Patent ID: 6276354
Filing Date: 2001-08-21
Classification: F41B

Abstract:
An improved gas powered gun for firing projectiles using compressed gas comprising:a gun body, said gun body having an input conduit for communication of a supply of compressed gas thereto,a barrel attached to said body, said barrel having an axial passageway therethrough for communication of said compressed gas for said firing of said projectiles, said axial passageway having a breach end and a muzzle end for discharge of projectiles therefrom;a trigger mechanism mounted upon said body, said trigger mechanism capable of selective activation to allow communication of said compressed gas to said breach end of said axial passageway;a gas pressure regulator means having a regulator body, said regulator body having an input cavity at a first end, said input cavity having a means of attachment of a pressurized air supply thereto, said regulator body having an exit chamber, said exit chamber attachable to a device requiring a compressed air supply, said exit chamber communicating through a central conduit with said input cavity in a sealed relationship;said pressure regulator means having a laterally translatable adjustment piston communicating with said central conduit and having a piston biasing means for communicating a calculated bias to said adjustment piston toward a valve pin;said valve pin having a head portion and having an engagement end distal to said head portion;said valve pin laterally translatable through a seat aperture located in said central conduit to an infinite number of positions, from a first position wherein said engagement end is in a biased contact with a face on said adjustment piston, to a second position wherein said engagement end is substantially out of said biased contact with said adjustment piston;a seal circumferentially mounted about said valve pin adjacent to said head portion on one side, and said seat aperture on an opposite side;said seal terminating communication of compressed gas through said seat aperture when gas pressure imparted from said input cavity upon said head portion communicates biased contact to said engagement end sufficient to substantially overcome said calculated bias communicated to said adjustment piston; andsaid seal allowing compressed gas from said exit chamber and any device attached thereto, passively to exit said regulator, through said seat aperture, when said gas pressure in said input cavity is lowered below a predetermined level in said input cavity, thereby allowing gas pressure in said exit chamber and any attached device to vent through said input cavity;whereby said seal terminates to flow of compressed gas to the exit chamber at a determined pressure level when said engagement end of said valve pin contacts and sufficiently translates said adjustment piston away from said valve pin, and said seal vents pressurized gas from said exit chamber, and any attached device when said supply of compressed gas is lowered below a predetermined level or removed from attachment with said inlet chamber.