Patent US3262037A successfully refreshed from Google Patents.
US3262037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alternative a.c. or d.c. supply for an a.c. motor
Assignee: Superior Electric Co
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Filing: 1963-05-23
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Granted: 1966-07-19
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Expires: 1983-05-23
Abstract
No abstract record available.
Inventors
- 👤 Owen J Mccabe
- 👤 Allen R Perrins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:35
CPC Classifications
H; H02; H02P; H02P4/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
FOR USE WITH AN ELECTRIC MOTOR OF THE TYPE HAVING A TWO-PHASE FIELD WINDING OPERABLE BY ALTERNATING CURRENT, AN ELECTRICAL TRANSDUCER FOR PRODUCING THE ALTERNATING CURRENT OF A SPECIFIC FREQUENCY AND VOLTAGE FROM A UNDIRECTIONAL POWER SOURCE HAVING A DIFFERENT VOLTAGE TO OPERATE THE MOTOR, SAID TRANSDUCER COMPRISING A PAIR OF INPUT TERMINALS CONNECTIBLE TO THE SOURE OF UNIDIRECTIONAL POWER, AN AUTOTRANSFORMER HAVING A PAIR OF OUTPUT TERMINALS ACROSS WHICH THE ALTERNATING CURRENT APPEARS AND FIRST, SECOND AND THRID TAPS DEFINING TWO SUBSTANTIALLY EQUAL WINDING PORTIONS, A PAIR OF TRANSISTORS HAVING THEIR COLLECTORS CONNECTED TO ONE INPUT TERMINLA, MEANS CONNECTING THE OTHER INPUT TERMINAL TO THE SECOND TAP, MEANS CONNECTING THE EMITTER OF ONE TRANSISTOR TO THE FIRST TAP AND THE EMITTER OF THE OTHER TRANSISTOR TO THE THIRD TAP, A TRANSFORMER HAVING A PRIMARY WINDING AND TWO SECONDARY WINDINGS, MEANS CONNECTING THE PRIMARY WINDING TO THE FIRST AND THIRD TAPS, MEANS CONNECTING ONE SECOND
Claim 2
Dependent Claim
155 words
FOR USE WITH AN ELECTRIC MOTOR OF THE TYPE HAVING A TWO-PHASE FIELD WINDING OPERABLE BY ALTERNATING CURRENT, AN ELECTRICAL TRANSDUCER FOR PRODUCING THE ALTERNATING CURRENT OF A SPECIFIC FREQUENCY AND VOLTAGE FROM A UNDIRECTIONAL POWER SOURCE HAVING A DIFFERENT VOLTAGE TO OPERATE THE MOTOR, SAID TRANSDUCER COMPRISING A PAIR OF INPUT TERMINALS CONNECTIBLE TO THE SOURE OF UNIDIRECTIONAL POWER, AN AUTOTRANSFORMER HAVING A PAIR OF OUTPUT TERMINALS ACROSS WHICH THE ALTERNATING CURRENT APPEARS AND FIRST, SECOND AND THRID TAPS DEFINING TWO SUBSTANTIALLY EQUAL WINDING PORTIONS, A PAIR OF TRANSISTORS HAVING THEIR COLLECTORS CONNECTED TO ONE INPUT TERMINLA, MEANS CONNECTING THE OTHER INPUT TERMINAL TO THE SECOND TAP, MEANS CONNECTING THE EMITTER OF ONE TRANSISTOR TO THE FIRST TAP AND THE EMITTER OF THE OTHER TRANSISTOR TO THE THIRD TAP, A TRANSFORMER HAVING A PRIMARY WINDING AND TWO SECONDARY WINDINGS, MEANS CONNECTING THE PRIMARY WINDING TO THE FIRST AND THIRD TAPS, MEANS CONNECTING ONE SECOND
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) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |