US3301274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick opening high pressure valve
Assignee: United Geophysical Corp
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Filing: 1964-01-23
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Granted: 1967-01-31
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Expires: 1984-01-23
Abstract
No abstract record available.
Inventors
- 👤 James T Kenney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:30
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/122; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86622; Y10T137/8663; Y10T137/8667; Y10T137/86686
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
IN A QUICK-ACTING DIFFERENTIAL VALVE STRUCTURE FOR CONTROLLING FLOW OF HIGH-PRESSURE LARGE-VOLUME FLUIDS: A VALVE BODY PROVIDING A FLUID CHAMBER HAVING AN AXIS; MEANS PROVIDING A FLUID INLET PORT ON SAID AXIS TO SAID CHAMBER; MEANS PROVIDING A FLUID EXHAUST PORT ON SAID AXIS FROM SAID CHAMBER; A VALVE STEM DISPOSED ALONG SAID AXIS AND CARRYING VALVES ADJACENT ITS OPPOSITE ENDS FOR CONTROLLING SAID PORTS; SAID VALVE BODY PROVIDING A HIGH PRESSURE FLUID OUTLET PASSAGE FROM SAID CHAMBER; AND A DIFFERENTIAL PISTON MOUNTED ON SAID VALVE STEM FOR ACTUATION OF SAID VALVES TO OPEN ONE VALVE AND CLOSE THE OTHER SIMULTANEOUSLY.
Claim 2
Dependent Claim
101 words
IN A QUICK-ACTING DIFFERENTIAL VALVE STRUCTURE FOR CONTROLLING FLOW OF HIGH-PRESSURE LARGE-VOLUME FLUIDS: A VALVE BODY PROVIDING A FLUID CHAMBER HAVING AN AXIS; MEANS PROVIDING A FLUID INLET PORT ON SAID AXIS TO SAID CHAMBER; MEANS PROVIDING A FLUID EXHAUST PORT ON SAID AXIS FROM SAID CHAMBER; A VALVE STEM DISPOSED ALONG SAID AXIS AND CARRYING VALVES ADJACENT ITS OPPOSITE ENDS FOR CONTROLLING SAID PORTS; SAID VALVE BODY PROVIDING A HIGH PRESSURE FLUID OUTLET PASSAGE FROM SAID CHAMBER; AND A DIFFERENTIAL PISTON MOUNTED ON SAID VALVE STEM FOR ACTUATION OF SAID VALVES TO OPEN ONE VALVE AND CLOSE THE OTHER SIMULTANEOUSLY.
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |