Rupture disc gas launcher

Details Rupture disc gas launcher Rupture disc gas launcher

1993-07-20

1994-11-22

Brown, David

Mechanical guns and projectors

Fluid pressure

With control for discharge of fluid pressure

124 60, 89 18, F41B 1100

Patent

active

053659139

ABSTRACT:
This invention relates to pneumatic guns that use a source of compressed gas to launch a projectile toward a target. A variety of trigger mechanisms have been used to apply the compressed gas to the base of the projectile in such a gun. In the present invention, replaceable discs of known rupture pressure threshold are mounted in the gas launcher between a compressed gas chamber and the launch tube. The gas launcher launches its projectile by the operator causing the pressure in the launcher to build up to the rupture threshold of the replaceable disc, at which point the disc ruptures and the compressed gas escapes from the compressed gas chamber past the rupture disc to push the projectile out of the launch tube. The rupture disc is a metal disc of known burst pressure. When the disc ruptures, the resulting disc segments are pressed by the outflow of compressed gas against an electrical contact to switch on an arming circuit for a delayed detonator in the explosive payload of the projectile that is launched from the gas launcher.

REFERENCES:
patent: 344936 (1886-07-01), Bartlett
patent: 422347 (1890-02-01), Hyde
patent: 2581758 (1952-11-01), Galliano et al.
patent: 2780213 (1957-02-01), Colling et al.
patent: 3039450 (1962-06-01), Scala
patent: 3422808 (1969-01-01), Stein et al.
patent: 3496925 (1970-02-01), Myers
patent: 3536054 (1970-10-01), Stephens et al.
patent: 3583381 (1971-06-01), Eaton
patent: 4951644 (1990-08-01), Bon

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