Patent US3226497A successfully refreshed from Google Patents.
US3226497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush holder assembly with cantilever spring contact means
Assignee: Motors Liquidation Co
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Filing: 1962-02-19
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Granted: 1965-12-28
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Expires: 1982-02-19
Abstract
No abstract record available.
Inventors
- 👤 Frank J Terkoski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:00
CPC Classifications
H; H02; H02M; H02M1/00; H02M1/20; H02M1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A BRUSH HOLDER ASSEMBLY FOR AN ELECTRIC TRANSMITTER COMRPISING A HOUSING WITH A CUP-SHAPED RECESS, A DRIVE SHAFT JOURNALLED IN THE HOUSING, A DISC OF INSULATING MATERIAL DISPOSED WITHIN SAID RECESS AND HAVING A PAIR OF AXIALLY EXTENDING PERIPERAL GROOVES, A DRIVE PLATE CONNECTED TO SAID DRIVE SHAFT HAVING A PAIR OF TANGS DISPOSED IN THE GROOVES OF SAID DISC FOR IMPARTING ROTATION THERETO, A PAIR OF CANTILEVER SPRINGS, EACH CNATILEVER SPRING HAVING AN INNER END PORTION DISPOSED IN ONE OF SAID PERIPHERAL GROOVES AND RETAINED THEREIN BY ONE OF SAID TANGS WHEREBY SAID PAIR OF CANTILEVER SPRINGS ARE ELECTRICALLY INTERCONNECTED BY SAID DRIVE PLATE, EACH CANTILEVER SPRING CARRYING A BRUSH AT ITS OUTER END, AND A UNITARY CANTILEVER SPRING ASSEMBLY ATTACHED TO THE FRONT FACE OF SAID DIDC HAVING A PLURALITY OF CANTILEVER SPRING ARMS, EACH OF WHICH CARRIES A BRUSH AT ITS OUTER END.
Claim 2
Dependent Claim
146 words
A BRUSH HOLDER ASSEMBLY FOR AN ELECTRIC TRANSMITTER COMRPISING A HOUSING WITH A CUP-SHAPED RECESS, A DRIVE SHAFT JOURNALLED IN THE HOUSING, A DISC OF INSULATING MATERIAL DISPOSED WITHIN SAID RECESS AND HAVING A PAIR OF AXIALLY EXTENDING PERIPERAL GROOVES, A DRIVE PLATE CONNECTED TO SAID DRIVE SHAFT HAVING A PAIR OF TANGS DISPOSED IN THE GROOVES OF SAID DISC FOR IMPARTING ROTATION THERETO, A PAIR OF CANTILEVER SPRINGS, EACH CNATILEVER SPRING HAVING AN INNER END PORTION DISPOSED IN ONE OF SAID PERIPHERAL GROOVES AND RETAINED THEREIN BY ONE OF SAID TANGS WHEREBY SAID PAIR OF CANTILEVER SPRINGS ARE ELECTRICALLY INTERCONNECTED BY SAID DRIVE PLATE, EACH CANTILEVER SPRING CARRYING A BRUSH AT ITS OUTER END, AND A UNITARY CANTILEVER SPRING ASSEMBLY ATTACHED TO THE FRONT FACE OF SAID DIDC HAVING A PLURALITY OF CANTILEVER SPRING ARMS, EACH OF WHICH CARRIES A BRUSH AT ITS OUTER END.
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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) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |