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