US3911504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toilet flush tank apparatus
Assignee: MOEN INCORPORATED A CORP. OF DELAWARE
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Filing: 1974-05-31
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Granted: 1975-10-14
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Expires: 1994-05-31
Abstract
Abstract An improved overflow tube in a toilet tank for use in conjunction with a flexible refill tube that extends from a ball cock mounted in the toilet tank. The improved overflow tube is a plastic extrudate that has two radially inwardly extending flanges into which the end of the flexible refill tube can be fitted so as to obviate the need for a conventional spring or plastic clip to hold the end of the refill tube in place within the overflow tube.
Inventors
- 👤 George Koket
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:20
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/30
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
170 words
In a toilet flush tank in which are mounted (1) a ball cock that is in communication with a source of water and (2) an outlet valve and an associated upright overflow tube that are in communication with the toilet flush tank outlet for discharge of water to a toilet bowl, said ball cock having an outlet fitting for supplying refill water to the toilet bowl subsequent to a flush of the toilet, the improvement comprising said overflow tube being an extrudate of thermoplastic material having a uniform cross-section throughout its length and including two integral flanges radially inwardly directed from the inner wall of the tube the full length thereof, said flanges being adjacent to one another to provide a relatively restricted longitudinal passageway the length of the tube, and a flexible refill tube connected at one end to said outlet fitting and having its other end retained within the confines of the upper portions of said radially inwardly directed flanges and the inner wall of said overflow tube.
Claim 2
Dependent Claim
170 words
In a toilet flush tank in which are mounted (1) a ball cock that is in communication with a source of water and (2) an outlet valve and an associated upright overflow tube that are in communication with the toilet flush tank outlet for discharge of water to a toilet bowl, said ball cock having an outlet fitting for supplying refill water to the toilet bowl subsequent to a flush of the toilet, the improvement comprising said overflow tube being an extrudate of thermoplastic material having a uniform cross-section throughout its length and including two integral flanges radially inwardly directed from the inner wall of the tube the full length thereof, said flanges being adjacent to one another to provide a relatively restricted longitudinal passageway the length of the tube, and a flexible refill tube connected at one end to said outlet fitting and having its other end retained within the confines of the upper portions of said radially inwardly directed flanges and the inner wall of said overflow tube.
Claim 3
Dependent Claim
54 words
The improvement that is defined in claim 1, wherein said flexible refill tube has resilient properties so that it can readily be deformed out-of-round at said other end for insertion within said confines, and its resilient properties will enable said other end to return toward its round configuration for frictional retention within said confines.
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) | 1978-10-13 | 1979-04-14 | 1979-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-13 | 1983-04-14 | 1983-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-13 | 1987-04-14 | 1987-10-14 | $7700.00 | Window Closed / Lapsed |