Brush and commutator motor having brush device using the same

Details Brush and commutator motor having brush device using the same Brush and commutator motor having brush device using the same

1992-04-22

1995-02-07

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 44, 310233, 310252, 29597, 29826, H02K 1300

Patent

active

053878329

ABSTRACT:
A binded carbon brush includes a brush main portion formed mainly of carbon, and an electric conductor formed by a material, such as a copper powder, having an electric resistivity lower than that of the brush main portion and extending along a main current direction of the brush. In the cross section of the brush perpendicular to the main current direction, the diameter or the vertical and horizontal sizes of the conductor is so set as to be smaller than both the vertical and horizontal sizes of the brush main portion.

REFERENCES:
patent: 672449 (1901-05-01), Markey
patent: 701369 (1902-06-01), Mills
patent: 2171704 (1939-09-01), Koehler
patent: 4415635 (1983-11-01), Wilsdorf
patent: 4922149 (1990-05-01), Isozumi
"Ability of Electric Brushes, and How to use the Brushes", Ryuichi Takemasa, Toky Denki Daigaku Press, pp. 160-161, Oct. 10, 1961.
Database WPI, Week 8018, Derwent Publications, Ltd., London, Great Britain, AN 80-31372C (18), & DE-A-2,941,448 (Nihon Kogyo), Abstract.

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