US4667987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for connecting pipes with fittings
Assignee: Knebel and Rottger GmbH and Co
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Filing: 1986-01-09
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Granted: 1987-05-26
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Expires: 2006-01-09
Abstract
Abstract A device for connecting pipes with fittings or fixtures for mixing fluids for use in cleaning, washing and rinsing basins, sinks or the like wherein the fitting has a casing supported over an opening of the washing basin or the like by clamping means capable of being tightened against the underside of a washing table top or the like and water-conducting pipes extending through said opening, the pipes being constructed as connecting conduits capable of being plugged into the pipes and having a collar extending around the conduits at least near their ends to be plugged, and being secured in position by a molded part which can be supported on the casing of the fitting and a clamping device acting on said molded part, so as to be able to dispense with additional sealing elements within the zone of connection of the pipes, the pipes being composed of plastic material with thickened collars molded therearound and having toward the free end of the pipe a sealing surface capable of being clamped against a sealing seat of the casing of the fitting.
Inventors
- 👤 Werner Knebel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:16
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/02; E03C1/04; E03C1/0403
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
157 words
A device for connecting pipes with fittings or fixtures for mixing fluids for use in washing and rinsing basins, sinks or the like, comprising a fitting having a casing supported over an opening of the washing basin or the like, support means on the underside of said basin or sink, conducting ducts extending through said opening, the pipes being constructed as connecting conduits capable of being plugged into said ducts, each of said connecting conduits having a collar extending therearound adjacent its end which is to be plugged in and secured in position by means of a molded part supportable on the casing of the fixture and by a clamping device acting on said molded part, the pipes being composed of plastic material and the collars being relatively massive molded parts located toward the free end of the pipes and a sealing surface capable of being clamped against a sealing seat of the casing of the fixture.
Claim 2
Independent Claim
157 words
A device for connecting pipes with fittings or fixtures for mixing fluids for use in washing and rinsing basins, sinks or the like, comprising a fitting having a casing supported over an opening of the washing basin or the like, support means on the underside of said basin or sink, conducting ducts extending through said opening, the pipes being constructed as connecting conduits capable of being plugged into said ducts, each of said connecting conduits having a collar extending therearound adjacent its end which is to be plugged in and secured in position by means of a molded part supportable on the casing of the fixture and by a clamping device acting on said molded part, the pipes being composed of plastic material and the collars being relatively massive molded parts located toward the free end of the pipes and a sealing surface capable of being clamped against a sealing seat of the casing of the fixture.
Claim 3
Dependent Claim
16 words
A device according to claim 1, wherein each collar and pipe is formed in one piece.
Claim 4
Dependent Claim
19 words
A device according to claim 1, wherein the pipes are arranged parallel to each other with a common collar.
Claim 5
Dependent Claim
28 words
A device according to claim 1, wherein the clamping device consists of a screw ring which forces the pipe collar against the corresponding fixture surface of the casing.
Claim 6
Dependent Claim
38 words
A device according to claim 4, wherein the collars terminate in a conical tapering toward the plugging end of the pipes, and the corresponding plug openings of the casing of the fixture have complementary conical sealing seat surfaces.
Claim 7
Dependent Claim
34 words
A device according to claim 1, wherein the collars have a rectangularly profiled cross-section and are capable of being placed against a plane surface surrounding each plug opening of the casing of the fixture.
Claim 8
Dependent Claim
36 words
A device according to claim 1, wherein the clamping device is a screw ring capable of being screwed together with the plugging end of the casing of the fixture, said plugging end being a threaded socket.
Claim 9
Dependent Claim
15 words
A device according to claim 7, wherein the screw ring is a threaded screw cap.
Claim 10
Dependent Claim
32 words
A device according to claim 1, wherein a pre-curved intermediate disk is disposed between the clamping device and the collars of the pipes, said disk having holes through which the pipes extend.
Claim 11
Dependent Claim
27 words
A device according to claim 9, wherein a seal is disposed between the collar and the part of the casing against which said collar can be placed.
References Cited (Backward Citations)
US3125361A
Cited
AU124826A
Cited
US3590855A
Cited
US4062571A
Cited
US4319772A
Cited
US4294473A
Cited
US4382618A
Cited
US4544185A
Cited
US4584723A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-25 | 1990-11-24 | 1991-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-25 | 1994-11-24 | 1995-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-25 | 1998-11-24 | 1999-05-26 | $7700.00 | Window Closed / Lapsed |