Long-life motor brush holder

Details Long-life motor brush holder Long-life motor brush holder

1987-10-29

1989-01-24

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310239, 310245, 310248, H02K 1300

Patent

active

048003131

ABSTRACT:
A long-life motor brush holder which significantly minimizes contact of the coil portions of a ribbon spring with the holder and consequently reduces friction drag; the arrangement is such that at least two cylindrical surfaces forming part of the brush holder serve as line contact supports for each of the respective coil portions of the ribbon spring so as to produce minimal contact, the spring including a middle portion for residually engaging the brush to urge it against the motor commutator.

REFERENCES:
patent: 2842692 (1958-07-01), Johnson
patent: 3025421 (1962-03-01), Sievert
patent: 3430084 (1969-02-01), Hall
patent: 4389588 (1983-06-01), Rankin

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