Patents Assigned to Hubner Elektromaschinen AG
  • Commutator for an electric machine
    Patent number: 4851728
    Abstract: A commutator for an electric machine with reciprocally insulated metal segments is described. At least one groove is made in the segments in the circumferential direction of the commutator and receives an insert formed from a precious metal or electrographite part. The axial width of the inserts only takes up part of the commutator contact surface. Alternatively two inserts are juxtaposed in each segment.
    Type: Grant
    Filed: August 12, 1988
    Date of Patent: July 25, 1989
    Assignee: Hubner Elektromaschinen AG
    Inventors: Gunter Doege, Peter Jakob, Ing L. Wilhelmy