Mechanical guns and projectors – Fluid pressure – With control for discharge of fluid pressure
Patent
1994-06-23
1996-03-12
Nicholson, Eric K.
Mechanical guns and projectors
Fluid pressure
With control for discharge of fluid pressure
124 71, 124 76, F41B 1106
Patent
active
054977584
ABSTRACT:
A compressed gas powered gun having a spring biased slider reciprocally moveable within the breech of the gun; the slider being released by a trigger from a cocked position to a firing position. The slider includes a hammer provided with a roller having a beveled contact surface for engaging a vertically oriented valve stem to release compressed gas from a gas source into the barrel and breech of the gun for propelling a projectile and for recocking the slider, respectively. A gas control system includes an annular partition seal moveable with respect to the slider to create a partition between breech and barrel and a pair of gas release valves communicating respectively with barrel and breech to control pressure within the barrel and breech, hence controlling projectile velocity and recocking force. The valve stem is vertically oriented and perpendicular to the slider and is slightly offset from the longitudinal axis of the slider and operates to rotate the hammer roller to a new striking position to distribute wear on the hammer about the entire circumference of the roller. The position of the valve, being below the breech, helps to alleviate problems associated with liquid-gas mixtures commonly found in carbon dioxide powered guns.
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Dobbins Jerrold M.
Dobbins Joseph M.
Kim Harry C.
Nicholson Eric K.
Pedersen Barbara S.
Pedersen Ken J.
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