CA2132633A1 - A suction-tube connector for use in dental suction units - Google Patents
A suction-tube connector for use in dental suction unitsInfo
- Publication number
- CA2132633A1 CA2132633A1 CA002132633A CA2132633A CA2132633A1 CA 2132633 A1 CA2132633 A1 CA 2132633A1 CA 002132633 A CA002132633 A CA 002132633A CA 2132633 A CA2132633 A CA 2132633A CA 2132633 A1 CA2132633 A1 CA 2132633A1
- Authority
- CA
- Canada
- Prior art keywords
- suction hose
- hose connector
- suction
- connector
- outlet pipe
- 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.)
- Abandoned
Links
- 241000009298 Trigla lyra Species 0.000 abstract 1
- 239000012528 membrane Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 101100378101 Caenorhabditis briggsae ace-4 gene Proteins 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/14—Dental appliances for receiving spittle, with or without rinsing means therefor, e.g. dental basins, spittoons, cuspidors
Landscapes
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
- Filtration Of Liquid (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
(57) Abstract The invention concerns a suction-tube connector for use in dental suction units. in which the inlet piper(s) (2) and the outlet pipe (3) are located in the upper part (1) of the connector in such a way that no flow can take place between them. The lower part (18) of the connector which connects the inlet pipe (2) to the outlet pipe (3), contains a strainer screen (11) and is mounted so that it can be detached.
Description
` ~3%~
WO 93/lg694 PC~ 93/00~56 f~LE~ Pll~l~ r~ r,~ l L.~
FE~ TRANSLA I lui~
A SUCTION-TUBE CONNECTOR FOR USE IN
DENTAL SUCTION UNITS
The present invention relates to a suction-tube connector for dental suction units, this having an in]et pipe that can be connecked to the suction hose, an outlet pipe that can be connected wi-th the suction unit, and with a strainer screen that is located in the flow path between the inlet plpe and the outlet pipe in such a way that i-t can be removed.
A device o~ this kind is described, for example, in EP-A ~90 951.
This incorporates a housing with a cylindrical interior space and an inlet pipe opens out into this on its periphery and, displaced throuyh 90 on the periphery, the outlet pipe branches off upward. The strainer screen is removecl or installed at the face end and has a flat screen that is located between the inlet pipe and the outlet pipe and is connected -through a curved section of wall and a pan that lies beneath the opening of khe inlet pipe.
The screen serves to restrain coarse, solid particles fr`om the substances that are delivered through the suction hose. The inlet pipe comprises an angle piece that is supported in the housing so as to be rotatable to which the suction hose is connected. A flow regulator is incorporated in the outle~ pipe ~ -so as to be rotatable; this incorporates two disks that are connected through a strut that extends across less than half o~
the perlmeter. A disadvantage of this connector is its small mesh surface, which lies essentially perpendicular to the flow and can be plugged relatively easily so that it is necessary to empty and clean it at frequent intervals.
:: ' ~3~33 WO 93/19694 PCT/A~93/00056 It is the task of the present invention to significantly increase the mesh surface and, as far as possible, to avoid the mesh becoming clogged in a suction connector of the type described in the introduction hereto. According to the present invention, this is achieved in that the connector comprises an upper part in which the inlet pipe and the outle-t pipe are located in such a way that no elow can take place between them, and a detachable bottom part that connects the inlet pipe and the outlet pipe so that a flow can take place bet~een them, and in which the strainer screen is located.
since both the inlet pipe and the outlet pipe are on the same side of the connector, the size, configuration, and location of the strainer screen and the bottom part that accommodates it can be much better adapted to the demands imposed upon them. Thus, for example, a preferred embodiment that requires minimal installation space provides that the upper part incorporates connector recesses and rigidi lugs that can be inserted into the recesses, and snap-in spring tabs on the bottom part. If there is sufficient space available, in a second embodiment the bottom part can be arranged like a drawer. It is preferred tha`t a spring clip catch be provided to fix the bottom part in position.
The spring clip can also serve as a grip for the bottom part if it is rotatably supported on the bottom part and snaps behind retaining tabs in the top part. The spring clip can also be hinged onto the top part.
A very large screen surface results if the strainer screen is configured so as to be cup-shaped. In this way, it can approximate the shape of the bottom part and taper conically downwards. A maximal screen surface results if a side wall -that i5 configured as a screen extends bet~een the in-flow and the ~3~633 out-flow opening, this being aligned with the out-flow opening, therefore forming an extension of the outlet plpe. In a preferred embodiment, the st-rainer screen or the mesh surface of each side wall incorporates rods that extend from the top downward, and between which there are slits that widen out downward and to the outside. Thus, for all practical purposes, it is impossible for slits of this kind to be clogged by solid particles since these are moved downward along the widening slits. The strainer Ccreen is intended to trap only coarse particles that collect at the bottom, which is preferably configured so as to be continuous.
Since, as discussed above, both the size of the mesh surface and of the bottom part can be appropriately adapted to the demands placed upon them, a ~urther preferred embodiment is such that in the top part there is a second inlet pipe for connecting an additional suction hose. Because of this, the connector is only required once in a workplace that is normally equipped with two suction hoses of different diameters. In order to stress each suction hose as little as possible at the connection point, it is preferred that provision also be made such that both inl`et pipes are ~ormed by angle pieces that are located opposite each other, these being rotatable about a common axis. This results in a particularly compact construction. It is preferred that at least one angle piece cornprise a shut-off device, in particular, a diaphragm that extends obliquely to both pipe sec~ions of the angle piece, in which contact surfaces of both pipe sections open out.
Another preferred embodiment is such that in one elbow of the outlet pipe there is a through-flow regulator. The through-flow regulator can be configured in various ways, such as an adjuster
WO 93/lg694 PC~ 93/00~56 f~LE~ Pll~l~ r~ r,~ l L.~
FE~ TRANSLA I lui~
A SUCTION-TUBE CONNECTOR FOR USE IN
DENTAL SUCTION UNITS
The present invention relates to a suction-tube connector for dental suction units, this having an in]et pipe that can be connecked to the suction hose, an outlet pipe that can be connected wi-th the suction unit, and with a strainer screen that is located in the flow path between the inlet plpe and the outlet pipe in such a way that i-t can be removed.
A device o~ this kind is described, for example, in EP-A ~90 951.
This incorporates a housing with a cylindrical interior space and an inlet pipe opens out into this on its periphery and, displaced throuyh 90 on the periphery, the outlet pipe branches off upward. The strainer screen is removecl or installed at the face end and has a flat screen that is located between the inlet pipe and the outlet pipe and is connected -through a curved section of wall and a pan that lies beneath the opening of khe inlet pipe.
The screen serves to restrain coarse, solid particles fr`om the substances that are delivered through the suction hose. The inlet pipe comprises an angle piece that is supported in the housing so as to be rotatable to which the suction hose is connected. A flow regulator is incorporated in the outle~ pipe ~ -so as to be rotatable; this incorporates two disks that are connected through a strut that extends across less than half o~
the perlmeter. A disadvantage of this connector is its small mesh surface, which lies essentially perpendicular to the flow and can be plugged relatively easily so that it is necessary to empty and clean it at frequent intervals.
:: ' ~3~33 WO 93/19694 PCT/A~93/00056 It is the task of the present invention to significantly increase the mesh surface and, as far as possible, to avoid the mesh becoming clogged in a suction connector of the type described in the introduction hereto. According to the present invention, this is achieved in that the connector comprises an upper part in which the inlet pipe and the outle-t pipe are located in such a way that no elow can take place between them, and a detachable bottom part that connects the inlet pipe and the outlet pipe so that a flow can take place bet~een them, and in which the strainer screen is located.
since both the inlet pipe and the outlet pipe are on the same side of the connector, the size, configuration, and location of the strainer screen and the bottom part that accommodates it can be much better adapted to the demands imposed upon them. Thus, for example, a preferred embodiment that requires minimal installation space provides that the upper part incorporates connector recesses and rigidi lugs that can be inserted into the recesses, and snap-in spring tabs on the bottom part. If there is sufficient space available, in a second embodiment the bottom part can be arranged like a drawer. It is preferred tha`t a spring clip catch be provided to fix the bottom part in position.
The spring clip can also serve as a grip for the bottom part if it is rotatably supported on the bottom part and snaps behind retaining tabs in the top part. The spring clip can also be hinged onto the top part.
A very large screen surface results if the strainer screen is configured so as to be cup-shaped. In this way, it can approximate the shape of the bottom part and taper conically downwards. A maximal screen surface results if a side wall -that i5 configured as a screen extends bet~een the in-flow and the ~3~633 out-flow opening, this being aligned with the out-flow opening, therefore forming an extension of the outlet plpe. In a preferred embodiment, the st-rainer screen or the mesh surface of each side wall incorporates rods that extend from the top downward, and between which there are slits that widen out downward and to the outside. Thus, for all practical purposes, it is impossible for slits of this kind to be clogged by solid particles since these are moved downward along the widening slits. The strainer Ccreen is intended to trap only coarse particles that collect at the bottom, which is preferably configured so as to be continuous.
Since, as discussed above, both the size of the mesh surface and of the bottom part can be appropriately adapted to the demands placed upon them, a ~urther preferred embodiment is such that in the top part there is a second inlet pipe for connecting an additional suction hose. Because of this, the connector is only required once in a workplace that is normally equipped with two suction hoses of different diameters. In order to stress each suction hose as little as possible at the connection point, it is preferred that provision also be made such that both inl`et pipes are ~ormed by angle pieces that are located opposite each other, these being rotatable about a common axis. This results in a particularly compact construction. It is preferred that at least one angle piece cornprise a shut-off device, in particular, a diaphragm that extends obliquely to both pipe sec~ions of the angle piece, in which contact surfaces of both pipe sections open out.
Another preferred embodiment is such that in one elbow of the outlet pipe there is a through-flow regulator. The through-flow regulator can be configured in various ways, such as an adjuster
2~32633 screw, a choke flap, or the like. One preferred embodiment is such that the through-flow regulator is formed by a stopper that is incorporated in a hranch~of the elbow in such a way as to be adjustable, the inner face surface of this being aligned with the wall of the elbow in c,ne position. If the stopper is moved, this will change the cross-section of the elbow. The adjustment requires no additional space if the stopper is arranged so as to rotate about an axis that is parallel to the axis of the outlet pipe.
The present invention will be described in greater detail below on the basis of the drawings appended hereto, without being restricted to these. These dra~ings show the following:
igure 1: an exploded side view of the connector according to the present invention;
Figure 2: the top part as viewed from below;
Figure 3: a plan view of the top part with the strainer screen;
Figure 4: a side view of a sliyhtly modified second embodiment.
A connector for two suction hoses used in a dental workp`lace has a top part 1 that can be connected to the suction unit, in which two inlet pipes 2 and an outlet pipe 3 are combined. The two inlet pipes 2 are arranged coaxially and opposite each other and in each instance are routed downwards through a curved section 17 where they incorporate in-flow openings 5 that are adjacent to each other in an inclined seating surface 4 of the lower wall of the upper part. The outlet pipe 3 incorporates an elbow 26 that emerges from an out-flow opening 6 that is also located in the inclined screen surface 4 and lies between the two curved sections 17 of the inlet pipes 2. Thus, the upper part is an extre~nely compac-t element. The end of the outlet pipe 3 can be .
~3263~
W0 93/19694 PCT/~T93/00056 continued in any manner, either straight or curved upward or downward. In the embodiment that is shown in figures 1 to 3, on both sides of the incLined seat~ng surface 4, there are cheek pieces 7 and these incorporate support webs 9 that face each other and accommodate the bottom part 18 and retaining tabs 8 that project outwards. In the embodiment shown in figure 4, in order to secure the hottom part 18, on the lower edge of the inclined seating sur~ace 4 there is a bar 29. 'rhere are. recesses both in the bar 29 and in the lower wall of the top part 29 that incorporates the inclined seating surface 4 and the rigid lugs 27 and the spring tabs 2~ o~ the bottom part are inserted into these recesses. Within the elbow 26 of the out~flow pipe 3 there is a through-flow regulator 24. Thi~ consists of a cylindrical stopper that is rotatably supported in a branch of the elbow 26 and an internal curved face surface 25. The curvature corresponds to the inner sur~ace of the elbow 26 that is missing because of the branch, so that tlhen the stopper is in one of its positions it is aligned with the inner surface oF the elbow. In every other position, the stopper extends into the elbow 26 and reduces its cross-section. Angle pieces are inserted into the two inlet pipes ~, and these can be rotated about the co~mon axis 10. In order to save space, however, only one is shown in figure 1 and -~igure 2. The ~uction hoses are connected to the angle pieces and can -thus rc,tate about the axis 10, so that the suction hose can be ter accommoda-te the constant stresses resulting from movement of the hose. The normal position is shown in figure 1, and in this the pipe section 31 to which the suction hose is connected extends down~ard. In figure 2, one of the positions is shown rotated through 90~ for reasons of clarity. Each angle piece incorporates a shut-off de~ice 30, the two pipe sections 31 of the angle piece opening out into a corner chamber 33 in which there is a diaphrag~ 32. In this way, the openings of the two 2~3~33 pipe sections lie on the contact surface of the membrane 32, the pressure on the other side of the membrane 32 being varied in order to operate this. Because of the partial vacuum of the suction unit, the membranes 32 are in the schematically shown closed position when there is normal pressure in the corner chamber 33. In order to open the shut-off device, a partial vacuum is applied to the chamber 33 so that the membrane 32 lifts away from the openings of the pipe sections 31.
The bottom part of the connector is configured as a conlainer and, as shown in figures 1 and 2, has two side pieces 19 that extend parallel to the side cheeks 7. As is shown in figure 1, the bottom part can he slid in and out in the manner of a drawer, when the side pieces 19 are guided by the support webs 9 that fit underneath them [?]. On the bottom part 18 there are two pins 20 on which the side arms 22 o~ a spring clip are installed. These side arms 22 incorporate recesses 23, so that the side arms 22 of the retaining tabs 8 slip behind them. The different curvatures of the retaining tabs 8 and the limits of the recesses 23 exert a tensile force in the inward direction so that the inclined surEace 21 of the upper edge of the bottom part is press`ed ayainst the inclined seating surface 4 of the upper part so as to form a seal.
In the embodiment that is shown in figure 4, the spring tabs 28 extend vertically upward and fit behind recesses in the lower wall of the bottom part 1 that extends to the side in such a way as be releasable.
A strainer screen 11 is arranged in the bottom part 18 and this is figured in an apprGximately conical cup shape. It has side walls 13 that form screen surfaces by rods 14 and slits 16 that 2~32~3 WO 93~19694 PCT/P.T93/00056 extend downward; the slits 16 widen out downward and to the outside in order to prevent clogging. As is shown, the rods 14 can optionally taper downwards. Three side walls 13 are flat and the fourth side wall is curved, the curved side wall 13 enclosing an out-flow pipe section 12 that is sealed to the out-flow opening 6 in the inclined seating surface 4 and aligned with it and which is appropriately inclined a~ the top, thereby extending the outlet pipe 3 to a point close to the bottom of the bottom part 18. Since the suction flow thus moves from the top downward, fine particles that could clog the slits are moved downward to the poin~ that they can pass these. The cup~shaped bottom part is thereby always sucked dry, for all practical purposes, and contains no water. This is important, in particular, when the bottom part is detached in order to remove the strainer screen. Because of the curved side wall 13, the strainer screen 11 has the greatest possible retaining potential as well as a maximal strainer surface. The bottom 15 o the strainer screen ll is configured so as to be continuous.
The present invention will be described in greater detail below on the basis of the drawings appended hereto, without being restricted to these. These dra~ings show the following:
igure 1: an exploded side view of the connector according to the present invention;
Figure 2: the top part as viewed from below;
Figure 3: a plan view of the top part with the strainer screen;
Figure 4: a side view of a sliyhtly modified second embodiment.
A connector for two suction hoses used in a dental workp`lace has a top part 1 that can be connected to the suction unit, in which two inlet pipes 2 and an outlet pipe 3 are combined. The two inlet pipes 2 are arranged coaxially and opposite each other and in each instance are routed downwards through a curved section 17 where they incorporate in-flow openings 5 that are adjacent to each other in an inclined seating surface 4 of the lower wall of the upper part. The outlet pipe 3 incorporates an elbow 26 that emerges from an out-flow opening 6 that is also located in the inclined screen surface 4 and lies between the two curved sections 17 of the inlet pipes 2. Thus, the upper part is an extre~nely compac-t element. The end of the outlet pipe 3 can be .
~3263~
W0 93/19694 PCT/~T93/00056 continued in any manner, either straight or curved upward or downward. In the embodiment that is shown in figures 1 to 3, on both sides of the incLined seat~ng surface 4, there are cheek pieces 7 and these incorporate support webs 9 that face each other and accommodate the bottom part 18 and retaining tabs 8 that project outwards. In the embodiment shown in figure 4, in order to secure the hottom part 18, on the lower edge of the inclined seating sur~ace 4 there is a bar 29. 'rhere are. recesses both in the bar 29 and in the lower wall of the top part 29 that incorporates the inclined seating surface 4 and the rigid lugs 27 and the spring tabs 2~ o~ the bottom part are inserted into these recesses. Within the elbow 26 of the out~flow pipe 3 there is a through-flow regulator 24. Thi~ consists of a cylindrical stopper that is rotatably supported in a branch of the elbow 26 and an internal curved face surface 25. The curvature corresponds to the inner sur~ace of the elbow 26 that is missing because of the branch, so that tlhen the stopper is in one of its positions it is aligned with the inner surface oF the elbow. In every other position, the stopper extends into the elbow 26 and reduces its cross-section. Angle pieces are inserted into the two inlet pipes ~, and these can be rotated about the co~mon axis 10. In order to save space, however, only one is shown in figure 1 and -~igure 2. The ~uction hoses are connected to the angle pieces and can -thus rc,tate about the axis 10, so that the suction hose can be ter accommoda-te the constant stresses resulting from movement of the hose. The normal position is shown in figure 1, and in this the pipe section 31 to which the suction hose is connected extends down~ard. In figure 2, one of the positions is shown rotated through 90~ for reasons of clarity. Each angle piece incorporates a shut-off de~ice 30, the two pipe sections 31 of the angle piece opening out into a corner chamber 33 in which there is a diaphrag~ 32. In this way, the openings of the two 2~3~33 pipe sections lie on the contact surface of the membrane 32, the pressure on the other side of the membrane 32 being varied in order to operate this. Because of the partial vacuum of the suction unit, the membranes 32 are in the schematically shown closed position when there is normal pressure in the corner chamber 33. In order to open the shut-off device, a partial vacuum is applied to the chamber 33 so that the membrane 32 lifts away from the openings of the pipe sections 31.
The bottom part of the connector is configured as a conlainer and, as shown in figures 1 and 2, has two side pieces 19 that extend parallel to the side cheeks 7. As is shown in figure 1, the bottom part can he slid in and out in the manner of a drawer, when the side pieces 19 are guided by the support webs 9 that fit underneath them [?]. On the bottom part 18 there are two pins 20 on which the side arms 22 o~ a spring clip are installed. These side arms 22 incorporate recesses 23, so that the side arms 22 of the retaining tabs 8 slip behind them. The different curvatures of the retaining tabs 8 and the limits of the recesses 23 exert a tensile force in the inward direction so that the inclined surEace 21 of the upper edge of the bottom part is press`ed ayainst the inclined seating surface 4 of the upper part so as to form a seal.
In the embodiment that is shown in figure 4, the spring tabs 28 extend vertically upward and fit behind recesses in the lower wall of the bottom part 1 that extends to the side in such a way as be releasable.
A strainer screen 11 is arranged in the bottom part 18 and this is figured in an apprGximately conical cup shape. It has side walls 13 that form screen surfaces by rods 14 and slits 16 that 2~32~3 WO 93~19694 PCT/P.T93/00056 extend downward; the slits 16 widen out downward and to the outside in order to prevent clogging. As is shown, the rods 14 can optionally taper downwards. Three side walls 13 are flat and the fourth side wall is curved, the curved side wall 13 enclosing an out-flow pipe section 12 that is sealed to the out-flow opening 6 in the inclined seating surface 4 and aligned with it and which is appropriately inclined a~ the top, thereby extending the outlet pipe 3 to a point close to the bottom of the bottom part 18. Since the suction flow thus moves from the top downward, fine particles that could clog the slits are moved downward to the poin~ that they can pass these. The cup~shaped bottom part is thereby always sucked dry, for all practical purposes, and contains no water. This is important, in particular, when the bottom part is detached in order to remove the strainer screen. Because of the curved side wall 13, the strainer screen 11 has the greatest possible retaining potential as well as a maximal strainer surface. The bottom 15 o the strainer screen ll is configured so as to be continuous.
Claims (14)
PATENT CLAIMS
The embodiments of the invention in which an exclusive right or privilege is claimed are defined as follows:
1. A suction hose connector for dental suction units, with a an upper part (1) in which an inlet pipe (2) that can be connected to the suction hose, and an outlet pipe (3) that can be connected to the suction unit are arranged so as not to permit a flow, with a removable bottom part (18) that connects the inlet pipe (2) to the outlet pipe (3) so as to permit a flow, with a strainer screen (11) that is located in the flow path between the inlet pipe (2) and the outlet pipe (3), characterized in that the strainer screen (11) is configured in the shape of a cup and arranged in the bottom part (18) so as to be removable; and in that a side wall (13) of the strainer screen extends between the inflow opening (5) and the outflow opening (6) and incorporates rods (14) that extend downward from above, and between which there are slits (16) that widen out downward and preferably to the outside.
2. A suction hose connector as defined in claim 1, characterized in that the strainer screen (11) tapers downward.
3. A suction hose connector as defined in claim 1 or claim 2, characterized in that the bottom (15) of the strainer screen (11) is continuous.
4. A suction connector as defined in one of the claims 1 to 3, characterized in that the top part (1) incorporates connector recesses, fixed lugs and snap-in spring tabs that can be inserted into these recesses being provided on the bottom part (18).
5. A suction hose connector as defined in one of the claims 1 to 4, characterized in that the bottom part (18) can be withdrawn in the manner of a drawer.
6. A suction hose connector as defined in claim 4 or claim 5, characterized in that a spring clip catch is formed between the upper part (1) and the lower part (18).
7. A suction hose connector as defined in claim 6, characterized in that the spring clip is supported on the bottom part (18) so as to be able to pivot and is swung in behind the retaining lugs (8) of the upper part (1).
8. A suction hose connector as defined in one of the claims 1 to 7, characterized in that a through-flow regulator (24) is arranged in an elbow (26) of the outlet pipe (3).
9. A suction hose connector as defined in claim 8, characterized in that the through-flow regulator (24) is formed from a stopper that is adjustably supported in a branch of the elbow (26), the inner face surface (25) of this stopper being flush with the wall of the elbow in one position.
10. A suction hose connector as defined in claim 9, characterized in that the plug is arranged so as to be rotatable about an axis that is parallel to the axis of the outlet pipe (3).
11. A suction hose connector as defined in one of the claims 1 to 10, characterized in that within the upper part (1) there is a second inlet pipe (2) to connect an additional suction hose.
12. A suction hose connector as defined in claim 11, characterized in that both inlet pipes (2) are formed by angle pieces that are arranged opposite each other and can rotate about a common axis (10).
13. A suction hose connector as defined in claim 12, characterized in that at least one angle piece contains a shut-off device (30).
14. A suction hose connector as defined in claim 13, characterized in that the shut-off device (30) incorporates a diaphragm (32) that extends obliquely to both pipe sections (31) of the angle piece, both pipe sections (31) opening out into the contact surface of this.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA675/92 | 1992-04-02 | ||
| AT67592 | 1992-04-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2132633A1 true CA2132633A1 (en) | 1993-10-03 |
Family
ID=3496870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002132633A Abandoned CA2132633A1 (en) | 1992-04-02 | 1993-03-30 | A suction-tube connector for use in dental suction units |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0680288A1 (en) |
| JP (1) | JPH07506019A (en) |
| AU (1) | AU3738693A (en) |
| CA (1) | CA2132633A1 (en) |
| WO (1) | WO1993019694A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107334554A (en) * | 2017-08-30 | 2017-11-10 | 薛海丽 | Clinic cleaning oral appliance |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2713320A1 (en) * | 1977-03-25 | 1978-09-28 | Duerr Dental Kg | DEVICE IN DENTAL SUCTION SYSTEMS FOR CONNECTING AND HOLDING SUCTION NOZZLE HOSES AND / OR FOR FILTERING |
| US4385891A (en) * | 1981-04-09 | 1983-05-31 | Ligotti Eugene F | Dental apparatus for preventing loss of precious metal particles |
| DK156880C (en) * | 1982-02-05 | 1990-03-12 | Horn Lassen Hans | APPARATUS FOR SEPARATION OF WASTE MATERIALS FROM A CURRENT OF LIQUID AND GAS |
| AT382508B (en) * | 1985-09-12 | 1987-03-10 | Chirana Zavody Zdravotnicke | DENTAL RECEIVER FOR PRECIOUS METALS |
| EP0355467B1 (en) * | 1988-08-10 | 1991-12-27 | Siemens Aktiengesellschaft | Dental sucking device with controllable suction power |
| DE58904845D1 (en) * | 1989-04-06 | 1993-08-05 | Siemens Ag | DENTAL SUCTION HANDPIECE. |
-
1993
- 1993-03-30 WO PCT/AT1993/000056 patent/WO1993019694A1/en not_active Application Discontinuation
- 1993-03-30 AU AU37386/93A patent/AU3738693A/en not_active Abandoned
- 1993-03-30 EP EP93906363A patent/EP0680288A1/en not_active Withdrawn
- 1993-03-30 JP JP5516887A patent/JPH07506019A/en active Pending
- 1993-03-30 CA CA002132633A patent/CA2132633A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107334554A (en) * | 2017-08-30 | 2017-11-10 | 薛海丽 | Clinic cleaning oral appliance |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07506019A (en) | 1995-07-06 |
| EP0680288A1 (en) | 1995-11-08 |
| WO1993019694A1 (en) | 1993-10-14 |
| AU3738693A (en) | 1993-11-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |