Walbro Corporation

Marc B Ruprecht

Richard L Kobman

Arthur J Birchenough

J D Tuckey, Deceased

Michael L Mercer

Dirk G Westendorf

James A George

A flat commutator for an electric motor of a vehicle fuel pump. The commutator, is made with a one-piece carbon ring having a flat outer face, a one-piece conductor ring underlying the outer face of and embedded in the carbon ring, and a housing of a plastic insulating material molded on the rear face and the inner and outer edges of the carbon ring and adapted to mount the commutator on a motor armature. A plurality of circumferentially spaced apart grooves extend radially and axially completely through both the carbon ring and the conductor ring to provide a plurality of individual sintered carbon segments each with a separate conductor for electrically connecting the segments with armature coils.

Method of making a flat commutator

Electric motor commutator

Growing community of inventors

North Olmsted, OH, United States of America

Marc B Ruprecht