US3302980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid and manual actuated valve
Assignee: Stewart Warner Corp
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Filing: 1964-08-10
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Granted: 1967-02-07
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Expires: 1984-08-10
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Bystricky
- 👤 Rasmussen Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:29
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; B60T11/103; F; F16; F16N; F16N7/00; F16N7/30; F16N7/32; F16N7/36; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7835
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN A PRESSURIZED FLUID CONTROL VALVE HAVING AN INLET PASSAGEWAY AND AN OUTLET PASSAGEWAY, AUTOMATICALLY MOVABLE MEANS BIASED IN A VALVE CLOSING DIRECTION AND MOVABLE BY FLUID PRESSURE IN A VALVE OPENING DIRECTION, VALVE MEANS MOVED IN A VALVE CLOSING DIRECTION BY SAID MOVABLE MEANS TO A POSITION FOR PREVENTING THE TRANSMISSION OF FLUID BETWEEN SAID INLET PASSAGEWAY AND SAID OUTLET PASSAGEWAY WITH SAID VALVE MEANS HAVING MEANS RESPONSIVE TO FLUID PRESSURE AT SAID INLET PASSAGEWAY FOR MOVING TO A SECOND POSITION INDEPENDENTLY OF SAID MOVABLE MEANS TO PERMIT THE PASSAGE OF FLUID BETWEEN SAID INLET PASSAGEWAY AND OUTLET PASSAGEWAY WHILE PRESSURE AT SAID INLET PASSAGEWAY IS SIMULTANEOUSLY EXERTED AGAINST SAID MOVABLE MEANS, AND MEANS FOR MANUALLY MOVING SAID VALVE MEANS IN A VALVE CLOSING DIRECTION.
Claim 2
Dependent Claim
126 words
IN A PRESSURIZED FLUID CONTROL VALVE HAVING AN INLET PASSAGEWAY AND AN OUTLET PASSAGEWAY, AUTOMATICALLY MOVABLE MEANS BIASED IN A VALVE CLOSING DIRECTION AND MOVABLE BY FLUID PRESSURE IN A VALVE OPENING DIRECTION, VALVE MEANS MOVED IN A VALVE CLOSING DIRECTION BY SAID MOVABLE MEANS TO A POSITION FOR PREVENTING THE TRANSMISSION OF FLUID BETWEEN SAID INLET PASSAGEWAY AND SAID OUTLET PASSAGEWAY WITH SAID VALVE MEANS HAVING MEANS RESPONSIVE TO FLUID PRESSURE AT SAID INLET PASSAGEWAY FOR MOVING TO A SECOND POSITION INDEPENDENTLY OF SAID MOVABLE MEANS TO PERMIT THE PASSAGE OF FLUID BETWEEN SAID INLET PASSAGEWAY AND OUTLET PASSAGEWAY WHILE PRESSURE AT SAID INLET PASSAGEWAY IS SIMULTANEOUSLY EXERTED AGAINST SAID MOVABLE MEANS, AND MEANS FOR MANUALLY MOVING SAID VALVE MEANS IN A VALVE CLOSING DIRECTION.
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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |