Patent US2805962A successfully refreshed from Google Patents.
Patent US3414003A successfully refreshed from Google Patents.
US3414003A
Expired / Lapsed
US
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Vacuum breaker valve
Assignee: Individual
•
Filing: 1964-05-19
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Granted: 1968-12-03
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Expires: 1984-05-19
Abstract
No abstract record available.
Inventors
- 👤 Fred K Wyckoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:23
CPC Classifications
F; F16; F16K; F16K24/00; F16K24/06; Y; Y10; Y10T; Y10T137/00; Y10T137/3149; Y10T137/3185; Y10T137/3294; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/7913; Y10T137/7914
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A VACUUM BREAKER VALVE, COMPRISING: A GENERALLY CYLINDRICAL BODY HAVING A LONGITUDINAL PASSAGE EXTENDING THERETHROUGH; A VENT CAP MOUNTED UPON ONE END OF SAID BODY AND HAVING PASSAGE MEANS FORMED THEREIN FOR ESTABLISHING COMMUNICATION BETWEEN THE ATMOSPHERE AND SAID LONGITUDINAL PASSAGE; AN ANNULAR VALVE SEAT LOCATED WITHIN SAID LONGITUDINAL PASSAGE; A PLURALITY OF LONGITUDINALLY EXTENDING GUIDE RIBS FORMED ON AND PROJECTING RADIALLY INWARDLY FROM SAID BODY ALONG SAID LONGITUDINAL PASSAGE; SHOULDER MEANS FORMED ON AND EXTENDING RADIALLY INWARDLY FARTHER THAN SAID GUIDE RIBS AND BEING AXIALLY SPACED FROM AND SAID VALVE SEAT; AND A VALVE CLOSURE MEMBER DISPOSED IN SAID LONGITUDINAL PASSAGE RADIALLY INWARDLY OF SAID GUIDE RIBS AND ABOVE SAID SHOULDER MEANS, SAID VALVE CLOSURE MEMBER PRESENTING AN ELONGATED CENTERING AND GUIDING SURFACE TO SAID GUIDE RIBS AND BEING FREELY MOVABLE FROM POSITION ENGAGING SAID SHOULDER MEANS TO A POSITION ENGAGING SAID VALVE SEAT.
Claim 2
Dependent Claim
145 words
A VACUUM BREAKER VALVE, COMPRISING: A GENERALLY CYLINDRICAL BODY HAVING A LONGITUDINAL PASSAGE EXTENDING THERETHROUGH; A VENT CAP MOUNTED UPON ONE END OF SAID BODY AND HAVING PASSAGE MEANS FORMED THEREIN FOR ESTABLISHING COMMUNICATION BETWEEN THE ATMOSPHERE AND SAID LONGITUDINAL PASSAGE; AN ANNULAR VALVE SEAT LOCATED WITHIN SAID LONGITUDINAL PASSAGE; A PLURALITY OF LONGITUDINALLY EXTENDING GUIDE RIBS FORMED ON AND PROJECTING RADIALLY INWARDLY FROM SAID BODY ALONG SAID LONGITUDINAL PASSAGE; SHOULDER MEANS FORMED ON AND EXTENDING RADIALLY INWARDLY FARTHER THAN SAID GUIDE RIBS AND BEING AXIALLY SPACED FROM AND SAID VALVE SEAT; AND A VALVE CLOSURE MEMBER DISPOSED IN SAID LONGITUDINAL PASSAGE RADIALLY INWARDLY OF SAID GUIDE RIBS AND ABOVE SAID SHOULDER MEANS, SAID VALVE CLOSURE MEMBER PRESENTING AN ELONGATED CENTERING AND GUIDING SURFACE TO SAID GUIDE RIBS AND BEING FREELY MOVABLE FROM POSITION ENGAGING SAID SHOULDER MEANS TO A POSITION ENGAGING SAID VALVE SEAT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |