Patent US3215172A successfully refreshed from Google Patents.
US3215172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jet engine noise suppressor with shroud for aspiration of air into exhaust stream
Assignee: Individual
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Filing: 1962-12-24
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Granted: 1965-11-02
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Expires: 1982-12-24
Abstract
No abstract record available.
Inventors
- 👤 James R Ardoin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:50
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/02; F02; F02K; F02K1/00; F02K1/36; F02K1/78; F02K1/82; F02K1/827; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A NOISE SUPPRESSOR FOR EXHAUST NOZZLES COMPRISING: A HOLLOW TUBULAR MEMBER HAVING AN UNRESTRICTED INNER SURFACE AFFIXED TO SAIX EXHAUST NOZZLE, SAID TUBULAR MEMBER DEFINING A PLURALITY OF RELIEFS EXTENDING FROM A POINT INTERMEDIATE THE ENDS THEREOF OUTWARDLY TO THE AFTER END THEREOF AND GRADUALLY INCREASING IN AREA FROM SAID INTERMEDIATE POINT TO SAID END; A SHROUD SURROUNDING SAID TUBULAR MEMBER AND EXTENDING ALONG THE LENGTH THEREOF AND TERMINATING SHORT OF THE AFTER END OF SAID TUBULAR MEMBER, SAID SHROUD DEFINING A SUBSTANTIALLY UNRESTRICTED SPACE BETWEEN IT AND THE OUTER SURFACE OF SAID TUBULAR
Claim 2
Dependent Claim
94 words
A NOISE SUPPRESSOR FOR EXHAUST NOZZLES COMPRISING: A HOLLOW TUBULAR MEMBER HAVING AN UNRESTRICTED INNER SURFACE AFFIXED TO SAIX EXHAUST NOZZLE, SAID TUBULAR MEMBER DEFINING A PLURALITY OF RELIEFS EXTENDING FROM A POINT INTERMEDIATE THE ENDS THEREOF OUTWARDLY TO THE AFTER END THEREOF AND GRADUALLY INCREASING IN AREA FROM SAID INTERMEDIATE POINT TO SAID END; A SHROUD SURROUNDING SAID TUBULAR MEMBER AND EXTENDING ALONG THE LENGTH THEREOF AND TERMINATING SHORT OF THE AFTER END OF SAID TUBULAR MEMBER, SAID SHROUD DEFINING A SUBSTANTIALLY UNRESTRICTED SPACE BETWEEN IT AND THE OUTER SURFACE OF SAID TUBULAR
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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |