Patent US2467856A successfully refreshed from Google Patents.
US3430640A
Expired / Lapsed
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Supersonic inlet
Assignee: General Electric Co
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Filing: 1964-02-17
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Granted: 1969-03-04
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Expires: 1984-02-17
Abstract
No abstract record available.
Inventors
- 👤 Dean J Lennard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:19
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/04; F02C7/042; Y; Y10; Y10T; Y10T137/00; Y10T137/0536
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
IN A JET ENGINE AIR INTAKE FOR SUPERSONIC AIRCRAFT HAVING A LONGITUDINAL AXIS AND INCLUDING A PLURALITY OF TRANSVERSE, SPACED RELATIVELY MOVABLE WALL MEMBERS FORMING A PRIMARY INTAKE PASSAGE CONVERGING TO A THROAT AREA AND THEREAFTER DIVERGING IN A DIFFIUSER PORTION TO THE ENGINE INLET, MEANS FOR VARYING THE AIR INTAKE CONTRACTION RATIO BY MOVEMENT OF SAID WALL MEMBERS AND INCLUDING A GAP FORMED BETWEEN ADJACENT WALL MEMBERS, SAID GAP BEING VARIABLE IN AREA TO REGULATE EXTERNAL BYPASS FLOW OVER A WIDE RANGE OF OPERATING MACH NUMBERS TO ENHANCE INTAKE PRESSURE RECOVERY, AND MEANS FOR RE-ROUTING AT LEAST A PORTION OF THE BYPASS FLOW FROM SAID GAP BACK INTO THE PRIMARY PASSAGE FOR IMPROVED OFF-DESIGN OPERATION.
Claim 2
Dependent Claim
116 words
IN A JET ENGINE AIR INTAKE FOR SUPERSONIC AIRCRAFT HAVING A LONGITUDINAL AXIS AND INCLUDING A PLURALITY OF TRANSVERSE, SPACED RELATIVELY MOVABLE WALL MEMBERS FORMING A PRIMARY INTAKE PASSAGE CONVERGING TO A THROAT AREA AND THEREAFTER DIVERGING IN A DIFFIUSER PORTION TO THE ENGINE INLET, MEANS FOR VARYING THE AIR INTAKE CONTRACTION RATIO BY MOVEMENT OF SAID WALL MEMBERS AND INCLUDING A GAP FORMED BETWEEN ADJACENT WALL MEMBERS, SAID GAP BEING VARIABLE IN AREA TO REGULATE EXTERNAL BYPASS FLOW OVER A WIDE RANGE OF OPERATING MACH NUMBERS TO ENHANCE INTAKE PRESSURE RECOVERY, AND MEANS FOR RE-ROUTING AT LEAST A PORTION OF THE BYPASS FLOW FROM SAID GAP BACK INTO THE PRIMARY PASSAGE FOR IMPROVED OFF-DESIGN OPERATION.
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) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |