US3263931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silencers for jet engines
Assignee: Safran Aircraft Engines SAS
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Filing: 1964-07-30
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Granted: 1966-08-02
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Expires: 1984-07-30
Abstract
No abstract record available.
Inventors
- 👤 Bartek Joseph
- 👤 Anton F Nagelschmidt
- 👤 Ranvier Gaston Jean-Louis
- 👤 Richter Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:53
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
81 words
A DEVICE FOR REDUCING NOISE ARISING FROM A SUPERSONIC JET EMITTED BY A NOZZLE, COMPRISING A PLURALITY OF TUBES THE EACH HAVING AN INLET END WHICH IS SUBJECTED TO THE AMBIENT PRESSURE ADJACENT TO THE EXTERNAL PERIPHERY OF THE NOZZLE, AND AN OUTLET END WHICH OPENS INTO THE JET AT A POINT SUBSTANTIALLY SPACED DOWNWSTREAM OF THE NOZZLE, AND RETRACTING MEANS FOR MOVING SAID TUBES AWAY FROM THE AXIS OF THE JET AT WILL, AT LEAST AT THEIR OUTLET END PORTIONS.
Claim 2
Independent Claim
81 words
A DEVICE FOR REDUCING NOISE ARISING FROM A SUPERSONIC JET EMITTED BY A NOZZLE, COMPRISING A PLURALITY OF TUBES THE EACH HAVING AN INLET END WHICH IS SUBJECTED TO THE AMBIENT PRESSURE ADJACENT TO THE EXTERNAL PERIPHERY OF THE NOZZLE, AND AN OUTLET END WHICH OPENS INTO THE JET AT A POINT SUBSTANTIALLY SPACED DOWNWSTREAM OF THE NOZZLE, AND RETRACTING MEANS FOR MOVING SAID TUBES AWAY FROM THE AXIS OF THE JET AT WILL, AT LEAST AT THEIR OUTLET END PORTIONS.
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |