Patent ID: 7644788

Claim:
A trailer comprising: a plurality of belts, wherein each of the plurality of belts encompass a front wheel and a rear wheel, wherein the belt has a ground engaging surface and a wheel engaging surface, the wheel engaging surface having lugs thereon for mating with the apertures in the front wheel and the rear wheel such that when the at least one of the front wheel or the rear wheel rotates, the belt is positively driven; at least one suspension system for absorbing load stresses, wherein the at least one suspension system includes a trailer frame pivot on a main frame of the trailer, at least one of the front wheel and the rear wheel rotatably mounted between a first side and a second side of a lower suspension bracket such that when the at least one of the front wheel and the rear wheel encounters an object or depression, the lower suspension bracket moves in a vertical direction and pivots about the track frame pivot thereby allowing the at least one of the front wheel and the rear wheel to move vertically without moving the main frame proportionally vertical; and at least one belt tensioning system for maintaining tension on the plurality of belts, the at least one belt tensioning system includes a track tension cylinder operatively mounted between an axle of the at least one of the front wheel or the rear wheel and the main frame, wherein the track tension cylinder maintains tension on the belt by moving the axle of the at least one of the front wheel or the rear wheel in a horizontal direction.