US3150347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater transducer element
Assignee: Individual
•
Filing: 1959-11-30
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Granted: 1964-09-22
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Expires: 1979-11-30
Abstract
No abstract record available.
Inventors
- 👤 Hanish Sam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:13
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
AN UNDERWATER TRANSDUCER COMPRISING, FIRST AND SECOND PARALLEL SPACED METAL BACKING PLATES WITH BROAD INNER AND OUTER FACES, A RIGID METAL COUPLING MEMBER MOUNTED BETWEEN SAID PLATES AND ATTACHED THERETO OVER A SMALL FRACTION OF THE SURFACE AREA OF THEIR OPPOSED INNER FACES, FIRST AND SECOND LAYERS OF PIEZOELECTRIC MATERIAL EACH WITH ELECTRODES PLATED ON THE BOARD SURFACES THEREOF, SAID BROAD SURFACES BEING SUBSTANTIALLY THE SAME SHAPE AND SIZE AS SAID BROAD FACES, AND MEANS CEMENTING ONE OF SAID LAYERS OVER EACH OF SAID OUTER FACES TO FORM A PAIR OF FLEXURAL ELEMENTS.
Claim 2
Dependent Claim
93 words
AN UNDERWATER TRANSDUCER COMPRISING, FIRST AND SECOND PARALLEL SPACED METAL BACKING PLATES WITH BROAD INNER AND OUTER FACES, A RIGID METAL COUPLING MEMBER MOUNTED BETWEEN SAID PLATES AND ATTACHED THERETO OVER A SMALL FRACTION OF THE SURFACE AREA OF THEIR OPPOSED INNER FACES, FIRST AND SECOND LAYERS OF PIEZOELECTRIC MATERIAL EACH WITH ELECTRODES PLATED ON THE BOARD SURFACES THEREOF, SAID BROAD SURFACES BEING SUBSTANTIALLY THE SAME SHAPE AND SIZE AS SAID BROAD FACES, AND MEANS CEMENTING ONE OF SAID LAYERS OVER EACH OF SAID OUTER FACES TO FORM A PAIR OF FLEXURAL ELEMENTS.
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) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |