Suppressor with Coaxial Expansion Chambers and Tapered Seals

Abstract

A firearm suppressor for dissipating the energy of discharge gases expelled by a discharge of a firearm has at least a first baffle and a second baffle, each baffle having a circumferential outer wall for enclosing an expansion chamber. The outer wall has a circumferential forward tapered surface and a circumferential rearward tapered surface, a taper angle of the forward tapered surface being equal to a taper angle of the rearward tapered surface. The baffles are assembled together in a coaxial baffle stack with the first baffle forward of the second baffle, the forward tapered surface of the second baffle engaging the rearward tapered surface of the first baffle for forming a tapered seal between the outer walls of the baffles, thereby limiting flow of firearm discharge gases from within the baffle stack through the tapered seal.

1 . A firearm suppressor for dissipating the energy of discharge gases expelled by a discharge of a firearm, the suppressor comprising:
 at least a first baffle and a second baffle, each baffle having a circumferential outer wall for enclosing an expansion chamber, the outer wall having a circumferential forward tapered surface and a circumferential rearward tapered surface, a taper angle of the forward tapered surface being equal to a taper angle of the rearward tapered surface;   wherein the baffles are assembled together in a coaxial baffle stack with the first baffle forward of the second baffle, the forward tapered surface of the second baffle mating with the rearward tapered surface of the first baffle for forming a tapered seal between the outer walls of the baffles, thereby limiting flow of firearm discharge gases from within the baffle stack through the tapered seal;   wherein the outer wall of each baffle comprises internal threads and external threads, the internal threads of one of the baffles engaging the external threads of the other of the baffles, forming a threaded engagement for retaining the baffles together in the stack.   
     
     
         2 . The firearm suppressor of  claim 1 , wherein the tapered seal is located between the expansion chambers and the threaded engagement. 
     
     
         3 . The firearm suppressor of  claim 1 , wherein the threaded engagement is located between the expansion chambers and the tapered seal. 
     
     
         4 . The firearm suppressor of  claim 1 , wherein for each baffle the external threads are located on a forward portion and the internal threads are located on a rearward portion. 
     
     
         5 . The firearm suppressor of  claim 1 , wherein for each baffle the internal threads are located on a forward portion and the external threads are located on a rearward portion. 
     
     
         6 . The firearm suppressor of  claim 1 , further comprising:
 a tube configured to be coupled to a firearm near a muzzle of the firearm, the baffles being located within the tube.   
     
     
         7 . The firearm suppressor of  claim 1 , wherein for each baffle the rearward tapered surface forms a rearward end of the outer wall. 
     
     
         8 . The firearm suppressor of  claim 1 , wherein for each baffle the forward tapered surface is rearward of a forward end of the outer wall. 
     
     
         9 . A firearm suppressor for dissipating the energy of discharge gases expelled by a discharge of a firearm, the suppressor comprising:
 at least a first baffle and a second baffle, each baffle having a circumferential outer wall for enclosing an expansion chamber, the outer wall having a circumferential forward tapered surface and a circumferential rearward tapered surface, a taper angle of the forward tapered surface being equal to a taper angle of the rearward tapered surface;   wherein the baffles are assembled together in a coaxial baffle stack with the first baffle forward of the second baffle, the forward tapered surface of the second baffle mating with the rearward tapered surface of the first baffle for forming a tapered seal between the outer walls of the baffles, thereby limiting flow of firearm discharge gases from within the baffle stack through the tapered seal;   wherein the outer wall of each baffle comprises internal threads and external threads, the internal threads of one of the baffles engaging the external threads of the other of the baffles, forming a threaded engagement for retaining the baffles together in the stack; and   wherein the tapered seal is located between the expansion chambers and the threaded engagement.   
     
     
         10 . The firearm suppressor of  claim 9 , wherein for each baffle the external threads are located on a forward portion and the internal threads are located on a rearward portion. 
     
     
         11 . The firearm suppressor of  claim 9 , wherein for each baffle the internal threads are located on a forward portion and the external threads are located on a rearward portion. 
     
     
         12 . The firearm suppressor of  claim 9 , further comprising:
 a tube configured to be coupled to a firearm near a muzzle of the firearm, the baffles being located within the tube.   
     
     
         13 . The firearm suppressor of  claim 9 , wherein for each baffle the rearward tapered surface forms a rearward end of the outer wall. 
     
     
         14 . The firearm suppressor of  claim 9 , wherein for each baffle the forward tapered surface is rearward of a forward end of the outer wall. 
     
     
         15 . A firearm suppressor for dissipating the energy of discharge gases expelled by a discharge of a firearm, the suppressor comprising:
 at least a first baffle and a second baffle, each baffle having a circumferential outer wall for enclosing an expansion chamber, the outer wall having a circumferential forward tapered surface and a circumferential rearward tapered surface, a taper angle of the forward tapered surface being equal to a taper angle of the rearward tapered surface;   wherein the baffles are assembled together in a coaxial baffle stack with the first baffle forward of the second baffle, the forward tapered surface of the second baffle mating with the rearward tapered surface of the first baffle for forming a tapered seal between the outer walls of the baffles, thereby limiting flow of firearm discharge gases from within the baffle stack through the tapered seal;   wherein the outer wall of each baffle comprises internal threads and external threads, the internal threads of one of the baffles engaging the external threads of the other of the baffles, forming a threaded engagement for retaining the baffles together in the stack; and   wherein threaded engagement is located between the expansion chambers and the tapered seal.   
     
     
         16 . The firearm suppressor of  claim 15 , wherein for each baffle the external threads are located on a forward portion and the internal threads are located on a rearward portion. 
     
     
         17 . The firearm suppressor of  claim 15 , wherein for each baffle the internal threads are located on a forward portion and the external threads are located on a rearward portion. 
     
     
         18 . The firearm suppressor of  claim 15 , further comprising:
 a tube configured to be coupled to a firearm near a muzzle of the firearm, the baffles being located within the tube.   
     
     
         19 . The firearm suppressor of  claim 15 , wherein for each baffle the rearward tapered surface forms a rearward end of the outer wall. 
     
     
         20 . The firearm suppressor of  claim 15 , wherein for each baffle the forward tapered surface is rearward of a forward end of the outer wall.