US3747893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid coupling with sink retainer
Assignee: Westinghouse Electric Corp
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Filing: 1972-01-17
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Granted: 1973-07-24
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Expires: 1992-01-17
Abstract
Abstract A metal fitting particularly adaptable for use with a dishwasher water supply valve of the character having a plastic body is disclosed, in which the fitting includes a coupling ring which may be turned onto the inlet end of the supply valve, and includes a tubular body carrying the coupling ring and having an outwardly projecting plate at its inlet end serving as both a heat sink for heat applied upstream from the fitting on the metal water supply conduit, and retaining the coupling ring from disengagement off the inlet end of the fitting.
Inventors
- 👤 O Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:31
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/42; A47L15/4214; A47L15/4217; Y; Y10; Y10T; Y10T137/00; Y10T137/9029
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
191 words
In a dishwasher water supply system, the combination comprising: a water supply inlet valve having a plastic valve body including an integrally-molded, male supply inlet for said body; and a metal fitting for making a connection between said valve inlet and a metal supply conduit, said fitting including a tubular body having outwardly-directed flange means to retain, in rotatable relation on said tubular body outlet end, an interiorly-threaded coupling ring having inwardly-directed flange means at its inlet end for engagement with said outwardly-directed flange means of said tubular body, said coupling ring having a sealing washer therein, and being adapted to be turned onto said male supply inlet, said tubular body being threaded for at least a portion of its length at its inlet end, said fitting including outwardly-projecting means integral with said tubular body and spaced toward the inlet end of said tubular body from said outwardly-directed flange means to serve as a heat sink for any heat-applied bonding operation performed on said metal supply conduit, and said outwardly-projecting means has a perimeter of non-circular form to accommodate gripping said body with a tool to control rotation of said body.
Claim 2
Dependent Claim
191 words
In a dishwasher water supply system, the combination comprising: a water supply inlet valve having a plastic valve body including an integrally-molded, male supply inlet for said body; and a metal fitting for making a connection between said valve inlet and a metal supply conduit, said fitting including a tubular body having outwardly-directed flange means to retain, in rotatable relation on said tubular body outlet end, an interiorly-threaded coupling ring having inwardly-directed flange means at its inlet end for engagement with said outwardly-directed flange means of said tubular body, said coupling ring having a sealing washer therein, and being adapted to be turned onto said male supply inlet, said tubular body being threaded for at least a portion of its length at its inlet end, said fitting including outwardly-projecting means integral with said tubular body and spaced toward the inlet end of said tubular body from said outwardly-directed flange means to serve as a heat sink for any heat-applied bonding operation performed on said metal supply conduit, and said outwardly-projecting means has a perimeter of non-circular form to accommodate gripping said body with a tool to control rotation of said body.
Claim 3
Dependent Claim
16 words
In the combination of claim 1: said tubular body is interiorly threaded at its inlet end.
Claim 4
Dependent Claim
20 words
In the combination of claim 1: said outwardly-projecting means is disposed at the extreme inlet end of said tubular body.
Claim 5
Dependent Claim
198 words
For a dishwasher water supply system, a metal fitting for application to a plastic dishwasher supply valve having an integral threaded male supply inlet, said metal fitting comprising: a tubular body having outwardly-directed flange means to retain, in rotatable relation on said tubular body outlet end, an interiorly-threaded coupling ring having inwardly-directed flange means at its inlet end for engagement with said outwardly-directed flange means to prevent said coupling ring from being disengaged from said tubular body off the outlet end thereof; said tubular body being threaded for at least a portion of its length at its inlet end; said fitting including outwardly-projecting means integral with said tubular body, spaced toward the inlet end of said tubular body from said outwardly-directed flange means, to serve as a heat sink for any heat-applied bonding operation performed upstream from said fitting and also to serve to retain said ring from disengagement off the inlet end of said body, said tubular body is interiorly-threaded at its inlet end; and said outwardly-projecting means is located at the extreme inlet end of said body and is of non-circular perimeter to accommodate application of a tool thereto to hold said tubular body against rotation.
Claim 6
Dependent Claim
198 words
For a dishwasher water supply system, a metal fitting for application to a plastic dishwasher supply valve having an integral threaded male supply inlet, said metal fitting comprising: a tubular body having outwardly-directed flange means to retain, in rotatable relation on said tubular body outlet end, an interiorly-threaded coupling ring having inwardly-directed flange means at its inlet end for engagement with said outwardly-directed flange means to prevent said coupling ring from being disengaged from said tubular body off the outlet end thereof; said tubular body being threaded for at least a portion of its length at its inlet end; said fitting including outwardly-projecting means integral with said tubular body, spaced toward the inlet end of said tubular body from said outwardly-directed flange means, to serve as a heat sink for any heat-applied bonding operation performed upstream from said fitting and also to serve to retain said ring from disengagement off the inlet end of said body, said tubular body is interiorly-threaded at its inlet end; and said outwardly-projecting means is located at the extreme inlet end of said body and is of non-circular perimeter to accommodate application of a tool thereto to hold said tubular body against rotation.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |