Abstract: A paintball gun that operates entirely under a single stage of gas pressure and uses fewer parts thereby resulting in lower manufacturing costs and higher reliability without any significant impact on its firing sequence rate. The paintball gun employs a mechanical spring to reset the ram. Resetting of the ram by a mechanical spring being returned to a less compressed condition, does not appear to have any significant effect on firing and reloading sequence rates as compared to resetting the ram with pneumatic operation. Employing a mechanical spring to reset the ram, reduces the complexity of the pneumatic valve. The less complex pneumatic valve can readily operate under higher gas pressure such as up to 300 psig thereby making it unnecessary to have a second stage of pressure.

Abstract: Blow-fill-seal processing is employed to fabricate fully formed and filled paintballs. A blow-fill-seal machine, known in the field of medical container and syringe manufacture, is adapted for making paintballs by employing spherical surface main molds which form blow-molded shells and permit the shells to be filled with suitable paintball dye and then sealing molds are used to seal the filled paintball shell thereby resulting in a fully formed paintball having an accurate spherical surface.

Abstract: An improved electronically controlled pneumatically operated paintball gun having more efficient air usage by means of a pneumatic piston valve with a directional tube vent. This pneumatic piston valve works on direct air pressure to open and close very quickly. The pneumatic piston valve has one moving part called the “piston valve”. The piston valve works as a double acting cylinder. At one end of the piston valve is a seal that presses up against a valve seat. When low pressure air is applied to the opposite side of the piston valve assembly, the force created from air pressure forces the piston seal against the valve seat, closing a high-pressure chamber. When low pressure air is allowed to be released, force created by air pressure shifts the valve and forces the seal away from the valve seat.