US3080707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supersonic air diffuser
Assignee: Boeing Co
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Filing: 1956-11-13
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Granted: 1963-03-12
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Expires: 1976-11-13
Abstract
No abstract record available.
Inventors
- 👤 Earl E Vetter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:11
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
123 words
A DIFFUSER FOR REDUCTION OF SUPERSONIC AIR VELOCITIES TO SUBSONIC VELOCITY, AND FOR CONVERSION OF ITS KINETIC ENERGY TO PRESSURE ENERGY, COMPRISING A BARREL-LIKE HOUSING OPEN AT ITS FORWARD END, A SPIKE PROJECTING FORWARDLY FROM WITHIN THE HOUSING AND SPACED FROM THE PERIMETER OF THE OPEN FORWARD END TO DEFINE AN ANNULAR AIR INTAKE ORIFICE, A PLURALITY OF RADIALLY ORIENTED AND LONGITUDINALLY DIRECTED VANES SPACED ANGULARLY ABOUT AND WITHIN THE AIR INTAKE ORIFICE, AND EACH OF GREATER CIRCUMFERENTIAL THICKNESS INTERMEDIATE ITS ENDS THAN AT SUCH ENDS, TO DEFINE A PLURALITY OF CONVERGENT-DIVERGENT DIFFUSERS, EACH INCLUDING A REDUCED THROAT IN THE REGION OF SUCH THICKER PORTIONS AND MEANS TO VARY THE CIRCUMFERENTIAL THICKNESS OF SAID VANES THEREBY TO ALTER THE AREA OF SUCH THROATS.
Claim 2
Dependent Claim
123 words
A DIFFUSER FOR REDUCTION OF SUPERSONIC AIR VELOCITIES TO SUBSONIC VELOCITY, AND FOR CONVERSION OF ITS KINETIC ENERGY TO PRESSURE ENERGY, COMPRISING A BARREL-LIKE HOUSING OPEN AT ITS FORWARD END, A SPIKE PROJECTING FORWARDLY FROM WITHIN THE HOUSING AND SPACED FROM THE PERIMETER OF THE OPEN FORWARD END TO DEFINE AN ANNULAR AIR INTAKE ORIFICE, A PLURALITY OF RADIALLY ORIENTED AND LONGITUDINALLY DIRECTED VANES SPACED ANGULARLY ABOUT AND WITHIN THE AIR INTAKE ORIFICE, AND EACH OF GREATER CIRCUMFERENTIAL THICKNESS INTERMEDIATE ITS ENDS THAN AT SUCH ENDS, TO DEFINE A PLURALITY OF CONVERGENT-DIVERGENT DIFFUSERS, EACH INCLUDING A REDUCED THROAT IN THE REGION OF SUCH THICKER PORTIONS AND MEANS TO VARY THE CIRCUMFERENTIAL THICKNESS OF SAID VANES THEREBY TO ALTER THE AREA OF SUCH THROATS.
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) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |