Patent ID: 7207258
Filing Date: 2007-04-24
Classification: F41A

Abstract:
1. A silencer for a weapon having a combustion chamber and a barrel, the weapon being configured to launch a projectile with combustion gases generated in the combustion chamber, the silencer comprising: a proximal end and a distal end, the proximal end being configured for mounting the silencer to the barrel and including an entry opening, the distal end including a discharge opening configured to allow the projectile to pass therethrough, the entry opening and discharge opening being concentric about a longitudinal axis of the barrel and defining a projectile path therebetween; an inner cylindrical wall disposed about the projectile path; an outer housing disposed concentrically about the inner cylindrical wall; an expansion chamber formed by the inner cylindrical wall, the outer housing, the proximal end and the distal end of the silencer; and at least one vortex chamber disposed between the proximal end and the distal end, the at least one vortex chamber including: wherein the circular peripheral wall is operative to induce a vortex on at least a portion of the combustion gases expelled from the combustion chamber during launch of the projectile, the vortex impeding flow of the combustion gases from the barrel such that the acoustic energy associated with the launch of the projectile is dissipated.