US3335233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transducer for converting mechanical into electrical oscillations
Assignee: Siemens and Halske AG
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Filing: 1963-11-13
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Granted: 1967-08-08
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Expires: 1983-11-13
Abstract
No abstract record available.
Inventors
- 👤 Zerbst Manfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:57
CPC Classifications
H; H04; H04R; H04R21/00; H04R21/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
AN ELONGATED PIEZORESISTIVE SEMICONDUCTOR BODY FOR A TRANSDUCER FOR CONVERTING MECHANICAL TO ELECTRICAL OSCILLATIONS, SAID BODY BEING DEFORMABLE BY LONGITUDINAL FORCES, SAID BODY HAVING TWO END PORTIONS AND HAVING A MIDDLE PORTION OF SMALLER CROSS SECTION THAN SAID END PORTIONS DETERMINING SUBSTANTIALLY THE MECHANICAL DEFORMATION AND ELECTRIC RESISTANCE OF SAID SEMICONDUCTOR BODY, SAID RESPECTIVE END PORTIONS TAPERING TOWARD SAID MIDDLE PORTION FOR INCREASED BUCKLING STRENGTH SO THAT RELATIVELY SMALL FORCES PRODUCE DISCRENIBLE DEFORMATIONS.
Claim 2
Dependent Claim
73 words
AN ELONGATED PIEZORESISTIVE SEMICONDUCTOR BODY FOR A TRANSDUCER FOR CONVERTING MECHANICAL TO ELECTRICAL OSCILLATIONS, SAID BODY BEING DEFORMABLE BY LONGITUDINAL FORCES, SAID BODY HAVING TWO END PORTIONS AND HAVING A MIDDLE PORTION OF SMALLER CROSS SECTION THAN SAID END PORTIONS DETERMINING SUBSTANTIALLY THE MECHANICAL DEFORMATION AND ELECTRIC RESISTANCE OF SAID SEMICONDUCTOR BODY, SAID RESPECTIVE END PORTIONS TAPERING TOWARD SAID MIDDLE PORTION FOR INCREASED BUCKLING STRENGTH SO THAT RELATIVELY SMALL FORCES PRODUCE DISCRENIBLE DEFORMATIONS.
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) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |