US3123728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibratory apparatus with variable frequency and amplitude
Assignee: —
•
Filing: —
•
Granted: 1964-03-03
•
Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:27
CPC Classifications
H; H02; H02K; H02K33/00; H02K33/18
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
109 words
AN OSCILLATORY MECHANICAL DEVICE OF CONTINUOUSLY CHANGEABLE OSCILLATION FREQUENCY AND AMPLITUDE FOR SHAKE TABLES, MATERIAL TESTING APPARATUS AND OTHER OSCILLATORY MACHINERY, COMPRISING A SUPPORT, A CIRCULAR SPRING DISC PERIPHERALLY CLAMPED TO SAID SUPPORT, A MASS STRUCTURE CONNECTED WITH SAID SPRING DISC AT THE CENTER THEREOF AND FORMING TOGETHER WITH SAID DISC AN OSCILLATORY SYSTEM WHOSE OSCILLATION AXIS IS COINCIDENT WITH THE CENTER AXIS OF SAID DISC, EXCITATION MEANS CONNECTED WITH SAID MASS FOR EXCITING SAID SYSTEM TO OSCILLATIONS, SAID SUPPORT HAVING A RIGID MEMBER ADJACENT TO SAID SPRING DISC, SAID MEMBER AND SAID DISC HAVING RESPECTIVE COAXIAL AREAS CURVED AWAY FROM EACH OTHER SO AS TO HAVE THEIR GREATEST
References Cited (Backward Citations)
US2336930A
Cited
US2846598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |