Patent ID: 7562883
Filing Date: 2009-07-21
Classification: A61B,A61G,A61H

Abstract:
1. A personal support platform for traversing an underlying surface, comprising: a frame; a plurality of caster wheels interconnected to said frame; a drag wheel interconnected to the frame and moveable between a raised position and a lowered position; a braking assembly interconnected to the frame having an engaged and a disengaged position, wherein in the engaged position the braking assembly causes a frictional force to be applied to the underlying surface sufficient to prevent translational movement of the personal support platform, the frictional force not being applied through the drag wheel; a transmission system interconnected to said frame, said transmission system providing a number of user selectable modes, said user selectable modes comprising at least a stop mode, a walk mode and a roll mode, wherein in the stop mode the drag wheel is lowered and the braking assembly is engaged, in the walk mode the drag wheel is lowered and the braking assembly is disengaged, and in roll mode the drag wheel is raised and the braking assembly is disengaged; and a single selector mechanism for selectively choosing one of said stop, walk and roll modes by a user from a standing position adjacent said frame.