Patent US3174589A successfully refreshed from Google Patents.
US3174589A
Expired / Lapsed
US
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Slender structure
Assignee: Sulzer AG
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Filing: 1961-05-01
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Granted: 1965-03-23
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Expires: 1981-05-01
Abstract
No abstract record available.
Inventors
- 👤 Chen Yian-Nian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:56
CPC Classifications
B; B62; B62M; B62M7/00; E; E04; E04H; E04H12/00; E04H12/28; E04H9/00; E04H9/02; E04H9/021; E04H9/0215; F; F16; F16F; F16F7/00; F16F7/10; F23; F23J; F23J11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
IN A RELATIVELY ELONGATED VERTICAL STRUCTURE FIXED AT THE LOWER END AND FREE TO OSCILLATE AT THE UPPER END ON BEING SUBJECTED TO A BENDING STRESS, THE COMBINATION WITH THE FREE UPPPER END OF SAID STRUCTURE OF OSCILLATION DAMPING MEANS,SAID DAMPING MEANS COMPRISING A MASS SUPPORTED ON AND IN MECHANICAL AND DRY FRICTIONAL ENGAGEMENT WITH THE FREE END OF SAID STRUCTURE, SAID MASS BEING FREE TO MOVE RELATIVE TO SAID STRUCTURE WHEN THE LATTER OSCILLATES FROM THE VERTICAL THEREBY TO CONVERT AT LEAST PART OF THE ENERGY OF SAID OSCILLATION TO DRY MECHANICAL FRICTION AND EFFECT THE DESIRED DAMPING.
Claim 2
Dependent Claim
99 words
IN A RELATIVELY ELONGATED VERTICAL STRUCTURE FIXED AT THE LOWER END AND FREE TO OSCILLATE AT THE UPPER END ON BEING SUBJECTED TO A BENDING STRESS, THE COMBINATION WITH THE FREE UPPPER END OF SAID STRUCTURE OF OSCILLATION DAMPING MEANS,SAID DAMPING MEANS COMPRISING A MASS SUPPORTED ON AND IN MECHANICAL AND DRY FRICTIONAL ENGAGEMENT WITH THE FREE END OF SAID STRUCTURE, SAID MASS BEING FREE TO MOVE RELATIVE TO SAID STRUCTURE WHEN THE LATTER OSCILLATES FROM THE VERTICAL THEREBY TO CONVERT AT LEAST PART OF THE ENERGY OF SAID OSCILLATION TO DRY MECHANICAL FRICTION AND EFFECT THE DESIRED DAMPING.
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) | 1968-03-22 | 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 |