Patent US3895084A successfully refreshed from Google Patents.
US3129366A
Expired / Lapsed
US
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Power supply for an electro-mechanical vibrating transducer
Assignee: Westinghouse Electric Corp
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Filing: 1960-12-19
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Granted: 1964-04-14
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Expires: 1980-12-19
Abstract
No abstract record available.
Inventors
- 👤 Warren C Fry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:28
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/505; H02M7/515; H02M7/516; B; B06; B06B; B06B1/00; B06B1/02; B06B1/0207; B06B1/0223; B06B1/0238; B06B1/0246
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
IN COMBINATION, A VIBRATING TRANSDUCER, AN L-C NETWORK, A SOURCE OF DIRECT CURRENT FOR CHARGING SAID NETWORK, A PHASE SHIFTING NETWORK INCLUDING THE REACTANCE OF SAID TRANSDUCER OPERATIVELY CONNECTED TO SAID L-C NETWORK FOR PRODUCING A TRIGGER SIGNAL HAVING A FREQUENCY DEPENDENT ON THE EQUIVALENT ELECTRICAL CHARACTERISTICS OF SAID TRANSDUCER, AND SWITCH MEANS RESPONSIVE TO SAID TRIGGER SIGNAL TO PERIODICALLY PROVIDE A DISCHARGE PATH FOR SAID L-C NETWORK.
Claim 2
Dependent Claim
68 words
IN COMBINATION, A VIBRATING TRANSDUCER, AN L-C NETWORK, A SOURCE OF DIRECT CURRENT FOR CHARGING SAID NETWORK, A PHASE SHIFTING NETWORK INCLUDING THE REACTANCE OF SAID TRANSDUCER OPERATIVELY CONNECTED TO SAID L-C NETWORK FOR PRODUCING A TRIGGER SIGNAL HAVING A FREQUENCY DEPENDENT ON THE EQUIVALENT ELECTRICAL CHARACTERISTICS OF SAID TRANSDUCER, AND SWITCH MEANS RESPONSIVE TO SAID TRIGGER SIGNAL TO PERIODICALLY PROVIDE A DISCHARGE PATH FOR SAID L-C NETWORK.
References Cited (Backward Citations)
US2301928A
Cited
US2931898A
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US2769906A
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US2895095A
Cited
US2889460A
Cited
US2985847A
Cited
US3040224A
Cited
US2939064A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |