Patent ID: 7635037

Claim:
In combination, a motorized towing device and a wheeled cart, said motorized towing device comprising: a chassis housing a pair of reversible variable speed direct current electric motors, each of said motors connected to an axle upon which is mounted a wheel; a battery to provide power to said motors; a microprocessor control; a steering column connected to said chassis; and, one or more switches generating signals in response to force applied to said steering column by an operator, said signals received by said microprocessor control and causing said microprocessor control to operate said motors to rotate said wheels in a manner so as to move said chassis at a speed and in the general direction of the movement of said operator; and, a quick release attachment mechanism to releasably secure said wheeled cart to said chassis, said quick release attachment mechanism comprising one or more yokes connected to said wheeled cart and releasably receivable about said chassis, said one or more yokes including a stationary portion, a rotating portion, and a clamp, wherein the securement of said one or more yokes about said chassis through activation of said clamp releasably secures said wheeled cart to said chassis permitting said chassis to tow or move said cart across a surface while permitting rotational movement of said one or more yokes relative to said chassis.