Patents Assigned to Walker Technical Co., Inc.
  • Expression shoe
    Patent number: 7045701
    Abstract: An expression shoe includes a pedal, a base, and a bearing arrangement rotatably connecting the pedal to the base. A sensor arrangement produces a senor signal corresponding to a rotational position of the pedal with respect to the base. The sensor includes a hall-effect sensor mounted to one of the pedal and the base and a magnetic field producing device mounted to the other of the pedal and the base for producing a linear output signal in response to movement of the pedal relative to the base.
    Type: Grant
    Filed: September 19, 2003
    Date of Patent: May 16, 2006
    Assignee: Walker Technical Co., Inc.
    Inventors: Robert A. Walker, Kevin H. Light, Jesse F. Dressler, Scott J. Johnson
  • Expression shoe support bracket
    Patent number: D519543
    Type: Grant
    Filed: October 3, 2003
    Date of Patent: April 25, 2006
    Assignee: Walker Technical Co., Inc.
    Inventors: Robert A. Walker, Kevin H. Light, Scott J. Johnson