US3128330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibration damping method and device
Assignee: Ball Damping Devices Inc
•
Filing: 1960-05-05
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Granted: 1964-04-07
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Expires: 1980-05-05
Abstract
No abstract record available.
Inventors
- 👤 Arthur P Grasser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:18
CPC Classifications
H; H02; H02G; H02G7/00; H02G7/14
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
117 words
IN A VIBRATION DAMPING DEVICE FOR THE SPAN OF A LONGITUDINAL VIBRATORY MEMBER HAVING A PAIR OF SPACED SUPPORT TERMINALS AND HAVING A DOMINANT NATURAL FREQUENCY AND WAVE LENGTH OF VIBRATION, THE COMBINATION OF A PAIR OF LONGITUDINALLY SPACED CONNECTORS SECURED ON THE SPAN OF SAID MEMBER INTERMEDIATE SAID SUPPORT TERMINALS TO DEFINE A TRAP ZONE BETWEEN SAID CONNECTORS, STRESS TRANSFER MEANS SECURED BETWEEN SAID CONNECTORS FOR MECHANICALLY FORCING A CHANGE IN THE STRESS IN SAID TRAP ZONE OF SAID MEMBER TO A VALUE DIFFERENT THAN THE STRESS IN SAID MEMBER EXTERNAL TO SAID ZONE, AND MEANS RESPONSIVE TO SAID STRESS TRANSFER MEANS FOR INTRODUCING A RADIAL COMPONENT OF FORCE ON SAID MEMBER IN SAID TRAP ZONE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |