Mechanical guns and projectors – Fluid pressure – With control for discharge of fluid pressure
Patent
1986-12-22
1989-04-11
Johnson, Richard J.
Mechanical guns and projectors
Fluid pressure
With control for discharge of fluid pressure
124 48, 124 66, 124 75, F41B 1102, F41B 1100, F41C 2500
Patent
active
048196096
ABSTRACT:
A compressed gas powered marking gun for firing marking pellets and similar projectiles each of which is generally spherical and sufficiently fragile so as to break upon impact with a target is disclosed including a compressed gas source, a projectile supply magazine containing a plurality of projectiles, and means for sequentially aligning projectiles from the supply magazine with the gun barrel through which projectiles may be sequentially discharged. The firing mechanism includes a user actuable trigger for selectively supplying compressed gas from the source to expel a projectile through the barrel, and a selector mechanism movable between a first position where the trigger actuated supplying of gas is disabled, a second position where one actuation of the trigger supplies gas to expel a single projectile, and a third position where compressed gas is repeatedly periodically supplied. The gun includes an improved mechanism for releasing gas to propel a projectile along a gun barrel and from the gun comprising a shuttle valve movable between predetermined limits along a line generally collinear with the gun barrel, a spring biased striker for selectively impacting one shuttle valve end, a user actuable trigger mechanism for releasing the striker to move under the spring bias and impact the shuttle valve one end, a first valve near the shuttle valve one end opened by striker impact to release gas and a second valve near the shuttle valve end opposite said one end.
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Brown Michael
Johnson Richard J.
Rickert Roger M.
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