Patent US2731372A successfully refreshed from Google Patents.
US2731372A
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Method of removing the insulation from the ends of assembled commutator wires
Assignee: Hoover Co
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Filing: 1952-06-06
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Granted: 1956-01-17
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Expires: 1972-06-06
Abstract
No abstract record available.
Inventors
- 👤 Carl W Kirsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:05
CPC Classifications
H; H02; H02G; H02G1/00; H02G1/12; H02G1/1275; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/49117; Y10T29/49174; Y10T29/49181; Y10T29/49185; Y10T29/49192
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
THE METHOD OF REMOVING THE INSULATION FROM AND CLEANING THE ENDS OF ASSEMBLED ARMATURE WIRES PREPARATORY TO SECURING THE ENDS TO THE COMMUTATOR SEGMENTS COMPRISING, THE STEPS OF APPLYING A FLAME AT THE INSULATION ON THE ENDS OF THE WIRES TO CHAR THE INSULATION AT THE ENDS WHILE PROTECTING THE INSULATION ON THE REMAINDER OF THE WIRES FROM THE HEAT OF THE FLAME, APPLYING A ROTATIVE ABRASIVE BRUSHING ACTION DOWNWARDLY AGAINST THE ENDS OF THE WIRES TO MOVE THE CHARRED INSULATION FROM ONE SIDE OF THE WIRES AND TO POLISH ONE SIDE OF THE WIRES, MOVING THE ENDS OF THE WIRES UPWARDLY TO EXPOSE THE OTHER SIDE OF THE WIRES AND APPLYING A ROTATIVE ABRASIVE BRUSHING ACTION UPWARDLY AGAINST THE EXPOSED ENDS OF THE WIRES TO REMOVE THE CHARRED INSULATION FORM THE OTHER SIDE OF THE ENDS OF THE WIRES AND TO POLISH THE ENDS OF THE WIRES, THE FOREGOING STEPS BEING CARRIED OUT IN SEQUENCE.
Claim 2
Independent Claim
156 words
THE METHOD OF REMOVING THE INSULATION FROM AND CLEANING THE ENDS OF ASSEMBLED ARMATURE WIRES PREPARATORY TO SECURING THE ENDS TO THE COMMUTATOR SEGMENTS COMPRISING, THE STEPS OF APPLYING A FLAME AT THE INSULATION ON THE ENDS OF THE WIRES TO CHAR THE INSULATION AT THE ENDS WHILE PROTECTING THE INSULATION ON THE REMAINDER OF THE WIRES FROM THE HEAT OF THE FLAME, APPLYING A ROTATIVE ABRASIVE BRUSHING ACTION DOWNWARDLY AGAINST THE ENDS OF THE WIRES TO MOVE THE CHARRED INSULATION FROM ONE SIDE OF THE WIRES AND TO POLISH ONE SIDE OF THE WIRES, MOVING THE ENDS OF THE WIRES UPWARDLY TO EXPOSE THE OTHER SIDE OF THE WIRES AND APPLYING A ROTATIVE ABRASIVE BRUSHING ACTION UPWARDLY AGAINST THE EXPOSED ENDS OF THE WIRES TO REMOVE THE CHARRED INSULATION FORM THE OTHER SIDE OF THE ENDS OF THE WIRES AND TO POLISH THE ENDS OF THE WIRES, THE FOREGOING STEPS BEING CARRIED OUT IN SEQUENCE.
References Cited (Backward Citations)
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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) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |