US3077901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Divided flow, control valve system
Assignee: Vickers Inc
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Filing: 1960-06-27
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Granted: 1963-02-19
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Expires: 1980-06-27
Abstract
No abstract record available.
Inventors
- 👤 Ernst F Klessig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:15
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/06; F15B13/08; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87169; Y10T137/87177; Y10T137/87185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A COMBINED FULL FLOW AND REGULATED FLOW DIRECTIONAL CONTROL VALVE COMPRISING: A HOUSING HAVING A VALVE BORE, A PLURALITY OF PASSAGES CONNECTED TO THE BORE INCLUDING A PRESSURE DELIVERY PASSAGE, AT LEAST ONE UTILIZATION PASSAGE, A RETURN PASSAGE, AND A BY-PASS PASSAGE INTERCONNECTED TO THE PRESSURE DELIVERY PASSAGE AND TO THE RETURN PASSAGE RESPECTIVELY AHEAD OF AND BEYOND THE VALVE BORE AND EXTENDING TO A FACE OF THE HOUSING; A VALVE MEMBER IN THE BORE NORMALLY CLOSING THE PRESSURE DELIVERY PASSAGE WHILE LEAVING THE BY-PASS PASSAGE OPEN AND SELECTIVELY OPERABLE TO CONNECT THE PRESSURE DELIVERY PASSAGE TO THE UTILIZATION PASSAGE WHILE CLOSING THE BY-PASS PASSAGE; A THROTTLE THROUGH WHICH FLUID FLOW IN THE BY-PASS PASSAGE MUST PASS THROUGH; A FLOW CONTROL VALVE OF THE BY-PASS
Claim 2
Dependent Claim
125 words
A COMBINED FULL FLOW AND REGULATED FLOW DIRECTIONAL CONTROL VALVE COMPRISING: A HOUSING HAVING A VALVE BORE, A PLURALITY OF PASSAGES CONNECTED TO THE BORE INCLUDING A PRESSURE DELIVERY PASSAGE, AT LEAST ONE UTILIZATION PASSAGE, A RETURN PASSAGE, AND A BY-PASS PASSAGE INTERCONNECTED TO THE PRESSURE DELIVERY PASSAGE AND TO THE RETURN PASSAGE RESPECTIVELY AHEAD OF AND BEYOND THE VALVE BORE AND EXTENDING TO A FACE OF THE HOUSING; A VALVE MEMBER IN THE BORE NORMALLY CLOSING THE PRESSURE DELIVERY PASSAGE WHILE LEAVING THE BY-PASS PASSAGE OPEN AND SELECTIVELY OPERABLE TO CONNECT THE PRESSURE DELIVERY PASSAGE TO THE UTILIZATION PASSAGE WHILE CLOSING THE BY-PASS PASSAGE; A THROTTLE THROUGH WHICH FLUID FLOW IN THE BY-PASS PASSAGE MUST PASS THROUGH; A FLOW CONTROL VALVE OF THE BY-PASS
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) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |