Patent US3128330A successfully refreshed from Google Patents.
US3128330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibration damping method and device
Assignee: Ball Damping Devices Inc
•
Filing: 1960-05-05
•
Granted: 1964-04-07
•
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
2026-11-08 06:30
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.
References Cited (Backward Citations)
US470382A
Cited
US1319374A
Cited
US1676006A
Cited
GB338304A
Cited
US1997154A
Cited
US1965494A
Cited
US2065490A
Cited
GB466024A
Cited
US2136238A
Cited
US2374823A
Cited
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 |