US3567191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidic fuel system with back pressure control
Assignee: Bendix Corp
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Filing: 1969-07-15
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Granted: 1971-03-02
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Expires: 1989-07-15
Abstract
Abstract A FUEL SYSTEM HAVING FLUID LOGIC COMPONENTS IS PROVIDED WITH MEANS OF MAINTAINING FLUID BACK PRESSURE WITHIN THE FLUID LOGIC ELEMENT AT A CONSTANT LEVEL REGARDLESS OF THE ATTITUDE AND OPERATIVE SITUATION OF THE FUEL SYSTEM. A PREFERRED EMBODIMENT OF THE BACK PRESSURE MAINTAINING MEANS COMPRISES A NAROW RESERVOIR MAINTAINED BEHIND A WEIR INTO WHICH ALL FLUID EXHAUST AND VENT PASSAGES ARE CONNECTED AT AN INLET POINT BELOW THE TOP OF THE WEIR. FLUID DISCHARGE IN EXCESS OF THE RESERVOIR VOLUME SPILLS OVER THE WEIR INTO A RETURN LINE WHERE IT IS RETURNED TO THE FUEL TANK.
Inventors
- 👤 Donald F Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:53
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/003; F15C1/002; Y; Y10; Y10S; Y10S123/00; Y10S123/10; Y10S261/00; Y10S261/69; Y10T; Y10T137/00; Y10T137/206; Y10T137/212; Y10T137/2125; Y10T137/2142
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |