Patent US3371481A successfully refreshed from Google Patents.
US3371481A
Expired / Lapsed
US
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Fuel systems for gas turbine engines
Assignee: ZF International UK Ltd
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Filing: 1966-11-08
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Granted: 1968-03-05
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Expires: 1986-11-08
Abstract
No abstract record available.
Inventors
- 👤 Warue Eugene Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:07
CPC Classifications
F; F02; F02C; F02C9/00; F02C9/26; F02C9/16; F02C9/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
AN ACCELERATION CONTROL FOR A GAS TURBINE ENGINE FUEL SYSTEM COMPRISING A THROTTLE, A MANUAL CONTROL FOR THE THROTTLE, A FURTHER DEVICE ALSO FOR CONTROLLING THE THROTTLE, SAID FURTHER DEVICE BEING RESPONSIVE TO CHANGES IN PRESSURE CONDITIONS WITHIN THE ENGING WITH WHICH THE SYSTEM IS ASSOCIATED, A CAM CONNECTED TO THE THROTTLE SO AS TO BE MOVABLE THEREWITH, A SPRING ACTING BETWEEN THE CAM AND A VALVE MEMBER, MEANS RESPONSIVE TO CHANGES IN THE SPEED OF THE ENGINE AND ACTING UPON THE VALVE MEMBER IN OPPOSITION TO THE SPRING, THE VALVE MEMBER BEING ARRANGED TO MODIFY THE RESPONSE TO SAID PRESSURE CONDITIONS UPON THE FURTHER DEVICE FOR CONTROLLING THE THROTTLE.
Claim 2
Dependent Claim
110 words
AN ACCELERATION CONTROL FOR A GAS TURBINE ENGINE FUEL SYSTEM COMPRISING A THROTTLE, A MANUAL CONTROL FOR THE THROTTLE, A FURTHER DEVICE ALSO FOR CONTROLLING THE THROTTLE, SAID FURTHER DEVICE BEING RESPONSIVE TO CHANGES IN PRESSURE CONDITIONS WITHIN THE ENGING WITH WHICH THE SYSTEM IS ASSOCIATED, A CAM CONNECTED TO THE THROTTLE SO AS TO BE MOVABLE THEREWITH, A SPRING ACTING BETWEEN THE CAM AND A VALVE MEMBER, MEANS RESPONSIVE TO CHANGES IN THE SPEED OF THE ENGINE AND ACTING UPON THE VALVE MEMBER IN OPPOSITION TO THE SPRING, THE VALVE MEMBER BEING ARRANGED TO MODIFY THE RESPONSE TO SAID PRESSURE CONDITIONS UPON THE FURTHER DEVICE FOR CONTROLLING THE THROTTLE.
References Cited (Backward Citations)
US2668415A
Cited
US2941602A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |