US3308625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine by-pass engine
Assignee: Rolls Royce PLC
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Filing: 1964-09-18
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Granted: 1967-03-14
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Expires: 1984-09-18
Abstract
No abstract record available.
Inventors
- 👤 Shaw William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:09
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/54; F02K1/74; F02K1/56; F02K1/60
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
171 words
A GAS TURBINE BY-PASS ENGINE COMPRISING: A CASING DEFINING A FLOW DUCT; COMPRESSOR MEANS, COMBUSTION EQUIPMENT, AND TURBINE MEANS ARRANGED IN FLOW SERIES IN SAID FLOW DUCT; A SECOND CASING SURROUNDING SAID FIRST CASING AND DEFINING THEREWITH AN ANNULAR BY-PASS DUCT, SAID BY-PASS DUCT HAVING AN UPSTREAM END WHICH RECEIVE BYPASS AIR FROM SAID COMPRESSOR MEANS AND SAID BY-PASS DUCT BY-PASSING SAID COMBUSTION EQUIPMENT AND TURBINE MEANS; AN OUTER CASING AT LEAST PARTLY SURROUNDING SAID SECOND CASING AND DEFINING THEREWITH AN ANNULAR FAN DUCT; A FAN MOUNTED IN SAID FAN DUCT, SAI FAN HAVING A STRUCTURAL CONNECTION TO AND BEING DRIVEN BY SAID TURBINE MEANS; AND AN EXHAUST DUCT HAVING A NOZZLE MOUNTED AT ITS DOWNSTREAM END, THE DOWNSTREAM ENDS OF SAID FLOW DUCT, BY-PASS DUCT AND FAN DUCT ALL TERMINATING SUBSTANTIALLY AT AND ALL COMMUNICATING WITH THE UPSTREAM END OF SAID EXHAUST DUCT WHEREBY THE GASES LEAVING ALL OF THE DOWNSTREAM ENDS OF SAID FLOW DUCT, BY-PASS DUCT AND FAN DUCT SUBSTANTIALLY SIMULTANEOUSLY MIX AND FLOW THROUGH SAID EXHAUST DUCT.
Claim 2
Dependent Claim
171 words
A GAS TURBINE BY-PASS ENGINE COMPRISING: A CASING DEFINING A FLOW DUCT; COMPRESSOR MEANS, COMBUSTION EQUIPMENT, AND TURBINE MEANS ARRANGED IN FLOW SERIES IN SAID FLOW DUCT; A SECOND CASING SURROUNDING SAID FIRST CASING AND DEFINING THEREWITH AN ANNULAR BY-PASS DUCT, SAID BY-PASS DUCT HAVING AN UPSTREAM END WHICH RECEIVE BYPASS AIR FROM SAID COMPRESSOR MEANS AND SAID BY-PASS DUCT BY-PASSING SAID COMBUSTION EQUIPMENT AND TURBINE MEANS; AN OUTER CASING AT LEAST PARTLY SURROUNDING SAID SECOND CASING AND DEFINING THEREWITH AN ANNULAR FAN DUCT; A FAN MOUNTED IN SAID FAN DUCT, SAI FAN HAVING A STRUCTURAL CONNECTION TO AND BEING DRIVEN BY SAID TURBINE MEANS; AND AN EXHAUST DUCT HAVING A NOZZLE MOUNTED AT ITS DOWNSTREAM END, THE DOWNSTREAM ENDS OF SAID FLOW DUCT, BY-PASS DUCT AND FAN DUCT ALL TERMINATING SUBSTANTIALLY AT AND ALL COMMUNICATING WITH THE UPSTREAM END OF SAID EXHAUST DUCT WHEREBY THE GASES LEAVING ALL OF THE DOWNSTREAM ENDS OF SAID FLOW DUCT, BY-PASS DUCT AND FAN DUCT SUBSTANTIALLY SIMULTANEOUSLY MIX AND FLOW THROUGH SAID EXHAUST DUCT.
Claim 3
Dependent Claim
133 words
A GAS TURBINE BY-PASS ENGINE AS CLAIMED IN CLAIM 1 WHEREIN THE EXHAUST DUCT HAS OPENINGS THEREIN, FORWARDLY FACING DEFLECTOR VANES MOUNTED IN SAID OPENINGS TO ASSIST IN DIRECTING THE SAID GASES FORWARDLY; A PLURALITY OF THRUST REVERSER MEMBERS WHICH ARE MOUNTED IN THE EXHAUST DUCT AND WHICH ARE MOVABLE BETWEEN AN INOPERATIVE POSITION IN WHICH THEY PERMIT THE SAID GASES TO FLOW REARWARDLY THROUGH THE SAID NOZZLE AND AN OPERATIVE POSITION IN WHICH THEY PREVENT THE SAID GASES FROM FLOWING REARWARDLY THROUGH THE SAID NOZZLE AND DIRECT THE SAID GASES FORWARDLY THROUGH THE OPENINGS IN THE EXHAUST DUCT, THE SAID OPENINGS BEING MAINTAINED CLOSED WHEN THE THRUST REVERSER MEMBERS ARE IN THEIR INOPERATIVE POSITION, AND POWER MEANS FOR MOVING THE THRUST REVERSER MEMBERS BETWEEN THE SAID INOPERATIVE AND OPERATIVE POSITIONS AS REQUIRED.
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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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |