Patent US3267959A successfully refreshed from Google Patents.
US3267959A
Expired / Lapsed
US
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Anti-fouling anti-syphoning valve
Assignee: Individual
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Filing: 1963-09-25
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Granted: 1966-08-23
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Expires: 1983-09-25
Abstract
No abstract record available.
Inventors
- 👤 Harry A Savage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:43
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/02; E03C1/10; E03C1/104; F; F16; F16K; F16K15/00; F16K15/02; F16K15/06; F16K15/063; F16K15/065; F16K27/00; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7859; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7931
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
AN ANTI-FOULING ANTI-SYPHONING VALVE COMPRISING A MAIN VALVE BODY HAVING A LONGITUDINALLY DISPOSED FLUID DUCT, A VALVE STEM EXTENDING ALONG SAID FLUID DUCT, AN OUTLET CHAMBER HAVING A SUBSTANTIALLY CYLINDRICAL SIDE WALL CMMUNICATING WITH SAID FLUID DUCT AT ONE END, A VALVE SLIDABLY MOUNTED IN SAID CHAMBER AND SECURED TO ONE END OF SAID VALVE STEM, SPRING MEANS OPERATIVELY CONNECTED TO SAID VALVE STEM YIELDINGLY URGING SAID VALVE TO A CLOSED POSITION, AND A RESILIENT O-RING MOUNTED ON SAID VALVE AND ENGAGING SAID CYLINDRICAL SIDE WALL FOR SEALING SAID OUTLET CHAMBER AT SAID ONE END, SAID CYLINDRICAL SIDE WALL HAVING A PLURALITY OF LONGITUDINALLY DISPOSED SLOTTED PORTIONS EXTENDING FROM THE OTHER END OF SAID CYLINDRICAL SIDE WALL TO A POSITION SPACED FROM SAID ONE END PERMITTING A DISCHARGE OF FLUID THROUGH SAID SLOTTED PORTIONS BEFORE SAID VALVE ARRIVES AT ITS FULLY OPEN POSITION.
Claim 2
Dependent Claim
143 words
AN ANTI-FOULING ANTI-SYPHONING VALVE COMPRISING A MAIN VALVE BODY HAVING A LONGITUDINALLY DISPOSED FLUID DUCT, A VALVE STEM EXTENDING ALONG SAID FLUID DUCT, AN OUTLET CHAMBER HAVING A SUBSTANTIALLY CYLINDRICAL SIDE WALL CMMUNICATING WITH SAID FLUID DUCT AT ONE END, A VALVE SLIDABLY MOUNTED IN SAID CHAMBER AND SECURED TO ONE END OF SAID VALVE STEM, SPRING MEANS OPERATIVELY CONNECTED TO SAID VALVE STEM YIELDINGLY URGING SAID VALVE TO A CLOSED POSITION, AND A RESILIENT O-RING MOUNTED ON SAID VALVE AND ENGAGING SAID CYLINDRICAL SIDE WALL FOR SEALING SAID OUTLET CHAMBER AT SAID ONE END, SAID CYLINDRICAL SIDE WALL HAVING A PLURALITY OF LONGITUDINALLY DISPOSED SLOTTED PORTIONS EXTENDING FROM THE OTHER END OF SAID CYLINDRICAL SIDE WALL TO A POSITION SPACED FROM SAID ONE END PERMITTING A DISCHARGE OF FLUID THROUGH SAID SLOTTED PORTIONS BEFORE SAID VALVE ARRIVES AT ITS FULLY OPEN POSITION.
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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |