US3113636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jet noise silencing appartus for an aircraft
Assignee: Rolls Royce PLC
•
Filing: 1960-10-07
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Granted: 1963-12-10
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Expires: 1980-10-07
Abstract
No abstract record available.
Inventors
- 👤 Brown David Morris
- 👤 Spooner Hubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:01
CPC Classifications
B; B64; B64D; B64D27/00; B64D27/02; B64D27/16; B64D27/20; F; F02; F02K; F02K1/00; F02K1/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
AN AIRCRAFT HAVING A FUSELAGE, AT LEAST ONE GAS TURBINE ENGINE, JET NOISE SILENCING APPARATUS DISPOSED AT THE REAR END OF THE FUSELAGE, SAID JET NOISE SILENCING APPARATUS DISCHARGING EXHAUST GASES FROM SAID AT LEAST ONE ENGINE AND COMPRISING AT LEAST ONE PAIR OF HORIZONTALLY SPACED SILENCERS, EACH OF SAID SILENCERS COMPRISING A ROW OF VERTICALLY ALIGNED JET NOZZLES, A DUCT DISPOSED BETWEEN SAID SILENCERS AND HAVING AIR INTAKE MEANS OPENING ON SAID FUSELAGE ADJACENT THE REAR END THEREOF FOR RECEIVING BOUNDARY AIR PROGRESSING ALONG THE SAME, SAID DUCT AND SAID NOZZLES TERMINATING IN SUBSTANTIALLY THE SAME TRANSVERSE PLANE OF THE FUSELAGE SO THAT JETS ISSUING FROM THE ROWS OF VERTICAL NOZZLES ARE SEPARATED BY A RELATIVELY DENSE AND SLOW MOVING STREAM OF FUSELAGE BOUNDARY LAYER AIR.
Claim 2
Dependent Claim
127 words
AN AIRCRAFT HAVING A FUSELAGE, AT LEAST ONE GAS TURBINE ENGINE, JET NOISE SILENCING APPARATUS DISPOSED AT THE REAR END OF THE FUSELAGE, SAID JET NOISE SILENCING APPARATUS DISCHARGING EXHAUST GASES FROM SAID AT LEAST ONE ENGINE AND COMPRISING AT LEAST ONE PAIR OF HORIZONTALLY SPACED SILENCERS, EACH OF SAID SILENCERS COMPRISING A ROW OF VERTICALLY ALIGNED JET NOZZLES, A DUCT DISPOSED BETWEEN SAID SILENCERS AND HAVING AIR INTAKE MEANS OPENING ON SAID FUSELAGE ADJACENT THE REAR END THEREOF FOR RECEIVING BOUNDARY AIR PROGRESSING ALONG THE SAME, SAID DUCT AND SAID NOZZLES TERMINATING IN SUBSTANTIALLY THE SAME TRANSVERSE PLANE OF THE FUSELAGE SO THAT JETS ISSUING FROM THE ROWS OF VERTICAL NOZZLES ARE SEPARATED BY A RELATIVELY DENSE AND SLOW MOVING STREAM OF FUSELAGE BOUNDARY LAYER AIR.
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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) | 1966-12-09 | 1967-06-10 | 1967-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-09 | 1971-06-10 | 1971-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-09 | 1975-06-10 | 1975-12-10 | $7700.00 | Window Closed / Lapsed |