Patent US3787902A successfully refreshed from Google Patents.
US3787902A
Expired / Lapsed
US
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Flush tank water-regulating attachment
Assignee: Individual
•
Filing: 1971-12-06
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Granted: 1974-01-29
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Expires: 1991-12-06
Abstract
Abstract The volume of water supplied to flush a toilet bowl is selected by setting a handle mounted externally on a flush tank, which handle swings a support lever between a nonlimiting position and a position for limiting downward travel of an auxiliary float. A float-actuated lever carries adjacent to its pivot a link for engaging the flush tank discharge valve to limit upward travel of such valve. The valve thereby remains close to its valve seat so that the valve is closed more quickly by pressure of the water on its upper surface and suction created by water flowing through the valve port, thereby substantially reducing the volume of water supplied to the bowl.
Inventors
- 👤 Combs J Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:03
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/30; E03D1/34; E03D1/02; E03D1/14; E03D1/142; Y; Y02; Y02A; Y02A20/00; Y02A20/40
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
133 words
A flush tank attachment for cooperating with a flush valve comprising lever means, a float connected to said lever means and movable in response to changes in flush tank water level, valveengaging means connected to said lever means at a location spaced from said float and operable by downward movement of said float to expedite closing of the valve, a float support movable between a float-supporting position in which said float support is engageable with said float to limit downward movement thereof for operating said valve-engaging means and a float-clearing position, a float support control handle located externally of the flush tank, and means for connecting said float support and said external control handle to effect shifting of the float support between float-supporting position and float-clearing position by movement of said control handle.
Claim 2
Dependent Claim
133 words
A flush tank attachment for cooperating with a flush valve comprising lever means, a float connected to said lever means and movable in response to changes in flush tank water level, valveengaging means connected to said lever means at a location spaced from said float and operable by downward movement of said float to expedite closing of the valve, a float support movable between a float-supporting position in which said float support is engageable with said float to limit downward movement thereof for operating said valve-engaging means and a float-clearing position, a float support control handle located externally of the flush tank, and means for connecting said float support and said external control handle to effect shifting of the float support between float-supporting position and float-clearing position by movement of said control handle.
Claim 3
Dependent Claim
21 words
The attachment defined in claim 1, and a resilient clamp engageable with the flush tank rim for supporting the connecting means.
References Cited (Backward Citations)
US1586655A
Cited
US2532977A
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US2526294A
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US3141177A
Cited
US3156930A
Cited
US3538519A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |