Patent ID: 8261728
Filing Date: 2012-09-11
Classification: F41B

Abstract:
1. A device for controlling the firing of a paint ball gun comprising: a pressure vessel with compressed gas stored therein; a magazine for storing a plurality of pellets and disposed forward of the pressure vessel; a trigger disposed forward of the magazine; a plate member disposed rearward of the trigger and activated by pulling the trigger; a pivotal member disposed at a bottom of the bolt housing and pivotably secured to the plate member; a bifurcation member for receipt of the pivotal member; a retaining member disposed in the bifurcation member; a rocking member for retaining the pivotal member; a bolt housing comprising a passage member communicating with the pressure vessel, a tube extending forward of the passage member, a hollow enlargement at a rear end of the tube, a switch disposed to allow a topmost one of the pellets to enter the bolt housing or not, an arc member for retaining the pellet, and a safety disposed adjacent to the arc member; a spring biased outer sliding member disposed forward of the bolt housing; a barrel disposed in the outer sliding member and having a rear end in communication with the bolt housing; an inner sliding assembly comprising a spring biased first sleeve, a second sleeve secured to the first sleeve and including a projection on an outer surface, a retaining ring disposed on the first sleeve at a joining portion of the first sleeve and the second sleeve, and an inward extending rim on a rear end of the second sleeve; a plunger disposed in the second sleeve and projecting rearward out of the inward extending rim, the plunger being defined to move in the second sleeve by the inward extending rim; a first piston disposed in the passage member, the first piston being disposed in a first position to block a flow path in the passage member when the trigger is not depressed; a second piston disposed in a joining portion of the second sleeve and the passage member; a first biasing member disposed between the first piston and the second piston; a piston member disposed through the second piston and biased by the first biasing member; and a second biasing member having a forward end anchored on a rear end of the second piston and a rear end adapted to engage with the plunger; wherein in response to turning off the switch and pressing the trigger the inner sliding assembly moves rearward to move the first piston, the second piston, and the plunger rearward until being stopped and disable both the safety and the arc member, and the blocked flow path is open to supply compressed gas from the pressure vessel to the passage member for pushing the topmost pellet through the barrel.