US3668718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drain connection
Assignee: Individual
•
Filing: 1970-08-24
•
Granted: 1972-06-13
•
Expires: 1990-08-24
Abstract
Abstract A drain for showers or the like which eliminates the need for conventional caulking materials. An internally and externally threaded member found in most drains is modified adjacent its lower internal end, and between such member and a drain pipe there is provided a specially designed gasket. The internal threads of the member adjacent its upper end receive a nut, the latter bearing on the upper end of the gasket, urging the latter into sealing engagement between the pipe and drain member.
Inventors
- 👤 Casper Cuschera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:29
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/26
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
133 words
A drain connection for a vertical pipe comprising a fitting having a generally cylindrical body with inner and outer surfaces internally and externally threaded, respectively, and with an outwardly directed peripheral flange at the upper end thereof, said internal threads being in annular spaced relation to said pipe, said fitting having an inwardly directed portion adjacent the lower end thereof, a resilient annular gasket interposed between said fitting and said pipe and engageable with said inwardly directed fitting portion, said gasket having its upper portion terminating below at least the upper portion of said fitting threads, and an externally threaded nut engageable with said fitting internal threads and having a lower end portion engageable with the upper end portion of said gasket for urging the gasket downwardly towards said inwardly directed fitting portion.
Claim 2
Dependent Claim
133 words
A drain connection for a vertical pipe comprising a fitting having a generally cylindrical body with inner and outer surfaces internally and externally threaded, respectively, and with an outwardly directed peripheral flange at the upper end thereof, said internal threads being in annular spaced relation to said pipe, said fitting having an inwardly directed portion adjacent the lower end thereof, a resilient annular gasket interposed between said fitting and said pipe and engageable with said inwardly directed fitting portion, said gasket having its upper portion terminating below at least the upper portion of said fitting threads, and an externally threaded nut engageable with said fitting internal threads and having a lower end portion engageable with the upper end portion of said gasket for urging the gasket downwardly towards said inwardly directed fitting portion.
Claim 3
Dependent Claim
23 words
A connection as set forth in claim 1 in which the inner surface of said gasket is provided with radially inwardly directed ribs.
Claim 4
Dependent Claim
30 words
A connection as set forth in claim 1 in which said inwardly directed fitting portion includes a tAper terminating in a radially inwardly directed flange at the lower end thereof.
Claim 5
Dependent Claim
24 words
A connection as set forth in claim 1 in which the outer surface of said gasket has a lower portion tapering downwardly and inwardly.
Claim 6
Dependent Claim
26 words
A connection as set forth in claim 1 in which said lower end portion of said nut is provided with an inwardly and upwardly directed taper.
Claim 7
Dependent Claim
26 words
A connection as set forth in claim 5 in which said upper end portion of said gasket is provided with a downwardly and outwardly directed taper.
Claim 8
Dependent Claim
52 words
A connection as set forth in claim 1 in which a seal is provided between the upper end of said pipe and said nut, said seal having an annular portion overlying the upper end of said pipe, and an external skirt positioned between the exterior surface of said pipe and said nut.
References Cited (Backward Citations)
US956314A
Cited
US922471A
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US1217965A
Cited
US1505683A
Cited
FR770504A
Cited
US2197874A
Cited
US2908513A
Cited
US3012252A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |