2, preferably between 250-2500 mm2, and typically more than 350 mm2, for example approximately 500 mm2. The reference with respect to a "different form" in this context, means that it refers to the shape of the outer perimeter defined by the handles 510 and 98.

Additional differences relate to the following: preferred lugs 510 are formed of two segments, i.e. segment 511 and segment 512, FIG. 18; and, the segments 511 and 512 are oriented together as the segments of the perimeters, cooperating together to enclose or define an "orifice" or central space 514, FIG. 18. By comparison, the handles 98 are simple pieces and there is no perimeter that completely encloses a central hole. The area of the hollow space 514 is at least 50 mm2, preferably approximately 100-800 mm2 and typically more than 150 mm2, for example approximately 200 mm2.

In addition, in part to accommodate the relatively large handle 510 of FIGS. 17 and 18, the relative length of the portion 518 (and the absolute length for the preferred embodiments), generally referred to as the cover engaging surface, between the radial slot 519 and the end 520 is greater for the preferred embodiment of FIGS. 17-28, which for the arrangements of FIGS. 1-16 In FIG. 17A, a cross-sectional view of FIG. 17. Note that end 520 includes the section of flange 521, assembly 522 and edge 523. For the preferred construction, FIGS. 17 and 17A, edge 523 is circular, defining a central axis 524. For the arrangement of FIG. 17A, the section of the flange 521 extends over a distance of at least 5 mm and typically from 8 to 20 mm. In this way, it can be projected relatively deeply into a corresponding slot in the cover 503, FIG. 20, to provide a good seal to the climate between the two members 504, 503. That is, the slot 547 in FIG. 20, it could be relatively deep, at least 25 mm, preferably 40 to 70 mm in depth from the largest section to the edge 543. This, in general, is a seal of the groove deeper than that represented for the FIGS arrangements. . 1-16 The edge 523 of the body member 504 is preferably projected at least 3 mm and preferably from 6-10 mm into the slot 547, when the cover 503 is mounted on the body member 504. Preferably the section of the flange 521 is also 1.0 to 3.0 mm thick. In the preferred embodiments, each handle 510 is spaced at least 10 mm, preferably 15-30 mm, and more preferably 23 mm from the edge 523.

The specific detail that relates to the construction of the handles 510, and preferred structural features, are shown in FIG. 18, and discussed here after a presentation and general description of the cover 503 is made.

The cover 503 is shown in FIGS. 19 and 19A. In FIG. 20, a cross-sectional view taken along the line 20-20, FIG. 19A.

Referring to FIG. 19, in general, an exterior view of the cover 503 is similar and, in some cases, may be clearly identical to the cover 9, FIGS. 1, 2 and 4. One difference is that in the region 530, the cover 503 could have a larger relative extent (than the cover in FIGS 1, 2 and 4) to cover the larger pots 510 preferably used in the corresponding body member 504. Typically, a length of extension of the flange or cover 530, between points 530A and 530B; in the order of at least about 10 mm, and typically 15 to 30 millimeters will be preferred for arrangements according to FIGS. 17-28.

As can be seen from Figure 19A, in general the cover 503 is provided with a mounting groove or slide mount 533, to receive here a closing finger, not shown in FIGS. 19 and 19A, during use. The preferred closing finger can generally be described later in connection with FIGS. 25 and 26, with the operation analogous to the closing finger 160, FIGS. 10 and 11. It is noted that for the preferred embodiment representing the dimensions and specific shapes of the mounting finger portions, it will be modified from the arrangement of FIGS. 10 and 11, to accommodate the dimensions and shapes of the preferred lugs 510. This is demonstrated in the mounting fingers shown in FIGS. 25 and 26, as discussed later.

Now changing to FIG. 20, the cover 503 is shown in cross section. The differences between the cover 503, and the arrangement of the cover 9 of FIG. 2, can be easily observed. First, it is noted that the legs 537, FIG. 20, are configured differently from the legs 97, FIG. 2. For example, legs 537 do not have a right angle L shape. Instead, the legs 537 each have a portion with more than one shape of banana, curved, elongated. This is indicated in detail in connection with FIG. 21, discussed later in detail.

In addition, the legs 537 each comprise two segments or portions. A front portion 540 having the banana-like shape and which is the portion most directly coupled by the lugs 510, as discussed below, during closure; and a rear portion 541 comprising a relatively linear segment positioned preferably immediately adjacent the edge 543.

The cover 503 does not include the segment of the side wall 545 defining in association with the flange or ring 546, the circular groove 547. The groove 547 is positioned as the receiving groove or seal groove to receive the edge portion 523, FIG. 17A, when the cover 503 is placed on the body member 504. The end 549 of the flange 546 can be used to operate as a stop, due to alignment with the pedestal or assembly 522, FIG. 17A. While this operation is analogous to that of the arrangement of FIG. 2, the region of the cover 9, FIG. 2, which is analogous to region 545, FIG. 20, extends over a shorter relative length, compared to the preferred embodiment shown in FIG. twenty Note that for the arrangement of FIG. 20, the cover 503 is provided with an outer pedestal 551, wherein the segment 545 joins the remainder 533 of the outer wall 556, with the cover member 503. This pedestal allows the ring 546 to be easily molded integrally with the rest of the segment of the wall 556, for ease of molding or force. A similar construction was used for the cover 9, FIG. 2.

In FIG. 18, one of the handles 510 is shown in an enlarged view. The handle 510 comprises the segments 511 and 512. In general, together the segments 511 and 512 define a handle 510 having for the preferred embodiment shown, an outer circumferential shape quite similar to the letter "p", with an extremity dependent on the "p" indicated at 555 and oriented point directly into slot 519, FIG. 17. Here, when the handle is characterized as having a "p-shaped" configuration, the reference means either to the general form of the letter p, with an oval perimeter or similar shape and a dependent limb.; or, to his image in the mirror. That is, the image in the mirror of the letter "p" would still be considered "p-shaped" within the meaning of the term used here.

A more general characterization of the handle 510, FIG. 18, is that the preferred lugs 510, as shown, each have a region defining and circumscribing a central hole 514 and a projection finger or limb 555 from such a hole. The preferred specific construction, of course, is with the "p" configuration shown, or its image in the mirror. It is to be noted, however, that variations of the configuration of the specific perimeter shown, could be used, as will be apparent from the subsequent additional descriptions.

With reference still to FIG. 18, the segment 511 generally comprises a projection having the first and second spaced side edges 560 and 561, joined by the end edges 562 and 563. The side edges 560 and 561 are generally linear and are stretched in extension, with the direction of the extension in general which is parallel to: terminal edge 523, FIG. 17; or, alternatively established, parallel to a direction of rotation of the cover 503 when the mounting of the body member 504 is rotated between the closing and open orientations. As an alternative definition, the direction of extension of the side edges 560 and 561 could be established to be generally perpendicular to a central axis 524 of the body member 504, FIG. 17 and 17A.

The end edges 562 and 563, on the other hand, generally each extends at an oblique angle relative to: the central axis of the body member 524, FIGS. 17 and 17A; and, the direction of extension of sidewalls 560 and 561. Preferred angles for extension of end walls 562 and 563 are provided hereinafter. Preferably, the perimeter configuration of the 511 segment is such that the edge 561, which is positioned closer to the end 523 than the edge 560, is at least 95% of the edge length 560, typically at least 90% of the length 560; and, the edges 560 and 561 are positioned so that the edge 561"centers" with respect to the edge 560, i.e. the approximate center of each one is positioned in a line that extends perpendicular to each one. This means that the terminal edges 562 and 563, for the preferred embodiments, not only extend obliquely, but in general as the mirror images of one with respect to the other.

In general, the preferred segment 511, FIG. 18, can be seen comprising a member in general in "D-shape" having continuous sides defined by sections 560, 561, 562 and 563; and, with the continuous sides defining the perimeter wall around a central projection 565. Preferred dimensions for the height and thickness of this projection are provided below.

Segment 512 includes two general sections. A "c-shaped" section 570; and the extremity 555. The "c-shaped" section defines the ends 567 and 568. In general, the space between the ends 567 and 568 are positioned such that the lateral edge 560 of the segment 511 extends between them. Preferably the wall 560 is minimally supported or spaced from the c-shaped section 570 at points 572 and 573. As a result some flexibility of the handle portions 510 is provided.

The segment 512 is also preferably molded as a projection, defining the outer wall or edge 576 and the inner wall 577. Certain parts of the overall exterior configuration of the outer edge 576, and the various surfaces and the relative angles of the surfaces, refer to the operation of the handle 510, during the closing coupling. In particular, four portions of segment 512 can potentially engage in engagement with leg 537 during use. These are positions 580, 581, 583 and 583. The operation in these portions, during the closing of the leg and handle closure assembly, will be apparent from the revision of FIGS. 22-24.

Specifically, the portion 580 can operate as a forward projection or projected surface, which during the rotation closure, can first engage a portion of an associated leg and the sliding portion of the leg, to properly orient the leg or the handle ( and in this way the cover and the body member) in relation to one another, during closure. Preferably, the portion 580 extends at an oblique angle, relative to the direction of rotation, in the order of 40 to 60 °, and preferably approximately 49 °. Alternatively set, preferably the portion 580 extends at an oblique angle relative to the axis 524, FIG. 17A, in the order of about 30 to 50 °, typically about 41 °. The degree to which the portion 580 will engage the portion of an associated leg, of course, will depend on how well the operator aligns the cover and the body member before rotation. The smaller the parts are aligned, the more coupling will occur, with the coupling that tends to align the parts.

The portion 581, on the other hand, operates as a resistance lift "over the center", in a manner analogous to the projection 135, FIG. 5. The resistance elevation 581 will be placed, during closure, beyond a portion of the leg engaging during closure, see FIGS. 22-24, and operates as a closure on the center to resist reverse rotation until overcome by the appropriate rotating force.

The portion 582 generally defines a space in which a portion of a leg engaging during closure engages, see FIGS. 22-24. Preferably, the portion 582 extends generally parallel to the slot 519 or the direction of rotation during closing; or, alternatively defined, preferably the portion 582 which extends generally perpendicularly to the central axis 524.

Finally, the portion 583 operates as a back support surface during closure, with the closure rotation only possible until a portion of the associated leg is rotated in the support with the surface 583. As apparent from FIGS. 22-24, in relation to the dimension of the portions 582 and 583, as well as the relative dimensions of an associated portion of the leg to be coupled, are chosen, so that during engagement a portion of the leg engages within the space 582, closed of the additional rotation by the surface 583 and with the resistance to the opening provided by the elevation or resistance flange 581. The preferred dimensions, for example, are provided later, in connection with the discussion of FIGS. 27 and 28.

Three typical portions of the outer edge 576 are generally oriented to facilitate the operation of an appropriate closing finger, see FIGS. 25 and 26. These are portions 588, 589 and 590.

The portion 588 comprises a forwardly spaced surface, analogous to the surface 450, FIG. 10. The portion 588 generally extends at an oblique angle, typically an angle of 10 to 30 °, relative to the central axis 524, FIG. 17A, and spaced from the outermost point and further forward 593, to a point more spaced at 594, extending to segment 511. Alternatively defined, the surface or portion 588 extends at an oblique angle, typically approximately 100 ° to 120 °, relative to slot 519 or the direction of rotation during closing.

The space provided by the extension of the portion 588 accommodates a portion of a closing finger when the handle 510 is positioned with a closing finger immediately adjacent the tip 593. The accommodating closure finger portion is the extension 591, FIG. 25. Preferably, each handle 510 is provided with the spaced portion 588 because the cover 503 is generally constructed to be placed at a variety of selected rotations, relative to the body member 504.

The portion 589, FIG. 18, is a rear spaced surface, generally analogous to surface 460, FIG. 10. The spaced portion 589 preferably extends at an oblique angle within the range of 10 ° to 30 °, relative to the axis 524, FIG. 17A; or, alternatively established, at an oblique angle of about 60 ° to 80 ° relative to the slot 514 or the direction of rotation during closure. The spaced extension of portion 589 is generally between points 598 and 599, with point 598 having the most backward point of the point of portion 589, ie, with the direction of space toward portion 588 in an extension direction. to segment 511, from point 598. The rear space provided by portion 589 accommodates the movement of finger 600, FIGS. 25 and 26 during closure, with the inhibition of adjustment. In this way, portion 589 operates similarly to portion 460, FIGS. 10 and 11.

Finally, the portion 590 extends generally to the slot 519 from the point 598, with the direction of the extension generally parallel to the central axis 524, FIG. 17A; or, alternatively defined, generally perpendicular to the slot 519 or the direction of rotation during closure. The portion 590, in general, provides a support surface for a portion of the closure finger, as indicated in detail in FIGS. 25 and 26.

In general, the inner edge 577 extends between points 599 and 594, which define the region 578 with respect to the outer wall 576; and which also define the inner region 514, which comprises a spaced or internal hole between the sections 511 and 512.

It is noted that the configuration for sections 511 and 512 is such that the non-elongated portion of any part has the thickness, between opposite sides, greater than about 2.5 mm. This means that the sections of the wall can flex enough, in the direction of the axis 524, under stresses during the operation of the closing and opening activity on the center. Preferably, when the chosen material is polypropylene plastic (in certain cases, reinforced), thickness in the order of about 4 mm or less will be preferred, typically 2 to 3 mm. The dimension of the thickness referred to in this paragraph, again, is the thickness between the opposite sides, not the thickness of the projection outwardly from the rest of the air cleaner body, generally characterized later.

The attention is now focused on FIG. 21, in which leg 537 is depicted. As previously indicated, leg 537 includes a front portion 540 and a portion 541.

The front portion 540 has a shape similar to the banana comprising the segments 606 and 607. The segment 606 extends generally parallel to the slot 519 and the direction of the closing rotation, or, alternatively established, generally perpendicular to the central axis 524, FIG. 17A. The segment 606 is a projection defined by: the opposite outer sides 609 and 610, and the end or tip 611. The end 611 is generally round and operates as a support surface against which the internal projection 581 is directed, during the closing. In general, the edge 609 comprises an external wall against which the portion 582 of an associated handle 510 is directed or adjusted during engagement, see FIGS. 22-24.

Segment 607 is generally directed at an oblique angle, relative to segment 606, typically centered on a line extending at an angle of about 65 ° to 85 °, typically about 74 °, relative to slot 519, and / or a direction of rotation during closing. Segment 607 is defined by edges 614 and 615, and tip 616. Tip 616 is generally round and oriented to support portion 583 of an associated handle, during closure, see FIGS. 22-24. The edge 614 is generally directed as a projected surface or spaced surface, which can operate quite analogously to the surface 454, FIG. 10, during closing. That is, the wall 614 defines a spaced surface against which the portion 580 of an associated handle 510 can be directed, during a closing rotation to properly orient the cover 509 and the body member 504 for closing rotation. During closure, if the cover 505 and the body member 504 are not properly aligned, the portion 580 will generally slide along the wall 614, to obtain alignment and final closure, see FIGS. 22-24.

Preferably, the section 540 is approximately 1 to 3 mm thick in dimension between the walls 609 and 610, or the walls 614 and 615, so that while projecting outward from a remainder of the cover 503, it is sufficiently thin to be quite flexible during the closing operation and, strong enough to withstand the forces without risk or substantial breakage, etc.

Segment 541 generally comprises an extension 620 positioned along edge 543, FIG. 20 and extending over a radial distance approximately the same as the segment 540. The extension 620 is preferably approximately 1-2 mm thick in dimension between the sides 621 and 622, with the rounded tips 623 and 624. In operation, the extension 620, in general projects segment 540 of the damage.

The focus is now on the FIGS. 22-24. In FIGS. 22-24, the rotational operation is illustrated during closure.

In particular, FIG. 22, the handle 510 and the leg assembly 537 are shown separately, while rotating together in a locking arrangement. The arrangements in FIG. 22 would be an open arrangement for the leg and grab mechanism.

In FIG. 23, the leg 510 and the handle 537 are shown partially engaged, with the coupling occurring between the projected surface 614 on the leg 537; and the lifting portions 581 and the polar projected surface 580 on the handle 510.

In FIG. 24, the complete closure is shown with the coupling between the tip 611 and the elevation 581, as well as between the tip 616 and the spaced surface 583.

The focus is now on the FIGS. 25 and 26. In FIGS. 25 and 26, the operation of the handles 510 and the legs 537 are illustrated, in association with the closing finger 60. In particular, FIG. 25 shows the arrangement on the closing finger 600 and the closed orientation, which has the extension finger 601 extending behind a portion of the handle 510. Observe the alignment between the inclination and the surface 602 and the finger 600, and the rear projected surface 589 of the handle 510. The closure finger, in all features except the specific shape and size of the region that engages the handle 510 during closure, could be similar to the arrangement described above in connection with 610 and 611 .

In FIG. 26, the assembly is shown with finger 600 removed from an open orientation, thereby releasing the rotational movement assembly of handle 510 relative to legs 537.

Attention now focuses on the alternate modality of FIGS. 31-33. FIGS. 31-33 represent a modality analogous to the arrangement shown in FIGS. 5-7, but modified to accommodate certain desired characteristics. In particular to the arrangement shown in FIGS. 31-33, the region indicated as 700 is shorter than the region indicated as 109, FIGS. 5-7, preferably shortened at a distance so as to clarify, instead of coldly contacting the elevation 701. As a result, the amount of frictional resistance to the rotation of the arrangement in FIGS. 31-33.

Also, the arrangement in FIGS. 31-33 is provided with an extension dimension of region 705 shorter than region 125, FIGS. 5-7, allowing less resistance between 705 and region 706, during closure over the center. This would result in less frictional resistance to the rotational movement of the two parts.

The modifications reflected in FIGS. 31-33 could be preferred for some embodiments, in which it is desirable to provide less rotational resistance and thus easier rotation. With such arrangements, the risk of non-predestined rotational movement during operation will be inhibited through the use of a closure arrangement using the closing finger as generally described herein.

The purpose in the illustration of FIGS. 31-33 is simply to indicate how with a minor modification the arrangement shown in FIGS. 5-7, the availability of rotational movement in a cover relative to the body member can be easily facilitated. The adjustments made in the arrangement of FIGS. 31-33 could be applied to all lugs of a leg gripper mechanism, or to selected lugs, to achieve a desired level in frictional resistance to rotation.

V. PREFERRED DIMENSIONS FOR SELECTED ADDITIONAL MODALITIES In this section, an example of a group of materials and operation specifications is provided. These specifications are only. an example group. A wide variety of alternative materials and sizes can be used. As the 510 clips and leg 537 interact, the specifications provided herein will be operable through a large number of air cleaning sizes and sizes and may only need to be adjusted for much smaller or much larger air cleaners.

The arrangement described would be particularly configured for use in a system with the following characteristics: a typical air flow velocity of approximately 100-220 CFM (approximately 2.8-6.2 cubic meters per minute); and typical pressure drop of approximately 4-8 inches of water (approximately 100-205 mm of water).

The body member 504 has a length of about 100-400 mm, for example, more than 200 mm, and preferably about 270-290 mm. The cover 503 has a length of about 60-200 mm, for example, more than 100 mm, preferably about 130-150 mm.

There are approximately 12-20, preferably 16, potholders 510. Referring now to FIG. 27, in the following table, there are reference numbers shown in the drawings. The reference numbers correspond to the dimensions shown in FIG. 27 for an example 510 handles. After the reference numbers, there are typical or preferred dimensions for the section corresponding to the dimensions shown in Fig. 27 Reference Number Dimensions 609 No greater than approximately 36 mm; at least about 8 mm; p r e f e n t e m e n t e approximately 12-25 mm; and more preferably about 18 mm. 610 No greater than approximately 35 mm; at least about 7 mm; p e r e n t e m e n t e approximately 10-23 mm; and more preferably about 17 mm. 611 No greater than approximately 10 mm; at least about 1 mm; p e r e n t e m e n t e approximately 3-7 mm; and more preferably about 5 mm.

Each of the lugs 510 projects at least about 2 mm, preferably about 3-8 mm, and more preferably about 6 mm from the outer surface of the cover 504. The lugs 510 are molded with a suction angle not greater than 1 ° on each side, to help with de-molding.

In the following table, there are reference numbers shown in the drawings. The reference numbers correspond to the dimensions shown in Fig. 28 for an example leg 537. After the reference numbers, there are the typical or preferred dimensions for the section corresponding to the dimensions shown in Fig. 28.

Each of the legs 537 projects at least about 2 mm, preferably about 3-8 mm, and more preferably about 6 mm from the outer surface of the body member 503. The legs 537 are molded with a suction angle no greater than 1 ° on each side, to help with de-molding.

The accommodations of FIGS. 17 and 19 can be assembled using a mounting band similar to that described above and described in connection with FIGS. 15 and 16, or with the variations thereof.

It is noted that in relation to this date, the best method known by the applicant to carry out the aforementioned invention, is the conventional one for the manufacture of the objects to which it relates.

Having described the invention as above, the content of the following is claimed as property.

Claims (60)

1. CLAIMS 1. In an air cleaner assembly comprising a body member, a removable cover, and a lock assembly activated by rotation; the rotation-activated closure assembly has a primary, open orientation and a closed second orientation; the air cleaner, characterized in that: (a) the body member includes a generally cylindrical surface engaging surface; (b) the lining generally includes a mating surface of the body member, generally cylindrical; le) the liner is removable from the body member when the closure assembly is in the first, open orientation; (d) the liner is secured to the member when the closure assembly is in closed orientation; (e) the rotation activated closure assembly includes a plurality of handles and at least one leg; (i) at least two of the handles have an angled forward facing surface within the range from 10 ° -60 °, relative to a direction of rotation during closure; Yi) at least two of the lugs projecting from a body member and the lining; At least two of the projecting handles are separated from an adjacent projection handle by a non-projecting region, at least one leg has a projected coupling surface, (f) the coating is selectively rotatably slidable, in relation to the cylindrical engagement surface of the body member between the closed and open orientations.
2. 2. In an air cleaner assembly comprising a body member, a removable cover, and a lock assembly activated by rotation; the rotation-activated closure assembly has a primary, open orientation and a closed second orientation; the air cleaner, characterized in that: (a) the body member includes a generally cylindrical surface engaging surface; (b) the lining generally includes a mating surface of the body member, generally cylindrical; (c) the liner is removable from the body member when the closure assembly is in the first, open orientation; (d) the liner is secured to the member when the closure assembly is in closed orientation; (e) the rotation activated closure assembly includes a plurality of handles in * P shape; Y (f) the coating is selectively rotatably slidable, relative to the cylindrical engagement surface of the body member between the closed and open orientations.
3. 3. In an air cleaner assembly comprising a body member, a removable cover, and a lock assembly activated by rotation; the rotation-activated closure assembly has a primary, open orientation and a closed second orientation; the air cleaner, characterized in that: (a) the coating includes a slide mount on it; the sliding mount defines a mounting groove of the coupling finger; (b) the rotationally activated closure assembly is constructed and arranged to move selectively between the open orientation and the closed orientation by means of a rotational movement of the liner relative to the body member; and (c) a coupling finger is slidably mounted in the mounting groove of the sliding assembly; the coupling finger selectively slides between the engaged position and a released position, when the rotationally activated closure assembly is in the closed second orientation; (i) the engaging finger, when selectively slid in a direction toward the body member in the engaged position, is positioned to block the rotation of the liner relative to the body member, from the closed orientation to the open orientation; and (ii) the coupling finger, when selectively sliding in a direction away from the body member in the released position, is positioned to allow rotation of the liner, relative to the body member, between the closed orientation and the open orientation. . Four . In an air cleaner assembly comprising a body member, a removable cover, and a lock assembly activated by rotation; the rotation-activated closure assembly has a primary, open orientation and a closed second orientation; the air cleaner, characterized in that: (a) the body member includes a generally cylindrical surface engaging surface; (b) the lining generally includes a mating surface of the body member, generally cylindrical; (c) the liner is removable from the body member when the closure assembly is in the first, open orientation; (d) the liner is secured to the member when the closure assembly is in closed orientation; (e) the rotation activated closure assembly includes a plurality of handles; (i) each of the lugs has a first projection and a second projection recessed therefrom; (A) The first and second projections define a slot between them; (f) the coating is selectively rotatably slidable, relative to the cylindrical engagement surface of the body member between the closed and open orientations. 5. In an air cleaner assembly comprising a body member, a removable cover, and a lock assembly activated by rotation; the rotation activated locking assembly has a primary, open orientation and a second closed orientation; the air cleaner, characterized in that: (a) the rotationally activated closure assembly is constructed and arranged to move selectively between the open orientation and the closed orientation by means of a rotational movement of the coating relative to the body member; (b) the body member includes an outer end having an internal step therein and defining an edge; and (c) the liner includes an internal slot positioned to receive the edge of the member to the body, when the liner is mounted in protective relationship to the body member; (i) the internal groove has a continuous, closed internal surface. 6. An air cleaner assembly according to any of claims 3 and 5, characterized in that: (a) the body member includes a side wall and a wall at the end; (i) the body member defines an interior opening of the air cleaner and an air flow inlet; (n) the side wall defines an open end for the selected insertion and removal of an air filter element; (iii) the body member includes a generally cylindrical cover engaging surface, and the liner includes a mating surface of the generally cylindrical body member: i) the liner selectively slides in a rotational manner, relative to the cylindrical coupling surface of the body member, during the selected movement of the closure assembly between the closed and open orientations. 7. An air cleaner assembly according to any of claims 1, 2 and 4, characterized in that: (a) the body member includes a side wall and a wall at the end; (i) the body member defines an interior opening of the air cleaner and an inlet of the air flow; and (ii) the side wall defines an open end for the insertion and removal of an air filter element. 8. An air cleaner assembly according to any of claims 3 and 5, characterized in that: (a) the rotation activated closure assembly includes: a handle arrangement comprising a plurality of handles placed on a cover member and the body; and a leg arrangement comprising a plurality of legs positioned on the cube and body member. 9. An air cleaner assembly according to any of claims 1 and 2, characterized in that: (a) the rotationally activated closure assembly includes a leg arrangement comprising a plurality of legs positioned on a cover member and body; (i) the cover member is secured on the body member by the rotary coupling between the handle arrangement and the leg arrangement, when the closure assembly is in the closed second orientation. 10. An air cleaner assembly according to any of claims 1, 2, 4, 8, and 9 characterized in that: (a) each of the handles includes a front surface and an opposing back surface; the lugs may be positioned such that, when the liner is rotated, relative to the body member, towards the closed orientation: (A) the front surface of each lug is placed on one side of each lug where the rotation occurs; (1) The front surface includes a recess portion directed at an oblique angle relative to a direction of rotation of the liner during the closing assembly operation to move between the open and closed orientations. An air cleaner assembly according to claim 10, characterized in that: (a) the back surface of each grip includes a portion that is not parallel to the recessed portion of the front surface of the same grip that extends with a oblique angle in relation to the direction of rotation. 12. An air cleaner assembly according to any of claims 10 and 11, characterized in that: (a) a portion of the rear surface of each handle extends at an oblique angle relative to the direction of rotation. 13. An air cleaner assembly according to any of claims 8 and 9, characterized in that: (a) the leg arrangement and the handle arrangement are each placed, so that when the closure assembly is in a closed orientation, all legs and lugs are placed under at least one portion: a portion of the body member; and, a portion of the cover, without opening through the housing placed directly on any of the legs and handles. 14. An air cleaner assembly according to any of claims 1, 4, and 8, characterized in that: (a) each handle has a non-rectangular outer perimeter. 15. An air cleaner assembly according to any of claims 8, 9 and 13, characterized in that: (a) each leg includes a segment in the form of banana. 16. An air cleaner assembly according to any of claims 1, 2, 8, 9, 13 and 15, characterized in that: (a) each handle is p-shaped, has a limb that extends generally perpendicularly to a direction of rotation of the cover relative to the body member during closure. 17. An air cleaner assembly according to any of claims 1, 2, 8, 9, 13, 15 and 16, characterized in that: (a) each handle defines an outer perimeter area of at least 130 mm2. 18. An air cleaner assembly according to claim 17, characterized in that: (a) each handle defines a central hole having an area of at least 50 mm2. 19. An air cleaner assembly according to any of claims 8, 9, 13, and 15, characterized in that: (a) the cover is a molded plastic member with the legs molded therein; and (b) the body member is a molded plastic construction with the handles molded therein. 20. An air cleaner assembly according to claim 19, characterized in that: (a) at least 10 feet are molded in the cover; Y (b) at least 10 handles are molded in the body member. 21. An air cleaner assembly according to any of claims 1, 2, 4 and 8-20, characterized in that: (a) each handle is spaced at least 10 mm from an open edge of the body member. 22. An air cleaner assembly according to any of claims 1-4, 7 and 9, characterized in that: (a) the body member includes an outer end and has an internal pedestal therein; and (b) the liner includes an internal groove positioned to receive an edge of the body member, when the liner is assembled with a cover relationship to the body member. 23. An air cleaner assembly according to any of claims 5 and 22, characterized in that: (a) the internal pedestal of the body member and the internal groove of the liner are sized and configured so that the edge of the body member projects to the at least 3 mm inside the slot, when the liner is mounted with protection ratio to the body member. 24. An air cleaner assembly according to any of claims 5, 22, and 23, characterized in that: (a) the external end of the body member includes a flange section sized to extend at a distance of at least 5 mm from the internal pedestal towards the outer end of the body member. 25. An air cleaner assembly according to any of claims 5 and 22, characterized in that: (a) the internal pedestal of the body member and the internal groove of the liner are sized and configured so that the edge of the body member projects to the less 6 mm inside the slot, when: the liner is mounted on the protection ratio to the body member. 26. An air cleaner assembly according to any of claims 23-25, characterized in that: (a) the slot is placed with a larger section thereof, placed at least 15 mm from the open end of the liner or cover. 27. An air cleaner assembly according to any of claims 23-25, characterized in that: (a) the groove is placed with a larger section thereof, placed at least 25 mm from the open end of the liner. 28. An air cleaner assembly according to any of claims 5, 22, and 23, characterized in that: (a) the external end of the body member includes a flange section sized to extend at a distance of at least 8 mm from the internal pedestal towards the outer end of the body member. 29. An air cleaner assembly according to any of claims 4 and 5, characterized in that: (a) the rotation activated closure assembly includes a leg arrangement comprising a plurality of legs positioned on a cover member and body; (i) the cover member is secured on the body member by the rotary coupling between the handle arrangement and the leg arrangement, when the closure assembly is in the closed second orientation. An air cleaner assembly according to any of claims 9 and 29, characterized in that: (a) a movable coupling finger that is selectively positioned between the coupled and released positions; (i) the coupling finger, when in the engaged position it is positioned to secure a handle between a portion of the engaging finger and a member of the selected leg to prevent rotary movement of the liner relative to the body member; and (ii) the engaging finger, when in the release position, releases a selected grip to allow the selected rotational movement of the liner relative to the body member. 31. An air cleaner assembly according to claim 30, characterized in that it includes: (a) a sliding mount on the coating; (i) the coupling finger is slidably mounted in the sliding mount, for the movement selected between the coupled and release positions. 32. An air cleaner assembly according to claim 32, characterized in that: (a) each coupling finger includes a first flexible extension therein, oriented to retain the finger mounted slidably in the slide mount. 33. An air cleaner assembly according to any of claims 1, 2, 4, 8, and 9 characterized in that: (a) each of the handles includes a front surface and an opposite back surface; (i) each of the lugs is positioned such that, when the liner is rotated, relative to the body member, towards the closed orientation the front surface of each lug is placed on one side of each lug where the rotation occurs, and the rear surface is located on one side of each opposite handle from where the rotation occurs; and (b) the first flexible extension of the coupling finger defines a wall positioned to extend along the rear surface of the handles, even when the finger is in the closed orientation. 34. An air cleaner assembly according to any of claims 1-33, characterized in that it includes: (a) a closing adjustment outlet tube to the body member. 35. An air cleaner assembly according to any of claims 1-34, characterized in that it includes: (a) a first filter element operably placed therein. 36. An air cleaner assembly according to claim 35 characterized in that it includes: (a) a safety element operably positioned therein. 37. A method for closing an air cleaner assembly in accordance with claim 1; characterized in that the method includes the steps of: (a) covering a successful end of the body member, with the coating; and (b) rotating the liner, relative to the body member, to engage a plurality of legs IJJ selected from the lugs and the closure to cover the body member. 38. A method for closing an air cleaner assembly in accordance with claim 2; characterized in that the method includes the steps of: (a) covering an open end of the body member, with the coating; and (b) rotating the liner, relative to the body member, to engage the selected P-shaped handles during closure. 39. A method according to claim 38, characterized in that: (a) the step of rotating the liner includes coupling a segment of the selected leg with a tip of the P-shaped handle selected to block rotation to the liner relative to the lug. member of the body beyond a selected amount of rotation. 40. A method for closing an air cleaner assembly in accordance with claim 3; characterized in that the method includes the steps of: (a) covering an open end of the body member, with the coating; and (b) rotating the liner, relative to the body member, to engage the rotationally activated closure assembly; and (c) removing pressure from a coupling finger in a mating position, to block the non-predestined reverse rotation of the cover relative to the body member. 41. A method for closing an air cleaner assembly in accordance with claim 4; characterized in that the method includes the steps of: (a) covering an open end of the body member, with the coating; and (b) rotating the liner, relative to the body member, to engage one of the selected lugs; the handle that has the first projection and a second projection separated from it with a slot between them. 42. A method for closing an air cleaner assembly in accordance with claim 5; characterized in that the method includes the steps of: (a) covering an open end of the body member, with the coating; and (b) orienting the edge of the body member into the internal groove of the liner while rotating the liner, relative to the body member, to engage a rotationally activated closure assembly. 43. A liner for an air cleaner assembly, characterized in that the liner comprises: (a) a generally cylindrical side wall having a mating surface of the body member; and (b) a plurality of closed projections which, during coupling, prevent the cover of the remainder of the air cleaner assembly from separating, during use and when in the closed position. (i) at least one of the closed projections projects from the mating surface of the body member; (ii) at least one of the closure projections projecting from the engaging surface of the body member has at least one: (A) P-shape; (B) a shape of a lobe having a perimeter defining two recessed projections with a slot therebetween; and (C) a banana shape. 44. A liner for mounting an open end to the body member of an air cleaner assembly, characterized in that the liner comprises: (a) a generally cylindrical side wall defining an interior opening and having a mating surface of the body member; (i) the mating surface of the body member is an inner surface of the side wall; (ii) the engaging surface of the body member is in open communication with the open interior, when the liner is disassembled from the body member; (b) a plurality of legs; (i) at least one of the projections of the legs from the mating surface to the body member and is oriented such that a position of the body member is between at least one of the legs and the open interior when mounted operably on the body. member of the body; and (ii) at least one of the legs projecting from the mating surface of the body member is L-shaped. 45. A liner for an air cleaner assembly, characterized in that the liner comprises: (a) a generally cylindrical side wall defining an interior opening and having a mating surface of the member to the body; (i) the mating surface of the body member is an inner surface of the side wall; (b) a plurality of legs; (i) at least one of the projections of the legs from the engaging surface of the body member and (ii) at least one of the legs projecting from the engaging surface of the body member is L-shaped, 46. A liner for covering an open end of the body member of an air cleaner assembly and securely secured thereto by rotating the liner, relative to the body member, to engage a rotationally locked closure assembly; the liner comprises: (a) a generally cylindrical side wall having a mating surface of the body member; and (i) a mating surface of the body member, the engaging surface of the body member is in open communication with the open interior, when disengaging from a body member; (b) a plurality of closed projections at least one closed projection extends from the mating surface of the body member; (i) at least one of the closure projections is constructed and arranged to engage and close with a portion of the body member, when rotated relative to the body member; and (c) a receiving slot is defined between the side wall and the ring; (i) the slot has a continuous internal surface, and (ii) the slot is oriented to receive an edge of a body member, when the coating operably engages the body member to provide a weather seal to inhibit the passage of liquid through the enclosure wall along the slit between the liner and the body member. 47. A liner for covering an open end of the body member of an air cleaner assembly and securely secured thereto by rotating the liner, relative to the body member, to couple a rotationally locked closure assembly; The liner comprises: a) a generally cylindrical side wall having: (i) a mating surface of the body member; (ii) the slide mount on it; the slidable mount defines a mounting groove of the coupling finger; (b) a plurality of closed projections at least one closed projection extends from the mating surface of the body member; (i) at least one of the closure projections is constructed and arranged to engage and close with a portion of the body member, when rotated relative to the body member; and (c) a coupling finger mounted in the sliding slot mounting slot; the finger selectively slides between the closed orientation and an open orientation; (i) the coupling finger is positioned to block the rotation of the liner relative to the body member, when the lining projections have been rotated in engagement with portions of the body member, and when the finger is scratched in a closed orientation; and (ii) the coupling finger, when in the release position, is positioned to allow rotation of the liner, relative to the body member. 48. A coating according to any of claims 43, 46, and 47 wherein: (a) the engagement surface of the body member is on the inner portion of the side wall; and (b) the closed projections extend from the inner portion. 49. A liner according to any of claims 43, 46, and 47, characterized in that: (a) the coupling surface of the body member is on the outer portion of the side wall; and (b) the closed projections extend from the outer portion. 50. A liner according to any of claims 43-45 and 47 characterized porcue further comprises: (a) a ring projecting internally from the side wall, (b) a receiving groove between the side wall and the ring; (i) the slot is positioned to receive an edge of a body member. 51. A liner according to claim 46, characterized in that it further includes: (a) a ring projecting internally from the side wall, (i) the groove is defined between the side wall and the ring. 52. A liner according to any of claims 50 and 51, characterized in that: (a) the ring has one end; (i) the end of the ring is oriented to engage a portion of the member; body, when the liner is operably engaged in the body member. 53. A liner according to any of claims 46 and 50-52, characterized in that: (a) the groove is placed with a larger section of it placed at least 15 mm from an open end of the liner. 54. A liner according to any of claims 46 and 50-52, characterized in that: (a) the groove is positioned with a larger section of this placed in at least 25 mm from an open end of the liner. 55. A liner according to claim 43, characterized in that: (a) each of the lobes includes a front surface and an opposite back surface; (i) the front surface includes a recess portion directed at an oblique angle relative to a direction of rotation of the liner when mounted on a body member. 56. A liner according to claim 55, characterized in that: (a) the back surface of each lobe includes a portion that is not parallel to the recessed portion of the front surface of the lobe itself. 57. A liner according to claim 56, characterized in that: [a) the portion of the back surface of each lug extends at an oblique angle relative to a direction of rotation of the liner when mounted on a body member. - 58. A liner according to any of claims 43-57 characterized in that it further includes: (a) an exhaust pipe in open communication with the interior portion of the liner. 59. A coating according to any of claims 43-58 characterized in that it further includes: (a) a filter element operably oriented within an interior portion thereof. 60. A coating according to claim 59 characterized in that: (a) the filter element is removable and replaceable in the coating. ASSEMBLY AND METHOD OF AIR CLEANER SUMMARY OF THE INVENTION An air cleaner assembly having a body member and a removable cover is provided. The assembly includes a lock assembly (97-98) for coupling between the cover and the body member. The preferred closure assembly is a rotationally activated closure assembly movable between the closing (Fig. 10) and open (fig.11) orientations by - :: the selected amount of relative rotational movement between the cover and the body member .