Patent ID: 7594503

Claim:
A pneumatic paintball marker configured to fire a paintball, said pneumatic paintball marker comprising: a body member in the shape of a gun and having a longitudinal bore; a trigger connected to said body member and configured to move between a firing position and a non-firing position; a barrel extending from said body member and in flow communication with said longitudinal bore; a bolt assembly housed in said bore and having a cap and a bolt, said bolt being configured to translate longitudinally within said cap, wherein said cap is a three-part structure comprising a cylinder oriented towards said barrel, a rear cap positioned opposite to said barrel, and a top hat included between said cylinder and said rear cap, and wherein said rear cap is accessible from the outer surface of said body by being positioned in an opening in said body opposite to said barrel; a sail extending radially from said bolt and being configured to hinder gas flow between said bolt and said cap; and a pneumatic regulation system configured to provide a first pneumatic pressure on said sail to translate said bolt towards said barrel when said trigger is in said firing position, said pneumatic regulation system further configured to provide a second pneumatic pressure against said sail that hinders said bolt from translating towards said barrel when the trigger is in the non-firing position, wherein said pneumatic regulation system is actuated by circulating a compressed gas, and wherein said compressed gas flows to a supply chamber defined by a portion of the bore wall and at least a portion of said rear cap and of said top hat, and wherein said compressed gas is circulated at, a reduced pressure by a low pressure regulator to provide said propelling and restraining pneumatic pressures against said sail, and wherein said paintball is positioned in a breech in said bore, and wherein the gas in said supply chamber is released into said barrel upon translation of said bolt towards said barrel, thereby propelling said paintball, and wherein said pneumatic regulation system comprises a solenoid connected to said trigger and to said low pressure regulator, said solenoid causing, said restraining pneumatic pressure to convert to propelling pneumatic pressure upon, actuation of said trigger by routing said gas at said reduced pressure from a first portion of said bolt assembly to a second portion of said bolt assembly, wherein said gas at said reduced pressure is routed to said second portion of said bolt assembly by causing said gas to be routed from a first conduit providing a direct connection between said solenoid and said first portion of said bolt assembly to a second conduit providing a direct connection between said solenoid and said second portion of said bolt assembly.