Patent ID: 7314109

Claim:
An electric drive vehicle comprising: a frame; a wheel, having a wheel hub with at least one hub sprocket, said wheel rotatably mounted in said frame; an electric motor, having a rotatable assembly and a fixed assembly, said fixed assembly attached to said frame; a motor sprocket rotationally fixed to said rotatable assembly of said motor, wherein the motor sprocket rotates with a same angular velocity at all times as the rotatable assembly in both a clockwise direction and in a counter clockwise direction during all operation of the electric drive vehicle; a drive chain connecting said motor sprocket and said at least one hub sprocket for transferring rotary motion from said motor sprocket to said at least one hub sprocket; a pedal crank assembly rotatably mounted in said frame; and a uni-directional drive connecting said motor sprocket and said pedal crank assembly for transferring rotary motion from said pedal crank assembly to said motor sprocket, but not from said motor sprocket to said pedal crank assembly, whereby said vehicle can be driven either by said pedal crank assembly through said motor sprocket or by said motor alone without turning said pedal crank assembly, or by both said pedal crank assembly and said motor in unison.