Patent ID: 8474361
Filing Date: 2013-07-02
Classification: F41A,Y10T

Abstract:
1. A method of producing a firearm silencer with reduced weight without compromising durability thereof, comprising: identifying at least one firearm criteria for a host firearm with which the silencer is to be used, including a caliber of the host firearm, method of operation of the host firearm, muzzle pressure, and/or a maximum expected temperature of the silencer; selecting an initial tube wall thickness for forming a body of the silencer based on the at least one identified firearm criteria for a host firearm with which the silencer is to be used; forming a tubular body of the silencer comprising a mount for attaching the silencer to a muzzle of the firearm, and at least a first portion defining a blast chamber adapted to be located adjacent the muzzle of the firearm, wherein the first portion comprises a wall thickness that is substantially equivalent to the selected initial wall thickness and which is substantially consistent along a length of the blast chamber; selectively reducing the wall thickness of the tubular body at a location along the tubular body downstream from the first portion based upon a projected change in pressure of gases passing through the tubular body for forming at least a second portion of the tubular body, the second portion comprising an internal chamber separated from the blast chamber by a blast baffle, and having a substantially consistent wall thickness over its internal chamber that is of a reduced thickness from the initial wall thickness of the first portion; wherein the tubular body is formed with a maximum wall thickness along the blast chamber where the pressure of gases entering the tubular body are highest, and has a reduced wall thickness downstream from the blast chamber where the pressure of the gases passing through the tubular body are reduced, enabling a reduction in weight of the silencer; and forming a third portion of the tubular body corresponding in position with a second expansion chamber positioned longitudinally distal to a an internal baffle between the second and third portions of the tubular body and further reducing a wall thickness in the third portion of the tubular body relative to the wall thickness of the second portion of the tubular body.