US Patent 9260044 Automated material unloader

The invention is a material unloader having an automatic hydraulic mechanism and frame for removably securing underneath a body of a dump truck. The mechanism has a support platform having two channels and two coupling means. The frame has a platform, a pair of longitudinal flanges coupled together by a stabilizing bracket, a plurality of cross-braces extending therebetween, and an outside surface having a plurality of rollers which are accepted into the channels of the mechanism for automatic actuation. The platform of the frame supports a chain driven conveyor assembly including an endless drive mechanism having a pair of parallel drive chains.