Patent ID: 8166861
Filing Date: 2012-05-01
Classification: F41A

Abstract:
1. A shock reduction muzzle brake comprising (a) a tube that defines a path for a projectile, the tube having a longitudinal axis extending from a rear end to a forward end, the tube defining a side wall extending between the rear end and the forward end, (b) multiple forwardly-inclined holes, each hole extending from an inside surface of the side wall to an outside surface along an axis that has an angle of less than 90° relative to the longitudinal axis as measured on the forward side of the hole, the holes extending through the side wall to divert propellant gases away from the path of the projectile, and (c) at least one deflector vane extending from the outside surface of the side wall of the tube adjacent a hole and on a forward side of the hole, the deflector vane having a rearwardly-facing surface extending generally along an axis that has an angle of 90° or less relative to the longitudinal axis of the tube as measured on the forward side of the axis of the rearwardly-facing surface, the rearwardly-facing surface axis intersecting the axis of the hole at an angle that is less than 90° as measured on an inner side toward the outer surface of the side wall so that the rearwardly-facing surface faces outwardly to reflect shock waves exiting the hole away from the hole.