Patent US4145775A successfully refreshed from Google Patents.
US4145775A
Expired / Lapsed
US
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Water saving device for water closet
Assignee: American Water Engineering Inc
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Filing: 1978-01-16
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Granted: 1979-03-27
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Expires: 1998-01-16
Abstract
Abstract A water saving device is provided in the form of a flow control valve, which may be installed in the refill tube for the toilet bowl of a water closet, and which may be adjusted to establish the proper amount of refill water to flow into the toilet bowl after each flush, so as to avoid wastage. The device, in one of its embodiments, may be installed in the refill tube of an existing water closet. The device can also be mounted directly on the main toilet valve unit as a built-in item for newly manufactured toilets.
Inventors
- 👤 James L. Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:05
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/02; E03D1/14; E03D1/142; Y; Y02; Y02A; Y02A20/00; Y02A20/40; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7439; Y10T137/7462
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
134 words
In a water closet including a toilet bowl, and a toilet tank for supplying flush water to the bowl said tank having outlet means including a tubular conduit for supplying refill water to the bowl after each flush, an adjustable valve interposed in said conduit for controlling the amount of refill water supplied to said outlet means after each flush, said adjustable valve including a first housing member and a second housing member rotatable with respect to one another, one of the housing members having an intermediate wall with an aperture therein, and the other housing member having an intermediate wall with a tapered slot therein positioned relative to the aperture so that the flow of water through the valve is dependent upon the relative angular positions of the first and second housing members.
Claim 2
Dependent Claim
134 words
In a water closet including a toilet bowl, and a toilet tank for supplying flush water to the bowl said tank having outlet means including a tubular conduit for supplying refill water to the bowl after each flush, an adjustable valve interposed in said conduit for controlling the amount of refill water supplied to said outlet means after each flush, said adjustable valve including a first housing member and a second housing member rotatable with respect to one another, one of the housing members having an intermediate wall with an aperture therein, and the other housing member having an intermediate wall with a tapered slot therein positioned relative to the aperture so that the flow of water through the valve is dependent upon the relative angular positions of the first and second housing members.
Claim 3
Dependent Claim
29 words
In the water closet defined in claim 1, and in which the housing members are formed of plastic material and are mounted in snap fit relationship with one another.
References Cited (Backward Citations)
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Cited
US3086546A
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US3562782A
Cited
US3744064A
Cited
US3799132A
Cited
US3902201A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-03-26 | 1982-09-25 | 1983-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-26 | 1986-09-25 | 1987-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-26 | 1990-09-25 | 1991-03-27 | $7700.00 | Window Closed / Lapsed |