Patent US3280561A successfully refreshed from Google Patents.
US3280561A
Expired / Lapsed
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Thrust reverser mechanism
Assignee: General Electric Co
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Filing: 1965-06-07
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Granted: 1966-10-25
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Expires: 1985-06-07
Abstract
No abstract record available.
Inventors
- 👤 John T Kutney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:37
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/54; F02K1/64; F02K1/68; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
IN A JET PROPULSION POWERPLANT OF A FAN TYPE HAVING A JET ENGINE ENCLOSED WITHIN AN INNER AND DOWNSTREAM CONVERGING WALL AND A FAN CONCENTRIC THEREWITH EXTENDING RADIALLY BEYOND SAID WALL AND SURROUNDED BY A COWLING ENDING UPSTREAM OF SAID CONVERGING WALL AND FORMING A BY-PASS DUCT THEREWITH, THRUST REVERSER MECHANISM COMPRISING, A PLURALITY OF PERIPHERAL DISPOSED BLOCKER FLAPS PIVOTED AT ONE END TO SAID CONVERGING WALL DOWNSTREAM OF THE END OF SAID COWLING, ACTUATION MEANS FOR ROTATIG SAID FLAPS INTO EXTENDED POSITION TO INTERCEPT THE FLOW THROUGH SAID DUCT, SHROUD MEANS ON THE OTHER END OF SAID FLAPS AND EXTENDING SUBSTANTIALLY PARALLEL TO THE DUCT FLOW AND UPSTREAM OF SAID EXTENDED FLAPS TO REVERSE THE BLOCKED FLOW, SAID SHROUD MEANS EXTENDING NOT LESS THAN FIVE PERCENT OF SAID FLAP LENGTH, SAID SHROUD MEANS AND COWL END FORMING A THROAT SUBSTANTIALLY EQUAL IN AREA TO THE BY-PASS DUCT WHEN SAID FLAPS ARE IN EXTENDED POSITION, AND RECESS MEANS IN THE WALL TO HOLD SAID FLAPS IN RETRACTED POSITION.
Claim 2
Dependent Claim
168 words
IN A JET PROPULSION POWERPLANT OF A FAN TYPE HAVING A JET ENGINE ENCLOSED WITHIN AN INNER AND DOWNSTREAM CONVERGING WALL AND A FAN CONCENTRIC THEREWITH EXTENDING RADIALLY BEYOND SAID WALL AND SURROUNDED BY A COWLING ENDING UPSTREAM OF SAID CONVERGING WALL AND FORMING A BY-PASS DUCT THEREWITH, THRUST REVERSER MECHANISM COMPRISING, A PLURALITY OF PERIPHERAL DISPOSED BLOCKER FLAPS PIVOTED AT ONE END TO SAID CONVERGING WALL DOWNSTREAM OF THE END OF SAID COWLING, ACTUATION MEANS FOR ROTATIG SAID FLAPS INTO EXTENDED POSITION TO INTERCEPT THE FLOW THROUGH SAID DUCT, SHROUD MEANS ON THE OTHER END OF SAID FLAPS AND EXTENDING SUBSTANTIALLY PARALLEL TO THE DUCT FLOW AND UPSTREAM OF SAID EXTENDED FLAPS TO REVERSE THE BLOCKED FLOW, SAID SHROUD MEANS EXTENDING NOT LESS THAN FIVE PERCENT OF SAID FLAP LENGTH, SAID SHROUD MEANS AND COWL END FORMING A THROAT SUBSTANTIALLY EQUAL IN AREA TO THE BY-PASS DUCT WHEN SAID FLAPS ARE IN EXTENDED POSITION, AND RECESS MEANS IN THE WALL TO HOLD SAID FLAPS IN RETRACTED POSITION.
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) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |