Patent US3306394A successfully refreshed from Google Patents.
US3306394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile noise suppressor for fan-jet aircraft
Assignee: General Electric Co
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Filing: 1965-11-03
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Granted: 1967-02-28
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Expires: 1985-11-03
Abstract
No abstract record available.
Inventors
- 👤 Charles J Smith
- 👤 Alvin J Brungard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:24
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
JET ENGINE NOISE SUPPRESSOR APPARATUS COMPRISING: AN ELONGATED, GENERALLY TUBULAR BODY MEMBER OPEN AT BOTH ENDS, SAID BODY MEMBER HAVING SOUND ABSORBENT MEANS LOCATED INTERIORLY THEREOF; A MOBILE SUPPORT STRUCTURE FOR SAID BODY MEMBER, WHEREBY SAID BODY MEMBER CAN BE POSITIONED WITH ONE OF ITS ENDS ADJACENT THE TAILPIPE OF A TURBOFAN ENGINE FOR CAPTURING THE PRIMARY EXHAUST GAS STREAM THEREOF; AND MEANS INCLUDING AN OPEN-ENDED, AXIALLY-EXTENDING DUCT MEMBER SURROUNDING SAID BODY MEMBER ADJACENT SAID ONE END THEREOF AND SUBSTANTIALLYCO-AXIAL THEREWITH, SAID DUCT MEMBER BEING SUPPORTED FROM SAID BODY MEMBER FOR RELATIVE AXIAL MOVEMENT WITH RESPECT THERETO, WHEREIN IN ITS FORWARDMOST POSITION SAID DUCT MEMBER IS EFFECTIVE TO CAPTURE THE SECONDARY EXHAUST GAS STREAM OF THE FAN PORTION OF THE TURBOFAN ENGINE AND DIRECT SAME INTO SAID BODY MEMBER FOR COMINGLING WITH SAID PRIMARY GAS STREAM.
Claim 2
Dependent Claim
136 words
JET ENGINE NOISE SUPPRESSOR APPARATUS COMPRISING: AN ELONGATED, GENERALLY TUBULAR BODY MEMBER OPEN AT BOTH ENDS, SAID BODY MEMBER HAVING SOUND ABSORBENT MEANS LOCATED INTERIORLY THEREOF; A MOBILE SUPPORT STRUCTURE FOR SAID BODY MEMBER, WHEREBY SAID BODY MEMBER CAN BE POSITIONED WITH ONE OF ITS ENDS ADJACENT THE TAILPIPE OF A TURBOFAN ENGINE FOR CAPTURING THE PRIMARY EXHAUST GAS STREAM THEREOF; AND MEANS INCLUDING AN OPEN-ENDED, AXIALLY-EXTENDING DUCT MEMBER SURROUNDING SAID BODY MEMBER ADJACENT SAID ONE END THEREOF AND SUBSTANTIALLYCO-AXIAL THEREWITH, SAID DUCT MEMBER BEING SUPPORTED FROM SAID BODY MEMBER FOR RELATIVE AXIAL MOVEMENT WITH RESPECT THERETO, WHEREIN IN ITS FORWARDMOST POSITION SAID DUCT MEMBER IS EFFECTIVE TO CAPTURE THE SECONDARY EXHAUST GAS STREAM OF THE FAN PORTION OF THE TURBOFAN ENGINE AND DIRECT SAME INTO SAID BODY MEMBER FOR COMINGLING WITH SAID PRIMARY GAS STREAM.
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |