CA1090266A - Dust receptacle for vacuum cleaner - Google Patents
Dust receptacle for vacuum cleanerInfo
- Publication number
- CA1090266A CA1090266A CA285,386A CA285386A CA1090266A CA 1090266 A CA1090266 A CA 1090266A CA 285386 A CA285386 A CA 285386A CA 1090266 A CA1090266 A CA 1090266A
- Authority
- CA
- Canada
- Prior art keywords
- socket
- dust receptacle
- end portion
- carrier
- dust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
- A47L9/1427—Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
- Packages (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Sampling And Sample Adjustment (AREA)
- Cyclones (AREA)
- Filtering Materials (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A fabric envelope surrounds a supporting cage. The open ends of the envelope and of the cage are embraced and releas-ably connected by a tubular socket. A disposable filter element includes an annular carrier which is frictionally receivable in the socket so as to be detachable from the same, and a paper dustbag mounted on the carrier and lodged in the fabric envelope when the carrier is received in the socket. A spring detent on the socket is engageable with a snap action in a cooperating recess of a vacuum cleaner body to connect the dust receptacle with the same.
A fabric envelope surrounds a supporting cage. The open ends of the envelope and of the cage are embraced and releas-ably connected by a tubular socket. A disposable filter element includes an annular carrier which is frictionally receivable in the socket so as to be detachable from the same, and a paper dustbag mounted on the carrier and lodged in the fabric envelope when the carrier is received in the socket. A spring detent on the socket is engageable with a snap action in a cooperating recess of a vacuum cleaner body to connect the dust receptacle with the same.
Description
?
1 The present invention relates to vaccuum cleaners.
More particularly, the invention relates to a dust re-ceptacle for use with vacuum cleaners, and in particular to the type of dust receptacle having a disposable filter element.
Most modern vacuum cleaners use a dust receptacle which accomodates a disposable filter element, usually a bag of paper or the like. When the bag is filled with vacuumed-up dust and the like, it is removed from the receptacle and discarded with its contents, to be replaced with a new bag.
Various ways of mounting the bag have become known.
For example, one type of receptacle has a hinged cover provided with a duct or nipple to which the disposable bag is secured.
When the bag is to be discarded, the cover is pivoted to open position to afford access to the bag. Because of this pivoting movement, and because of the rather confined space in which the (filled) bag can not readily move to follow the movement of the cover, there is the constant danger that the force exerted upon the bag by movement of the cover (and counteracted by the weight of the bag contents) may lead to rupture of the bag which is usually made of paper. If this happens, all the dirt accumulat-ed in the bag will drop into the vacuum cleaner and dirty it;
also, such a happening would necessarily result in contamination of the garments and body of a user. In other words: the very reason for using disposable dust bags would be negated.
Another prior-art construction uses the receptacle cover the clamp the dust bag against an abutment. When this connection is released for removal of the bag, it is practically impossible to remove the bag without spilling some of its con-tents and creating unhygenic conditions.
Also, the dust bag receptacles of the prior art are made 1 of one piece, i.e., the cage in which the dust bag is received and the socket which secures the cage to the vacuum cleaner body, are of one piece. This is another factor which makes it difficult to handle the filled dust bag in a hygenically satisfactory manner (due to difficult access) and, when it is desired to surround the cage with a fabric envelope (usually for reasons of appearance) the envelope cannot be connected to the receptacle without great difficulties.
It is an object of the invention to overcome the dis-advantages of the prior art.
; More particularly, it is an object of the invention to provide an improved dust receptacle which is not subject to those disadvantages.
A further object is to provide such a dust receptacle wherein the cage and the socket are separate Erom one another but can be readily and simply connected to each other.
Still another object is to provide such a dust recep-tacle which can be connected to, and disconnected from, the vacuum cleaner body in a simpler manner than heretofore.
A concomitant object is to provide a dust receptacle of the type under discussion, wherein the installation and removal of the disposable filter elements is greatly facilitated.
In keeping with these objects and with still others which will become apparent hereafter, one aspect of the invention resides in a dust receptacle for use with a vacuum clenaer.
Briefly stated, the novel dust receptacle may comprise a support-ing cage having an end portion which bounds an open end, a fabric envelope surrounding the exterior of the cage, a tubular socket embracing the end portion of the cage and an end portion of the fabric envelope, and mating connecting portions on the end portion ?~j~
1 and the tubular socket for releasably connecting the fabric en-velope to the cage; a disposable filter element including a car-rier receivable in the tubular socket and a dust bag of fibrous material mounted on the carrier and lodged in the fabric envelope when the carrier is received in the socket; and means for detach-ably connecting the socket to the body of a vacuum cleaner.
The novel features which are considered as character-istic for the invention are se~ forth in particular in the ap-pended claims. The invention itself, however, both as to its construction and its method of operation, together with additional objects and advantages thereof, will be best understood from the following description of specific embodiments when read in con-nection with the accompanying drawing.
FIG. 1 is a diagrammatic side view, illustrating a vacuum cleaner provided with a dust receptacle according to the invention;
FIG. 2 is an enlarged view, partly sectioned, illustrat-ing a detail of FIG. l;
FIG. 3 is a longitudinal section through the dust re-ceptacle according to the invention; and FIG. 4 is a fragmentary section, on an enlarged scale,taken in a plane normal to the sectioning plane of FIG. 3.
FIGURE 1 shows, somewhat diagrammatically, a vacuum cleaner 14 having one of the usual vacuuming tools 25 (brush nozzle), a handle 26 and a dust receptacle Z7.
AS FIG. 2 shows more clearly, the receptacle 27 is re-leasably connected to the body of vacuum cleaner 14. It has a supporting cage 2 (more about this in the description of FIG. 3) and a separate socket 5 by means of which the cage 2 is connect-able to the cleaner 14. The latter is provided with a recess ~:3~Q~
1 bounded in part by a shoulder or collar 28; socket 5 is receivablein the recess so that it can engage behind the collar 28. At the side of the recess which is located opposite the collar 28 there is provided an abutmen~ 13 behind which a spring detent 12 of socket 5 snaps when the socket is inserted in~o the recess. This connection can be released in a simple manner by merely inwardly depressing the spring detent 12. Preferably ~but not necessarily) the spring detent may be of one piece with the socket 5 (they could be of metal or synthetic plastic).
FIG. 3 shows that the receptacle 27 has the aforemen-tioned supporting cage 2 which is rigid or substantially rigid (e.g., slightly flexible) and which may be of bars, wire mesh, apertured sheet material (e.g., metal, plastic) or the like. The cage 2 is surrounded by a fabric envelope 18 (shown in broken lines) of e.g., a woven or knitted fabric. The portion bounding the open end 32 of the cage 2 is received in a recess of the socket 5 which, in axial section, is of substantially H-shaped configuration. The end portion of fabric envelope 18 which bounds the open end of the envelope, is folded inwardly into the open end 32 of cage 2, so that it is also located in the recess of socket 5.
The end portion of cage 2 adjacent the open end 32 thereof is provided with openings or depressions 3 (FIG. 4), and the socket 5 has cooperating springy projections 4. When the end portions of cage 2 and of envelope 18 are pushed into the recess of socket 5, the projections 4 snap into the openings 3 and estab-lish a releasable connection. Of course, care must be taken that the inwardly folded material of envelope 18 will not overlie the openings 3 and prevent proper entry of the projections 4 into the~.
Hooks 19 and 20 (or pointed projections) on socket 5 and cage 2 hook into (or penetrate into) the fabric of the envelope 18, to ~?~
1 hold the same firmly in place.
A disposable filter element is composed of the carrier 6 and a dust bag 30 of paper or another suitably fibrous material (e.g., non-woven textile material). Carrier 6 is annular and provided on its outer periphery with engaging portions 7 of elasti-cally yieldable material, preferably an elastomeric material such as natural or synthetic rubber or a synthetic plastic material.
What is important is that the portions 7 be yieldable to pressure, so that when carrier 6 is pushed into socket 5 it will be fricti-onally retained therein tappropriate dimensioning is, of course,presupposed). Portions 7 are advantageously provided with one or more lips 16 which are sufficiently yieldable to compensate for tolerance variations which may occur in the manufacture of these cooperating, mass-produced items. The frictional securing of carrier 6 in socket 5 makes it possible to later (when bag 30 is filled) withdraw carrier and bag with a smooth (not jerky) mtoion which avoids spilling of the bag contents. For installation and withdrawal the carrier 6 is provided with a handle 34.
Carrier 6 has an inner periphery bounded by walls 9a, 9b which defines a duct 9 communicating with the interior of dust bag 30 -- and adapted to communicate with the intake duct of the vacuum cleaner 14. The wall 9b defines with wall 9a -- over part of the length of the same -- an annular compartment 24 in which sound-absorbing material 23 (e.g., fibrous sliver, foam-plastic material) is accommodated. The remaining portion of wall 9a forms an inclined section of the duct 9, the generatrix 10 of which is arcuately curved as shown (FIG. 3).
A sealing gasket 33 is accommodated in a second annular recess of socket 5, at that end of the socket which faces away from the cage 2. It engages the body of cleaner 14 and forms a 1 therewith when socket 5 is connected to the cleaner. Another sealing gasket 29 surrounds the inlet end of socket 9 to form a further seal with cleaner 14.
The invention thus makes it possible to produce the elements of the dust receptacle separately and to assemble them in a quick and simple manner, merely by pushing socket and cage together whereby the fabric envelope is secured at the same time and in the same operation. The use of the portions 7 and lips 16 permits smooth withdrawal of carrier 6 from socket 5, avoiding the danger of spillage of the contents of the bag 30 and also eliminat-ing the danger that bag 30 migth tear.
While the invention has been illustrated and described as embodied in a dust receptacle, it is not intended to be limited to the details shown, since various modifications and structural changes may be made without departing in any way from the spirit of the present invention.
1 The present invention relates to vaccuum cleaners.
More particularly, the invention relates to a dust re-ceptacle for use with vacuum cleaners, and in particular to the type of dust receptacle having a disposable filter element.
Most modern vacuum cleaners use a dust receptacle which accomodates a disposable filter element, usually a bag of paper or the like. When the bag is filled with vacuumed-up dust and the like, it is removed from the receptacle and discarded with its contents, to be replaced with a new bag.
Various ways of mounting the bag have become known.
For example, one type of receptacle has a hinged cover provided with a duct or nipple to which the disposable bag is secured.
When the bag is to be discarded, the cover is pivoted to open position to afford access to the bag. Because of this pivoting movement, and because of the rather confined space in which the (filled) bag can not readily move to follow the movement of the cover, there is the constant danger that the force exerted upon the bag by movement of the cover (and counteracted by the weight of the bag contents) may lead to rupture of the bag which is usually made of paper. If this happens, all the dirt accumulat-ed in the bag will drop into the vacuum cleaner and dirty it;
also, such a happening would necessarily result in contamination of the garments and body of a user. In other words: the very reason for using disposable dust bags would be negated.
Another prior-art construction uses the receptacle cover the clamp the dust bag against an abutment. When this connection is released for removal of the bag, it is practically impossible to remove the bag without spilling some of its con-tents and creating unhygenic conditions.
Also, the dust bag receptacles of the prior art are made 1 of one piece, i.e., the cage in which the dust bag is received and the socket which secures the cage to the vacuum cleaner body, are of one piece. This is another factor which makes it difficult to handle the filled dust bag in a hygenically satisfactory manner (due to difficult access) and, when it is desired to surround the cage with a fabric envelope (usually for reasons of appearance) the envelope cannot be connected to the receptacle without great difficulties.
It is an object of the invention to overcome the dis-advantages of the prior art.
; More particularly, it is an object of the invention to provide an improved dust receptacle which is not subject to those disadvantages.
A further object is to provide such a dust receptacle wherein the cage and the socket are separate Erom one another but can be readily and simply connected to each other.
Still another object is to provide such a dust recep-tacle which can be connected to, and disconnected from, the vacuum cleaner body in a simpler manner than heretofore.
A concomitant object is to provide a dust receptacle of the type under discussion, wherein the installation and removal of the disposable filter elements is greatly facilitated.
In keeping with these objects and with still others which will become apparent hereafter, one aspect of the invention resides in a dust receptacle for use with a vacuum clenaer.
Briefly stated, the novel dust receptacle may comprise a support-ing cage having an end portion which bounds an open end, a fabric envelope surrounding the exterior of the cage, a tubular socket embracing the end portion of the cage and an end portion of the fabric envelope, and mating connecting portions on the end portion ?~j~
1 and the tubular socket for releasably connecting the fabric en-velope to the cage; a disposable filter element including a car-rier receivable in the tubular socket and a dust bag of fibrous material mounted on the carrier and lodged in the fabric envelope when the carrier is received in the socket; and means for detach-ably connecting the socket to the body of a vacuum cleaner.
The novel features which are considered as character-istic for the invention are se~ forth in particular in the ap-pended claims. The invention itself, however, both as to its construction and its method of operation, together with additional objects and advantages thereof, will be best understood from the following description of specific embodiments when read in con-nection with the accompanying drawing.
FIG. 1 is a diagrammatic side view, illustrating a vacuum cleaner provided with a dust receptacle according to the invention;
FIG. 2 is an enlarged view, partly sectioned, illustrat-ing a detail of FIG. l;
FIG. 3 is a longitudinal section through the dust re-ceptacle according to the invention; and FIG. 4 is a fragmentary section, on an enlarged scale,taken in a plane normal to the sectioning plane of FIG. 3.
FIGURE 1 shows, somewhat diagrammatically, a vacuum cleaner 14 having one of the usual vacuuming tools 25 (brush nozzle), a handle 26 and a dust receptacle Z7.
AS FIG. 2 shows more clearly, the receptacle 27 is re-leasably connected to the body of vacuum cleaner 14. It has a supporting cage 2 (more about this in the description of FIG. 3) and a separate socket 5 by means of which the cage 2 is connect-able to the cleaner 14. The latter is provided with a recess ~:3~Q~
1 bounded in part by a shoulder or collar 28; socket 5 is receivablein the recess so that it can engage behind the collar 28. At the side of the recess which is located opposite the collar 28 there is provided an abutmen~ 13 behind which a spring detent 12 of socket 5 snaps when the socket is inserted in~o the recess. This connection can be released in a simple manner by merely inwardly depressing the spring detent 12. Preferably ~but not necessarily) the spring detent may be of one piece with the socket 5 (they could be of metal or synthetic plastic).
FIG. 3 shows that the receptacle 27 has the aforemen-tioned supporting cage 2 which is rigid or substantially rigid (e.g., slightly flexible) and which may be of bars, wire mesh, apertured sheet material (e.g., metal, plastic) or the like. The cage 2 is surrounded by a fabric envelope 18 (shown in broken lines) of e.g., a woven or knitted fabric. The portion bounding the open end 32 of the cage 2 is received in a recess of the socket 5 which, in axial section, is of substantially H-shaped configuration. The end portion of fabric envelope 18 which bounds the open end of the envelope, is folded inwardly into the open end 32 of cage 2, so that it is also located in the recess of socket 5.
The end portion of cage 2 adjacent the open end 32 thereof is provided with openings or depressions 3 (FIG. 4), and the socket 5 has cooperating springy projections 4. When the end portions of cage 2 and of envelope 18 are pushed into the recess of socket 5, the projections 4 snap into the openings 3 and estab-lish a releasable connection. Of course, care must be taken that the inwardly folded material of envelope 18 will not overlie the openings 3 and prevent proper entry of the projections 4 into the~.
Hooks 19 and 20 (or pointed projections) on socket 5 and cage 2 hook into (or penetrate into) the fabric of the envelope 18, to ~?~
1 hold the same firmly in place.
A disposable filter element is composed of the carrier 6 and a dust bag 30 of paper or another suitably fibrous material (e.g., non-woven textile material). Carrier 6 is annular and provided on its outer periphery with engaging portions 7 of elasti-cally yieldable material, preferably an elastomeric material such as natural or synthetic rubber or a synthetic plastic material.
What is important is that the portions 7 be yieldable to pressure, so that when carrier 6 is pushed into socket 5 it will be fricti-onally retained therein tappropriate dimensioning is, of course,presupposed). Portions 7 are advantageously provided with one or more lips 16 which are sufficiently yieldable to compensate for tolerance variations which may occur in the manufacture of these cooperating, mass-produced items. The frictional securing of carrier 6 in socket 5 makes it possible to later (when bag 30 is filled) withdraw carrier and bag with a smooth (not jerky) mtoion which avoids spilling of the bag contents. For installation and withdrawal the carrier 6 is provided with a handle 34.
Carrier 6 has an inner periphery bounded by walls 9a, 9b which defines a duct 9 communicating with the interior of dust bag 30 -- and adapted to communicate with the intake duct of the vacuum cleaner 14. The wall 9b defines with wall 9a -- over part of the length of the same -- an annular compartment 24 in which sound-absorbing material 23 (e.g., fibrous sliver, foam-plastic material) is accommodated. The remaining portion of wall 9a forms an inclined section of the duct 9, the generatrix 10 of which is arcuately curved as shown (FIG. 3).
A sealing gasket 33 is accommodated in a second annular recess of socket 5, at that end of the socket which faces away from the cage 2. It engages the body of cleaner 14 and forms a 1 therewith when socket 5 is connected to the cleaner. Another sealing gasket 29 surrounds the inlet end of socket 9 to form a further seal with cleaner 14.
The invention thus makes it possible to produce the elements of the dust receptacle separately and to assemble them in a quick and simple manner, merely by pushing socket and cage together whereby the fabric envelope is secured at the same time and in the same operation. The use of the portions 7 and lips 16 permits smooth withdrawal of carrier 6 from socket 5, avoiding the danger of spillage of the contents of the bag 30 and also eliminat-ing the danger that bag 30 migth tear.
While the invention has been illustrated and described as embodied in a dust receptacle, it is not intended to be limited to the details shown, since various modifications and structural changes may be made without departing in any way from the spirit of the present invention.
Claims (15)
1. A dust receptacle for use with a vacuum cleaner;
comprising a supporting cage having an end portion which bounds an open end, a fabric envelope surrounding the exterior of said cage, a tubular socket embracing said end portion of said cage and an end portion of said fabric envelope, and mating connecting portions on said end portion and said tubular socket for releasably con-necting sad fabric envelope to said cage; a disposable filter element, including a carrier receivable in said tubular socket and a dust bag of fibrous material mounted on said carrier and lodged in said fabric envelope when said carrier is received in said socket; and means for detachably connecting said socket to the body of a vacuum cleaner.
comprising a supporting cage having an end portion which bounds an open end, a fabric envelope surrounding the exterior of said cage, a tubular socket embracing said end portion of said cage and an end portion of said fabric envelope, and mating connecting portions on said end portion and said tubular socket for releasably con-necting sad fabric envelope to said cage; a disposable filter element, including a carrier receivable in said tubular socket and a dust bag of fibrous material mounted on said carrier and lodged in said fabric envelope when said carrier is received in said socket; and means for detachably connecting said socket to the body of a vacuum cleaner.
2. A dust receptacle as defined in claim 1, wherein said mating connecting portions comprise recesses in said end portion of said supporting cage, and cooperating snap-in projec-tions on said socket.
3. A dust receptacle as defined in claim 1, wherein said carrier is annular and has an outer periphery and further comprising engaging portions on said periphery and frictionally engageable with said socket when said carrier is received in the same.
4. A dust receptacle as defined in claim 1, said carrier being annular and having an inner periphery bounded by a wall which forms a duct communicating with said dust bag, a generatrix of said duct being arcuately curved in the longitudinal direction thereof.
5. A dust receptacle as defined in claim 1, said means for detachably connecting comprising at least one spring detent adapted to engage a cooperating portion of the vacuum cleaner body with a snap action.
6. A dust receptacle as defined in claim 1, said carrier being annular and having an outer periphery; and further comprising engaging portions on said outer periphery and having respective radially outwardly directed surfaces provided with at least one lip which is frictionally engageable with said socket when said carrier is received in the same.
7. A dust receptacle as defined in claim 6, wherein said engaging portions are of elastomeric material.
8. A dust receptacle as defined in claim 7, wherein said elastomeric material is rubber.
9. A dust receptacle as defined in claim 1, wherein said end portion of said fabric envelope is confined between said socket and said end portion of said supporting cage.
10. A dust receptacle as defined in claim 9; and further comprising projections on said socket which penetrate said end portion of said fabric envelope.
11. A dust receptacle as defined in claim 9; and further comprising hooks on said socket which engage in said end portion of said fabric envelope.
12. A dust receptacle as defined in claim 1; and further comprising projections on said end portion of said supporting cage which penetrate said end portion of said fabric envelope.
13. A dust receptacle as defined in claim 1; and further comprising hooks on said end portion of said supporting cage which engage in said end portion of said fabric envelope.
14. A dust receptacle as defined in claim 1, wherein said means for detachably connecting comprise at least one spring detent portion which is of one piece with said socket.
15. A dust receptacle as defined in claim 1, said carrier being annular and having an inner periphery bounded by wall means which forms a duct communicating with said dust bag, said wall means forming over at least part of the length of said duct a chamber which surrounds the duct; and a body of sound-absorbing material in said chamber.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG7626772.6 | 1976-08-27 | ||
| DE7626772U DE7626772U1 (en) | 1976-08-27 | 1976-08-27 | FILTER CASSETTE FOR VACUUM CLEANER |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1090266A true CA1090266A (en) | 1980-11-25 |
Family
ID=6668665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA285,386A Expired CA1090266A (en) | 1976-08-27 | 1977-08-24 | Dust receptacle for vacuum cleaner |
Country Status (16)
| Country | Link |
|---|---|
| AT (1) | AT359963B (en) |
| BE (1) | BE858170A (en) |
| CA (1) | CA1090266A (en) |
| CH (1) | CH622940A5 (en) |
| DE (1) | DE7626772U1 (en) |
| DK (1) | DK144507C (en) |
| ES (1) | ES230608Y (en) |
| FI (1) | FI67661C (en) |
| FR (1) | FR2362611A1 (en) |
| GB (1) | GB1535635A (en) |
| GR (1) | GR64053B (en) |
| IE (1) | IE45868B1 (en) |
| IT (1) | IT1116691B (en) |
| NL (1) | NL7708816A (en) |
| NO (1) | NO143126C (en) |
| SE (1) | SE418051B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8232270U1 (en) * | 1982-11-18 | 1983-04-07 | Vorwerk & Co Interholding Gmbh, 5600 Wuppertal | DEVICE FOR DISPLAYING THE FILLING LEVEL OF THE FILTER BAG IN HAND VACUUM CLEANERS |
| DE8320697U1 (en) * | 1983-07-19 | 1983-11-03 | Vorwerk & Co Interholding Gmbh, 5600 Wuppertal | FILTER CARTRIDGE FOR HAND VACUUM CLEANERS |
| US5143524A (en) * | 1990-02-20 | 1992-09-01 | The Scott Fetzer Company | Electrostatic particle filtration |
| US5405434A (en) * | 1990-02-20 | 1995-04-11 | The Scott Fetzer Company | Electrostatic particle filtration |
| US5376168A (en) * | 1990-02-20 | 1994-12-27 | The L. D. Kichler Co. | Electrostatic particle filtration |
| GB2307426A (en) * | 1995-11-23 | 1997-05-28 | Scapa Group Plc | Filter sleeve |
| US6277163B1 (en) | 1999-04-06 | 2001-08-21 | Oreck Holdings Llc | Vacuum cleaner outer bag |
-
1976
- 1976-08-27 DE DE7626772U patent/DE7626772U1/en not_active Expired
-
1977
- 1977-08-02 GR GR54087A patent/GR64053B/en unknown
- 1977-08-10 NL NL7708816A patent/NL7708816A/en not_active Application Discontinuation
- 1977-08-12 CH CH1010977A patent/CH622940A5/en not_active IP Right Cessation
- 1977-08-24 GB GB35584/77A patent/GB1535635A/en not_active Expired
- 1977-08-24 CA CA285,386A patent/CA1090266A/en not_active Expired
- 1977-08-24 IE IE1768/77A patent/IE45868B1/en unknown
- 1977-08-25 FR FR7725909A patent/FR2362611A1/en active Granted
- 1977-08-25 SE SE7709567A patent/SE418051B/en not_active IP Right Cessation
- 1977-08-25 IT IT7750776A patent/IT1116691B/en active
- 1977-08-26 ES ES1977230608U patent/ES230608Y/en not_active Expired
- 1977-08-26 DK DK381377A patent/DK144507C/en not_active IP Right Cessation
- 1977-08-26 NO NO772966A patent/NO143126C/en unknown
- 1977-08-26 BE BE180483A patent/BE858170A/en not_active IP Right Cessation
- 1977-08-26 AT AT621177A patent/AT359963B/en not_active IP Right Cessation
- 1977-08-26 FI FI772545A patent/FI67661C/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FI67661B (en) | 1985-01-31 |
| FR2362611A1 (en) | 1978-03-24 |
| ATA621177A (en) | 1980-05-15 |
| GR64053B (en) | 1980-01-19 |
| DE7626772U1 (en) | 1977-03-03 |
| NO772966L (en) | 1978-02-28 |
| ES230608U (en) | 1977-11-01 |
| NO143126B (en) | 1980-09-15 |
| ES230608Y (en) | 1978-03-01 |
| FR2362611B3 (en) | 1980-07-11 |
| IT1116691B (en) | 1986-02-10 |
| BE858170A (en) | 1977-12-16 |
| IE45868L (en) | 1978-02-27 |
| NL7708816A (en) | 1978-03-01 |
| GB1535635A (en) | 1978-12-13 |
| CH622940A5 (en) | 1981-05-15 |
| FI67661C (en) | 1985-05-10 |
| SE418051B (en) | 1981-05-04 |
| DK381377A (en) | 1978-02-28 |
| NO143126C (en) | 1980-12-29 |
| FI772545A (en) | 1978-02-28 |
| SE7709567L (en) | 1978-02-28 |
| DK144507B (en) | 1982-03-22 |
| IE45868B1 (en) | 1982-12-15 |
| DK144507C (en) | 1982-09-06 |
| AT359963B (en) | 1980-12-10 |
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