Cartridge brush assembly

Details Cartridge brush assembly Cartridge brush assembly

1992-05-08

1993-03-30

Voeltz, Emanuel T.

Electrical generator or motor structure

Dynamoelectric

Rotary

310239, 310247, H02K 1300, H02K 514

Patent

active

051987120

ABSTRACT:
A cartridge brush assembly for fractional horse power commutated motors comprises an elongated tubular holder 17 with opposed sidewalls 31, 33 spaced transverse to a commutator rotational axis 15. A brush 19 is slidably mounted in holder 17 and protrudes through a mouth 35 of holder 17 for engaging a commutator 13. A guide 21 is slidably mounted in holder 17 and comprises a pair of spaced rounded feet 57, 59 slidably and pivotally engaging a chamfered rear face 49 of brush 19. A spring 23 biases a transversely spaced brush sidewall 45 against a transversely spaced holder sidewall 31 and biases brush 19 into engagement with commutator 13. The brush assembly reduces chattering and misalignment of the brush over the life of the brush.

REFERENCES:
patent: 1318713 (1919-10-01), Aalborg
patent: 2474601 (1949-06-01), Thomas
patent: 2615939 (1952-10-01), Mitchell
patent: 2683829 (1950-01-01), Gerber
patent: 2870355 (1959-01-01), Rohrbach
patent: 4266155 (1981-05-01), Niemela
patent: 4876475 (1989-10-01), Smith

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