×

Planar carbon segment commutator

  • US 5,386,167 A
  • Filed: 08/13/1993
  • Issued: 01/31/1995
  • Est. Priority Date: 08/14/1992
  • Status: Expired due to Term
First Claim
Patent Images

1. A planar carbon segment commutator for an electric motor, the commutator comprising:

  • a base member of insulating material having a rotational axis, a front surface extending, at least in part, transversely to the rotational axis, and a plurality of apertures formed therein and extending rearwardly from the front surface, each aperture provided with a first part and, rearwardly of the first part, with a second part having an abutment surface laterally offset from the first part;

    a plurality of circumferentially spaced contact members mounted on the front surface; and

    a plurality of circumferentially spaced overmolded carbon segments, respectively formed on the contact members, each carbon segment being aligned with a respective aperture and having an integral anchor means which extends rearwardly into its respective aperture and having locking means disposed within the second part of its respective aperture and engaging an abutment surface of its respective aperture to thereby resist axial withdrawal of the anchor means from its respective aperture.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×