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Patent US3174282A successfully refreshed from Google Patents.
US3174282A
Expired / Lapsed
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Asymmetrical jet nozzle noise suppressor
Assignee: Teledyne Ryan Aeronautical Corp
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Filing: 1963-04-19
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Granted: 1965-03-23
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Expires: 1983-04-19
Abstract
No abstract record available.
Inventors
- 👤 Verne S Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:22
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/36; F02K1/44; F02K1/46; F02K1/48
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
118 words
IN A JET AIRCRAFT, A HORIZONTALLY DISPOSED JET ENGINE HAVING A GAS CONDUCTING EXHAUST NOZZLE; A NOISE SUPPRESSOR COMPRISING AN ANNULAR ASPIRATOR RING GENERALLY CONCENTRIC WITH AND SPACED SLIGHTLY DOWNSTREAM OF SAID NOZZLE TO DEFINE A PRIMARY ANNULAR THROAT THEREBETWEEN; THE LOWER PORTION ONLY OF SAID ASPIRATOR RING BEING DIVIDED AND HAVING AT LEAST ONE SECONDARY THROAT SUBSTANTIALLY COEXTENSIVE WITH SAID PRIMARY THROAT; WHEREBY THE AIR SURROUNDING SAID NOZZLE IS DRAWN THROUGH SAID PRIMARY THROAT TO MIX WITH THE EXHAUST GAS STREAM, AND ADDITIONAL AIR IS DRAWN THROUGH SAID SECONDARY THROAT TO MIX WITH THE LOWER PORTION OF THE EXHAUST GAS STREAM FOR MAINTAING BALANCED THRUST WHILE REDUCING THE NOISE GENERATED BY AND RADIATED FROM SAID LOWER PORTION.
References Cited (Backward Citations)
GB653544A
Cited
US2812636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |