US3177388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush holder assembly for electric motor
Assignee: Singer Co
•
Filing: 1960-03-18
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Granted: 1965-04-06
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Expires: 1980-03-18
Abstract
No abstract record available.
Inventors
- 👤 Albert N Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:49
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/14; H02K5/143; H02K5/148
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A BRUSH HOLDER UNIT COMPRISING A CARBON BRUSH, AN INSULATING BRUSH HOLDER BODY HAVING A RECESS RECEIVING SAID BRUSH, TWO RIBS FORMED ON ONE SIDE FACE OF SAID INSULATING BRUSH HOLDER BODY AND DEFINING A CHANNEL THEREBETWEEN, TWO RIBS FORMED ON ANOTHER SIDE FACE OF SAID INSULATING BRUSH HOLDER BODY, AND DEFINING A CHANNEL THEREBETWEEN, AND A BOWED SPRING CLIP MEMBER HAVING A U-SHAPED CENTRAL PORTION, A PORTION OF SAID SPRING CLIP MEMBER BEING POSITIONED IN ONE OF SAID CHANNELS THE USHAPED CENTRAL PORTION BEING ELEVATED ABOVE SAID CHANNEL.
Claim 2
Dependent Claim
89 words
A BRUSH HOLDER UNIT COMPRISING A CARBON BRUSH, AN INSULATING BRUSH HOLDER BODY HAVING A RECESS RECEIVING SAID BRUSH, TWO RIBS FORMED ON ONE SIDE FACE OF SAID INSULATING BRUSH HOLDER BODY AND DEFINING A CHANNEL THEREBETWEEN, TWO RIBS FORMED ON ANOTHER SIDE FACE OF SAID INSULATING BRUSH HOLDER BODY, AND DEFINING A CHANNEL THEREBETWEEN, AND A BOWED SPRING CLIP MEMBER HAVING A U-SHAPED CENTRAL PORTION, A PORTION OF SAID SPRING CLIP MEMBER BEING POSITIONED IN ONE OF SAID CHANNELS THE USHAPED CENTRAL PORTION BEING ELEVATED ABOVE SAID CHANNEL.
References Cited (Backward Citations)
US1521605A
Cited
US2822487A
Cited
US2883567A
Cited
US2840732A
Cited
US3025421A
Cited
US3028515A
Cited
US2987639A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |