US3124735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sampiftro ctai
Assignee: —
•
Filing: —
•
Granted: 1964-03-10
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Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:02
CPC Classifications
H; H02; H02P; H02P27/00; H02P27/04; H02K; H02K17/00; H02K17/02; H02K17/12; H02M; H02M3/00; H02M3/22; H02M3/24; H02M3/28; H02M3/325; H02M3/335; H02M3/338; H02P25/00; H02P25/02; H02P25/06; H02P25/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
AN ELECTRIC MOTOR SYSTEM COMPRISING: (A) A ROTATABLY MOUNTED ROTOR; (B) A STATOR MOUNTED ADJACENT TO SAID ROTOR; (C) A PLURALITY OF FIELD WINDINGS MOUNTED ON SAID STATOR, AND EACH CONSTRUCTED TO BE CONNECTED AT ONE SIDE TO ONE POLARITY OF A D.C.-POWER SOURCE; (D) A PLURALITY OF TRIGGER DEVICES RESPECTIVELY OPERATIVE TO CONNECT THE OTHER SIDE OF ALL OF SAID FIELD WINDINGS TO THE OPPOSITE POLARITY OF SUCH D.C.-POWER SOURCE; (E) A PLURALITY OF SEPARATE ELECTRICAL IMPEDANCE MEANS; AND (F) A PLURALITY OF CONTROL WINDINGS RESPECTIVELY INDUCTIVELY COUPLED WITH EACH OF SAID FIELD WINDINGS,
Claim 2
Dependent Claim
95 words
AN ELECTRIC MOTOR SYSTEM COMPRISING: (A) A ROTATABLY MOUNTED ROTOR; (B) A STATOR MOUNTED ADJACENT TO SAID ROTOR; (C) A PLURALITY OF FIELD WINDINGS MOUNTED ON SAID STATOR, AND EACH CONSTRUCTED TO BE CONNECTED AT ONE SIDE TO ONE POLARITY OF A D.C.-POWER SOURCE; (D) A PLURALITY OF TRIGGER DEVICES RESPECTIVELY OPERATIVE TO CONNECT THE OTHER SIDE OF ALL OF SAID FIELD WINDINGS TO THE OPPOSITE POLARITY OF SUCH D.C.-POWER SOURCE; (E) A PLURALITY OF SEPARATE ELECTRICAL IMPEDANCE MEANS; AND (F) A PLURALITY OF CONTROL WINDINGS RESPECTIVELY INDUCTIVELY COUPLED WITH EACH OF SAID FIELD WINDINGS,
References Cited (Backward Citations)
US2994026A
Cited
US3083326A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |