US3313993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor-generator using a resonance circuit
Assignee: Individual
•
Filing: 1963-12-20
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Granted: 1967-04-11
•
Expires: 1983-12-20
Abstract
No abstract record available.
Inventors
- 👤 Rupp Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:12
CPC Classifications
H; H02; H02K; H02K99/00; H02K99/20
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
152 words
AN ELECTRIC MACHINE COMPRISING: (A) A STATOR HAVING A SUBSTANTIALLY CIRCULAR SERIES OF SPACED POLES FORMED OF MAGNETIC MATERIAL, (B) A WINDING FOR EACH OF THE STATOR POLES, THE WINDINGS BEING CONNECTED IN SERIES, (C) A CONDENSER CONNECTED IN PARALLEL WITH THE SERIESCONNECTED STATOR WINDINGS TO PROVIDE A RESONANCE CIRCUIT, (D) A ROTOR MOUNTED FOR ROTATION WITHIN THE STATOR AND HAVING A SUBSTANTIALLY CIRCULAR SERIES OF POLES FORMED OF PERMANENT MAGNETS. (E) A SOURCE OF DIRECT CURRENT, AND (F) MEANS SUPPLYING PULSES OF DIRECT CURRENT FROM THE SOURCE TO THE RESONANCE CIRCUIT, (G) THE RESONANCE CIRCUIT HAVING A PREDETERMINED ALTERNATING CURRENT FREQUENCY, AND (H) THE SAID MEANS SUPPLYING THE DIRECT CURRENT PULSE FROM THE SOURCE TO THE RESONANCE CIRCUIT AT EACH HALF CYCLE OF AND IN SYNCHRONIZATION WITH THE RESONANCE CIRCUIT CURRENT FREQUENCY AND DURING THE FIRST 90 ELECTRICAL DEGREES OF EACH HALF CYCLE WITH RELATIVELY REVERSED POLARITY OF EACH HALF CYCLE.
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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) | 1970-04-10 | 1970-10-10 | 1971-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-10 | 1974-10-10 | 1975-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-10 | 1978-10-10 | 1979-04-11 | $7700.00 | Window Closed / Lapsed |