Patent US3710159A successfully refreshed from Google Patents.
US3710159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric brush and lead holder
Assignee: Rival Manufacturing Co
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Filing: 1971-07-15
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Granted: 1973-01-09
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Expires: 1991-07-15
Abstract
Abstract A combination electric brush and lead holder for electric motors has a spring located therein which urges the associated brush to extend outwardly of the holder in a telescoping fashion and into contact with a motor commutator. The spring is interposed between the inner end of the brush and a disc shaped terminal end of an electrical lead within the holder structure and is both current carrying and resilient.
Inventors
- 👤 M Dupuis
- 👤 J Greer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:45
CPC Classifications
H; H01; H01R; H01R39/00; H01R39/02; H01R39/38; H01R39/40
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
221 words
A device for holding an electric brush and at least one associated lead, said device comprising a holder structure having a cavity therein with at least one end of said holder structure defining an opening therein, an electric brush having two end portions, said brush positioned within said cavity and having a first end portion extending through said opening in said holder structure, a resilient conducting member in contact with the second end portion of said brush and positioned interiorly of said structure within said cavity, an electrical lead having a terminal end with a predetermined shape, said holder structure having another opening defined therein, said last mentioned opening conforming to the shape of said terminal end so that said terminal end may be oriented to pass unrestricted therethrough, said terminal being placed in contact with said resilient conducting member to urge said terminal end to a position orientation interiorly of said holder structure within said cavity that precludes said terminal end from being removed from said holder cavity through said last mentioned opening in said holder structure, and wherein said last mentioned opening in said holder structure lies in at least two planes, said terminal end being insertible through said opening in one plane and movable to the operating position in the other plane to extend therethrough during normal operation.
Claim 2
Independent Claim
221 words
A device for holding an electric brush and at least one associated lead, said device comprising a holder structure having a cavity therein with at least one end of said holder structure defining an opening therein, an electric brush having two end portions, said brush positioned within said cavity and having a first end portion extending through said opening in said holder structure, a resilient conducting member in contact with the second end portion of said brush and positioned interiorly of said structure within said cavity, an electrical lead having a terminal end with a predetermined shape, said holder structure having another opening defined therein, said last mentioned opening conforming to the shape of said terminal end so that said terminal end may be oriented to pass unrestricted therethrough, said terminal being placed in contact with said resilient conducting member to urge said terminal end to a position orientation interiorly of said holder structure within said cavity that precludes said terminal end from being removed from said holder cavity through said last mentioned opening in said holder structure, and wherein said last mentioned opening in said holder structure lies in at least two planes, said terminal end being insertible through said opening in one plane and movable to the operating position in the other plane to extend therethrough during normal operation.
Claim 3
Dependent Claim
45 words
The invention as in claim 1 wherein said lead terminal is disc shaped, said resilient conductive member being operable to urge said disc shaped terminal end to a position that precluded said end from being removed from said holder cavity through said last mentioned opening.
Claim 4
Dependent Claim
23 words
The combination as in claim 1 wherein said last mentioned opening lies in at least two planes which are normal to each other.
Claim 5
Dependent Claim
45 words
The invention as in claim 3 wherein said lead terminal is disc shaped, said resilient conductive member being operable to urge said disc shaped terminal end to a position that precluded said end from being removed from said holder cavity through said last mentioned opening.
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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) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |