Patent US3304773A successfully refreshed from Google Patents.
US3304773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Force transducer
Assignee: Individual
•
Filing: 1964-03-26
•
Granted: 1967-02-21
•
Expires: 1984-03-26
Abstract
No abstract record available.
Inventors
- 👤 Vernon L Rogallo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:07
CPC Classifications
G; G01; G01G; G01G3/00; G01G3/12; G01G3/13; G01G21/00; G01G21/24; G01G21/244; G01G3/14; G01G3/1402; G01G3/1412; Y; Y10; Y10S; Y10S73/00; Y10S73/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A FORCE TRANSDUCER COMPRISING A SUPPORT, AN ATTACHMENT MEMBER, A FLEXIBLE PIEZOELECTRIC BEAM HAVING ITS ENDS SECURED NORMAL TO SAID SUPPORT AND SAID ATTACHMENT MEMBER, RESPECTIVELY, SAID ATTACHMENT MEMBER HAVING A LONGITUDINAL AXIS AT THE PORTION WHEREIN SAID BEAM IS SECURED, ELECTRODES SECURED TO OPPOSITE FACES OF SAID BEAM, A TARGET FOR RECEIVING IMPINGING FORCES, SAID TARGET BEING SUPPORTED BY SAID ATTACHMENT MEMBER AND THE CENTER OF MASS OF SAID TARGET BEING POSITIONED ON THE PERPENDICULAR BISECTOR OF SAID BEAM, SAID IMPINING FORCES CAUSING COMPOUND FLEXURE OF SAID BEAM, MOTION OF SAID TARGET AND SAID ATTACHMENT MEMBER AND VOLTAGES AT SAID ELECTRODES, AND SAID LONGITUDINAL AXIS REMAINING PERPENDICULAR TO SAID BEAM END SECURED THERETO AS SAID ATTACHMENT MEMBER IS MOVED.
Claim 2
Dependent Claim
120 words
A FORCE TRANSDUCER COMPRISING A SUPPORT, AN ATTACHMENT MEMBER, A FLEXIBLE PIEZOELECTRIC BEAM HAVING ITS ENDS SECURED NORMAL TO SAID SUPPORT AND SAID ATTACHMENT MEMBER, RESPECTIVELY, SAID ATTACHMENT MEMBER HAVING A LONGITUDINAL AXIS AT THE PORTION WHEREIN SAID BEAM IS SECURED, ELECTRODES SECURED TO OPPOSITE FACES OF SAID BEAM, A TARGET FOR RECEIVING IMPINGING FORCES, SAID TARGET BEING SUPPORTED BY SAID ATTACHMENT MEMBER AND THE CENTER OF MASS OF SAID TARGET BEING POSITIONED ON THE PERPENDICULAR BISECTOR OF SAID BEAM, SAID IMPINING FORCES CAUSING COMPOUND FLEXURE OF SAID BEAM, MOTION OF SAID TARGET AND SAID ATTACHMENT MEMBER AND VOLTAGES AT SAID ELECTRODES, AND SAID LONGITUDINAL AXIS REMAINING PERPENDICULAR TO SAID BEAM END SECURED THERETO AS SAID ATTACHMENT MEMBER IS MOVED.
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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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |