Patent US3943577A successfully refreshed from Google Patents.
US3943577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toilet tank flush control
Assignee: Individual
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Filing: 1975-04-17
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Granted: 1976-03-16
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Expires: 1995-04-17
Abstract
Abstract A toilet tank flush valve provides for an auxiliary light flush without requiring any modification of the tank construction. A framework is adapted to be seated at the top of the flush tank. This framework also receives the flush tank lid. An auxiliary flush handle traverses the framework and is disposed on the outside of the tank for operation by a user. Linkage couples the auxiliary handle with the flush valve and operation of the handle actuates the auxiliary flush. The auxiliary flush is designed to allow only a relatively small volume of water flow through the tank.
Inventors
- 👤 Homer H. Woolf
- 👤 Lucille M. Woolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:20
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/02; E03D1/14; E03D1/142
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
132 words
For use with a toilet tank having a flush box, a lid closing said box, an outlet communicating the flush box with the toilet; a valve normally closing said outlet and movable to an open position to allow the passage of water through the outlet; and means for opening and closing said valve; the improvement comprising: a framework adapted to be seated on said box at the upper periphery thereof, said framework being adapted to receive said lid and hold the latter on the box to close the latter; handle means traversing the framework and projecting on the outside of the flush box; and means adapted for coupling said handle means with said valve whereby movement of the handle means opens the valve to allow the passage of water through said outlet.
Claim 2
Dependent Claim
132 words
For use with a toilet tank having a flush box, a lid closing said box, an outlet communicating the flush box with the toilet; a valve normally closing said outlet and movable to an open position to allow the passage of water through the outlet; and means for opening and closing said valve; the improvement comprising: a framework adapted to be seated on said box at the upper periphery thereof, said framework being adapted to receive said lid and hold the latter on the box to close the latter; handle means traversing the framework and projecting on the outside of the flush box; and means adapted for coupling said handle means with said valve whereby movement of the handle means opens the valve to allow the passage of water through said outlet.
Claim 3
Dependent Claim
22 words
The invention of claim 1, wherein said framework is characterized by a peripheral configuration complemental to the configuration of said flush box.
Claim 4
Dependent Claim
51 words
The invention of claim 1, wherein said valve is characterized by construction from a flexible material and said means coupling the handle means with the valve comprises linkage coupled with said valve at one side of the latter for exerting a force tending to cant said valve relative to said outlet.
Claim 5
Dependent Claim
40 words
The invention of claim 1, wherein said coupling means comprises a shaft extending from said handle means to at least a point over said valve and flexible linkage extending downwardly from the shaft to couple the valve with the shaft.
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) | 1979-03-16 | 1979-09-15 | 1980-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-16 | 1983-09-15 | 1984-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-16 | 1987-09-15 | 1988-03-16 | $7700.00 | Window Closed / Lapsed |