Projectile Delivery System With Variable Velocity Control

摘要

A variable velocity pneumatic launcher that includes at least one chamber filled with a projectile. The launcher includes a ballast chamber filled with pressurized air selectively released to propel a projectile from the launcher's barrel. The launcher includes a firing chamber filled with ambient air and a ballast chamber filled with pressurized air. A piston rod extends between the chambers and attached to a firing piston and a ballast piston located inside the firing chamber and ballast chamber, respectively. The rod is connected to an adjustable velocity valve which controls the amount of longitudinal movement of the rod. When the trigger is activated, a portion of the pressurized air from the ballast chamber is delivered to the firing chamber. Because the surface area of the firing piston is greater than the ballast piston's surface area, the force exerted on the firing piston is sufficient to shift/displace the ballast piston.

主权项

1. A pneumatic launcher, comprising:
a. a barrel; b. at least one round chamber filled with a projectile and longitudinally aligned with said barrel; c. a main tube aligned parallel to said barrel, said main tube includes a barrel chamber; d. a ballast piston located inside said barrel chamber and that opens and closes said ballast chamber, said ballast piston configured to close said barrel chamber with said ballast chamber is filled with pressurized air greater than ambient air pressure; e. a valve plate assembly attached to said main tube; f. a piston sleeve attached to said valve plate assembly and aligned on opposite said main tube, said piston sleeve includes a firing chamber and a firing piston located inside said firing chamber; g. a velocity housing attached to said piston sleeve, said velocity housing includes a valve cavity; h. a hand grip attached to said velocity housing, said hand grip includes a trigger and pippet valve; i. a piston rod extending longitudinally from said valve cavity, through said firing chamber in said piston sleeve, through said valve plate assembly and into said ballast cavity, said piston rod affixed to said firing piston and affixed to said ballast piston so that when said piston rod moves longitudinally forward, said firing piston and said ballast pistons move simultaneous and allow pressurized air to flow outward from said firing chamber and said ballast chamber; j. an adjustable velocity valve located inside said velocity housing and coupled to said piston rod that selectively controls the longitudinal movement of said piston rod and the movement of said ballast piston and said firing piston, k. at least one air conduit extending between said valve cavity and said ballast chamber; l. a least one air conduit extending between said ballast chamber and said firing chamber, and, m. an external air pressure source attached to said velocity housing.