US3349265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase insulation for polyphase dynamoelectric machines
Assignee: Allis Chalmers Corp
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Filing: 1965-06-03
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Granted: 1967-10-24
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Expires: 1985-06-03
Abstract
No abstract record available.
Inventors
- 👤 Henry T Murdock
- 👤 Stanley M Ringel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:36
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/32; H02K3/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
IN COMBINATION WITH A POLYPHASE DYNAMOELECTRIC MACHINE HAVING A BODY WITH A PLURALITY OF CIRCUMFERENTIALLY SPACED SLOTS INCLUDING A PLURALITY OF COILS PLACED THEREIN WITH THE ENDS TURNS THEREOF EXTENDING BEYOND THE END OF THE BODY, PHASE INSULATION COMPRISING A SHEETLIKE ELECTRICALLY INSULATING MATERIAL POSITIONED BETWEEN THE COIL END TURNS OF EACH PHASE, SAID INSULATING MATERIAL HAVING A CONFIGURATION TO COVER ONLY THOSE SLOTS WHICH HAVE A COIL SIDE THEREIN AND LEAVE THE REMAINING UNFILLED COIL SLOTS UNCOVERED.
Claim 2
Dependent Claim
78 words
IN COMBINATION WITH A POLYPHASE DYNAMOELECTRIC MACHINE HAVING A BODY WITH A PLURALITY OF CIRCUMFERENTIALLY SPACED SLOTS INCLUDING A PLURALITY OF COILS PLACED THEREIN WITH THE ENDS TURNS THEREOF EXTENDING BEYOND THE END OF THE BODY, PHASE INSULATION COMPRISING A SHEETLIKE ELECTRICALLY INSULATING MATERIAL POSITIONED BETWEEN THE COIL END TURNS OF EACH PHASE, SAID INSULATING MATERIAL HAVING A CONFIGURATION TO COVER ONLY THOSE SLOTS WHICH HAVE A COIL SIDE THEREIN AND LEAVE THE REMAINING UNFILLED COIL SLOTS UNCOVERED.
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) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |