Motor commutator covered with electrically conductive spark...

Details Motor commutator covered with electrically conductive spark... Motor commutator covered with electrically conductive spark...

H - Electricity

02

K

310/119

H02K 13/00 (2006.01) H01R 39/56 (2006.01)

Patent

CA 1125829

ABSTRACT OF THE DISCLOSURE Electrically conductive spark quenching grease is coated on the outer surface of arcuate segments of an electric motor to fill gaps between segments so that the grease concurrently and controllably reduces mechanical wear caused by excessive pressure on the motor brushes and spark generation caused by insufficient pressure on the brushes.

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