US3132296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamoelectric machine excitation system
Assignee: Carrier Corp
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Filing: 1960-02-01
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Granted: 1964-05-05
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Expires: 1980-02-01
Abstract
No abstract record available.
Inventors
- 👤 Paul I Nippes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:53
CPC Classifications
H; H02; H02K; H02K19/00; H02K19/16; H02K19/26; H02K19/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A DYNAMOELECTRIC MACHINE HAVING A FIELD WINDING, AN ARMATURE WINDING ADAPTED TO HAVE A FUNDAMENTAL FREQUENCY VOLTAGE GENERATED THEREIN BY SAID FIELD WINDING AND A HARMONIC WINDING COMPRISING AT LEAST ONE PHASE WINDING HAVING A POLE NUMBER GREATER THAN THE POLE NUMBER OF SAID FIELD WINDING, SAID HARMONIC WINDING BEING CONSTRUCTED SO AS TO HAVE GENERATED THEREIN BY SAID FIELD WINDING AND APPEARING AT ITS TERMINALS A VOLTAGE HAVING A FREQUENCY WHICH IS A PREDETERMINED ODD HARMONIC OF THE FUNDAMENTAL FREQUENCY OF AN ALTERNATING VOLTAGE GENERATED IN SAID ARMATURE WINDING, SAID PHASE WINDING BEING FURTHER DESIGNED TO SUBSTANTIALLY CANCEL VOLTAGES OF SAID FUNDAMENTAL FREQUENCY.
Claim 2
Dependent Claim
104 words
A DYNAMOELECTRIC MACHINE HAVING A FIELD WINDING, AN ARMATURE WINDING ADAPTED TO HAVE A FUNDAMENTAL FREQUENCY VOLTAGE GENERATED THEREIN BY SAID FIELD WINDING AND A HARMONIC WINDING COMPRISING AT LEAST ONE PHASE WINDING HAVING A POLE NUMBER GREATER THAN THE POLE NUMBER OF SAID FIELD WINDING, SAID HARMONIC WINDING BEING CONSTRUCTED SO AS TO HAVE GENERATED THEREIN BY SAID FIELD WINDING AND APPEARING AT ITS TERMINALS A VOLTAGE HAVING A FREQUENCY WHICH IS A PREDETERMINED ODD HARMONIC OF THE FUNDAMENTAL FREQUENCY OF AN ALTERNATING VOLTAGE GENERATED IN SAID ARMATURE WINDING, SAID PHASE WINDING BEING FURTHER DESIGNED TO SUBSTANTIALLY CANCEL VOLTAGES OF SAID FUNDAMENTAL FREQUENCY.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |