US3340448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traction motor power supply system
Assignee: Motors Liquidation Co
•
Filing: 1964-11-04
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Granted: 1967-09-05
•
Expires: 1984-11-04
Abstract
No abstract record available.
Inventors
- 👤 Elmer E Thiessen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:35
CPC Classifications
B; B60; B60L; B60L50/00; B60L50/10; B60L50/12; B60L2200/00; B60L2200/26; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/64; Y02T10/70; Y02T10/7072
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
196 words
A POWER SUPPLY SYSTEM FOR SUPPLYING DIRECT CURRENT TO THE TRACTION MOTORS OF A LOCOMOTIVE COMPRISING, AN ALTERNATING CURRENT GENERATOR HAVING FIRST AND SECOND GROUPS OF DISCRETE THREE PHASE Y-CONNECTED OUTPUT WINDINGS, FIRST AND SECOND GROUPS OF PHASE FULL-WAVE BRIDGE RECTIFIER NETWORKS CONNECTED RESPECTIVELY WITH SAID FIRST AND SECOND GROUPS OF OUTPUT WINDINGS, FIRST AND SECOND POWER SUPPLY CONDUCTORS CONNECTED WITH SAID FIRST GROUP OF BRIDGE RECTIFIER NETWORKS FOR SUPPLYING DIRECT CURRENT TO A FIRST TRACTION MOTOR, THIRD AND FOURTH POWER SUPPLY CONDUCTORS CONNECTED WITH SAID SECOND GROUP OF BRIDGE RECTIFIER NETWORKS FOR SUPPLYING DIRECT CURRENT TO A SECOND TRACTION MOTOR, MEANS CONNECTING THE NEUTRALS OF EACH GROUP OF THREE-PHASE WINDINGS TOGETHER, MEANS CONNECTING THE RECTIFIER SIDE OF EACH PHASE WINDING OF THE THREE PHASE WINDINGS THAT FEED THE FIRST GROUPS OF RECTIFIERS TOGETHER AT POINTS OPPOSITE THE NEUTRALS OF SAID FIRST GROUP OF THREE-PHASE WINDINGS, AND MEANS CONNECTING THE RECTIFIER SIDE OF EACH PHASE WINDING OF THE THREE PHASE WINDINGS THAT FEED THE SECOND GROUP OF RECTIFIERS TOGETHER AT POINTS WINDINGS, SAID FIRST AND SECOND GROUPS OF THREE THREE-PHASE WINDINGS, SAID FIRST AND SECOND GROUPS OF THREE PHASE WINDINGS BEING WOUND SYMMETRICALLY ON A STATOR
Claim 2
Dependent Claim
196 words
A POWER SUPPLY SYSTEM FOR SUPPLYING DIRECT CURRENT TO THE TRACTION MOTORS OF A LOCOMOTIVE COMPRISING, AN ALTERNATING CURRENT GENERATOR HAVING FIRST AND SECOND GROUPS OF DISCRETE THREE PHASE Y-CONNECTED OUTPUT WINDINGS, FIRST AND SECOND GROUPS OF PHASE FULL-WAVE BRIDGE RECTIFIER NETWORKS CONNECTED RESPECTIVELY WITH SAID FIRST AND SECOND GROUPS OF OUTPUT WINDINGS, FIRST AND SECOND POWER SUPPLY CONDUCTORS CONNECTED WITH SAID FIRST GROUP OF BRIDGE RECTIFIER NETWORKS FOR SUPPLYING DIRECT CURRENT TO A FIRST TRACTION MOTOR, THIRD AND FOURTH POWER SUPPLY CONDUCTORS CONNECTED WITH SAID SECOND GROUP OF BRIDGE RECTIFIER NETWORKS FOR SUPPLYING DIRECT CURRENT TO A SECOND TRACTION MOTOR, MEANS CONNECTING THE NEUTRALS OF EACH GROUP OF THREE-PHASE WINDINGS TOGETHER, MEANS CONNECTING THE RECTIFIER SIDE OF EACH PHASE WINDING OF THE THREE PHASE WINDINGS THAT FEED THE FIRST GROUPS OF RECTIFIERS TOGETHER AT POINTS OPPOSITE THE NEUTRALS OF SAID FIRST GROUP OF THREE-PHASE WINDINGS, AND MEANS CONNECTING THE RECTIFIER SIDE OF EACH PHASE WINDING OF THE THREE PHASE WINDINGS THAT FEED THE SECOND GROUP OF RECTIFIERS TOGETHER AT POINTS WINDINGS, SAID FIRST AND SECOND GROUPS OF THREE THREE-PHASE WINDINGS, SAID FIRST AND SECOND GROUPS OF THREE PHASE WINDINGS BEING WOUND SYMMETRICALLY ON A STATOR
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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) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |