Patent US3896511A successfully refreshed from Google Patents.
US3896511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-caulking drain
Assignee: Individual
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Filing: 1973-10-17
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Granted: 1975-07-29
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Expires: 1993-10-17
Abstract
Abstract A drain for showers or the like which eliminates the need for conventional caulking materials includes a hollow cyindrical fitting with a flanged lower opening which receives a waste water pipe. Disposed within the fitting and exterior to the portion of waste water pipe received therein is a resilient gasket which has a plurality of spaced annular ribs adjacent the water pipe. The gasket includes an annular groove in its top surface which receives a split snap ring. The snap ring, which is retained by an annular groove in the interior surface of the fitting, causes the gasket to expand and form a tight seal between the waste pipe and the fitting, preventing any waste water leakage.
Inventors
- 👤 Casper Cuschera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:25
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/22
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
137 words
A drain connection for a pipe, comprising: a fitting adapted to receive a pipe therethrough, said fitting providing an annular cavity between the interior of said fitting and exterior of the portion of said pipe received therein; a resilient gasket of hollow, sleevelike configuration received within said annular cavity and about said portion of said pipe, said gasket including a first annular groove extending axially in one end thereof; ring means including a second annular groove for forcibly engaging said first annular groove and expanding said gasket to form a watertight seal between said pipe and said fitting; and retaining means disposed in said fitting for retaining said ring means in engagement with said first annular groove, said ring means including a ring having a flange for snapping engaging said second annular groove and being retained thereby.
Claim 2
Dependent Claim
137 words
A drain connection for a pipe, comprising: a fitting adapted to receive a pipe therethrough, said fitting providing an annular cavity between the interior of said fitting and exterior of the portion of said pipe received therein; a resilient gasket of hollow, sleevelike configuration received within said annular cavity and about said portion of said pipe, said gasket including a first annular groove extending axially in one end thereof; ring means including a second annular groove for forcibly engaging said first annular groove and expanding said gasket to form a watertight seal between said pipe and said fitting; and retaining means disposed in said fitting for retaining said ring means in engagement with said first annular groove, said ring means including a ring having a flange for snapping engaging said second annular groove and being retained thereby.
Claim 3
Dependent Claim
31 words
The drain connection of claim 1, wherein said ring is split in an axial plane, and includes a wedgeshaped annulus at one end thereof for forcibly engaging said first annular groove.
Claim 4
Dependent Claim
58 words
The drain connection of clAim 1, wherein said fitting comprises a generally cylindrical hollow body having a radially inwardly directed flange at one end defining an axial opening for receiving said portion of said pipe, and said ring means comprises a split ring having a peripheral flange for snappingly engaging said second annular groove and being retained thereby.
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) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |