Patent US3250973A successfully refreshed from Google Patents.
US3250973A
Expired / Lapsed
US
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Permanent magnet field generator fed motor control as a torque converter
Assignee: Individual
•
Filing: 1962-04-10
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Granted: 1966-05-10
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Expires: 1982-04-10
Abstract
No abstract record available.
Inventors
- 👤 Edward F Dawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:20
CPC Classifications
B; B60; B60K; B60K6/00; B60K6/20; B60K6/42; B60K6/46; B60K17/00; B60K17/04; B60K17/12; H; H02; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/34; B60K1/00; B60K1/02; B60K7/00; B60K7/0007; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A TORQUE CONVERTER COMPRSING, AN ELECTRIC GENERATOR, AN ARMATURE FOR SAID GENERATOR, A VARIABLE SPEED POWER SOURCE CONNECTED TO AND DRIVING SAID GENERATOR ARMATURE, A HIGH INTENSITY PERMANENT FIELD MAGNET SYSTEM FOR SAID GENERATOR MAINTAINING AN UNVARYING FIELD STRENGHT REGARDLESS OF CHANGES OF SPEED IN THE GENERATOR ARMATURE, SAID PERMANENT MAGNET SYSTEM COMPRISING THE ENTIRE FIELD FOR SAID GENERATOR, AT LEAST ONE ELECTRIC MOTOR, AN ARMATURE FOR SAID ELECTRIC MOTOR, CONDUCTING MEANS CONNECTING IN SERIES THE GENERATOR ARMATURE AND THE MOTOR ARMATURE, SAID CONDUCTING MEANS BEING FREE OF THE GENERATOR FIELD MAGNET SYSTEM, THE ARMATURE OF THE MOTOR ADAPTED TO BE COUPLED TO A LOAD, THE POWER SUPPLIED TO THE MOTOR BEING DIRECTLY CONTROLLED BY THE SPEED OF THE POWER SOURCE AND THE GENERATOR ARMATURE.
Claim 2
Dependent Claim
125 words
A TORQUE CONVERTER COMPRSING, AN ELECTRIC GENERATOR, AN ARMATURE FOR SAID GENERATOR, A VARIABLE SPEED POWER SOURCE CONNECTED TO AND DRIVING SAID GENERATOR ARMATURE, A HIGH INTENSITY PERMANENT FIELD MAGNET SYSTEM FOR SAID GENERATOR MAINTAINING AN UNVARYING FIELD STRENGHT REGARDLESS OF CHANGES OF SPEED IN THE GENERATOR ARMATURE, SAID PERMANENT MAGNET SYSTEM COMPRISING THE ENTIRE FIELD FOR SAID GENERATOR, AT LEAST ONE ELECTRIC MOTOR, AN ARMATURE FOR SAID ELECTRIC MOTOR, CONDUCTING MEANS CONNECTING IN SERIES THE GENERATOR ARMATURE AND THE MOTOR ARMATURE, SAID CONDUCTING MEANS BEING FREE OF THE GENERATOR FIELD MAGNET SYSTEM, THE ARMATURE OF THE MOTOR ADAPTED TO BE COUPLED TO A LOAD, THE POWER SUPPLIED TO THE MOTOR BEING DIRECTLY CONTROLLED BY THE SPEED OF THE POWER SOURCE AND THE GENERATOR ARMATURE.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |