Patent US3173514A successfully refreshed from Google Patents.
US3173514A
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Impact vibration damper
Assignee: University of Kansas Endowment Association (KU Endowment)
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Filing: 1961-10-04
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Granted: 1965-03-16
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Expires: 1981-10-04
Abstract
No abstract record available.
Inventors
- 👤 James B Tiedemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:38
CPC Classifications
F; F16; F16F; F16F7/00; F16F7/10; F16F7/104; F16F7/112
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A VIBRATION DAMPER COMPRISING A GAS-TIGHT CYLINDRICAL CASING ADAPTED FOR ATTACHMENT TO A BODY, A TUBULAR MEMBER DEFINING AN INTERNAL PASSAGE CENTRALLY DISPOSED WITHIN SAID CASING, AN ANNULAR PISTON OF RELATIVELY HIGH MASS HAVING ITS OUTER WALL FITTED IN GAS-TIGHT, SLIDEABLE RELATION WITH THE INNER WALL OF SAID CASING AND HAVING ITS INNER WALL FITTED IN GAS-TIGHT SLIDEABLE RELATION ON SAID TUBULAR MEMBER, SAID PISTON BEING FREE OF MECHANICAL ATTACHMENT WITH SAID CASING, VALVE OPENING DEFINED IN SAID TUBULAR MEMBER NEAR EACH END THEREOF, SAID OPENINGS BEING SPACED FROM THE END WALLS OF SAID CASING AND ADAPTED TO BE CLOSED OFF BY SAID PISTON WHEREBY SEALED CHAMBERS CAN BE FORMED AT EITHER END OF SAID CASING, AND A COMPRESSIBLE FLUID INCLUDED WITHIN THE CASING WHEREBY MOVEMENT OF SAID PISTON TO CLOSE OFF VALVE OPENINGS AT ONE END OF SAID TUBULAR MEMBER RESULTS IN COMPRESSION OF SAID FLUID WITHIN THE ASSOCIATED CHAMBER.
Claim 2
Dependent Claim
151 words
A VIBRATION DAMPER COMPRISING A GAS-TIGHT CYLINDRICAL CASING ADAPTED FOR ATTACHMENT TO A BODY, A TUBULAR MEMBER DEFINING AN INTERNAL PASSAGE CENTRALLY DISPOSED WITHIN SAID CASING, AN ANNULAR PISTON OF RELATIVELY HIGH MASS HAVING ITS OUTER WALL FITTED IN GAS-TIGHT, SLIDEABLE RELATION WITH THE INNER WALL OF SAID CASING AND HAVING ITS INNER WALL FITTED IN GAS-TIGHT SLIDEABLE RELATION ON SAID TUBULAR MEMBER, SAID PISTON BEING FREE OF MECHANICAL ATTACHMENT WITH SAID CASING, VALVE OPENING DEFINED IN SAID TUBULAR MEMBER NEAR EACH END THEREOF, SAID OPENINGS BEING SPACED FROM THE END WALLS OF SAID CASING AND ADAPTED TO BE CLOSED OFF BY SAID PISTON WHEREBY SEALED CHAMBERS CAN BE FORMED AT EITHER END OF SAID CASING, AND A COMPRESSIBLE FLUID INCLUDED WITHIN THE CASING WHEREBY MOVEMENT OF SAID PISTON TO CLOSE OFF VALVE OPENINGS AT ONE END OF SAID TUBULAR MEMBER RESULTS IN COMPRESSION OF SAID FLUID WITHIN THE ASSOCIATED CHAMBER.
References Cited (Backward Citations)
US2819775A
Cited
US2854100A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |