Apparatus for monitoring the wear upon carbon brushes in electri

Details Apparatus for monitoring the wear upon carbon brushes in electri Apparatus for monitoring the wear upon carbon brushes in electri

1987-10-16

1989-05-16

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 68B, 310245, 200 6158R, 388836, H02K 1300

Patent

active

048313025

ABSTRACT:
The wear upon at least one of several carbon brushes in a brush holder is monitored by a lever one arm of which is biased against the rear end face of a selected brush by a spring and another arm of which actuates a microswitch in response to a predetermined amount of wear upon the brush as a result of engagement with a commutator or a slip ring, namely in response to a predetermined angular displacement of the lever from a starting position which is assumed by the lever when its first arm engages a freshly inserted brush.

REFERENCES:
patent: 3398248 (1968-08-01), Klauss
patent: 3575563 (1971-04-01), Russell
patent: 3617661 (1971-11-01), Nome
patent: 4272695 (1981-06-01), Buchwald
patent: 4344009 (1982-08-01), Reynolds
patent: 4348608 (1982-09-01), Michael
patent: 4420705 (1983-12-01), Kimberlin
patent: 4471254 (1984-09-01), Yamada
patent: 4488078 (1984-12-01), Orton

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