Patent ID: 8844422
Filing Date: 2014-09-30
Classification: F41A

Abstract:
1. An apparatus for suppressing the blast and flash produced as a projectile is expelled by gases from a firearm, the apparatus comprising: a body, said body having a proximal end adjacent to the firearm and an opposite, distal end, said body having a wall with an inner surface that defines a central chamber and an outer surface that defines an inner boundary of an enclosed gas expansion chamber, the wall also defines a plurality of gas-transfer ports for fluidly connecting the central chamber with the gas expansion chamber; a baffle, said baffle being disposed within the central chamber of said body and proximate a gas-transfer port, said baffle having a diffuser-shaped surface for diverting the gases from the central chamber to the gas-transfer port and an airfoil, the airfoil extending from the diffuser-shaped surface by a strut for further diverting the gases from the central chamber toward the gas-transfer port; a can, said can being disposed around and spaced apart from said body wall, said can having a wall with an outer surface that is exposed to the ambient atmosphere, and an inner surface that defines an outer boundary of the gas expansion chamber such that the outer surface of said body wall and the inner surface of said can wall cooperate to define the enclosed gas expansion chamber; a rib, said rib extending between said body wall outer surface and said can wall inner surface, the rib for further defining the gas expansion chamber; and wherein the gases are directed between the central chamber and the expansion chamber via a gas-transfer port as the projectile moves from the proximal end to the distal end.