ApplicationNo. 10107641 filed on 03/27/2002
US Classes:180/9.32, With auxiliary obstacle surmounting means280/5.22, With endless track180/907, MOTORIZED WHEELCHAIRS180/9.3Wheel or track contacts ground
ExaminersPrimary: Morris, Lesley D.
Assistant: Luby, Matthew
Attorney, Agent or Firm
International ClassB62D 55075
AbstractA wheelchair motorizing apparatus employs an articulated tread drive in combination with front support wheels and rear drive wheels. The tread drive is used to provide traction during the ascent or descent of stairs or the traversing of obstacles, the front support wheels are used to raise and lower the front of the wheelchair, and the rear drive wheels are used to raise and lower the rear of the wheelchair in addition to providing drive traction and steering. A positioning mechanism integral with the tread drive acts to keep the treads in contact with the terrain or stairs.