Patent US3704360A successfully refreshed from Google Patents.
Patent US3177388A successfully refreshed from Google Patents.
US3177388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush holder assembly for electric motor
Assignee: Singer Co
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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 21:47
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)
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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) | 1968-04-05 | 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 |