US3319220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic transducer for use in deep water
Assignee: Dynamics Corp of America
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Filing: 1965-10-29
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Granted: 1967-05-09
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Expires: 1985-10-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Frank Massa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:38
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/04; G; G01; G01S; G01S1/00; G01S1/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
IN COMBINATION IN AN ELECTROACOUSTIC TRANSDUCER, A RIGID PLATE MEMBER HAVING TWO OPPOSITE PARALLEL PLANE SURFACES, A FIRST PAIR OF MAGNETICALLY-CONDUCTING ELEMENTS, EACH ELEMENT RIGIDLY ATTACHED TO ONE OF SAID OPPOSITE PARALLEL PLANE SURFACES, A SECOND PAIR OF MAGNETICALLY-CONDUCTING MEANS EACH MOUNTED IN OPERABLE RELATIONSHIP AND SEPARATED BY SPRING MEMBERS FROM EACH OF SAID FIRST PAIR OF MAGNETICALLY-CONDUCTING ELEMENTS, ELECTRICAL CONDUCTING COIL MEANS MOUNTED IN OPERABLE RELATIONSHIP WITH SAID FIRST AND SAID SECOND MAGNETICALLY-CONDUCTING MEANS, ELECTRICAL TERMINAL MEANS CONNECTED TO SAID COIL MEANS, AND HOUSING MEANS COMPRISING A HOLLOW SHELL-LIKE STRUCTURE MECHANICALLY ATTACHED TO THE PERIPHERAL PORTION OF SAID RIGID PLATE MEMBER AND TOTALLY ENCLOSING SAID MAGNETICALLYCONDUCTING ELEMENTS AND ASSOCIATED ELECTRICAL CONDUCTING COIL MEANS.
Claim 2
Dependent Claim
114 words
IN COMBINATION IN AN ELECTROACOUSTIC TRANSDUCER, A RIGID PLATE MEMBER HAVING TWO OPPOSITE PARALLEL PLANE SURFACES, A FIRST PAIR OF MAGNETICALLY-CONDUCTING ELEMENTS, EACH ELEMENT RIGIDLY ATTACHED TO ONE OF SAID OPPOSITE PARALLEL PLANE SURFACES, A SECOND PAIR OF MAGNETICALLY-CONDUCTING MEANS EACH MOUNTED IN OPERABLE RELATIONSHIP AND SEPARATED BY SPRING MEMBERS FROM EACH OF SAID FIRST PAIR OF MAGNETICALLY-CONDUCTING ELEMENTS, ELECTRICAL CONDUCTING COIL MEANS MOUNTED IN OPERABLE RELATIONSHIP WITH SAID FIRST AND SAID SECOND MAGNETICALLY-CONDUCTING MEANS, ELECTRICAL TERMINAL MEANS CONNECTED TO SAID COIL MEANS, AND HOUSING MEANS COMPRISING A HOLLOW SHELL-LIKE STRUCTURE MECHANICALLY ATTACHED TO THE PERIPHERAL PORTION OF SAID RIGID PLATE MEMBER AND TOTALLY ENCLOSING SAID MAGNETICALLYCONDUCTING ELEMENTS AND ASSOCIATED ELECTRICAL CONDUCTING COIL MEANS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-08 | 1970-11-07 | 1971-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-08 | 1974-11-07 | 1975-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-08 | 1978-11-07 | 1979-05-09 | $7700.00 | Window Closed / Lapsed |