US3320622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toilet tank flush valve
Assignee: Individual
•
Filing: 1964-11-18
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Granted: 1967-05-23
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Expires: 1984-11-18
Abstract
No abstract record available.
Inventors
- 👤 William E Wustner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:44
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/30; E03D1/302
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A TOILET FLUSH VALVE CONSTRUCTION COMPRISING A DISCHARGE VALVE FITTING HAVING A SEAT, A VALVE MEMBER FOR ENGAGEMENT WITH SAID SEAT AND HAVING A HOLLOW INTERIOR PORTION AND AN OPENING IN THE BOTTOM THEREOF, MANUALLY OPERABLE ACTUATING MEMBERS FOR MOVING SAID VALVE MEMBER FROM ITS SEAT FOR FLUSHING, SAID ACTUATING MEMBERS INCLUDING A HANDLE AND A LINKAGE CONTROLLED BY SAID HANDLE INTERPOSED BETWEEN SAID HANDLE AND SAID VALVE AND MOVING SAID VALVE UPON MOVEMENT OF SAID HANDLE IN OPPOSITE DIRECTIONS, AND MEANS FOR CONTROLLING THE BUOYANCY OF SAID VALVE MEMBER, SAID MEANS INCLUDING A VENT CONNECTION TO THE INTERIOR OF SAID VALVE MEMBER AND A VENT CONNECTION CONTROL MEMBER CONTROLLED BY THE MOVEMENT OF SAID LINKAGE AND EFFECTING VENTING OF SAID VENT CONNECTION IN ONE HANDLE DETERMINED POSITION OF SAID LINKAGE AND NONVENTING OF SAID VENT CONNECTION IN THE OPPOSITE HANDLE DETERMINED POSITION OF SAID LINKAGE.
Claim 2
Dependent Claim
146 words
A TOILET FLUSH VALVE CONSTRUCTION COMPRISING A DISCHARGE VALVE FITTING HAVING A SEAT, A VALVE MEMBER FOR ENGAGEMENT WITH SAID SEAT AND HAVING A HOLLOW INTERIOR PORTION AND AN OPENING IN THE BOTTOM THEREOF, MANUALLY OPERABLE ACTUATING MEMBERS FOR MOVING SAID VALVE MEMBER FROM ITS SEAT FOR FLUSHING, SAID ACTUATING MEMBERS INCLUDING A HANDLE AND A LINKAGE CONTROLLED BY SAID HANDLE INTERPOSED BETWEEN SAID HANDLE AND SAID VALVE AND MOVING SAID VALVE UPON MOVEMENT OF SAID HANDLE IN OPPOSITE DIRECTIONS, AND MEANS FOR CONTROLLING THE BUOYANCY OF SAID VALVE MEMBER, SAID MEANS INCLUDING A VENT CONNECTION TO THE INTERIOR OF SAID VALVE MEMBER AND A VENT CONNECTION CONTROL MEMBER CONTROLLED BY THE MOVEMENT OF SAID LINKAGE AND EFFECTING VENTING OF SAID VENT CONNECTION IN ONE HANDLE DETERMINED POSITION OF SAID LINKAGE AND NONVENTING OF SAID VENT CONNECTION IN THE OPPOSITE HANDLE DETERMINED POSITION OF SAID LINKAGE.
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) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |