Accession Number : ADD017337

Title :   Pressure Balanced Fast Opening Firing System for a Stored Energy Launching System.

Descriptive Note : Patent, Filed 30 Sep 93, patented 6 Dec 94,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Bitsakis, Nicholas ; Berlam, Gary R

Report Date : 06 Dec 1994

Pagination or Media Count : 5

Abstract : A system for launching a projectile includes a source of stored energy such as a pressurized fluid, a projectile within a launch barrel which communicate with the source of pressurized fluid, a fluid flow patl betweeii the two having at least one flow port, an object for blocking the at least one flow port and a valve for moving the blocking object and thereby allowing the pressurized fluid to enter the launch barrel and initiate launch of the projectile. The valve for moving the blocking object communicates directly with the energy storage device of the launch system and is used to move the blocking means by introducing fluid against a rear face thereof. In one embodiment of the present invention, the blocking object may be a disposable poppet. In an alternative embodiment, it may be the projectile itself. The launch system of the present invention has the advantages of being relatively simple, quiet and highly reliable. It also has the advantage of very rapidly opening a flow port substantially equal in size to the projectile to be launched.

Descriptors :   *GUN BARRELS, *GUN LAUNCHERS, *PATENTS, SOURCES, PROJECTILES, LAUNCHING, FLUIDS, FLOW, BLOCKING, PRESSURIZATION, ENERGY STORAGE, FLUID FLOW

Subject Categories : Ammunition and Explosives
      Guns

Distribution Statement : APPROVED FOR PUBLIC RELEASE