Patent US3308371A successfully refreshed from Google Patents.
US3308371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Static inverter system with energy return circuit
Assignee: Borg Warner Corp
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Filing: 1963-05-31
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Granted: 1967-03-07
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Expires: 1983-05-31
Abstract
No abstract record available.
Inventors
- 👤 Jr George H Studtmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:55
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/505; H02M7/515
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
FOR USE WITH AN ENERGY CONVERSION CIRCUIT COMPRISING A PAIR OF SUB-CIRCUITS, EACH SUB-CIRCUIT INCLUDING SWITCHING MEANS AND REACTIVE COMMUTATING MEANS SERIES-COUPLED WITH SAID SWITCHING MEANS, INPUT CIRCUIT MEANS COUPLED TO SAID SUB-CIRCUITS FOR SUPPLYING UNIDIRECTIONAL ELECTRICAL ENERGY THERETO, A COMMON OUTPUT CONDUCTOR COUPLED TO EACH OF SAID SUB-CIRCUITS, MEANS FOR APPLYING CONTROL SIGNALS TO SAID SWITCHING MEANS TO INITIATE ALTERNATE OPERATION THEREOF AND TRANSFER ALTERNATING ENERGY OVER SAID OUTPUT CONDUCTOR, EACH OF SAID REACTIVE COOMUTATING MEANS BEING EFFECTIVE TO CYCLICALLY STORE AND RETURN ENERGY TO THE RESPECTIVE SUB-CIRCUIT IN WHICH IT IS COUPLED, THE ENERGY THUS
Claim 2
Dependent Claim
97 words
FOR USE WITH AN ENERGY CONVERSION CIRCUIT COMPRISING A PAIR OF SUB-CIRCUITS, EACH SUB-CIRCUIT INCLUDING SWITCHING MEANS AND REACTIVE COMMUTATING MEANS SERIES-COUPLED WITH SAID SWITCHING MEANS, INPUT CIRCUIT MEANS COUPLED TO SAID SUB-CIRCUITS FOR SUPPLYING UNIDIRECTIONAL ELECTRICAL ENERGY THERETO, A COMMON OUTPUT CONDUCTOR COUPLED TO EACH OF SAID SUB-CIRCUITS, MEANS FOR APPLYING CONTROL SIGNALS TO SAID SWITCHING MEANS TO INITIATE ALTERNATE OPERATION THEREOF AND TRANSFER ALTERNATING ENERGY OVER SAID OUTPUT CONDUCTOR, EACH OF SAID REACTIVE COOMUTATING MEANS BEING EFFECTIVE TO CYCLICALLY STORE AND RETURN ENERGY TO THE RESPECTIVE SUB-CIRCUIT IN WHICH IT IS COUPLED, THE ENERGY THUS
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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |