US3249912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromechanical transducer
Assignee: General Dynamics Corp
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Filing: 1962-08-08
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Granted: 1966-05-03
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Expires: 1982-08-08
Abstract
No abstract record available.
Inventors
- 👤 Helmut J Straube
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:53
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/06; B06B1/0644; B06B1/0651
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A TRANSDUCER COMPRISING AT LEAST ONE PAIR OF PLATES EXHIBITING ELECTROMECHANICAL TRANSDUCING ACTION, SPACER MEANS FOR MOUNTING SAID PAIR OF PLATES IN SPACED RELATIONSHIP, SAID SPACER MEANS INCLUDING A RIGID MEMBER DISPOSED ADJACENT THE PERIPHERY OF SAID PLATES AND HAVING A RIGID PORTION OF SUBSTANTIALLY CIRCULAR CROSS-SECTION, ONE FACE OF EACH OF SAID PLATES BEING POSITIONED IN COOPERATIVE RELATIONSHIP WITH SAID MEMBER SO THAT SAID ONE FACE OF EACH OF SAID PLATES ROCK RELATIVE TO SAID CIRCULAR CROSS SECTION OF SAID RIGID PORTION, SAID SPACER MEANS PROVIDING LIMITED COMPLIANCE IN A DIRECTION SUBSTANTIALLY NORMAL TO SAID ONE FACE OF EACH OF SAID PLATES AND COMPARATIVELY UNLIMITED COMPLIANCE IN A DIRECTION SUBSTANTIALLY PARALLEL TO SAID ONE FACE OF EACH OF SAID PLATES.
Claim 2
Dependent Claim
121 words
A TRANSDUCER COMPRISING AT LEAST ONE PAIR OF PLATES EXHIBITING ELECTROMECHANICAL TRANSDUCING ACTION, SPACER MEANS FOR MOUNTING SAID PAIR OF PLATES IN SPACED RELATIONSHIP, SAID SPACER MEANS INCLUDING A RIGID MEMBER DISPOSED ADJACENT THE PERIPHERY OF SAID PLATES AND HAVING A RIGID PORTION OF SUBSTANTIALLY CIRCULAR CROSS-SECTION, ONE FACE OF EACH OF SAID PLATES BEING POSITIONED IN COOPERATIVE RELATIONSHIP WITH SAID MEMBER SO THAT SAID ONE FACE OF EACH OF SAID PLATES ROCK RELATIVE TO SAID CIRCULAR CROSS SECTION OF SAID RIGID PORTION, SAID SPACER MEANS PROVIDING LIMITED COMPLIANCE IN A DIRECTION SUBSTANTIALLY NORMAL TO SAID ONE FACE OF EACH OF SAID PLATES AND COMPARATIVELY UNLIMITED COMPLIANCE IN A DIRECTION SUBSTANTIALLY PARALLEL TO SAID ONE FACE OF EACH OF SAID PLATES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |