Patent US3112440A successfully refreshed from Google Patents.
US3112440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ferroresonant voltage stabilizer
Assignee: Electric Auto Lite Co
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Filing: 1962-01-08
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Granted: 1963-11-26
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Expires: 1982-01-08
Abstract
No abstract record available.
Inventors
- 👤 Moyer Elmo Emerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:40
CPC Classifications
G; G05; G05F; G05F3/00; G05F3/02; G05F3/04; G05F3/06; G05F1/00; G05F1/10; G05F1/12; G05F1/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
IN A FERRORESONANT DEVICE FOR REGULATING A.C. VOLTAGES, A PAIR OF COOPERATING TRANSFORMER-LIKE FERROMAGNETIC DEVICES FOR ALTERNATING CURRENT EACH INCLUDING SERIES-CONNECTED ENERGIZING PRIMARY COILS, A PAIR OF COILS ONE FOR EACH FERROMAGNETIC DEVICE IN SERIES CONNECTION WITH A CAPACITOR AND IN EXTENDED SERIES CONNECTION WITH THE PRIMARY COILS TO FORM A RESONATING CIRCUIT IN COOPERATIVE RELATION WITH THE PRIMARY COILS, A D.C. CONTROL COIL FOR EACH FERROMAGNETIC DEVICE WHOSE FLUX IN ONE DEVICE IS ADDITIVE TO THE A.C. FLUX OF THE PRIMARY AND OPPOSED IN THE OTHER, A PAIR OF LOAD COILS FOR EACH FERROMAGNETIC DEVICE EACH CONNECTED IN SERIES WITH A SIMILAR COIL ON THE OTHER DEVICE AND THE PAIRS CONNECTED IN PARALLEL TO PROVIDE TWO PARALLEL LOAD PATHS, AND A PAIR OF DIODES, ONE CONNECTED ACROSS THE ENDS OF THE CONTROL COILS IN OPPOSED POLARITY TO THE D.C. CURRENT, AND THE OTHER CONNECTED TO THE CENTER POINTS OF THE PARALLEL CONNECTED LOAD COILS.
Claim 2
Dependent Claim
155 words
IN A FERRORESONANT DEVICE FOR REGULATING A.C. VOLTAGES, A PAIR OF COOPERATING TRANSFORMER-LIKE FERROMAGNETIC DEVICES FOR ALTERNATING CURRENT EACH INCLUDING SERIES-CONNECTED ENERGIZING PRIMARY COILS, A PAIR OF COILS ONE FOR EACH FERROMAGNETIC DEVICE IN SERIES CONNECTION WITH A CAPACITOR AND IN EXTENDED SERIES CONNECTION WITH THE PRIMARY COILS TO FORM A RESONATING CIRCUIT IN COOPERATIVE RELATION WITH THE PRIMARY COILS, A D.C. CONTROL COIL FOR EACH FERROMAGNETIC DEVICE WHOSE FLUX IN ONE DEVICE IS ADDITIVE TO THE A.C. FLUX OF THE PRIMARY AND OPPOSED IN THE OTHER, A PAIR OF LOAD COILS FOR EACH FERROMAGNETIC DEVICE EACH CONNECTED IN SERIES WITH A SIMILAR COIL ON THE OTHER DEVICE AND THE PAIRS CONNECTED IN PARALLEL TO PROVIDE TWO PARALLEL LOAD PATHS, AND A PAIR OF DIODES, ONE CONNECTED ACROSS THE ENDS OF THE CONTROL COILS IN OPPOSED POLARITY TO THE D.C. CURRENT, AND THE OTHER CONNECTED TO THE CENTER POINTS OF THE PARALLEL CONNECTED LOAD COILS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-25 | 1967-05-27 | 1967-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-25 | 1971-05-27 | 1971-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-25 | 1975-05-27 | 1975-11-26 | $7700.00 | Window Closed / Lapsed |