US3159777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct current motor
Assignee: General Electric Co
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Filing: 1961-12-15
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Granted: 1964-12-01
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Expires: 1981-12-15
Abstract
No abstract record available.
Inventors
- 👤 Erich W Manteuffel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:05
CPC Classifications
H; H02; H02P; H02P6/00; H02P6/32; H02K; H02K29/00; H02K29/06; H02K29/08; Y; Y10; Y10S; Y10S310/00; Y10S310/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
210 words
AN ELECTRIC MOTOR ENERGIZABLE FROM A SOURCE OF UNIDIRECTIONAL POTENTIAL WHICH COMPRISES: (A) A ROTOR HAVING MAGNETIC POLES OF OPPOSITE POLARITY THEREON; (B) A STATOR MEMBER, A PLURALITY OF FLUX-PRODUCING WINDINGS POSITIONED IN SAID STATOR MEMBER IN TORQUEPRODUCING RELATION WITH SAID ROTOR; (C) A PLURALITY OF SWITCHING DEVICES EACH HAVING CONTROL MEANS FOR RENDERING ITS ASSOCIATED SWITCHING DEVICE CONDUCTIVE, EACH OF SAID SWITCHING DEVICES CONTROLLING THE CONNECTION OF A RESPECTIVE ONE OF SAID WINDINGS TO A SOURCE OF UNIDIRECTIONAL POTENTIAL SO THAT UNIDIRECTIONAL CURRENT WILL FLOW IN EACH OF SAID WINDINGS WHEN ITS RESPECTIVE SWITCHING DEVICE IS CONDUCTING; (D) A PLURALITY OF HALL EFFECT GENERATORS POSITIONED IN FLUX-SENSING RELATIONSHIP TO SAID MAGNETIC POLES; (E) MEANS FOR APPLYING PULSED ELECTRIC ENERGY TO SAID HALL EFFECT GENERATORS; AND (F) MEANS CONNECTING EACH OF SAID HALL EFFECT GENERATORS TO THE CONTROL MEANS OF A RESPECTIVE ONE OF SAID SWITCHING DEVICES WHEREBY EACH OF SAID HALL EFFECT GENERATORS SUPPLIES A GATING SIGNAL TO THE CONTROL MEANS OF SAID RESPECTIVE SWITCHING DEVICE TO RENDER SAID RESPECTIVE SWITCHING DEVICE CONDUCTIVE UPON COINCIDENT INTERACTION OF A PREDETERMINED LEVEL OF MAGNETIC FLUX FROM SAID MAGNETIC POLES AND APPLIED ELECTRIC ENERGY WITHIN SAID HALL EFFECT GENERATOR TO SEQUENTIALLY ENERGIZE SAID WINDINGS AND PRODUCE A DRIVING TORQUE ON SAID ROTOR.
Claim 2
Dependent Claim
210 words
AN ELECTRIC MOTOR ENERGIZABLE FROM A SOURCE OF UNIDIRECTIONAL POTENTIAL WHICH COMPRISES: (A) A ROTOR HAVING MAGNETIC POLES OF OPPOSITE POLARITY THEREON; (B) A STATOR MEMBER, A PLURALITY OF FLUX-PRODUCING WINDINGS POSITIONED IN SAID STATOR MEMBER IN TORQUEPRODUCING RELATION WITH SAID ROTOR; (C) A PLURALITY OF SWITCHING DEVICES EACH HAVING CONTROL MEANS FOR RENDERING ITS ASSOCIATED SWITCHING DEVICE CONDUCTIVE, EACH OF SAID SWITCHING DEVICES CONTROLLING THE CONNECTION OF A RESPECTIVE ONE OF SAID WINDINGS TO A SOURCE OF UNIDIRECTIONAL POTENTIAL SO THAT UNIDIRECTIONAL CURRENT WILL FLOW IN EACH OF SAID WINDINGS WHEN ITS RESPECTIVE SWITCHING DEVICE IS CONDUCTING; (D) A PLURALITY OF HALL EFFECT GENERATORS POSITIONED IN FLUX-SENSING RELATIONSHIP TO SAID MAGNETIC POLES; (E) MEANS FOR APPLYING PULSED ELECTRIC ENERGY TO SAID HALL EFFECT GENERATORS; AND (F) MEANS CONNECTING EACH OF SAID HALL EFFECT GENERATORS TO THE CONTROL MEANS OF A RESPECTIVE ONE OF SAID SWITCHING DEVICES WHEREBY EACH OF SAID HALL EFFECT GENERATORS SUPPLIES A GATING SIGNAL TO THE CONTROL MEANS OF SAID RESPECTIVE SWITCHING DEVICE TO RENDER SAID RESPECTIVE SWITCHING DEVICE CONDUCTIVE UPON COINCIDENT INTERACTION OF A PREDETERMINED LEVEL OF MAGNETIC FLUX FROM SAID MAGNETIC POLES AND APPLIED ELECTRIC ENERGY WITHIN SAID HALL EFFECT GENERATOR TO SEQUENTIALLY ENERGIZE SAID WINDINGS AND PRODUCE A DRIVING TORQUE ON 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) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |