Abstract: A driveway truck restraining apparatus including a sealed casing embedded partially in the ground, a ram mounted in the casing for movement between a storage position and an operative position blocking the travel of the ICC bar located on the back of a truck, a pneumatic piston and cylinder assembly mounted on the loading dock and being operatively connected to the ram, and an indoor signal assembly mounted on the inside of the loading dock and an outdoor signal assembly mounted on the outside of the loading dock, the signal assemblies being electrically connected to the piston and cylinder assembly to provide control signals indicating the position of the ram and the absence or presence of a truck at the loading dock.

Abstract: A ground level truck restraint assembly, including a casing adapted to be buried in a driveway in front of a loading dock, a restraining member mounted in the casing for movement between a storage position in the casing to an operative position projecting upwardly from the casing into the path of motion of the ICC bar on a truck and a housing having a slide mounted on the dock a cable having one end connected to the restraining member and the other end connected to the slide in the housing for moving the restraining member to the operative position when a truck is located at the dock.

Abstract: A dockboard comprising a ramp assembly, a frame for supporting the ramp assembly for pivotal movement in a pit formed in a loading dock, a hydraulic piston-cylinder assembly mounted on the bottom of the pit in the loading dock for pivoting the ramp assembly with respect to the supporting means, a lip assembly pivotally mounted on the free end of the ramp assembly, a hydraulic piston-cylinder assembly mounted on the ramp assembly for pivoting the lip assembly to an extended position forming a continuation of said ramp assembly, the ramp assembly including a tread plate and a plurality of hinge plates mounted in a parallel spaced relation on the tread plate, each hinge plate including an ear, and a stop bar mounted on the end of the ramp assembly in the path of travel of the ears for limiting the pivotal movement of the lip assembly.