US Patent 9828803 Transportable drilling rig system

An apparatus that includes a body structurally arranged to carry a portion of a drilling rig; a first actuator coupled to the body; a first wheeled support coupled to the first actuator, wherein actuation of the first actuator moves the first wheeled support in a vertical direction relative to the body; and a plurality of unit fasteners located on the body, each of the plurality of unit fasteners structurally arranged to engage a rig fastener of a corresponding plurality of rig fasteners located on the drilling rig and to simultaneously couple the body to the drilling rig at multiple points.