Brush holder with means for limiting travel of brush spring

Details Brush holder with means for limiting travel of brush spring Brush holder with means for limiting travel of brush spring

1974-11-27

1976-05-04

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

H02K 1300

Patent

active

039551130

ABSTRACT:
The invention comprises a motor brush holder assembly including a brush holder member and a brush member which is free for reciprocal longitudinal motion in said brush holder. The assembly includes captured brush spring means for urging longitudinal motion of the brush in one direction. The configuration of the holder is such as to confine the brush spring within the holder. The brush spring confining means may include a planar member between the spring and the brush. The cross section of the interior of the holder may exceed that of the brush; or a portion of either the planar member, or of the brush spring, may project through a slot of the brush holder which does not extend the full length of the holder. By this means there is an assurance that the brush spring cannot project beyond the front of the brush holder and make contact with the commutator.

REFERENCES:
patent: 2194620 (1940-03-01), Sekyra
patent: 2474601 (1949-06-01), Thomas
patent: 2536827 (1951-01-01), Thomas
patent: 2748302 (1956-05-01), Boeckel
patent: 2813208 (1957-11-01), Ritter
patent: 3308321 (1967-03-01), Provost
patent: 3376444 (1968-04-01), Eaton
patent: 3523288 (1970-08-01), Thompson
patent: 3534206 (1970-10-01), Carey
patent: 3710160 (1973-01-01), Voglesonger
patent: 3735172 (1973-05-01), Battaglia

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