Abstract: A structural device to which is fastened planar displays or frames to support planer displays and the structural device attaches to a vehicle so as to support planar displays or frames to support a planer displays in the plane parallel to or near parallel to the rear or front surfaces of the vehicle. The structural device is comprised of a singular structural member or a plurality of concatenated structural members that are static, exhibit rotational or linear articulation, or exhibit rotational and linear articulation. The structural device attaches to the vehicle by means its structural members and its securing devices. The structural device is placed on the vehicle or parts attached to the vehicle. The securing devices attach to the vehicle and are manipulated to provide forces which in conjunction with the structural members fasten the invention to the vehicle or parts attached to the vehicle.

Abstract: A dual component caulking gun which utilizes a gun body to which there is affixed a dual component cartridge assembly designed to carry dual component cartridges. A ball screw is journaled within the gun body for rotary motion but locked against axial motion and extends in a direction opposite the component cartridge assembly. A pair of ram rods are journaled through the gun body and terminate at the first end in ejector rams and at their opposite end in a transfer bar that is interconnected to the ball screw by means of a ball screw nut.