US3284760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrophone members
Assignee: Electronique Appliquee SA
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Filing: 1964-02-03
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Granted: 1966-11-08
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Expires: 1984-02-03
Abstract
No abstract record available.
Inventors
- 👤 Maes Guy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:44
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/004; G10K11/006; G10K11/008; B; B06; B06B; B06B1/00; B06B1/02; B06B1/06; B06B1/0644; B06B1/0655; G01; G01S; G01S1/00; G01S1/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A PIEZOELECTRIC HYDROPHONE FOR ANTI-ECHO SUBMARINE LISTENING COMPRISING IN COMBINATION: (A) A HOLLOW CYLINDER OF PIEZOELECTRIC MATERIAL HAVING INNER AND OUTER ELECTRODES THEREON; (B) A RIGID HOLLOW SPOOL-SHAPED MEMBER POSITIONED COAXIALLY WITHIN SAID CYLINDER AND SPACED RADIALLY INWARDLY THEREOF, THE FLANGES OF SAID SPOOL LYING IN SUBSTANTIALLY THE SAME PLANES AS THE END FACES OF SAID CYLINDER, SAID SPOOL FURTHER INCLUDING A CENTRAL TRANSVERSE BORE THERETHROUGH; (C) A PAIR OF SUBSTANTIALLY DISK-SHAPED APERTURED ELASTOMERIC MEMBERS OVERLYING OPPOSITE ENDS OF SAID SPOOL AND SAID CYLINDER, AND INCLUDING OUTWARDLY AXIALLYEXTENDING TUBULAR PORTIONS CONCENTRIC WITH SAID APERTURES AND CYLINDRICAL PORTIONS ENCLOSING SAID CYLINDER IN WATER-TIGHT RELATION AND TERMINATING IN RADIALLY INWARDLY EXTENDING FLANGES; (D) AND AN ELECTRICAL CABLE EXTENDING THROUGH SAID DISKSHAPED MEMBERS AND SAID SPOOL AND CONNECTED TO SAID ELECTRODES THROUGH SAID TRANSVERSE BORE.
Claim 2
Dependent Claim
132 words
A PIEZOELECTRIC HYDROPHONE FOR ANTI-ECHO SUBMARINE LISTENING COMPRISING IN COMBINATION: (A) A HOLLOW CYLINDER OF PIEZOELECTRIC MATERIAL HAVING INNER AND OUTER ELECTRODES THEREON; (B) A RIGID HOLLOW SPOOL-SHAPED MEMBER POSITIONED COAXIALLY WITHIN SAID CYLINDER AND SPACED RADIALLY INWARDLY THEREOF, THE FLANGES OF SAID SPOOL LYING IN SUBSTANTIALLY THE SAME PLANES AS THE END FACES OF SAID CYLINDER, SAID SPOOL FURTHER INCLUDING A CENTRAL TRANSVERSE BORE THERETHROUGH; (C) A PAIR OF SUBSTANTIALLY DISK-SHAPED APERTURED ELASTOMERIC MEMBERS OVERLYING OPPOSITE ENDS OF SAID SPOOL AND SAID CYLINDER, AND INCLUDING OUTWARDLY AXIALLYEXTENDING TUBULAR PORTIONS CONCENTRIC WITH SAID APERTURES AND CYLINDRICAL PORTIONS ENCLOSING SAID CYLINDER IN WATER-TIGHT RELATION AND TERMINATING IN RADIALLY INWARDLY EXTENDING FLANGES; (D) AND AN ELECTRICAL CABLE EXTENDING THROUGH SAID DISKSHAPED MEMBERS AND SAID SPOOL AND CONNECTED TO SAID ELECTRODES THROUGH SAID TRANSVERSE BORE.
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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |