Method of treating a carbon current collection brush blank and brush resulting therefrom
AssigneeGeneral Electric Company
InventorsRobert W. Stevens, Mark Markovitz
Life of this patent
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Abstract
A carbon current collection brush having improved wear characteristics and exhibiting a relatively low coefficient of friction at its sliding contact surface (e.g., with a commutator or slip ring) is made by impregnating a brush blank with a solution containing an organometallic compound and an organic resin. The thereby impregnated brush blank is then cured to remove volatiles and retain approximately one to nine percent, by weight, of the organometallic compound and the organic resin in the brush blank.
Claims43
A method of treating a carbon current collection brush blank comprising the steps:
- (a) contacting said brush blank with a solution containing an organometallic compound and an organic resin to thereby impregnate said brush blank with said solution.
- (b) curing the impregnated brush blank to remove volatiles and retain approximately one to nine percent by weight of organometallic compound and organic resin in said brush blank.
A method of treating a carbon current collection brush blank comprising the steps:
- (a) contacting said brush blank with a solution containing an organometallic compound and an organic resin to thereby impregnate said brush blank with said solution.
- (b) curing the impregnated brush blank to remove volatiles and retain approximately one to nine percent by weight of organometallic compound and organic resin in said brush blank.
A current collection brush for use with dynamoelectric machines comprising a carbon brush blank impregnated with the combination of an organometallic compound and an organic resin wherein the impregnating materials constitute approximately one to nine percent of the total weight of the brush.
Dependencies are inferred from the claim text.