Patent ID: 7730881

Claim:
An electrically-driven compressed air gun used for firing a projectile, said gun comprising: a power source to power a motor; a sensor to obtain information of said motor; a control circuit for controlling the motor using information from the sensor; a rack pinion coupled to said motor; a rack which engages said rack pinion; a piston coupled to said rack; a cylinder responsive to the piston in which the piston reciprocates to compress air; a mechanical storage element coupled to said rack active in a direction opposite the compression of the air; a projectile chambered by a bolt; a projectile inlet port; a valve formed by movement of said bolt against said projectile inlet port a barrel to receive the projectile; an air passageway between said cylinder and said projectile a compression valve interdisposed between said cylinder and said air passageway wherein said compression valve allows air from the cylinder to exit thru the compression valve to the air passageway pushing said projectile out of said barrel.