US3344882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractable silencers and thrust reversers for jet engines
Assignee: Safran Aircraft Engines SAS
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Filing: 1965-06-03
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Granted: 1967-10-03
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Expires: 1985-06-03
Abstract
No abstract record available.
Inventors
- 👤 Bellion Jean-Claude
- 👤 Hoch Rene Gerard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:49
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/54; F02K1/56; F02K1/60; F02K1/38; F02K1/383; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A DEVICE FOR REDUCING THE JET NOISE EMITTED BY THE NOZZLE OF A JET ENGINE, COMPRISING A PLURALITY OF TUBES HAVING DOWNSTREAM ENDS PROJECTING INTO THE JET AT THE REAR OF THE NOZZLE AND UPSTREAM ENDS OPENING OUT ADJACENT THE EXTERNAL PERIPHERY OF THE NOZZLE, AND MEANS FOR SWIVELLING SAID TUBES ABOUT SWIVEL AXES SUBSTANTIALLY PERPENDICULAR TO THE LONGITUDINAL AXIS OF THE NOZZLE AND LOCATED CLOSER TO SAID LONGITUDINAL AXIS THAN SAID TUBES, WHEREBY TO FULLY RETRACT THE LATTER FROM THE JET.
Claim 2
Independent Claim
82 words
A DEVICE FOR REDUCING THE JET NOISE EMITTED BY THE NOZZLE OF A JET ENGINE, COMPRISING A PLURALITY OF TUBES HAVING DOWNSTREAM ENDS PROJECTING INTO THE JET AT THE REAR OF THE NOZZLE AND UPSTREAM ENDS OPENING OUT ADJACENT THE EXTERNAL PERIPHERY OF THE NOZZLE, AND MEANS FOR SWIVELLING SAID TUBES ABOUT SWIVEL AXES SUBSTANTIALLY PERPENDICULAR TO THE LONGITUDINAL AXIS OF THE NOZZLE AND LOCATED CLOSER TO SAID LONGITUDINAL AXIS THAN SAID TUBES, WHEREBY TO FULLY RETRACT THE LATTER FROM THE JET.
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) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |