Accession Number : ADD015800

Title :   Self-Adjusting Obturator for Projectile Launching.

Descriptive Note : Patent application, filed 16 Feb 93,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Jehle, Robert E

Report Date : 16 Feb 1993

Pagination or Media Count : 10

Abstract : Propellant pressure forces generated within the bore of a gun barrel are applied to a projectile through a self-adjusting obturator to prevent projectile blow by of propellant explosion products. The propellant forces are transmitted through a body of shock-absorbing fluid in the obturator protectively isolated from surfaces of the barrel and projectile by a non-porous, flexible enclosure wall deformed into sliding contact with the barrel bore during projectile launch for preventing propellant pressure loss.

Descriptors :   *GUN BARRELS, *GUN PROPELLANTS, *PATENT APPLICATIONS, GUN LAUNCHERS, DEFORMATION, PROJECTILES, PRESSURE, SLIDING CONTACTS, INTERIOR BALLISTICS

Subject Categories : Guns
      Ammunition and Explosives

Distribution Statement : APPROVED FOR PUBLIC RELEASE