Patent ID: 7640926

Claim:
A pneumatic assembly for a paintball gun, comprising: a piston slidably mounted in a pneumatic chamber; a first port arranged in a forward end of the pneumatic chamber, wherein said first port is configured to supply compressed gas from a compressed gas source to a first chamber area, and wherein said first chamber area is arranged in communication with a first surface area of the piston such that compressed gas supplied to the first chamber area supplies a force on the first piston surface area that urges the piston in a rearward direction; a second port arranged in the pneumatic chamber, wherein said second port is connected in fluid communication with a solenoid valve to selectively supply compressed gas into a second chamber area, wherein the second chamber area is arranged in communication with a second surface area of the piston such that compressed gas supplied to the second chamber area supplies a force to the second piston surface area that urges the piston in a forward direction; a channel arranged to provide fluid communication between the first chamber area and a compressed gas storage area when the pneumatic assembly is in a first configuration, such that compressed gas supplied to the first chamber area flows into the compressed gas storage area when the pneumatic assembly is in the first configuration to provide the compressed gas for a firing operation of the paintball gun; and a flow restriction member arranged proximal to said channel, wherein said flow restriction member restricts said fluid communication between the first area and the compressed gas storage area when the pneumatic assembly is in a second configuration, such that compressed gas from the first chamber area is at least substantially prevented from entering the compressed gas storage area when the pneumatic assembly is in the second configuration but not when the pneumatic assembly is in the first configuration.