Silencer with expansion chambers and manufacturing method thereof

Abstract

Firearm silencers and processes for the production thereof in a layered structure as one single-piece body having at least one expansion chamber.

What is claimed is: 
     
         1 . A firearm silencer comprising a main body, which
 is formed and a single-piece body extending along and around a central longitudinal axis, and   defines at least one expansion chamber formed coaxially in relation to the central longitudinal axis.   
     
     
         2 . The silencer according to  claim 1 , wherein the main body of the silencer is formed in layers in the direction of the central longitudinal axis. 
     
     
         3 . The silencer according to  claim 1 , wherein the silencer is producible by one of the following production processes:
 3D printing process;   a stereo-lithography method;   a selective laser sintering process;   a casting process; and   a forming process.   
     
     
         4 . The silencer according to  claim 1 , wherein the main body of the silencer is defined by at least one of the following features:
 an outer wall which limits, toward the outside, the at least one expansion chamber;   a muzzle opening; and   a firing channel that extends through the main body in the direction of the central longitudinal axis.   
     
     
         5 . The silencer according to  claim 1 , wherein the main body of said silencer is defined by at least one of the following features:
 walls extending coaxially in relation to the central longitudinal axis, which walls limit at least the one expansion chamber;   bars at least partly extending perpendicular to the central longitudinal axis;   supporting structures at least partly extending in coplanar manner in relation to the central longitudinal axis; and   a thread for direct or indirect connection with at least one of a barrel of a firearm and an interface for attachment to a barrel of a firearm.   
     
     
         6 . The silencer according to  claim 1 , wherein at least one of the expansion chambers is curved. 
     
     
         7 . A silencer according to  claim 1 , wherein the curvature includes components in at least one of the following directions:
 curvature component in azimuthal direction;   curvature component in radial direction; and   curvature component in axial direction.   
     
     
         8 . A silencer according to  claim 1 , wherein at least one of the expansion chambers is tapered or widened in its cross section. 
     
     
         9 . A silencer according to  claim 1 , wherein at least one of the expansion chambers opens into a sound absorption area. 
     
     
         10 . A silencer according to  claim 1 , wherein at least one of the expansion chambers opens to an outer wall of the main body. 
     
     
         11 . A silencer according to  claim 1 , wherein at least one of the expansion chambers opens into the firing channel or the central longitudinal axis. 
     
     
         12 . A silencer according to  claim 1 , wherein the main body defines at least two expansion chambers, which merge along their extension. 
     
     
         13 . A silencer according  claim 1 , wherein at least one of the expansion chambers branches out along its extension. 
     
     
         14 . A silencer according to  claim 1 , wherein the main body defines at least two expansion chambers which are arranged as coaxial helices along the central longitudinal axis. 
     
     
         15 . A silencer according to  claim 1 , wherein the main body defines at least two expansion chambers, surrounding one another in concentric manner. 
     
     
         16 . A method of producing a firearm silencer, wherein material for a single-piece main body of the firearm silencer is formed along a central longitudinal axis, in such a manner that at least one expansion chamber is coaxially formed with regard to the central longitudinal axis. 
     
     
         17 . The method according to  claim 16 , wherein the formation of the material is carried out layer-wise towards the central longitudinal axis. 
     
     
         18 . The method of  claim 17 , wherein the formation of each layer is carried out perpendicular to the central longitudinal axis two-dimensional grid pattern. 
     
     
         19 . The method of  claim 16 , wherein the formation of material is carried out according to one of the following manufacturing processes:
 a 3D printing process;   the stereo-lithography method;   a selective laser sintering process;   a casting process; and   a forming process.   
     
     
         20 . The method of  claim 16 , wherein the producing is carried out by means of a process employs the use of a single raw material.