Patent ID: 7984708

Claim:
A projectile launching apparatus, comprising: a power source; a motor electrically connected to the power source; a control circuit configured to control a power supply to the motor from the power source; a cylinder comprising a piston reciprocally movable within the cylinder to define a gas chamber within the cylinder, the gas chamber capable of accommodating gas therein; a slider crank arrangement driven by the motor, the slider crank arrangement operatively coupled to the piston and configured to cause the piston to reciprocally move within the cylinder for compressing the gas within the gas chamber; a breech assembly comprising a barrel, a projectile inlet port configured on the barrel, the projectile inlet port adapted to receive a projectile into the barrel, and a bolt comprising a front portion and a rear portion, the bolt operatively coupled to the slider crank arrangement and capable of reciprocating between a first position and a second position of the bolt, the bolt configured to be partially received within the barrel such that the front portion of the bolt shutting off the projectile inlet port in the first position and the bolt further configured to enable the projectile to enter the barrel from the projectile inlet port in the second position; and a compression valve arrangement operatively disposed between the cylinder and the barrel, the compression valve arrangement having an open position and a closed position, the open position of the compression valve arrangement configured to release the compressed gas within the gas chamber into the barrel, and the closed position of the compression valve arrangement configured to seal the compressed gas from the gas chamber to the barrel, wherein the gas received within the gas chamber is compressed by the piston in a single stroke of the slider crank arrangement in a manner such that the compressed gas is released from the gas chamber into the barrel, causing the compressed gas to expand in the barrel thereby causing the projectile to be launched from the barrel with the single stroke of the slider crank arrangement, and wherein the compression valve arrangement comprises a valve body having a groove; a valve spool disposed within the groove, the valve spool comprising, a front face portion facing the cylinder, a rear face portion opposite to the front face portion, and a valve spool stem extending outwardly from the front face portion towards the cylinder; a valve return spring disposed within a rear end portion of the groove and operatively coupled to the rear face portion of the valve spool; and a gas passageway extending from the groove to the barrel, the gas passageway configuring a duct for releasing the compressed gas from the gas chamber of the cylinder into the barrel.