Patent US3559512A successfully refreshed from Google Patents.
US3559512A
Expired / Lapsed
US
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Series vibration damper
Assignee: Milacron Inc
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Filing: 1969-06-27
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Granted: 1971-02-02
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Expires: 1989-06-27
Abstract
Abstract A SERIS BIBRATION DAMPER UNIT FOR A VARIABLE NATURAL FREQUENCY MACHINE TOOL MEMBER WHEREIN A SERIES OR SEVERAL TANDEM SETS OF INDIVIDUAL DAMPERS, EACH COMPRISING A DAMPING MASS EFFECTIVELY SUPPORTED BY TWO VISCOELASTIC ABSORBER ELEMENTS, ARE ARRANGED SO THAT THERE IS EFFECTIVE DAMPING OF SAID MEMBER OVER THE USABLE FREQUENCY RANGE OF SAID VARIABLE NUTURAL FREQUENCY MEMBER.
Inventors
- 👤 Trilok C Aggarwal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:56
CPC Classifications
F; F16; F16F; F16F7/00; F16F7/10; B; B23; B23B; B23B29/00; B23B29/02; B23B29/022; Y; Y10; Y10T; Y10T408/00; Y10T408/76
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |