Patent ID: 6857423
Filing Date: 2005-02-22
Classification: F41B

Abstract:
1. A paintball marker comprising: a body, said body defining a chamber, said chamber having a paintball inlet; a bolt, wherein said bolt is slideable within said chamber between an open position wherein said bolt permits entry of a paintball through said paintball inlet into said chamber and a closed position wherein said bolt prevents entry of a paintball through said paintball inlet into said chamber; and an actuator, wherein said actuator is operatively connected to said bolt, and wherein said actuator is adapted to apply an opening force to move said bolt towards said open position and a closing force to move said bolt towards said closed position, and wherein said opening force is different from said closing force, wherein said actuator includes a pneumatic cylinder, said pneumatic cylinder includes a cylinder housing, said cylinder housing includes a first cylinder port and a second cylinder port, and wherein said pneumatic cylinder further includes a piston, and said piston is slideable within said cylinder housing between said first and second cylinder ports, and wherein said actuator includes a control valve for controlling gas flow to said first and second cylinder ports, and wherein said control valve is adapted to send gas at a first pressure to said first cylinder port to move said piston in a first direction and said control valve is adapted to send gas at a second pressure to said second cylinder port to move said piston in a second direction.