US3422625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jet engine with an axial flow supersonic compressor
Assignee: Garrett Corp
•
Filing: 1966-08-05
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Granted: 1969-01-21
•
Expires: 1986-08-05
Abstract
No abstract record available.
Inventors
- 👤 Edward N Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:48
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/32; F04D29/321; F04D29/322; F04D29/323; F02; F02C; F02C3/00; F02C3/04; F02C3/06; F02K; F02K7/00; F02K7/10; F02K7/16; F04D19/00; F04D19/02; F04D19/022; F04D21/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
133 words
A JET ENGINE COMPRISING: A TUBULAR HOUSING, A NOSE CONE DISPOSED COAXIAL WITH SAID TUBULAR HOUSING AND FORMING AN ANNULAR PASSAGEWAY BETWEEN THE NOSE CONE AND THE HOUSING, AN AXIAL FLOW COMPRESSOR HAVING TWO ROTORS DISPOSED COI AXIALLY AND FACE TO FACE AND HAVING A PLURALITY OF BLADES EXTENDING RADIALLY FROM EACH ROTOR, SAID COMPRESSOR BEING DISPOSED WITHIN SAID HOUSING, SAID ANNULAR PASSAGEWAY EXTENDING FROM THE FORWARD END OF SAID HOUSING TO SAID BLADES AND HAVING A FIXED, SUBSTANTIALLY CONSTANT CROSS-SECTIONAL AREA, MEANS ON EACH OF SAID ROTORS FOR CHANGING THE PITCH OF THE RESPECTIVE BLADES THEREON INDEPENDENTLY OF THE ROTATIONAL SPEED OF THE RESPECTIVE ROTOR AND INDEPENDENTLY OF THE PITCH ON THE BLADES ON THE OTHER ROTOR, AND MEANS FOR ROTATING BOTH ROTORS IN OPPOSITE DIRECTIONS ABOUT THE AXIS OF SAID HOUSING.
Claim 2
Dependent Claim
133 words
A JET ENGINE COMPRISING: A TUBULAR HOUSING, A NOSE CONE DISPOSED COAXIAL WITH SAID TUBULAR HOUSING AND FORMING AN ANNULAR PASSAGEWAY BETWEEN THE NOSE CONE AND THE HOUSING, AN AXIAL FLOW COMPRESSOR HAVING TWO ROTORS DISPOSED COI AXIALLY AND FACE TO FACE AND HAVING A PLURALITY OF BLADES EXTENDING RADIALLY FROM EACH ROTOR, SAID COMPRESSOR BEING DISPOSED WITHIN SAID HOUSING, SAID ANNULAR PASSAGEWAY EXTENDING FROM THE FORWARD END OF SAID HOUSING TO SAID BLADES AND HAVING A FIXED, SUBSTANTIALLY CONSTANT CROSS-SECTIONAL AREA, MEANS ON EACH OF SAID ROTORS FOR CHANGING THE PITCH OF THE RESPECTIVE BLADES THEREON INDEPENDENTLY OF THE ROTATIONAL SPEED OF THE RESPECTIVE ROTOR AND INDEPENDENTLY OF THE PITCH ON THE BLADES ON THE OTHER ROTOR, AND MEANS FOR ROTATING BOTH ROTORS IN OPPOSITE DIRECTIONS ABOUT THE AXIS OF SAID HOUSING.
Claim 3
Dependent Claim
59 words
THE JET ENGINE OF CLAIM 1 WHEREIN: AN INTERNAL NOZZLE MEMBER IS DISPOSED AFT OF SAID COMPRESSOR AND PROTRUDING FROM THE REARWARD END OF SAID HOUSING FORMING AN ANNULAR NOZZLE PASSAGEWAY BETWEEN THE INTERNAL NOZZLE MEMBER AND THE HOUSING, AND SAID HOUSING INCLUDES MOVEABLE PORTIONS TO VARY AREAL OPENING OF SAID ANNULAR NOZZLE PASSAGEWAY TO MAXIMIZE THE PRODUCED THRUST.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |