Patent ID: 7849845
Filing Date: 2010-12-14
Classification: F41B,Y10T

Abstract:
1. A pre-charged pneumatic airgun, comprising: a reservoir containing a volume of a compressed fluid, the reservoir having a discharge port disposed therein through which the compressed fluid is selectively discharged from the reservoir; a stopper disposed in the discharge port and movable between a normal position sealing the discharge port and an actuated position allowing passage of the compressed air through the discharge port, the stopper being biased to the normal position by a biasing force; a barrel in fluid communication with the discharge port, wherein when the stopper is disposed in the second position, the compressed fluid discharged through the discharge port is further exhausted through the barrel; and a manually-actuated degassing tool disposed in the air gun for manually overcoming the biasing force to move the stopper from the normal position to the actuated position, and for maintaining the stopper in the actuated position to degas the reservoir.