Abstract: A caster suspension system for a multi-axle transport vehicle for moving heavy loads includes two fluid activated cylinders and two spaced apart arms for each wheel and axle set which allow the transport vehicle to be raised and lowered with respect to the roadway. The suspension system mechanically stabilizes the axles with respect to the transport vehicle thereby reducing axle yaw and allowing higher transport speeds. As the transport vehicle moves, the suspension system casters into alignment with the direction of travel.

Abstract: A multi-axle transport vehicle for hauling heavy loads including a plurality of modules in mechanical communication mounted on axles and wheels and being driven by a first prime mover and a draw bar, the modules including forward, center and rear modules, an automatic steering unit cooperating with the draw bar and having a hydraulic control unit and a plurality of push-pull pistons and steering rods for controlling axle and wheel position, a central spine formed on the forward module and carrying a forward bearing for providing structural support for a transported load mounted on the center module, a suspension system including first and second arms attached to an axle linkage member and cooperating with first and second fluid activated cylinders attached to the modules for dynamically suspending the transported load, and a bearing positioned on the rear module for providing structural support to the transported load.

Abstract: A modular transport vehicle includes a plurality of dollies which are removably connected to a central spine. Because the components of the present invention may be disconnected, the transport vehicle may be readily disassembled and moved from location to location using conventional transportation means. The modularity also allows the width of the transport vehicle to be adjusted using different widths of connectors to accommodate road conditions and/or governmental regulations.