US3205476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroacoustic transducer
Assignee: Dynamics Corp of America
•
Filing: 1960-11-08
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Granted: 1965-09-07
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Expires: 1980-11-08
Abstract
No abstract record available.
Inventors
- 👤 Massa Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:44
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/04; B06B1/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
THE IMPROVEMENT OF AN UNDERWATER HIGH ACOUSTIC POWER ELECTROACOUSTIC TRANSDUCER COMPRISING A SEALED HOUSING FORMED OF A TUBULAR BODY HAVING AN END PLATE AT EACH END THEREOF, SAID SEALED HOUSING AND AN END PLATES FORMING A RIGID OSCILLATORY HOLLOW SHELL ADAPTED TO OSCILLATE IN REFERENCE TO AN INERTIAL, INTERNALLY SUSPENDED MASS, SAID INERTIAL, INTERNALLY SUSPENDED MASS COMPRISING AN INNER PLATE HAVING A PAIR OF AXIALLY OPPOSED FACES, RESILIENT MEANS SUSPENDING SAID INNER PLATE FOR AXIAL MOVEMENT BETWEEN SAID EN PLATES, A MAGNETIC ARMATURE MOUNTED ON ONLY ONE END PLATE, A MAGNETIC ASSEMBLY MOUNTED ONLY ON THE ONE FACE OF SAID INNER PLATE FACING SAID ONE END PLATE, A COIL MEANS ASSOCIATED WITH SAID MAGNETIC ASSEMBLY, AND SEALED ELECTRICAL TERMINAL MEANS IN SAID HOUSING CONNECTED TO SAID COIL MEANS FOR ENABLING ELECTRICAL CONNECTION TO BE ESTABLISHED THROUGH SAID HOUSING TO SAID COIL MEANS.
Claim 2
Dependent Claim
142 words
THE IMPROVEMENT OF AN UNDERWATER HIGH ACOUSTIC POWER ELECTROACOUSTIC TRANSDUCER COMPRISING A SEALED HOUSING FORMED OF A TUBULAR BODY HAVING AN END PLATE AT EACH END THEREOF, SAID SEALED HOUSING AND AN END PLATES FORMING A RIGID OSCILLATORY HOLLOW SHELL ADAPTED TO OSCILLATE IN REFERENCE TO AN INERTIAL, INTERNALLY SUSPENDED MASS, SAID INERTIAL, INTERNALLY SUSPENDED MASS COMPRISING AN INNER PLATE HAVING A PAIR OF AXIALLY OPPOSED FACES, RESILIENT MEANS SUSPENDING SAID INNER PLATE FOR AXIAL MOVEMENT BETWEEN SAID EN PLATES, A MAGNETIC ARMATURE MOUNTED ON ONLY ONE END PLATE, A MAGNETIC ASSEMBLY MOUNTED ONLY ON THE ONE FACE OF SAID INNER PLATE FACING SAID ONE END PLATE, A COIL MEANS ASSOCIATED WITH SAID MAGNETIC ASSEMBLY, AND SEALED ELECTRICAL TERMINAL MEANS IN SAID HOUSING CONNECTED TO SAID COIL MEANS FOR ENABLING ELECTRICAL CONNECTION TO BE ESTABLISHED THROUGH SAID HOUSING TO SAID COIL MEANS.
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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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |