Patents Assigned to Johnson Electric Automotive, Inc.
  • Electrical insulation barrier for an electric motor
    Patent number: 6100617
    Abstract: An electric motor assembly includes an electric barrier member positioned between the electric brushes and the bearing. The electric barrier member preferably is a generally annular disk made from a high-temperature dielectric material. The non-conductive barrier member ensures that no electrical communication occurs between the brushes and the bearing despite a close proximity between those components. A method of making a motor assembly to include a non-conductive barrier member designed according to this invention is also disclosed.
    Type: Grant
    Filed: October 1, 1998
    Date of Patent: August 8, 2000
    Assignee: Johnson Electric Automotive, Inc.
    Inventors: Eluid David Carter, Stephen A. Nelson
  • Two-piece pinion gear
    Patent number: 6053060
    Abstract: A two-piece pinion gear includes a metal outer portion and a plastic inner portion. The metal outer portion includes a plurality of gear teeth that are adapted to be engaged by a driving member. The plastic inner portion preferably includes a spiraled groove that is adapted to ride along a spiraled track on a spline shaft associated with an electric starting motor.
    Type: Grant
    Filed: December 12, 1997
    Date of Patent: April 25, 2000
    Assignee: Johnson Electric Automotive, Inc.
    Inventors: Robert L. Tumberlinson, Mauricio Clarke
  • Seal for starter motor drive
    Patent number: 5998895
    Abstract: An improved drive arrangement for a starter motor includes a rubber cushion between a drive plate and a pinion gear. The rubber cushion has seals at inner and outer locations which seal against the drive plate. In this way, the area between the drive plate and the rubber cushion is sealed to prevent contaminants from reaching the area and harming the connection between the drive plate and cushion.
    Type: Grant
    Filed: February 12, 1999
    Date of Patent: December 7, 1999
    Assignee: Johnson Electric Automotive, Inc.
    Inventors: Robert Thrasher, Eduardo Rodriguez