US3248641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load sharing resistor apparatus for a rotating rectifier dynamoelectric machine
Assignee: Westinghouse Electric Corp
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Filing: 1962-11-01
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Granted: 1966-04-26
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Expires: 1982-11-01
Abstract
No abstract record available.
Inventors
- 👤 Alexander S Wolanin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:09
CPC Classifications
H; H02; H02K; H02K19/00; H02K19/16; H02K19/36; H02K11/00; H02K11/04; H02K11/042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
IN A DYNAMOELECTRIC MACHINE HAVING A ROTATABLE SHAFT, WINDING MEANS ON THE SHAFT HAVING A VOLTAGE INDUCED THEREIN AS THE SHAFT ROTATES, AND LOAD MEANS ON THE SHAFT FOR UTILIZING THE VOLTAGE INDUCED IN THE WINDING MEANS, IN COMBINATION, MEANS FORMING A PLURALITY OF PARALLEL ELECTRICAL PATHS CONNECTING THE WINDING MEANS TO THE LOAD MEANS, EACH OF SAID PATHS INCLUDING IN SERIES AT LEAST ONE RESISTOR AND AT LEAST ONE RECTIFIER, ALL OF SAID RECTIFIERS BEING SIMILAR AND ALL OF SAID RESISTORS NORMALLY HAVING SIMILAR RESISTANCE VALUES, THE RESISTORS BEING MOUNTED AT SPACED INTERVALS AROUND THE PERIPHERY OF THE SHAFT AND INSULATED THEREFROM, SAID RESISTORS BEING U-SHAPED WITH THE BOTTOM PORTION OF THE "U" AT THE ENDS OF THE RESISTORS REMOTE FROM THE SHAFT, SAID RESISTORS BEING COOLED BY AIR CIRCULATED THEREOVER AS THE SHAFT ROTATES, AND MEANS FOR SECURELY BINDING THE RESISTORS IN POSITION ON THE SHAFT, THE RESISTORS TENDING TO EQUALIZE THE CURRENTS THROUGH THE RECTIFIERS OF SAID PLURALITY OF PARALLEL PATHS.
Claim 2
Dependent Claim
164 words
IN A DYNAMOELECTRIC MACHINE HAVING A ROTATABLE SHAFT, WINDING MEANS ON THE SHAFT HAVING A VOLTAGE INDUCED THEREIN AS THE SHAFT ROTATES, AND LOAD MEANS ON THE SHAFT FOR UTILIZING THE VOLTAGE INDUCED IN THE WINDING MEANS, IN COMBINATION, MEANS FORMING A PLURALITY OF PARALLEL ELECTRICAL PATHS CONNECTING THE WINDING MEANS TO THE LOAD MEANS, EACH OF SAID PATHS INCLUDING IN SERIES AT LEAST ONE RESISTOR AND AT LEAST ONE RECTIFIER, ALL OF SAID RECTIFIERS BEING SIMILAR AND ALL OF SAID RESISTORS NORMALLY HAVING SIMILAR RESISTANCE VALUES, THE RESISTORS BEING MOUNTED AT SPACED INTERVALS AROUND THE PERIPHERY OF THE SHAFT AND INSULATED THEREFROM, SAID RESISTORS BEING U-SHAPED WITH THE BOTTOM PORTION OF THE "U" AT THE ENDS OF THE RESISTORS REMOTE FROM THE SHAFT, SAID RESISTORS BEING COOLED BY AIR CIRCULATED THEREOVER AS THE SHAFT ROTATES, AND MEANS FOR SECURELY BINDING THE RESISTORS IN POSITION ON THE SHAFT, THE RESISTORS TENDING TO EQUALIZE THE CURRENTS THROUGH THE RECTIFIERS OF SAID PLURALITY OF PARALLEL PATHS.
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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |