US3511182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for controlling the firing of an explosive charge
Assignee: United States Department of the Navy
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Filing: 1943-11-18
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Granted: 1970-05-12
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Expires: 1963-11-18
Abstract
No abstract record available.
Inventors
- 👤 Frank A Hester Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:11
CPC Classifications
F; F42; F42C; F42C13/00; F42C13/06; F41; F41F; F41F3/00; F41F3/08; F42B; F42B21/00; G; G01; G01S; G01S1/00; G01S1/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
APPARATUS FOR CONTROLLING THE FIRING OF AN EXPLOSIVE CHARGE COMPRISING A SONIC TRANSDUCER ADAPTED TO PROJECT SONIC WAVES TOWARD A TARGET AND TO RECEIVE SONIC WAVES REFLECTED BACK THERETO FROM SAID TARGET WHILE SAID TRANSDUCER AND SAID TARGET MOVE RELATIVE TO EACH OTHER, THE RELATIVE MOVEMENT OF SAID TRANSDUCER AND SAID TARGET RESULTING IN A CONTINUALLY VARYING FREQUENCY DIFFERENCE BETWEEN SAID PROJECTED AND RECEIVED WAVES IN ACCORDANCE WITH THE DOPPLER EFFECT AND PRODUCING IN SAID TRANSDUCER A CORRESPONDINGLY VARYING HETERODYNE SIGNAL, MEANS AS-
Claim 2
Dependent Claim
83 words
APPARATUS FOR CONTROLLING THE FIRING OF AN EXPLOSIVE CHARGE COMPRISING A SONIC TRANSDUCER ADAPTED TO PROJECT SONIC WAVES TOWARD A TARGET AND TO RECEIVE SONIC WAVES REFLECTED BACK THERETO FROM SAID TARGET WHILE SAID TRANSDUCER AND SAID TARGET MOVE RELATIVE TO EACH OTHER, THE RELATIVE MOVEMENT OF SAID TRANSDUCER AND SAID TARGET RESULTING IN A CONTINUALLY VARYING FREQUENCY DIFFERENCE BETWEEN SAID PROJECTED AND RECEIVED WAVES IN ACCORDANCE WITH THE DOPPLER EFFECT AND PRODUCING IN SAID TRANSDUCER A CORRESPONDINGLY VARYING HETERODYNE SIGNAL, MEANS AS-
References Cited (Backward Citations)
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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) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |