US3165756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vent means to vary buoyancy of a flush valve
Assignee: Individual
•
Filing: 1962-12-12
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Granted: 1965-01-19
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Expires: 1982-12-12
Abstract
No abstract record available.
Inventors
- 👤 Robert L Simpson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:14
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/30; E03D1/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
IN A WATER CLOSET TANK HAVING AN OUTLET, A DISCHARGE VALVE COMPRISING AN OPEN BOTTOM HOLLOW BUOYANT BALL FOR SEATING UPON AND CLOSING THE OUTLET, MEANS FOR OPERATING THE DISCHARGE VALVE INCLUDING A HANDLE SUPPORTED ON THE TANK AND A LIFT ROD CONNECTED THEREWITH AND WITH THE BALL, AND A STATIONARY GUIDE FOR THE LIFT ROD, THE IMPROVEMENT COMPRISING AN AUXILIARY VALVE MEANS MOUNTED ON SAID BALL AND CONNECTED WITH SAID HANDLE TO VENT THE VALVE BALL ONLY WHEN SAID HANDLE IS PLACED IN A PREDETERMINED POSITION AFTER LIFTING SAID VALVE BALL, THE VENTING OF THE BALL BEING EFFECTIVE TO REDUCE ITS BUOYANCY WHEREBY TO CAUSE IT TO CLOSE THE OUTLET MORE PROMTPLY UPON RELEASE OF THE HANDLE AND THUS REDUCING THE AMOUNT OF WATER USED IN FLUSHING.
Claim 2
Dependent Claim
128 words
IN A WATER CLOSET TANK HAVING AN OUTLET, A DISCHARGE VALVE COMPRISING AN OPEN BOTTOM HOLLOW BUOYANT BALL FOR SEATING UPON AND CLOSING THE OUTLET, MEANS FOR OPERATING THE DISCHARGE VALVE INCLUDING A HANDLE SUPPORTED ON THE TANK AND A LIFT ROD CONNECTED THEREWITH AND WITH THE BALL, AND A STATIONARY GUIDE FOR THE LIFT ROD, THE IMPROVEMENT COMPRISING AN AUXILIARY VALVE MEANS MOUNTED ON SAID BALL AND CONNECTED WITH SAID HANDLE TO VENT THE VALVE BALL ONLY WHEN SAID HANDLE IS PLACED IN A PREDETERMINED POSITION AFTER LIFTING SAID VALVE BALL, THE VENTING OF THE BALL BEING EFFECTIVE TO REDUCE ITS BUOYANCY WHEREBY TO CAUSE IT TO CLOSE THE OUTLET MORE PROMTPLY UPON RELEASE OF THE HANDLE AND THUS REDUCING THE AMOUNT OF WATER USED IN FLUSHING.
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) | 1968-01-19 | 1968-07-20 | 1969-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-19 | 1972-07-20 | 1973-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-19 | 1976-07-20 | 1977-01-19 | $7700.00 | Window Closed / Lapsed |