Patent ID: 9038771
Filing Date: 2015-05-26
Classification: F41A

Abstract:
1. A firearm silencer for suppressing sounds generated by the discharge of a firearm, the discharge generating propellant gases, the firearm silencer comprising: an outer tube, the outer tube being generally hollow and generally cylindrical, with relieved edges at both ends of the internal diameter to ease assembly; a plurality of seal disposed between the outer tube and a monolithic baffle stack within the length of the outer tube, the seals being generally elastomeric in composition and generally toroidal in shape; a plurality of retention seals being disposed upon the monolithic baffle stack such that the outer tube is positioned between the retention seals, the seals being generally elastomeric in composition and generally toroidal in shape; a monolithic baffle stack inserted within the outer tube and disposed such that the monolithic baffle stack projects beyond both ends of the outer tube including: a first end including a first hole, a second end including a second hole, the second end located opposite the first end of the monolithic baffle stack, a plurality of chambers in fluid communication with each other via a plurality of holes and an annular void, the annular void being enclosed by the outer tube; a plurality of recesses in fluid communication with the plurality of chambers via a plurality of through holes and an annular void, the through holes and annular void being enclosed by the outer tube, wherein the recesses are cavities with respect to the outer tube, wherein the one or more of the plurality of recesses has a first depth at a first circumferential location on the monolithic baffle stack and a second depth at a second circumferential location on the monolithic baffle stack, the first depth being greater than the second depth, wherein the plurality of recesses are not annular recesses; a plurality of protrusions extending from the chamber walls radially inward relative to a longitudinal axis extending from the first end of the monolithic baffle stack to the second end of the monolithic baffle stack, within the chambers, and having a terminating surface land profile cylindrical between adjacent chambers, and said terminating surface land being co-radial to hole in fluid communication between chambers, so as to equal a continuous cylindrical bore dimension of the holes and lands; and a path extending from the first hole adjacent the first end of the monolithic baffle stack through the first hole adjacent the second end of the monolithic baffle stack, wherein the plurality of chambers, the plurality of recesses, the annular void, the through holes, the protrusions, the terminating surface lands, and the path are configured to allow propellant gases to travel there through.