Patent US3191085A successfully refreshed from Google Patents.
US3191085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush holder for electric commutator machine
Assignee: US Philips Corp
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Filing: 1963-03-14
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Granted: 1965-06-22
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Expires: 1983-03-14
Abstract
No abstract record available.
Inventors
- 👤 Wieger Van Dijk
- 👤 Krikke Minne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:13
CPC Classifications
H; H01; H01R; H01R39/00; H01R39/02; H01R39/38; H01R39/381
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN A LOW POWER ELECTRIC MOTOR THE COMBINATION COMPRISING A BEARING CARRIER OF INSULATING MATERIAL HAVING APERTURES FOR RECEIVING BRUSHES, A BRUSH IN EACH SAID APERTURE ENGAGING ONE WALL THEREOF, A SECOND APERTURE IN SAID BEARING CARRIER CONNECTED WITH SAID BRUSH APERTURE, A HELICAL SPRING IN SAID SECOND APERTURE, A PRESSURE PIECE HINGEDLY CONNECTED AT ONE END WITH SAID BEARING CARRIER AND OVERLYING SAID HELICAL SPRING, ONE LEG OF SAID HELICAL SPRING ENGAGING SAID PRESSURE PIECE FOR URGING THE OTHER END OF SAID PRESSURE PIECE AGAINST SAID BRUSH, SAID OTHER END OF SAID PRESSURE PIECE BEING CURVED AWAY FROM SAID BRUCH AND ENGAGING SAID BRUSH AT A POINT OF TANGENCY BETWEEN THE CENTER LINE OF SAID BRUSHAND SAID WALL OF SAID BEARING CARRIER.
Claim 2
Dependent Claim
123 words
IN A LOW POWER ELECTRIC MOTOR THE COMBINATION COMPRISING A BEARING CARRIER OF INSULATING MATERIAL HAVING APERTURES FOR RECEIVING BRUSHES, A BRUSH IN EACH SAID APERTURE ENGAGING ONE WALL THEREOF, A SECOND APERTURE IN SAID BEARING CARRIER CONNECTED WITH SAID BRUSH APERTURE, A HELICAL SPRING IN SAID SECOND APERTURE, A PRESSURE PIECE HINGEDLY CONNECTED AT ONE END WITH SAID BEARING CARRIER AND OVERLYING SAID HELICAL SPRING, ONE LEG OF SAID HELICAL SPRING ENGAGING SAID PRESSURE PIECE FOR URGING THE OTHER END OF SAID PRESSURE PIECE AGAINST SAID BRUSH, SAID OTHER END OF SAID PRESSURE PIECE BEING CURVED AWAY FROM SAID BRUCH AND ENGAGING SAID BRUSH AT A POINT OF TANGENCY BETWEEN THE CENTER LINE OF SAID BRUSHAND SAID WALL OF SAID BEARING CARRIER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |