US3156930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water saver for flush tank toilets
Assignee: Individual
•
Filing: 1963-10-28
•
Granted: 1964-11-17
•
Expires: 1983-10-28
Abstract
No abstract record available.
Inventors
- 👤 Clayton J Moulton
- 👤 Melvin I Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:30
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/02; E03D1/14; E03D1/142; E03D1/144; Y; Y02; Y02A; Y02A20/00; Y02A20/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A WATER SAVING DEVICE FOR USE IN CONJUNCTION WITH THE FLUSHING MECHANISM OF A FLUSH TANK HAVING A DISCHARGE OPENING AT ITS LOWER END, A VALVE FOR CONTROLLING SAID DISCHARGE OPENING, A MANUALLY OPERABLE ARM PIVOTALLY SUPPORTED IN SAID TANK AND MEANS CONNECTING SAID ARM TO SAID VALVE TO LIFT SAID VALVE UPON PIVOTAL MOVEMENT OF SAID ARM, SAID DEVICE INCLUDING: A PRESSURE PLATE, MEANS MOVABLY SUPPORTING SAID PLATE ABOVE SAID VALUE FOR ENGAGEMENT WITH SAID VALVE, A LATCH NORMALLY SUPPORTING SAID PRESSURE PLATE OUT OF ENGAGEMENT WITH SAID VALVE, AND MANUALLY OPERABLE MEANS FOR RELEASING SAID LATCH TO CAUSE SAID PRESSURE TO EXERT A DOWNWARD FORCE ON SAID VALVE.
Claim 2
Dependent Claim
110 words
A WATER SAVING DEVICE FOR USE IN CONJUNCTION WITH THE FLUSHING MECHANISM OF A FLUSH TANK HAVING A DISCHARGE OPENING AT ITS LOWER END, A VALVE FOR CONTROLLING SAID DISCHARGE OPENING, A MANUALLY OPERABLE ARM PIVOTALLY SUPPORTED IN SAID TANK AND MEANS CONNECTING SAID ARM TO SAID VALVE TO LIFT SAID VALVE UPON PIVOTAL MOVEMENT OF SAID ARM, SAID DEVICE INCLUDING: A PRESSURE PLATE, MEANS MOVABLY SUPPORTING SAID PLATE ABOVE SAID VALUE FOR ENGAGEMENT WITH SAID VALVE, A LATCH NORMALLY SUPPORTING SAID PRESSURE PLATE OUT OF ENGAGEMENT WITH SAID VALVE, AND MANUALLY OPERABLE MEANS FOR RELEASING SAID LATCH TO CAUSE SAID PRESSURE TO EXERT A DOWNWARD FORCE ON SAID VALVE.
References Cited (Backward Citations)
US1918597A
Cited
US2059749A
Cited
US2290679A
Cited
US2526294A
Cited
US2645780A
Cited
US2819471A
Cited
US2817849A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |