US3430126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-phase alternating current generator having output winding phase displacement and compensating transformers
Assignee: CA Parsons and Co Ltd
•
Filing: 1966-08-24
•
Granted: 1969-02-25
•
Expires: 1986-08-24
Abstract
No abstract record available.
Inventors
- 👤 Philip Richardson
- 👤 Norman Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:57
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/04; H02K3/12; H02K19/00; H02K19/16; H02K19/34; H02K19/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
MULTI-PHASE ALTERNATING CURRENT ELECTRICAL APPARATUS COMPRISING A MULTI-PHASE ALTERNATING CURRENT DYNAMO-ELECTRIC MACHINE, SAID MACHINE HAVING A STATOR WINDING COMPRISING A PLURALITY OF SEPARATE THREE-PHASE WINDINGS IN WHICH THE PHASE VOLTAGES OF THE THREE-PHASE WINDINGS ARE EQUAL IN MAGNITUDE BUT EACH PHASE VOLTAGE ON ONE THREEPHASE WINDING HAS A PHASE DISPLACEMENT WITH RESPECT TO ITS CORRESPONDING PHASE VOLTAGE IN EACH OTHER THREE-PHASE WINDING, THE PHASE DISPLACEMENTS BETWEEN THE PHASE VOLTAGES OF ANY ONE THREE-PHASE WINDING AND THE RESPECTIVE CORRESPONDING PHASE VOLTAGES OF ANOTHER THREE-PHASE WINDING BEING EQUAL; AND MULTI-PHASE TRANSFORMER MEANS HAVING ONE SET OF WINDINGS CONNECTED TO THE WINDINGS OF THE MACHINE AND ANOTHER SET FOR CONNECTION TO A THREE-PHASE SUPPLY.
Claim 2
Dependent Claim
111 words
MULTI-PHASE ALTERNATING CURRENT ELECTRICAL APPARATUS COMPRISING A MULTI-PHASE ALTERNATING CURRENT DYNAMO-ELECTRIC MACHINE, SAID MACHINE HAVING A STATOR WINDING COMPRISING A PLURALITY OF SEPARATE THREE-PHASE WINDINGS IN WHICH THE PHASE VOLTAGES OF THE THREE-PHASE WINDINGS ARE EQUAL IN MAGNITUDE BUT EACH PHASE VOLTAGE ON ONE THREEPHASE WINDING HAS A PHASE DISPLACEMENT WITH RESPECT TO ITS CORRESPONDING PHASE VOLTAGE IN EACH OTHER THREE-PHASE WINDING, THE PHASE DISPLACEMENTS BETWEEN THE PHASE VOLTAGES OF ANY ONE THREE-PHASE WINDING AND THE RESPECTIVE CORRESPONDING PHASE VOLTAGES OF ANOTHER THREE-PHASE WINDING BEING EQUAL; AND MULTI-PHASE TRANSFORMER MEANS HAVING ONE SET OF WINDINGS CONNECTED TO THE WINDINGS OF THE MACHINE AND ANOTHER SET FOR CONNECTION TO A THREE-PHASE SUPPLY.
References Cited (Backward Citations)
US2886762A
Cited
US2812488A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |