Patent US3159763A successfully refreshed from Google Patents.
US3159763A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush rigging
Assignee: Motors Liquidation Co
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Filing: 1960-03-07
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Granted: 1964-12-01
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Expires: 1980-03-07
Abstract
No abstract record available.
Inventors
- 👤 Donald E Colvill
- 👤 Robert P Reddy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:52
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/14; H02K5/143; H02K5/148
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A BRUSH HOLDING ASSEMBLY COMPRISING, A PAIR OF ANNULAR INSULATING MEMBERS SECURED TOGETHER IN FACE-TOFACE RELATIONSHIP, SAID INSULATOR MEMBERS HAVING AXIALLY EXTENDING WALL PORTIONS WHICH ABUT EACH OTHER TO FORM RADIALLY EXTENDING BRUSH HOLDING CHAMBERS, BRUSHES SLIDABLE IN SAID BRUSH HOLDING CHAMBERS, A PLURALITY OF PINS HAVING ENDS SUPPORTED BY SAID INSULATOR MEMBERS, A COIL SPRING ENCIRCLING EACH OF SAID PINS HAVING ONE END THEREOF ENGAGING A PROJECTING PORTION OF ONE OF SAID INSULATOR MEMBERS AND HAVING ANOTHER END ENGAGING A BRUSH FOR URGING SAID BRUSH IN ONE DIRECTION, EACH COIL SPRING BEING POSITIONED BETWEEN SAID INSULATOR MEMBERS, AND FASTENER MEANS FOR HOLDING SAID INSULATOR MEMBERS TOGETHER.
Claim 2
Dependent Claim
107 words
A BRUSH HOLDING ASSEMBLY COMPRISING, A PAIR OF ANNULAR INSULATING MEMBERS SECURED TOGETHER IN FACE-TOFACE RELATIONSHIP, SAID INSULATOR MEMBERS HAVING AXIALLY EXTENDING WALL PORTIONS WHICH ABUT EACH OTHER TO FORM RADIALLY EXTENDING BRUSH HOLDING CHAMBERS, BRUSHES SLIDABLE IN SAID BRUSH HOLDING CHAMBERS, A PLURALITY OF PINS HAVING ENDS SUPPORTED BY SAID INSULATOR MEMBERS, A COIL SPRING ENCIRCLING EACH OF SAID PINS HAVING ONE END THEREOF ENGAGING A PROJECTING PORTION OF ONE OF SAID INSULATOR MEMBERS AND HAVING ANOTHER END ENGAGING A BRUSH FOR URGING SAID BRUSH IN ONE DIRECTION, EACH COIL SPRING BEING POSITIONED BETWEEN SAID INSULATOR MEMBERS, AND FASTENER MEANS FOR HOLDING SAID INSULATOR MEMBERS TOGETHER.
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) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |