US3271605A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush holder assembly
Assignee: Motors Liquidation Co
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Filing: 1963-12-09
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Granted: 1966-09-06
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Expires: 1983-12-09
Abstract
No abstract record available.
Inventors
- 👤 Drabik Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:13
CPC Classifications
H; H01; H01R; H01R39/00; H01R39/02; H01R39/38; H01R39/381
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
134 words
A BRUSH HOLDER ARRANGEMENT FOR A DYNAMOELECTRIC MACHINE COMPRISING, A BRUSH HOLDER FORMED OF DIE CAST ELECTRICALLY CONDUCTIVE MATERIAL, SAID BRUSH HOLDER HAVING A PLURALITY OF BRUSH HOLDING CHAMBERS, A PAIR OF BRUSHES DISPOSED IN EACH OF SAID CHAMBER, A BRUSH BRUSHES ENGAGING EACH OTHER WITHIN EACH CHAMBER, A BRUSH SPRING SUPPORT ASSEMBLY FOR EACH PAIR OF BRUSHES, SAID ASSEMBLY INCLUDING A U-SHAPED MEMBER FORMED OF INSULATING MATERIAL, A PAIR OF CONSTANT FORCE SPRINGS CARRIED BY EACH SUPPORT ASSEMBLY AND ENGAGEABLE WITH ONE END OF SAID BRUSHES FOR URGING SAID BRUSHES TOWARD A ROTATING CONDUCTOR AND A PAIR OF SPRING ARMS FOR EACH OF SAID SUPPORTS, EACH OF SAID SPRING ARMS HAVING SLOTS WHICH RECEIVE INTEGRAL PROJECTING PORTIONS OF SAID BRUSH HOLDER, AND CONDUCTOR MEANS CONNECTING ALL OF SAID BRUSHES WITH SAID BRUSH HOLDER.
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |