US3141177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flush valve
Assignee: Individual
•
Filing: 1962-10-26
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Granted: 1964-07-21
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Expires: 1982-10-26
Abstract
No abstract record available.
Inventors
- 👤 Frank W Kertell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:59
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/02; E03D1/14; E03D1/142; E03D1/144; E03D1/30; E03D1/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
A SELECTIVE DUAL VOLUME DUMP VALVE MECHANISM FOR FLUSH TOILETS, A FLUSH TANK, SAID VALVE COMPRISING A DRAIN VALVE SEAT, A DRAIN PIPE CONNECTED TO SAID SEAT, A FLOATTYPE FLEXIBLE VALVE, A SECONDARY FLOAT, SAID SECONDARY FLOAT CONNECTED TO SAID VALVE SO AS TO EFFECTIVELY RIDE ON SAID FLEXIBLE VALVE AND SINK IT PRIOR TO THE SURFACE OF THE LIQUID IN SAID FLUSH TANK REACHING THE TOP OF SAID FLEXIBLE VALVE, A TWO POSITION TRIP MECHANISM CONNECTED TO SAID VALVE AND FLOAT, SAID TRIP MECHANISM IN A FIRST TRIP POSITION RAISES SAID FLEXIBLE VALVE OFF ITS SEAT WHEN SAID FLUSH TANK IS SUBSTANTIALLY FULL AND SIMULTANEOUSLY HOLDING SAID FLOAT IN ITS RAISED POSITION, SAID TRIP MECHANISM IN ITS SECOND TRIP POSITION LIFTING SAID FLEXIBLE VALVE OFF ITS SEAT AND RELEASING SAID FLOAT SO ITS WEIGHT RIDES ON SAID FLEXIBLE VALVE TO SINK SAID FLEXIBLE VALVE TO CLOSE THE FLOW TO SAID DRAIN PIPE WHILE THE LEVEL OF WATER IN SAID TANK IS SUBSTANTIALLY HIGHER THAN THE LEVEL WHEN SAID FLEXIBLE VALVE SEATS AFTER BEING TRIPPED IN THE FIRST POSITION OF SAID TRIP MECHANISM.
Claim 2
Dependent Claim
183 words
A SELECTIVE DUAL VOLUME DUMP VALVE MECHANISM FOR FLUSH TOILETS, A FLUSH TANK, SAID VALVE COMPRISING A DRAIN VALVE SEAT, A DRAIN PIPE CONNECTED TO SAID SEAT, A FLOATTYPE FLEXIBLE VALVE, A SECONDARY FLOAT, SAID SECONDARY FLOAT CONNECTED TO SAID VALVE SO AS TO EFFECTIVELY RIDE ON SAID FLEXIBLE VALVE AND SINK IT PRIOR TO THE SURFACE OF THE LIQUID IN SAID FLUSH TANK REACHING THE TOP OF SAID FLEXIBLE VALVE, A TWO POSITION TRIP MECHANISM CONNECTED TO SAID VALVE AND FLOAT, SAID TRIP MECHANISM IN A FIRST TRIP POSITION RAISES SAID FLEXIBLE VALVE OFF ITS SEAT WHEN SAID FLUSH TANK IS SUBSTANTIALLY FULL AND SIMULTANEOUSLY HOLDING SAID FLOAT IN ITS RAISED POSITION, SAID TRIP MECHANISM IN ITS SECOND TRIP POSITION LIFTING SAID FLEXIBLE VALVE OFF ITS SEAT AND RELEASING SAID FLOAT SO ITS WEIGHT RIDES ON SAID FLEXIBLE VALVE TO SINK SAID FLEXIBLE VALVE TO CLOSE THE FLOW TO SAID DRAIN PIPE WHILE THE LEVEL OF WATER IN SAID TANK IS SUBSTANTIALLY HIGHER THAN THE LEVEL WHEN SAID FLEXIBLE VALVE SEATS AFTER BEING TRIPPED IN THE FIRST POSITION OF SAID TRIP MECHANISM.
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) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |