US3702012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toilet tank flush valves
Assignee: Individual
•
Filing: 1971-07-23
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Granted: 1972-11-07
•
Expires: 1991-07-23
Abstract
Abstract A flat sheet of flexible material of uniform thickness provided adjacent its forward extremity with an opening adapted to fit about the overflow pipe of a conventional toilet tank and provided adjacent its rear extremity with a circular disc adapted to fold down upon the flush valve fitting of the tank. An openbottomed float bulb is formed on the lower surface of the disc so as to enter and close the fitting to retain water in the tank. When the disc is lifted, the bulb will buoyantly arise in the tank to open the fitting to flush the tank.
Inventors
- 👤 Samuel M Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:50
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/30; E03D1/34
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
191 words
In a toilet tank flush valve of the type having a normally flat sheet of flexible material of substantially uniform thickness over its entire area, the sheet being shaped to provide a floatable, liftable disc which is adaptable to be positioned over the flush valve fitting of a conventional toilet tank, means for operatively connecting said disc to the overflow pipe of said tank comprising: a. a first arcuate elastic gripping portion formed in said sheet; b. a second arcuate elastic gripping portion, of similar radius to the first portion, formed in said sheet; c. joining means connecting the extremities of the first arcuate portion to the extremities of the second arcuate portion so as to form a circular enclosure adapted to surround and grip said overflow pipe; and d. means flexibly connecting said enclosure to the floatable liftable disc, said connecting means comprising an elongated leg portion formed in said sheet and extending forwardly from each side of said disc the leg portions terminating forwardly of, and on each side of said circular enclosure; and means interconnecting the forward extremities of said leg portions to opposite sides of said enclosure.
Claim 2
Dependent Claim
191 words
In a toilet tank flush valve of the type having a normally flat sheet of flexible material of substantially uniform thickness over its entire area, the sheet being shaped to provide a floatable, liftable disc which is adaptable to be positioned over the flush valve fitting of a conventional toilet tank, means for operatively connecting said disc to the overflow pipe of said tank comprising: a. a first arcuate elastic gripping portion formed in said sheet; b. a second arcuate elastic gripping portion, of similar radius to the first portion, formed in said sheet; c. joining means connecting the extremities of the first arcuate portion to the extremities of the second arcuate portion so as to form a circular enclosure adapted to surround and grip said overflow pipe; and d. means flexibly connecting said enclosure to the floatable liftable disc, said connecting means comprising an elongated leg portion formed in said sheet and extending forwardly from each side of said disc the leg portions terminating forwardly of, and on each side of said circular enclosure; and means interconnecting the forward extremities of said leg portions to opposite sides of said enclosure.
Claim 3
Dependent Claim
74 words
A toilet flush valve as described in claim 1 in which the means connecting the forward extremities of said leg portions to opposite sides of said enclosure comprise: a. an end portion unitarily formed on the forward extremity of each leg portion, said end portions extending inwardly toward each other at each side of and forwardly of said enclosure; and b. means interconnecting the inwardly extending extremities of said end portions to said enclosure.
Claim 4
Dependent Claim
73 words
A toilet flush valve as described in claim 2 in which the means for interconnecting the inwardly extending extremities of said end portions to said enclosure comprise: a. a connecting link portion integrally formed on the inner extremity of each end portion and extending rearwardly therefrom in substantially parallel relation to the adjacent leg portion; and b. means interconnecting the rear extremities of said connecting link portions to opposite sides of said enclosure.
Claim 5
Dependent Claim
32 words
A toilet valve as described in claim 3 in which: a. said first and second arcuate gripping portions have a less width and less tensional lengthwise resistance than said connecting link portions.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-07 | 1976-05-08 | 1976-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-07 | 1980-05-08 | 1980-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-07 | 1984-05-08 | 1984-11-07 | $7700.00 | Window Closed / Lapsed |