US3112419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing and brush retainer
Assignee: Portable Electric Tools Inc
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Filing: 1960-04-29
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Granted: 1963-11-26
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Expires: 1980-04-29
Abstract
No abstract record available.
Inventors
- 👤 Gerhardt A Dobslaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:44
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/14; H02K5/143; H02K5/148
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
IN AN ELECTRIC MOTOR HAVING A SHAFT AND AN ELEMENT ON THE SHAFT TO BE ENGAGED BY A PAIR OF BRUSHES, THE COMBINATION COMPRISING: A FRAME HAVING A PAIR OF SPACED RECESSES OPPOSITELY ADJACENT THE ELEMENT TO BE ENGAGED BY THE BRUSHES AND OPENING OUTWARDLY IN ONE DIRECTION FROM THE FRAME, AND A THIRD RECESS ADJACENT THE SHAFT GENERALLY BETWEEN SAID PAIR OF RECESSES AND OPENING OUTWARDLY IN SAID DIRECTION; A PAIR OF BRUSHES FITTED ONE EACH IN THE PAIR OF RECESSES TO ENGAGE THE ELEMENT; A BEARING FITTED IN THE THIRD RECESS TO CARRY THE SHAFT; AND A CLIP FORMED OF THIN RESILIENT MATERIAL AND HAVING A PAIR OF CONNECTING PORTIONS REMOVABLY SECURED TO THE FRAME AT OPPOSITE SIDES OF SAID THIRD RECESS, A PAIR OF ARMS OVERLYING EACH OF SAID PAIR OF RECESSES FOR RETAINING THE BRUSHES AGAINST MOVEMENT OUTWARDLY THEREFROM, AND ANOTHER PORTION BETWEEN SAID CONNECTING PORTIONS OVERLYING SAID THIRD RECESS FOR RETAINING THE BEARING AGAINST MOVEMENT OUTWARDLY THEREFROM.
Claim 2
Dependent Claim
162 words
IN AN ELECTRIC MOTOR HAVING A SHAFT AND AN ELEMENT ON THE SHAFT TO BE ENGAGED BY A PAIR OF BRUSHES, THE COMBINATION COMPRISING: A FRAME HAVING A PAIR OF SPACED RECESSES OPPOSITELY ADJACENT THE ELEMENT TO BE ENGAGED BY THE BRUSHES AND OPENING OUTWARDLY IN ONE DIRECTION FROM THE FRAME, AND A THIRD RECESS ADJACENT THE SHAFT GENERALLY BETWEEN SAID PAIR OF RECESSES AND OPENING OUTWARDLY IN SAID DIRECTION; A PAIR OF BRUSHES FITTED ONE EACH IN THE PAIR OF RECESSES TO ENGAGE THE ELEMENT; A BEARING FITTED IN THE THIRD RECESS TO CARRY THE SHAFT; AND A CLIP FORMED OF THIN RESILIENT MATERIAL AND HAVING A PAIR OF CONNECTING PORTIONS REMOVABLY SECURED TO THE FRAME AT OPPOSITE SIDES OF SAID THIRD RECESS, A PAIR OF ARMS OVERLYING EACH OF SAID PAIR OF RECESSES FOR RETAINING THE BRUSHES AGAINST MOVEMENT OUTWARDLY THEREFROM, AND ANOTHER PORTION BETWEEN SAID CONNECTING PORTIONS OVERLYING SAID THIRD RECESS FOR RETAINING THE BEARING AGAINST MOVEMENT OUTWARDLY THEREFROM.
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) | 1966-11-25 | 1967-05-27 | 1967-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-25 | 1971-05-27 | 1971-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-25 | 1975-05-27 | 1975-11-26 | $7700.00 | Window Closed / Lapsed |