Patent US3150484A successfully refreshed from Google Patents.
US3150484A
Expired / Lapsed
US
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Gas turbine by-pass engine
Assignee: Rolls Royce PLC
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Filing: 1961-06-29
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Granted: 1964-09-29
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Expires: 1981-06-29
Abstract
No abstract record available.
Inventors
- 👤 Oldfield Thomas Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:36
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/38; F02K1/386; F23; F23R; F23R3/00; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A GAS TURBINE BY-PASS ENGINE COMPRISING A JET PIPE, REHEAT COMBUSTION APPARATUS MOUNTED WITHIN THE JET PIPE FOR REHEATING THE TURBINE EXHAUST GASES FLOWING THERETHROUGH, A BY-PASS PASSAGE MOUNTED ABOUT THE JET PIPE AND ARRANGED TO RECEIVE BY-PASS AIR, AN ANNULAR PASSAGE WHICH IS OPEN AT ITS DOWNSTREAM END AND WHICH SURROUNDS THE JET PIPE, THE ANNULAR PASSAGE CONSTITUTING A DOWNSTREAM CONTINUATION OF THE BY-PASS PASSAGE, A VALVE CONTROLLING FLOW OF BY-PASS AIR FROM SAID BY-PASS PASSAGE, DUCTING ARRANGED ON THE DOWNSTREAM SIDE OF THE VALVE AND HAVING ONE END COMMUNICATING WITH THE INTERIOR OF SAID BY-PASS PASSAGE AND COPPERATING WITH SAID VALVE AND ANOTHER END COMMUNICATING WITH THE INTERIOR OF SAID JET PIPE, SAID DUCTING PROVIDING FOR THE FLOW OF BY-PASS AIR
Claim 2
Dependent Claim
123 words
A GAS TURBINE BY-PASS ENGINE COMPRISING A JET PIPE, REHEAT COMBUSTION APPARATUS MOUNTED WITHIN THE JET PIPE FOR REHEATING THE TURBINE EXHAUST GASES FLOWING THERETHROUGH, A BY-PASS PASSAGE MOUNTED ABOUT THE JET PIPE AND ARRANGED TO RECEIVE BY-PASS AIR, AN ANNULAR PASSAGE WHICH IS OPEN AT ITS DOWNSTREAM END AND WHICH SURROUNDS THE JET PIPE, THE ANNULAR PASSAGE CONSTITUTING A DOWNSTREAM CONTINUATION OF THE BY-PASS PASSAGE, A VALVE CONTROLLING FLOW OF BY-PASS AIR FROM SAID BY-PASS PASSAGE, DUCTING ARRANGED ON THE DOWNSTREAM SIDE OF THE VALVE AND HAVING ONE END COMMUNICATING WITH THE INTERIOR OF SAID BY-PASS PASSAGE AND COPPERATING WITH SAID VALVE AND ANOTHER END COMMUNICATING WITH THE INTERIOR OF SAID JET PIPE, SAID DUCTING PROVIDING FOR THE FLOW OF BY-PASS AIR
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) | 1967-09-29 | 1968-03-30 | 1968-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-29 | 1972-03-30 | 1972-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-29 | 1976-03-30 | 1976-09-29 | $7700.00 | Window Closed / Lapsed |