US3115153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flush valve for toilet tanks
Assignee: IMPERIAL VALVE CO
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Filing: 1961-04-13
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Granted: 1963-12-24
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Expires: 1981-04-13
Abstract
No abstract record available.
Inventors
- 👤 Delamater William Bruce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:50
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/18; F16K31/20; F16K31/22; E; E03; E03D; E03D1/00; E03D1/30; E03D1/32; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7368; Y10T137/7371; Y10T137/7413; Y10T137/7423; Y10T137/7426; Y10T137/7433
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
A FLUSH VALVE FOR TOILET TANKS, THE TOILET TANK HAVING A BASE WITH A FITTING IN SAID BASE CONNECTED TO A SOURCE OF WATER SUPPLY UNDER PRESSURE, INCLUDING: A FILLING TUBE HAVING OUTLET AND INLET ENDS WITHIN THE TOILET TANK WITH THE INLET END THEREOF ADAPTED TO BE SECURED TO THE FITTING IN SAID BASE WITH THE FILLING TUBE EXTENDING SUBSTANTIALLY NORMAL TO THE TOILET TANK BASE, A FLOAT CONCENTRICALLY SURROUNDING THE FILLING TUBE AND MOVABLE RELATIVE THERETO, SAID FLOAT COMPRISING INNER AND OUTER CONCENTRIC SPACED APART TUBES, THE OUTER TUBE PROVIDED WITH AN ANNULAR BASE WALL JOINED TO THE INNER TUBE NEAR ITS LOWER END, AND HAVING AN OPEN ANNULAR UPPER END, SAID INNER TUBE BEING PROVIDED WITH DISCHARGE PORTS BETWEEN ITS LOWER END AND THE ANNULAR BASE WALL OF THE OUTER TUBE, AND VALVE MEANS AND PORT MEANS WITHIN THE INNER TUBE ADJACENT THE TOP THEREOF FOR CONTROLLING PASSAGE OF WATER THROUGH THE FILLING TUBE INTO THE INNER TUBE OF THE FLOAT FOR PASSAGE THROUGH THE OUTLET PORTS INTO THE SUPPLY TANK.
Claim 2
Dependent Claim
174 words
A FLUSH VALVE FOR TOILET TANKS, THE TOILET TANK HAVING A BASE WITH A FITTING IN SAID BASE CONNECTED TO A SOURCE OF WATER SUPPLY UNDER PRESSURE, INCLUDING: A FILLING TUBE HAVING OUTLET AND INLET ENDS WITHIN THE TOILET TANK WITH THE INLET END THEREOF ADAPTED TO BE SECURED TO THE FITTING IN SAID BASE WITH THE FILLING TUBE EXTENDING SUBSTANTIALLY NORMAL TO THE TOILET TANK BASE, A FLOAT CONCENTRICALLY SURROUNDING THE FILLING TUBE AND MOVABLE RELATIVE THERETO, SAID FLOAT COMPRISING INNER AND OUTER CONCENTRIC SPACED APART TUBES, THE OUTER TUBE PROVIDED WITH AN ANNULAR BASE WALL JOINED TO THE INNER TUBE NEAR ITS LOWER END, AND HAVING AN OPEN ANNULAR UPPER END, SAID INNER TUBE BEING PROVIDED WITH DISCHARGE PORTS BETWEEN ITS LOWER END AND THE ANNULAR BASE WALL OF THE OUTER TUBE, AND VALVE MEANS AND PORT MEANS WITHIN THE INNER TUBE ADJACENT THE TOP THEREOF FOR CONTROLLING PASSAGE OF WATER THROUGH THE FILLING TUBE INTO THE INNER TUBE OF THE FLOAT FOR PASSAGE THROUGH THE OUTLET PORTS INTO THE SUPPLY TANK.
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) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |