US3150346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater transducer
Assignee: Individual
•
Filing: 1961-01-09
•
Granted: 1964-09-22
•
Expires: 1981-01-09
Abstract
No abstract record available.
Inventors
- 👤 Orville L Polly
- 👤 Charles J Link
- 👤 Larry A Pyatt
- 👤 Farmen Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:46
CPC Classifications
H; H04; H04R; H04R17/00; H04R17/02; H04R1/00; H04R1/44
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
102 words
AN UNDERWATER TRANSDUCER COMPRISING A WATERPROOF HOUSING HAVING AN OUTER WALL WITH AN OPENING FORMED THEREIN, A RIGID HOLLOW BODY OCCUPYING SAID OPENING IN FLUID-SEALING RELATIONSHIP THEREWITH AND RESILIENTLY SUPPORTED RELATIVE TO SAID HOUSING, AN ELONGATED CRYSTAL DISPOSED WITHIN SAID HOUSING AND EXTENDING THROUGH SAID HOLLOW BODY AND SAID OPENING, A THIN FLAT RIGID METALLIC PLATE DISPOSED TRANSVERSELY TO THE OUTER END OF SAID CRYSTAL AND BONDED BOTH TO SAID CRYSTAL AND THE OUTER END SURFACE OF SAID HOLLOW BODY, AND MEANS FOR INDUCING LONGITUDINAL VIBRATION OF SAID CRYSTAL THEREBY TO DRIVE SAID PLATE IN VIBRATORY MOTION RELATIVE TO SAID HOUSING WALL.
References Cited (Backward Citations)
US2761117A
Cited
US2923367A
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US2914686A
Cited
US2978669A
Cited
US2798902A
Cited
US2961635A
Cited
US3003136A
Cited
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 |