US3179828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amortisseur winding for dynamo-electric machines
Assignee: Allis Chalmers Corp
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Filing: 1961-04-06
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Granted: 1965-04-20
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Expires: 1981-04-06
Abstract
No abstract record available.
Inventors
- 👤 Arthur F Apking
- 👤 Franklin H Grooms
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:42
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/04; H02K3/12; H02K3/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A ROTOR FOR AN ALTERNATING CURRENT DYNAMOELECTRIC MACHINE COMPRISING A CORE HAVING A PLURALITY OF ARCUATELY SPACED SLOTS NEAR ITS PERIPHERY, COILS POSITIONED IN SOME OF SAID SLOTS AND EXTENDING BEYOND SAID CORE TO FORM A WINDING FOR SAID ROTOR AND DAMPER BARS POSITIONED IN SOME OF SAID SLOTS NOT CONTAINING SAID COILS, SAID DAMPER BARS EXTENDING BEYOND THE ENDS OF SAID CORE AND OVER SAID EXTENDED PORTIONS OF SAID COILS, THERMAL SETTING TAPE WOUND AROUND THE EXTENDED PORTIONS OF SAID COILS BETWEEN SAID EXTENDED PORTIONS OF SAID COILS AND SAID BARS TO RETAIN SAID COILS IN POSITION AND INSULATE THEM FROM SAID DAMPER BARS, THE EXTENDED PORTIONS OF SAID BARS BEING INTERCONNECTED ELECTRICALLY BY STRANDS OF BANDING WIRE WOUND AROUND THE OUTER PERIPHERY OF SAID BARS.
Claim 2
Dependent Claim
127 words
A ROTOR FOR AN ALTERNATING CURRENT DYNAMOELECTRIC MACHINE COMPRISING A CORE HAVING A PLURALITY OF ARCUATELY SPACED SLOTS NEAR ITS PERIPHERY, COILS POSITIONED IN SOME OF SAID SLOTS AND EXTENDING BEYOND SAID CORE TO FORM A WINDING FOR SAID ROTOR AND DAMPER BARS POSITIONED IN SOME OF SAID SLOTS NOT CONTAINING SAID COILS, SAID DAMPER BARS EXTENDING BEYOND THE ENDS OF SAID CORE AND OVER SAID EXTENDED PORTIONS OF SAID COILS, THERMAL SETTING TAPE WOUND AROUND THE EXTENDED PORTIONS OF SAID COILS BETWEEN SAID EXTENDED PORTIONS OF SAID COILS AND SAID BARS TO RETAIN SAID COILS IN POSITION AND INSULATE THEM FROM SAID DAMPER BARS, THE EXTENDED PORTIONS OF SAID BARS BEING INTERCONNECTED ELECTRICALLY BY STRANDS OF BANDING WIRE WOUND AROUND THE OUTER PERIPHERY OF SAID BARS.
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) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |