US3219860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush rigging for dynamoelectric machines
Assignee: Motors Liquidation Co
•
Filing: 1961-09-21
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Granted: 1965-11-23
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Expires: 1981-09-21
Abstract
No abstract record available.
Inventors
- 👤 David C Redick
- 👤 Willard C Shaw
- 👤 Arza D Heiny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:52
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/14; H02K5/141; H02K11/00; H02K11/04; H02K11/049; H02K11/05; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/5313; Y10T29/53143
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
IN COMBINATION, A DYNAMOELECTRIC MACHINE HAVING AN END FRAME, A ROTOR FOR SAID DYNAMOELECTRIC MACHINE INCLUDING A SHAFT, SAID SHAFT, A BRUSHHOLDER HAVING AT LEAST ROTATABLE WITH SAID SHAFT, A BRUSHHOLDER HAVING AT LEAST A PORTION THEREOF LOCATED ON THE INNER SIDE OF SAID END FRAME, A BRUSH SLIDABLY SUPPORTED BY SAID BRUSHHOLDER, RESILIENT MEANS FOR URGING SAID BRUSH INTO CONTACT WITH SAID CONDUCTOR, AN OPENING IN SAID END FRAME, AND AT LEAST ONE OPENING IN SAID PORTION OF SAID BRUSHHOLDER ALIGNED WITH SAID OPENING IN SAID END FRAME, A BRUSH RETAINING MEANS RECEIVED BY SAID ALIGNED OPENINGS OF SAID
Claim 2
Dependent Claim
100 words
IN COMBINATION, A DYNAMOELECTRIC MACHINE HAVING AN END FRAME, A ROTOR FOR SAID DYNAMOELECTRIC MACHINE INCLUDING A SHAFT, SAID SHAFT, A BRUSHHOLDER HAVING AT LEAST ROTATABLE WITH SAID SHAFT, A BRUSHHOLDER HAVING AT LEAST A PORTION THEREOF LOCATED ON THE INNER SIDE OF SAID END FRAME, A BRUSH SLIDABLY SUPPORTED BY SAID BRUSHHOLDER, RESILIENT MEANS FOR URGING SAID BRUSH INTO CONTACT WITH SAID CONDUCTOR, AN OPENING IN SAID END FRAME, AND AT LEAST ONE OPENING IN SAID PORTION OF SAID BRUSHHOLDER ALIGNED WITH SAID OPENING IN SAID END FRAME, A BRUSH RETAINING MEANS RECEIVED BY SAID ALIGNED OPENINGS OF SAID
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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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |