US Patent 8991851 Towing system

A towing system for efficiently and safely pulling heavy vehicles. The towing system generally includes a first member adapted to be attached to a drawbar of a towing vehicle, a second member pivotally attached to the first member, a cam unit mechanically connected to the first member and second member providing a centering force to the second member, and a third member pivotally attached to the second member wherein the third member is adapted to removably attach to a vehicle to be towed. The third member is adapted to be pivoted upwardly into a raised storage position or downwardly to a lowered position by a pivot actuator connected between the third member and the second member.