Patent US3641112A successfully refreshed from Google Patents.
US3262093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure compensated sonic transducer
Assignee: Individual
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Filing: 1961-11-14
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Granted: 1966-07-19
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Expires: 1981-11-14
Abstract
No abstract record available.
Inventors
- 👤 Miguel C Junger
- 👤 Kleinschmidt Klaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:29
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/06; B06B1/0644; B06B1/0655
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A DEEP, SUBMERSIBLE ACOUSTIC TRANSDUCER COMPRISING, IN COMBINATION, AN ANNULAR ELEMENT MADE OF A MATERIAL POSSESSING PIEZOELECTRIC PROPERTIES, A PAIR OF RIGID END PLATES CONNECTED TO THE OPPOSITE RIM PORTIONS OF SAID ANNULAR ELEMENT AND SEALING OFF THE INTERIOR THEREOF, AN EXPANSIBLE, CONTRACTIBLE BLADDER POSITIONED WITHIN THE INTERIOR OF SAID ANNULAR ELEMENT, SAID BLADDER BEING INFLATED WITH A GASEOUS SUBSTANCE SUCH THAT WHEN SAID TRANSDUCER IS AT THE SURFACE SAID BLADDER FILLS A MAJOR PORTION OF THE INTERIOR OF SAID ANNULAR ELEMENT, A PASSAGEWAY CUT THROUGH ONE OF SAID END PLATES FOR ESTABLISHING FLUID COMMUNICATION BETWEEN THE EXTERIOR OF SAID BLADDER AND THE
Claim 2
Dependent Claim
103 words
A DEEP, SUBMERSIBLE ACOUSTIC TRANSDUCER COMPRISING, IN COMBINATION, AN ANNULAR ELEMENT MADE OF A MATERIAL POSSESSING PIEZOELECTRIC PROPERTIES, A PAIR OF RIGID END PLATES CONNECTED TO THE OPPOSITE RIM PORTIONS OF SAID ANNULAR ELEMENT AND SEALING OFF THE INTERIOR THEREOF, AN EXPANSIBLE, CONTRACTIBLE BLADDER POSITIONED WITHIN THE INTERIOR OF SAID ANNULAR ELEMENT, SAID BLADDER BEING INFLATED WITH A GASEOUS SUBSTANCE SUCH THAT WHEN SAID TRANSDUCER IS AT THE SURFACE SAID BLADDER FILLS A MAJOR PORTION OF THE INTERIOR OF SAID ANNULAR ELEMENT, A PASSAGEWAY CUT THROUGH ONE OF SAID END PLATES FOR ESTABLISHING FLUID COMMUNICATION BETWEEN THE EXTERIOR OF SAID BLADDER AND THE
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) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |