Patent US3129367A successfully refreshed from Google Patents.
US3129367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transducer ultrasonic power supply
Assignee: Westinghouse Electric Corp
•
Filing: 1961-05-31
•
Granted: 1964-04-14
•
Expires: 1981-05-31
Abstract
No abstract record available.
Inventors
- 👤 Chuck F Der
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:04
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/35; H03K3/352; B; B06; B06B; B06B1/00; B06B1/02; B06B1/0207; B06B1/0223; B06B1/0238; B06B1/0246
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
IN COMBINATION A VIBRATING TRANSDUCER INCLUDING A REACTANCE ELEMENT, AN LC NETWORK, A SOURCE OF DIRECT CURRENT FOR CHARGING SAID NETWORK, A PHASE SHIFTING NETWORK INCLUDING SAID TRANSDUCER REACTANCE ELEMENT OPERATIVELY CONNECTED TO SAID LC NETWORK FOR PRODUCING A TRIGGER SIGNAL HAVING A FREQUENCY DEPENDENT UPON THE EQUIVALENT ELECTICAL CHARACTERISTIC OF SAID TRANSDUCER, SWITCH MEANS OPERABLY CONNECTED TO BOTH SAID NETWORKS AND RESPONSIVE TO SAID TRIGGER SIGNAL TO PERIODICALLY PROVIDE A DISCHARGE PATH FOR SAID LC NETWORK, AND MEANS FOR AUTOMATICALLY VARYING THE FREQUENCY OF SAID TRIGGER SIGNAL.
Claim 2
Dependent Claim
88 words
IN COMBINATION A VIBRATING TRANSDUCER INCLUDING A REACTANCE ELEMENT, AN LC NETWORK, A SOURCE OF DIRECT CURRENT FOR CHARGING SAID NETWORK, A PHASE SHIFTING NETWORK INCLUDING SAID TRANSDUCER REACTANCE ELEMENT OPERATIVELY CONNECTED TO SAID LC NETWORK FOR PRODUCING A TRIGGER SIGNAL HAVING A FREQUENCY DEPENDENT UPON THE EQUIVALENT ELECTICAL CHARACTERISTIC OF SAID TRANSDUCER, SWITCH MEANS OPERABLY CONNECTED TO BOTH SAID NETWORKS AND RESPONSIVE TO SAID TRIGGER SIGNAL TO PERIODICALLY PROVIDE A DISCHARGE PATH FOR SAID LC NETWORK, AND MEANS FOR AUTOMATICALLY VARYING THE FREQUENCY OF SAID TRIGGER SIGNAL.
References Cited (Backward Citations)
US2287223A
Cited
US2287880A
Cited
US2322217A
Cited
US2889460A
Cited
US3040224A
Cited
US2995689A
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 |