Patent US3112769A successfully refreshed from Google Patents.
US3112769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve mechanism
Assignee: AgEagle Aerial Systems Inc
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Filing: 1960-03-24
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Granted: 1963-12-03
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Expires: 1980-03-24
Abstract
No abstract record available.
Inventors
- 👤 Robert J Broadwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:59
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/10; F16K11/14; F16K11/16; F16K11/163; F16K11/165; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86919; Y10T137/87169; Y10T137/87217
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN A VALVE MECHANISM THE COMBINATION COMPRISING A VALVE BODY HAVING FORMED THEREIN A LONGITUDINALLY EXTENDING VALVE CAVITY AND THREE PARALLEL OPENINGS EXTENDING COMPLETELY THERETHROUGH TRANSVERSELY WITH RESPECT TO SAID CAVITY AND EACH COMMUNICATING WITH THE LATTER, SAID THREE OPENINGS CONSTITUING HIGH PRESSURE, LOW PRESSURE AND WORKING PORTS; AND VALVE MEAN MOUNTED WITHIN SAID CAVITY FOR MOVEMENT INTO DIFFERENT POSITIONS TO CONTROL THE FLOW OF FLUID FROM SAID HIGH PRESSURE TO SAID WORKING PORT AND FROM SAID WORKING PORT TO SAID LOW PRESSURE PORT, WHERIEN THE SIDES OF SAID VALVE BODY THROUGH WHICH SAID PARALLEL OPENINGS EXTEND INCLUDE PLANAR SURFACE MEANS ADJACENT THE ENDS OF SAID OPENINGS, THE PLANAR SURFACE MEANS ON EACH SIDE HAVING A SEALING ELEMENT RECEIVING ANNULAR GROOVE FORMED THEREIN SURROUNDING THE ADJACENT END OF EACH OF SAID OPENINGS.
Claim 2
Dependent Claim
132 words
IN A VALVE MECHANISM THE COMBINATION COMPRISING A VALVE BODY HAVING FORMED THEREIN A LONGITUDINALLY EXTENDING VALVE CAVITY AND THREE PARALLEL OPENINGS EXTENDING COMPLETELY THERETHROUGH TRANSVERSELY WITH RESPECT TO SAID CAVITY AND EACH COMMUNICATING WITH THE LATTER, SAID THREE OPENINGS CONSTITUING HIGH PRESSURE, LOW PRESSURE AND WORKING PORTS; AND VALVE MEAN MOUNTED WITHIN SAID CAVITY FOR MOVEMENT INTO DIFFERENT POSITIONS TO CONTROL THE FLOW OF FLUID FROM SAID HIGH PRESSURE TO SAID WORKING PORT AND FROM SAID WORKING PORT TO SAID LOW PRESSURE PORT, WHERIEN THE SIDES OF SAID VALVE BODY THROUGH WHICH SAID PARALLEL OPENINGS EXTEND INCLUDE PLANAR SURFACE MEANS ADJACENT THE ENDS OF SAID OPENINGS, THE PLANAR SURFACE MEANS ON EACH SIDE HAVING A SEALING ELEMENT RECEIVING ANNULAR GROOVE FORMED THEREIN SURROUNDING THE ADJACENT END OF EACH OF SAID OPENINGS.
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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) | 1966-12-02 | 1967-06-03 | 1967-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-02 | 1971-06-03 | 1971-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-02 | 1975-06-03 | 1975-12-03 | $7700.00 | Window Closed / Lapsed |