US3277325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush holder mechanism for electric motor
Assignee: G I CO
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Filing: 1964-02-12
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Granted: 1966-10-04
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Expires: 1984-02-12
Abstract
No abstract record available.
Inventors
- 👤 Jack W Staff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:14
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/14; H02K5/143; H02K5/148
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
BRUSH HOLDER MECHANISM FOR ELECTRIC MOTORS OF THE TYPE HAVING A COMMUTATOR AT ONE END OF A CENTRALLY DISPOSED ARMATURE AND COMPRISING A FIELD STRUCTURE ENCLOSING A WOUND PORTION OF THE ARMATURE, SAID MECHANISM COMPRISING A PAIR OF BRUSH SUPPORT BRACKETS, A SUBSTANTIALLY FLAT BRUSH CARRIER PLATE, SAID BRUSH CARRIER PLATE PROVIDED WITH A CENTRAL APERTURE THROUGH WHICH SAID COMMUTATOR IS ADAPTED TO PROJECT AND HAVING SLOTS AT EITHER END THEREOF, A PAIR OF BRUSHES CARRIED BY SAID BRUSH CARRIER PLATE AT EITHER SIDE OF ITS CENTRALLY APERTURED PORTION AND ANGLED WITH RESPECT TO THE DISPOSITION OF SAID BRACKETS ON SAID BRUSH CARRIER PLATE, SAID BRUSHES EXTENDING INWARDLY OF SAID PLATE AND CONTACTING SAID COMMUTATOR, SAID BRACKETS BEING PROVIDED WITH A TRANSVERSELY ARCUATELY CURVED STEM, A YOKE PORTION, AN UPWARDLY EXTENDING PORTION PROVIDED WITH A PAIR OF TANGS ADAPTED TO ENTER THE SAID SLOTS IN THE BRUSH CARRIER PLATE AND TO SECURE SAID BRACKETS TO THE SAID PLATE, THE OPPOSITE EDGES OF SAID ARCUATE STEM OF EACH OF THE BRACKETS BEING WEDGINGLY AND SPRING PRESSED INTO AN OPPOSITE SLOT IN THE OUTER PERIPHERY OF THE SAID ARMATURE.
Claim 2
Dependent Claim
187 words
BRUSH HOLDER MECHANISM FOR ELECTRIC MOTORS OF THE TYPE HAVING A COMMUTATOR AT ONE END OF A CENTRALLY DISPOSED ARMATURE AND COMPRISING A FIELD STRUCTURE ENCLOSING A WOUND PORTION OF THE ARMATURE, SAID MECHANISM COMPRISING A PAIR OF BRUSH SUPPORT BRACKETS, A SUBSTANTIALLY FLAT BRUSH CARRIER PLATE, SAID BRUSH CARRIER PLATE PROVIDED WITH A CENTRAL APERTURE THROUGH WHICH SAID COMMUTATOR IS ADAPTED TO PROJECT AND HAVING SLOTS AT EITHER END THEREOF, A PAIR OF BRUSHES CARRIED BY SAID BRUSH CARRIER PLATE AT EITHER SIDE OF ITS CENTRALLY APERTURED PORTION AND ANGLED WITH RESPECT TO THE DISPOSITION OF SAID BRACKETS ON SAID BRUSH CARRIER PLATE, SAID BRUSHES EXTENDING INWARDLY OF SAID PLATE AND CONTACTING SAID COMMUTATOR, SAID BRACKETS BEING PROVIDED WITH A TRANSVERSELY ARCUATELY CURVED STEM, A YOKE PORTION, AN UPWARDLY EXTENDING PORTION PROVIDED WITH A PAIR OF TANGS ADAPTED TO ENTER THE SAID SLOTS IN THE BRUSH CARRIER PLATE AND TO SECURE SAID BRACKETS TO THE SAID PLATE, THE OPPOSITE EDGES OF SAID ARCUATE STEM OF EACH OF THE BRACKETS BEING WEDGINGLY AND SPRING PRESSED INTO AN OPPOSITE SLOT IN THE OUTER PERIPHERY OF THE SAID ARMATURE.
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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |