Patent US3213887A successfully refreshed from Google Patents.
US3213887A
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Dynamically balanced valve
Assignee: Individual
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Filing: 1964-08-10
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Granted: 1965-10-26
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Expires: 1984-08-10
Abstract
No abstract record available.
Inventors
- 👤 Henry W Angelery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:10
CPC Classifications
F; F16; F16K; F16K39/00; F16K39/04; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86928; Y10T137/86936; Y10T137/86944; Y10T137/86984
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
160 words
A STATISTICALLY AND DYNAMICALLY BALANCED VALVE COMPRISING A CASING HAVING AN INLET PASSAGE AND A DISCHARGE PASSAGE, A VALVE PORT CONNECTING SAID PASSAGES, A FIRST VALVE SEAT IN SAID PORT, A VALVE PLUG ENGAGEABLE WITH SAID SEAT FOR DISCONNECTING SAID PASSAGES AND SUBJECTED ON ITS OPPOSITE SIDES TO THE PRESSURES IN SAID PASSAGES, SAID VALVE PLUG BEING MOVABLE AWAY FROM SAID SEAT TO PERMIT FLOW OF FLUD THROUGH SAID SEAT, A PRESSURE BALANCING CHAMBER RECEIVING SAID VALVE PLUG, A SECOND VALVE SEAT IN SAID VALVE PLUG, A VALVE MEMBER ENGAGEABLE WITH SAID SECOND SEAT AND DISPLACEABLE THEREFROM TO ENABLE FLUID TO FLOW THERETHROUGH, A FIRST MEANS ON SAID VALVE PLUG IN THE PATH OF FLUID FLOWING BETWEEN SAID FIRST SEAT AND SAID VALVE PLUG RESPOSIVE TO KINETIC FORCE DEVELOPED BY FLOW OF FLUID THROUGH SAID FIRST VALVE SEAT FOR URGING SAID VALVE PLUG TOWARD SAID FIRST SEAT, AND SECOND MEANS ON SAID VALVE PLUG RESPONSIVE TO FLOW OF FLUID THROUGH
References Cited (Backward Citations)
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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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |