Patent US2709167A successfully refreshed from Google Patents.
Patent US3142846A successfully refreshed from Google Patents.
US3142846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flush valve
Assignee: Gerber Industries Inc
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Filing: 1963-08-26
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Granted: 1964-08-04
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Expires: 1983-08-26
Abstract
No abstract record available.
Inventors
- 👤 Frank B Lackenmaier
- 👤 John W Sanderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:05
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/30; E03D1/304; E03D1/306; E03D1/308
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
A FLUSH VALVE FOR A FLUSH TANK OF THE TYPE PROVIDED WITH A DISCHARGE TUBE HAVING A VALVE SEAT AT THE UPPER END THEREOF AND AN OVERFLOW TUBE CONNECTED TO SAID DISCHARGE TUBE AND OFFSET THEREFROM; SAID VALVE COMPRISING, IN COMBINATION, A PAIR OF SPACED PIVOT ELEMENTS LOCATED ON OPPOSITE SIDES OF THE OVERFLOW TUBE, A U-SHAPED LEVER HAVING ITS LEGS PIVOTLY MOUNTED ON SAID PIVOT ELEMENTS SO AS TO STRADDLE THE OVERFLOW TUBE, A VALVE MEMBER CARRIED BY SAID U-SHAPED LEVER BELOW THE BIGHT OF THE U AND BEING NORMALLY ADAPTED TO SEAL AGAINST SAID VALVE SEAT, AND A HOLLOW CONTAINER MOUNTED ON ONE LEG OF SAID U-SHAPED LEVER AND BEING POSITIONED TO MOVE IN A PLANE LATERALLY OFFSET FROM THE OVERFLOW TUBE SO THAT THERE IS NO ENGAGEMENT BETWEEN THE HOLLOW CONTAINER AND THE OVERFLOW TUBE, SAID CONTAINER HAVING A RESTRICTED DISCHARGE ORIFICE THEREIN FOR PROVIDING A TIME DELAY BETWEEN THE TIME WHEN THE VALVE IS FIRST OPENED AND THE TIME WHEN THE VALVE RE-CLOSES.
Claim 2
Dependent Claim
167 words
A FLUSH VALVE FOR A FLUSH TANK OF THE TYPE PROVIDED WITH A DISCHARGE TUBE HAVING A VALVE SEAT AT THE UPPER END THEREOF AND AN OVERFLOW TUBE CONNECTED TO SAID DISCHARGE TUBE AND OFFSET THEREFROM; SAID VALVE COMPRISING, IN COMBINATION, A PAIR OF SPACED PIVOT ELEMENTS LOCATED ON OPPOSITE SIDES OF THE OVERFLOW TUBE, A U-SHAPED LEVER HAVING ITS LEGS PIVOTLY MOUNTED ON SAID PIVOT ELEMENTS SO AS TO STRADDLE THE OVERFLOW TUBE, A VALVE MEMBER CARRIED BY SAID U-SHAPED LEVER BELOW THE BIGHT OF THE U AND BEING NORMALLY ADAPTED TO SEAL AGAINST SAID VALVE SEAT, AND A HOLLOW CONTAINER MOUNTED ON ONE LEG OF SAID U-SHAPED LEVER AND BEING POSITIONED TO MOVE IN A PLANE LATERALLY OFFSET FROM THE OVERFLOW TUBE SO THAT THERE IS NO ENGAGEMENT BETWEEN THE HOLLOW CONTAINER AND THE OVERFLOW TUBE, SAID CONTAINER HAVING A RESTRICTED DISCHARGE ORIFICE THEREIN FOR PROVIDING A TIME DELAY BETWEEN THE TIME WHEN THE VALVE IS FIRST OPENED AND THE TIME WHEN THE VALVE RE-CLOSES.
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) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |