Patent US3121218A successfully refreshed from Google Patents.
US3121218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety flight flutter damper
Assignee: Individual
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Filing: 1963-03-21
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Granted: 1964-02-11
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Expires: 1983-03-21
Abstract
No abstract record available.
Inventors
- 👤 Hallinan Mark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:44
CPC Classifications
G; G01; G01M; G01M9/00; G01M9/02; G01M9/04; G05; G05D; G05D1/00; G05D1/0055; G05D1/0066
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
IN AN AIRCRAFT HAVING A MOUNTING BEAM, AN ENGINE MOUNTED ON SAID MOUNTING BEAM, SUPPORTS POSITIONED BETWEEN SAID ENGINE AND SAID MOUNTING BEAM, THE IMPROVEMENT COMPRISING; A PLURALITY OF FLUTTER INDICATING AND DAMPING SUPPORTS MOUNTED BETWEEN SAID ENGINE AND SAID MOUNTING BEAM WITH THE AXIS OF EACH AT RIGHT ANGLES TO THE OTHER, EACH OF SAID FLUTTER INDICATING AND DAMPING SUPPORTS HAVING A HOUSING WITH A MOUNTING APERTURE LOCATED AT ONE END THEREOF, A CENTRALLY LOCATED BORE EXTENDING INTO SAID HOUSING FROM SAID OTHER END, A PLURALITY OF FINS ARRANGED ABOUT THE OUTER PORTION OF SAID HOUSING, PISTON MEANS OPERABLY MOUNTED WITHIN SAID BORE, SAID PISTON MEANS FIXEDLY SECURED AT ONE END TO SAID MOUNTING BEAM,
Claim 2
Dependent Claim
116 words
IN AN AIRCRAFT HAVING A MOUNTING BEAM, AN ENGINE MOUNTED ON SAID MOUNTING BEAM, SUPPORTS POSITIONED BETWEEN SAID ENGINE AND SAID MOUNTING BEAM, THE IMPROVEMENT COMPRISING; A PLURALITY OF FLUTTER INDICATING AND DAMPING SUPPORTS MOUNTED BETWEEN SAID ENGINE AND SAID MOUNTING BEAM WITH THE AXIS OF EACH AT RIGHT ANGLES TO THE OTHER, EACH OF SAID FLUTTER INDICATING AND DAMPING SUPPORTS HAVING A HOUSING WITH A MOUNTING APERTURE LOCATED AT ONE END THEREOF, A CENTRALLY LOCATED BORE EXTENDING INTO SAID HOUSING FROM SAID OTHER END, A PLURALITY OF FINS ARRANGED ABOUT THE OUTER PORTION OF SAID HOUSING, PISTON MEANS OPERABLY MOUNTED WITHIN SAID BORE, SAID PISTON MEANS FIXEDLY SECURED AT ONE END TO SAID MOUNTING BEAM,
References Cited (Backward Citations)
US2845503A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-10 | 1967-08-12 | 1968-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-10 | 1971-08-12 | 1972-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-10 | 1975-08-12 | 1976-02-11 | $7700.00 | Window Closed / Lapsed |