US3242671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fixed spike inlet with variable throat and capture area
Assignee: Boeing Co
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Filing: 1964-04-08
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Granted: 1966-03-29
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Expires: 1984-04-08
Abstract
No abstract record available.
Inventors
- 👤 James R Moorehead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:19
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
88 words
A VARIABLE INLET COMPRISING, (A) A CONICAL WALL, (B) A CYLINDRICAL WALL FIXED RELATIVE TO SAID CONICAL WALL AND HAVING A TRANSLATING LIP AND PIVOTAL BELLMOUTH PETAL MEANS, AND (C) SAID TRANSLATING LIP BEING LONGITUDINALLY ADJUSTABLE RELATIVE TO SAID CYLINDRICAL WALL, SAID CONICAL WALL BEING POSITIONED COAXIAL WITH SAID TRANSLATING LIP AND SAID PIVOTAL BELL-MOUTH PETAL MEANS FOR FORMING AN ANNULAR VARIABLE AREA DUCT THEREBETWEEN WHEREBY THE AREA OF SAID ANNULAR DUCT IS VARIABLE BY LONGITUDINAL ADJUSTMENT OF SAID TRANSLATING LIP AND BY PIVOTING OF SAID PETAL MEANS.
Claim 2
Dependent Claim
88 words
A VARIABLE INLET COMPRISING, (A) A CONICAL WALL, (B) A CYLINDRICAL WALL FIXED RELATIVE TO SAID CONICAL WALL AND HAVING A TRANSLATING LIP AND PIVOTAL BELLMOUTH PETAL MEANS, AND (C) SAID TRANSLATING LIP BEING LONGITUDINALLY ADJUSTABLE RELATIVE TO SAID CYLINDRICAL WALL, SAID CONICAL WALL BEING POSITIONED COAXIAL WITH SAID TRANSLATING LIP AND SAID PIVOTAL BELL-MOUTH PETAL MEANS FOR FORMING AN ANNULAR VARIABLE AREA DUCT THEREBETWEEN WHEREBY THE AREA OF SAID ANNULAR DUCT IS VARIABLE BY LONGITUDINAL ADJUSTMENT OF SAID TRANSLATING LIP AND BY PIVOTING OF SAID PETAL MEANS.
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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |