Abstract: A system for the framing and tensioning of flexible graphic and advertising displays on vehicles such as trucks, trailers and buildings including a low profile framing system comprised of a custom engineered single rail, designed for ease of installation, minimal impact on the surface of the vehicle, and optimal display of the graphics and advertisements. The top and front rails are attached to the vehicle while the rear and bottom rails are independent of the vehicle to effectuate tensioning and replacement of graphics and advertisements. Tensioning is accomplished through the use of a custom tensioning assembly consisting of a latch, an anchor plate, and a latch hook. The custom tensioning assembly is easily adjusted and firmly secured by the locking mechanism. Corner pieces placed over the four corners of the framing system prevent the introduction of air under the flexible display, thereby ensuring the integrity of the design.

Abstract: A portable electric motor driven air gun powered by a power source. The motor is coupled to a lead screw, which drives a piston. The piston compresses air in a chamber producing high-pressure air. When sufficient energy is stored within the air stream by the piston a valve opens which releases the air to act on the projectile. The compressed air is used to push a projectile such as a paintball, an airsoft ball, a “bb”, or a pellet through a barrel. The lead screw is then reversed and the piston is reset for the next shot. The piston is preferably coupled to a feeding mechanism to facilitate positioning of the projectile for firing. The direction speed and operative modes of the gun are preferably controlled with an electric circuit. The power source is preferably rechargeable and allows the air gun to be operated completely independent from either a wall outlet or a compressed air supply.