Patent ID: 7308967
Filing Date: 2007-12-18
Classification: F41A

Abstract:
1. A sound suppressor for a firearm, comprising: a cylindrical housing, a proximal rear end cap whereby said proximal rear end cap has means for attachment to said cylindrical housing and has means for attachment to the muzzle of a firearm, a distal front end cap whereby said distal front end cap has means for attachment to said cylindrical housing and has an aperture for passage of projectiles, at least one baffle element, and at least one spacer element positioned within said housing, and an expansion chamber, said expansion chamber positioned between the proximal rear end cap and said baffle element, whereby said baffle element comprises a baffle with a central bore and including at least two of said following features, said features being: a rearward conical protrusion provided with a plurality of annular steps, said protrusion positioned on the proximal side of the baffle element, said plurality of annular steps positioned concentrically on the rearward conical protrusion, said steps having a flat front surface, and said plurality of annular steps decreasing in diameter with respect to the distance from the proximal side of the baffle element; a rearward conical protrusion provided with a plurality of annular steps, said protrusion positioned on the proximal side of the baffle element, said plurality of annular steps positioned concentrically on the rearward conical protrusion, said plurality of annular steps decreasing in diameter with respect to the distance from the proximal side of the baffle element, whereby said plurality of annular steps on said rearward conical protrusion have a tapered front surface, said tapered surface tapering inward from the outside diameter of each step and rearward towards the outside diameter of the next annular step as positioned with respect to the distance from the proximal side of said baffle; a flange that is positioned on the proximal side of the baffle element, and whereby said flange is has a diameter that is slightly less than the internal diameter of said housing; at least two gas ports that are angled with respect to the axis of the baffles, said gas ports being positioned on the proximal side of the baffle element; gas cross-flow enhancement cuts to the bore of the baffle element, whereby said cuts are positioned eccentrically to the bore axis of the baffle, and whereby said cuts are positioned on the proximal and distal sides of the baffle; a frontal turbulence generation structure that is positioned on the distal side of the baffle element, and whereby said structure comprises an annular inward protruding lip, said lip protruding inwards towards the axis of the suppressor, said lip having a rear surface that decreases in thickness with respect to the center axis of the baffle element, said frontal turbulence generation structure being an integral part of said baffle element; a frontal turbulence generation structure that is positioned on the distal side of the baffle element, and whereby said structure comprises an annular inward protruding lip, said lip protruding inwards towards the axis of the suppressor, said lip having a rear surface that decreases in thickness with respect to the center axis of the baffle element and whereby said frontal turbulence generation structure has at least one geometrical shaped cut, said cut comprising a portion of said annular lip being removed from said annular lip, said frontal turbulence generation structure being an integral part of said baffle element; a frontal turbulence generation structure that is positioned on the distal side of the baffle element, and whereby said structure comprises an annular inward protruding lip, said lip protruding inwards towards the axis of the suppressor, said lip having a rear surface that decreases in thickness with respect to the center axis of the baffle element, whereby said frontal turbulence generation structure of said baffle element is a separate structure, said structure not being an integral part of said baffle element; a frontal turbulence generation structure that is positioned on the distal side of the baffle element, and whereby said structure comprises an annular inward protruding lip, said lip protruding inwards towards the axis of the suppressor, said lip having a rear surface that decreases in thickness with respect to the center axis of the baffle element and whereby said frontal turbulence generation structure has at least one geometrical shaped cut, said cut comprising a portion of said annular lip being removed from said annular lip, whereby said frontal turbulence generation structure of said baffle element is a separate structure, said structure not being an integral part of said baffle element integral part of said baffle element; a frontal turbulence generation structure that is positioned on the distal side of the baffle element, and whereby said structure comprises a short cylindrical spacer element, and an annular inward protruding lip, said lip protruding inwards towards the axis of the suppressor, said lip having a rear surface that decreases in thickness with respect to the center axis of the baffle, said frontal turbulence generation structure being an integral part of said baffle element; a frontal turbulence generation structure that is positioned on the distal side of the baffle element, and whereby said structure comprises a short cylindrical spacer element, and an annular inward protruding lip, said lip protruding inwards towards the axis of the suppressor, said lip having a rear surface that decreases in thickness with respect to the center axis of the baffle and whereby said frontal turbulence generation structure has at least one geometrical shaped cut, said cut comprising a portion of said annular lip being removed from said annular lip, said frontal turbulence generation structure being an integral part of said baffle element; a frontal turbulence generation structure that is positioned on the distal side of the baffle element, and whereby said structure comprises a short cylindrical spacer element, and an annular inward protruding lip, said lip protruding inwards towards the axis of the suppressor, said lip having a rear surface that decreases in thickness with respect to the center axis of the baffle, whereby said frontal turbulence generation structure of said baffle element is a separate structure, said structure not being an integral part of said baffle element; a frontal turbulence generation structure that is positioned on the distal side of the baffle element, and whereby said structure comprises a short cylindrical spacer element, and an annular inward protruding lip, said lip protruding inwards towards the axis of the suppressor, said lip having a rear surface that decreases in thickness with respect to the center axis of the baffle and whereby said frontal turbulence generation structure has at least one geometrical shaped cut, said cut comprising a portion of said annular lip being removed from said annular lip, whereby said frontal turbulence generation structure of said baffle element is a separate structure, said structure not being an integral part of said baffle element; and a turbulence generation structure that is positioned on the distal side of the baffle element, and whereby said structure comprises an annular inward protruding lip, said structure being positioned within said conical section of said baffle, said lip protruding inwards towards the axis of the suppressor, said lip having a rear surface that decreases in thickness with respect to the center axis of the baffle and whereby said turbulence generation structure has at least one geometrical shaped cut, said cut comprising a portion of said annular lip being removed from said annular lip, said structure being an integral part of said baffle element.