US3136935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Commutatorless d. c. motor
Assignee: Individual
•
Filing: 1959-03-18
•
Granted: 1964-06-09
•
Expires: 1979-03-18
Abstract
No abstract record available.
Inventors
- 👤 Jimmie S Hogan
- 👤 Robert L Hogan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:55
CPC Classifications
H; H02; H02K; H02K29/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
AN ELECTRIC MOTOR COMPRISING A ROTATABLY MOUNTED PERMANENTLY MAGNETIZED ROTOR, AN ELECTRICAL CONDUCTOR MAGNETICALLY COUPLED DIRECTLY WITH SAID ROTOR TO ROTATE SAID ROTOR WHEN SELECTIVELY ENERGIZED AND TO RECEIVE ELECTROMOTIVE FORCE PULSES FROM SAID ROTATING ROTOR, A POWER SOURCE INCLUDING AT LEAST ONE TRANSISTOR FOR SELECTIVELY ENERGIZING SAID CONDUCTOR, AND A CIRCUIT, INCLUDING A CONTROL TRANSFORMER, CONNECTING SAID POWER SOURCE, SAID TRANSISTOR, SAID CONTROL TRANSFORMER, AND SAID ELECTRICAL CONDUCTOR IN SUCH A WAY THAT SAID TRANSISTOR IS RESPONSIVE TO THE ELECTRICAL POLARITY OF SAID CONTROL TRANSFORMER AND IS CAUSED TO BE CONDUCTIVE WITH A SELECTED ELECTRICAL POLARITY OF SAID CONTROL TRANSFORMER, AND THE ELECTRICAL POLARITY OF SAID CONTROL TRANSFORMER IS CONTROLLED BY SAID ELECTROMOTIVE FORCE PULSES INDUCED IN SAID CONDUCTOR BY SAID ROTATING ROTOR AND THEREBY SELECTIVELY CONTROLS SAID TRANSISTOR TO ROTATE SAID ROTOR.
Claim 2
Dependent Claim
134 words
AN ELECTRIC MOTOR COMPRISING A ROTATABLY MOUNTED PERMANENTLY MAGNETIZED ROTOR, AN ELECTRICAL CONDUCTOR MAGNETICALLY COUPLED DIRECTLY WITH SAID ROTOR TO ROTATE SAID ROTOR WHEN SELECTIVELY ENERGIZED AND TO RECEIVE ELECTROMOTIVE FORCE PULSES FROM SAID ROTATING ROTOR, A POWER SOURCE INCLUDING AT LEAST ONE TRANSISTOR FOR SELECTIVELY ENERGIZING SAID CONDUCTOR, AND A CIRCUIT, INCLUDING A CONTROL TRANSFORMER, CONNECTING SAID POWER SOURCE, SAID TRANSISTOR, SAID CONTROL TRANSFORMER, AND SAID ELECTRICAL CONDUCTOR IN SUCH A WAY THAT SAID TRANSISTOR IS RESPONSIVE TO THE ELECTRICAL POLARITY OF SAID CONTROL TRANSFORMER AND IS CAUSED TO BE CONDUCTIVE WITH A SELECTED ELECTRICAL POLARITY OF SAID CONTROL TRANSFORMER, AND THE ELECTRICAL POLARITY OF SAID CONTROL TRANSFORMER IS CONTROLLED BY SAID ELECTROMOTIVE FORCE PULSES INDUCED IN SAID CONDUCTOR BY SAID ROTATING ROTOR AND THEREBY SELECTIVELY CONTROLS SAID TRANSISTOR TO ROTATE SAID ROTOR.
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) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |