Patent ID: 7984708
Filing Date: 2011-07-26
Classification: F41B

Abstract:
1. 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 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