Patent US3340689A successfully refreshed from Google Patents.
US3340689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbojet bypass engine
Assignee: —
•
Filing: —
•
Granted: 1967-09-12
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Expires: 1984-09-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:57
CPC Classifications
F; F02; F02K; F02K3/00; F02K3/02; F02K3/04; F02K3/06; F02K3/075; F02K3/08; F02K7/00; F02K7/10; F02K7/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
TURBOJET BYPASS ENGINE FOR AN AIRCRAFT, COMPRISING IN COMBINATION, A DUCT SYSTEM INCLUDING AIR DUCT MEANS HAVING A FIRST FRONT INLET AND A FIRST REAR OUTLET, RAMJET BYPASS DUCT MEANS HAVING A SECOND FRONT INLET AND A SECOND REAR OUTLET, COMBUSTION DUCT MEANS CONNECTING SAID AIR DUCT MEANS WITH SAID RAMJET BYPASS DUCT MEANS, AND OVERFLOW DUCT MEANS CONNECTING SAID AIR DUCT MEANS WITH SAID RAMJET BYPASS DUCT MEANS FORWARDLY OF SAID COMBUSTION DUCT MEANS; TURBOJET MEANS LOCATED IN SAID AIR DUCT MEANS FOR PRODUCING A THRUST AT SAID FIRST REAR OUTLET; AND FUEL BURNER MEANS IN SAID COMBUSTION DUCT MEANS FOR PRODUCING A FLOW OF COMBUSTION GASES OUT OF THE SAME, INTO SAID RAMJET BYPASS DUCT MEANS, AND OUT OF SAID SECOND REAR OUTLET SO THAT AIR IS DRAWN BY THE INJECTOR EFFECT OF SAID FLOW OF COMBUSTION GASES THROUGH SAID SECOND FRONT INLET SAID RAMJET BYPASS DUCT MEANS WHILE THE AIRCRAFT IS AT A STANDSTILL OR MOVES AT LOW SPEED.
Claim 2
Dependent Claim
162 words
TURBOJET BYPASS ENGINE FOR AN AIRCRAFT, COMPRISING IN COMBINATION, A DUCT SYSTEM INCLUDING AIR DUCT MEANS HAVING A FIRST FRONT INLET AND A FIRST REAR OUTLET, RAMJET BYPASS DUCT MEANS HAVING A SECOND FRONT INLET AND A SECOND REAR OUTLET, COMBUSTION DUCT MEANS CONNECTING SAID AIR DUCT MEANS WITH SAID RAMJET BYPASS DUCT MEANS, AND OVERFLOW DUCT MEANS CONNECTING SAID AIR DUCT MEANS WITH SAID RAMJET BYPASS DUCT MEANS FORWARDLY OF SAID COMBUSTION DUCT MEANS; TURBOJET MEANS LOCATED IN SAID AIR DUCT MEANS FOR PRODUCING A THRUST AT SAID FIRST REAR OUTLET; AND FUEL BURNER MEANS IN SAID COMBUSTION DUCT MEANS FOR PRODUCING A FLOW OF COMBUSTION GASES OUT OF THE SAME, INTO SAID RAMJET BYPASS DUCT MEANS, AND OUT OF SAID SECOND REAR OUTLET SO THAT AIR IS DRAWN BY THE INJECTOR EFFECT OF SAID FLOW OF COMBUSTION GASES THROUGH SAID SECOND FRONT INLET SAID RAMJET BYPASS DUCT MEANS WHILE THE AIRCRAFT IS AT A STANDSTILL OR MOVES AT LOW SPEED.
References Cited (Backward Citations)
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Cited
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Cited
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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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |