Method of manufacturing carbon brushes for electrical machines

Details Method of manufacturing carbon brushes for electrical machines Method of manufacturing carbon brushes for electrical machines

1974-01-23

1976-01-20

Padgett, Benjamin R.

Compositions

Electrically conductive or emissive compositions

Elemental carbon containing

252503, 252510, 264104, 264105, H01B 106

Patent

active

039336875

ABSTRACT:
A binder consisting of an aromatic polymeric material in which aryl groups are connected together by single-bond linkages over one or more atoms of carbon, sulfur, oxygen, nitrogen, phosphorus or silicon, preferably polyphenylene-sulfide, is mixed with carbon particles, with or without the addition of copper powder and the mixture is then pressed in a mold, removed from the mold, and sintered at a temperature of 300-500.degree.C, preferably about 350.degree.C for about an hour. Even without the presence of metal powder such brushes have qualities comparable to brushes cut from carbon plate material and conventional copper-containing brushes, and have substantially longer life than the former.

REFERENCES:
patent: 2224724 (1940-12-01), Elsey
patent: 3697450 (1972-10-01), Takenaka et al.
patent: 3716609 (1973-02-01), Trocciola et al.

Affiliated with

Also associated with

Rating

Method of manufacturing carbon brushes for electrical machines does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of manufacturing carbon brushes for electrical machines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing carbon brushes for electrical machines will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1696002