Accession Number : ADD013165
Title : Gas Actuated Gun System for Launching a Projectile.
Descriptive Note : Patent, Filed 10 Sep 85, patented 24 Feb 87,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Soper,William G
Report Date : 24 Feb 1987
Pagination or Media Count : 9
Abstract : This patent discusses improved and repetitively operable gaseous-propellant gun system for launching one or more projectiles to strike a target, especially a relatively high-speed target at close range. The system is generally made up of a housing having a chamber therein with enlarged and reduced chamber portions. A double-acting piston includes enlarged and reduced tandem pistons for advancement in opposite directions within the chamber. A gaseous source means controls the admittance or release of a lightweight gaseous medium to the reduced chamber portion. A projectile support and handling arrangement functions to securely position a projectile in the barrel bore. A forced air inlet and exhaust subassembly not only admits a first volume of air to be compressed between the enlarged piston and the housing but also admits a second volume of air between the enlarged and reduced pistons so as to biasingly urge the double-acting piston towards the enlarged chamber end of the housing.
Descriptors : *PATENTS, *PROJECTILES, *LAUNCHERS, GASEOUS ROCKET PROPELLANTS
Subject Categories : Ammunition and Explosives
Distribution Statement : APPROVED FOR PUBLIC RELEASE