Patents Assigned to Hub Transmission Patent Technologies Inc.
  • Electric wheelchair drive system
    Patent number: 6863141
    Abstract: Motorized wheels in a wheelchair or other light vehicle are each mounted on an axle for limited rotation relative to a secondary connection to the frame of the vehicle which incorporates a sensor providing feedback which controls the motor according to torque sensed through the secondary connection. The motor and associated gearing and control circuitry are housed within a wheel hub of which a drum supporting a wheel rim is supported at its inner surface on multiple bearings spaced around its periphery.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: March 8, 2005
    Assignee: Hub Transmission Patent Technologies Inc.
    Inventor: Ervin Weisz