Patent ID: 7150276
Filing Date: 2006-12-19
Classification: F41B

Abstract:
1. A pneumatic paintball marker, comprising in combination: a housing including an hollow open ended firing chamber having a first open end operatively coupled to a barrel and a second open end closed by a removable back plug; said firing chamber having a paintball-loading hole in a side wall thereof at a location between said back plug and said barrel; a door surmounting said firing chamber and slidingly coupled to said housing for providing access to said paintball-loading hole when the door is pivoted to an open position and for sealing said firing chamber when said door is pivoted to a closed position; a means for camming, said means for camming operatively coupled to said door; a means for controlling door position, including a linear actuator operatively coupled to said means for camming such that said cam means transforms a linear motion of said linear actuator into a sliding motion of said door for sliding said door from the open to closed position and from the closed to open position; a pin valve interposed between a source of compressed gas and a bore leading to said firing chamber and located behind said linear actuator for controlling a gas path between said source of compressed gas and said firing chamber; a selectively openable gas path between said source of compressed gas and said linear actuator of said means for controlling door position, and a trigger operatively coupled to said means for controlling door position, said trigger adapted to open the selectively openable gas path between said source of compressed gas and said linear actuator for moving said linear actuator from a forward to a backward position such that said means for camming transforms linear motion of said linear actuator into sliding motion of said door for sliding said door from the open position such that a paintball is loaded into the firing chamber to a closed position for sealing the firing chamber and then continuing to move said linear actuator backward to a position of impact with said pin valve for opening the gas path between said source of compressed gas and said firing chamber for firing the paintball through and out said barrel in an opposite direction of movement of said linear actuator when said trigger is actuated.