Firearm Sound Suppressor

Abstract

A suppressor for a firearm includes a housing, a cylindrical construct, and a structure. The cylindrical construct is disposed within the housing and surrounds a central pathway along a central axis of the suppressor. The cylindrical construct defines a plurality of apertures. The structure is disposed within the housing and surrounds the cylindrical construct. The structure extends along the central axis and includes a plurality of walls. The plurality of walls define a first fluid passage and a second fluid passage in fluid communication with the first fluid passage. At least one of the plurality of apertures is in fluid communication with the central pathway, the first fluid passage, and the second fluid passage.

What is claimed is: 
     
         1 . A suppressor for a firearm, the suppressor comprising:
 a housing;   a cylindrical construct disposed within the housing and surrounding a central pathway along a central axis of the suppressor, wherein the cylindrical construct defines a plurality of apertures; and   a structure disposed within the housing and surrounding the cylindrical construct, the structure extending along the central axis and including a plurality of walls, wherein:
 the plurality of walls define a first fluid passage and a second fluid passage in fluid communication with the first fluid passage, and 
 at least one of the plurality of apertures is in fluid communication with the central pathway, the first fluid passage, and the second fluid passage. 
   
     
     
         2 . The suppressor of  claim 1 , wherein the plurality of walls extend from the cylindrical construct. 
     
     
         3 . The suppressor of  claim 1 , wherein the plurality of walls extend radially and axially relative to the central axis. 
     
     
         4 . The suppressor of  claim 1 , wherein a first wall of the plurality of walls defines an angle greater than zero degrees and less than ninety degrees relative to the central axis. 
     
     
         5 . The suppressor of  claim 4 , wherein a second wall of the plurality of walls defines an angle greater than zero degrees and less than ninety degrees relative to the central axis. 
     
     
         6 . The suppressor of  claim 1 , wherein the structure is formed at least in part from a metal material. 
     
     
         7 . The suppressor of  claim 1 , wherein the cylindrical construct is concentrically disposed within the housing. 
     
     
         8 . A suppressor for a firearm, the suppressor comprising:
 a housing defining a first central passage; and   a shell assembly concentrically disposed within the first central passage and defining a second central passage, the shell assembly including an inner member and a plurality of fins extending from the inner member, the inner member defining one or more apertures, the plurality of fins defining one or more chambers in fluid communication with the one or more apertures and the second central passage.   
     
     
         9 . The suppressor of  claim 8 , wherein the plurality of fins extend radially and axially within the central passage. 
     
     
         10 . The suppressor of  claim 8 , wherein a first fin of the plurality of fins defines an angle greater than zero degrees and less than ninety degrees relative to a central axis of the central passage. 
     
     
         11 . The suppressor of  claim 10 , wherein a second fin of the plurality of fins defines an angle greater than zero degrees and less than ninety degrees relative to the central axis. 
     
     
         12 . The suppressor of  claim 8 , wherein the shell assembly is formed at least in part from a metal material. 
     
     
         13 . The suppressor of  claim 8 , wherein the shell assembly is concentrically disposed within the housing. 
     
     
         14 . A suppressor for a firearm, the suppressor comprising:
 an intermediate shell assembly including:
 an outer shell defining a first central passage; 
 an inner shell concentrically disposed within the outer shell and defining a second central passage; and 
 a shell assembly including a plurality of apertures, disposed between the outer shell and the inner shell and configured to direct sound waves through the plurality of apertures, each aperture of the plurality of apertures fluidly connecting the first central passage and the second central passage. 
   
     
     
         15 . The suppressor of  claim 14 , wherein the shell assembly includes a plurality of fins extending from the inner shell. 
     
     
         16 . The suppressor of  claim 15 , wherein the inner shell and the plurality of fins define at least one chamber within the first central passage. 
     
     
         17 . The suppressor of  claim 15 , wherein the plurality of fins extend radially and axially through the first central passage. 
     
     
         18 . The suppressor of  claim 17 , wherein a first fin of the plurality of fins defines an angle greater than zero degrees and less than ninety degrees relative to a central axis of the inner shell. 
     
     
         19 . The suppressor of  claim 18 , wherein a second fin of the plurality of fins defines an angle greater than zero degrees and less than ninety degrees relative to the central axis. 
     
     
         20 . The suppressor of  claim 14 , wherein the shell assembly is formed at least in part from a metal material.