Apparatus and method for resonance modulation of firearm discharge gases

Abstract

An apparatus and methods for regulating firearm discharge gases are disclosed. The apparatus may include a muzzle booster having a main body and an orifice including an inner surface. A first baffle may be positioned in the orifice, a second baffle may be positioned against the first baffle. The second baffle may be secured to the inner surface. A distal end cap may be secured to the second baffle. The distal end cap may further include a distal bore. One or more expansion modules may be removably secured to the muzzle booster with a quick connect disconnect fitting. The expansion modules may include modular suppressors for various operational requirements.

1 - 9 . (canceled) 
     
     
         10 . A muzzle booster for regulating firearm discharge gases comprising:
 a main body including a proximal end and a distal end, the main body comprising:
 an orifice extending from the proximal end to the distal end, the orifice comprising an inner surface; 
   a first baffle positioned in the orifice, the first baffle including a first central axis and a first cross section through the first central axis, the first baffle comprising
 a first leading end, 
 a first trailing end spaced from the first leading end along the first central axis, 
 a first passage extending from the first leading end to the first trailing end, the first passage being bound by a first interior surface, 
 the first cross section comprising
 a first interior compound curve adjacent to the first leading end, and 
 a first exterior surface extending from the first leading end to the first trailing end, the first exterior surface comprising a first exterior compound curve proximate to the first leading end, the first exterior compound curve being convex with respect to the first central axis, 
 
   a second baffle arranged in the first trailing end, the second baffle comprising a second central axis and a second cross section through the second central axis, the second baffle comprising
 a second leading end, 
 a second trailing end spaced from the second leading end along the second central axis, 
 a second passage extending from the second leading end to the second trailing end, the second passage being bound by a second interior surface, 
 the second cross section comprising a second leading linear segment adjacent to the second leading end, the second leading linear segment being disposed at an acute angle with respect to the second central axis. 
   
     
     
         11 . The muzzle booster of  claim 10 , wherein the first interior compound curve comprises:
 a first leading curve comprising a first leading curve radius, the first leading curve being convex with respect to the first central axis, and   a first trailing curve comprising a first trailing curve radius, the first trailing curve being concave with respect to the central axis.   
     
     
         12 . The muzzle booster of  claim 11 , wherein the first interior compound curve defines a first curve ratio of about 0.190 to about 0.349, and the first exterior compound curve defines a first exterior curve ratio of about 0.093 to about 0.102. 
     
     
         13 . The muzzle booster of  claim 10 , wherein the inner surface of the orifice comprises a central axis and a cross section through the central axis, the cross section comprising:
 a first segment abutting the proximal end, the first segment comprising a first side wall, the first sidewall bounding a first volume and defining a first inner diameter perpendicular to the central axis,   a second segment proximate the first segment, the second segment comprising a second side wall bounding a second volume and defining a second inner diameter perpendicular to the central axis, the second inner diameter being greater than the first inner diameter,   a third segment proximate the second segment, the third segment comprising a third side wall bounding a third volume and defining a third inner diameter perpendicular to the central axis, the third inner diameter being greater than the second inner diameter.   
     
     
         14 . The muzzle booster of  claim 13 , wherein the third segment further comprises a first transverse surface abutting the third side wall and the second side wall, the first transverse surface forming a first seat for the first baffle. 
     
     
         15 . The muzzle booster of  claim 14 , wherein the inner surface of the orifice further comprises:
 a fourth segment proximate the third segment, the fourth segment comprising a fourth side wall bounding a fourth volume and defining a fourth inner diameter perpendicular to the central axis, the fourth inner diameter being greater than the third inner diameter, the fourth side wall comprising a first screw thread, and   the second baffle further comprises a second exterior surface extending from the second leading end to the second trailing end, the second exterior surface comprising a second screw thread, the second screw thread being configured and dimensioned to mate with the first screw thread for securing the second baffle to the main body.   
     
     
         16 . The muzzle booster of  claim 15 , wherein the muzzle booster further comprises a distal end cap, and the distal end cap comprises a discharge port. 
     
     
         17 . The muzzle booster of  claim 16 , wherein the second sidewall and the first baffle bound a first chamber, the first chamber comprising a first chamber volume, and the second interior surface and the distal end cap bound a second chamber, the second chamber comprising a second chamber volume, the second chamber volume divided by the first chamber volume defining a chamber ratio, the chamber ratio being between 0.850 and 1.150. 
     
     
         18 . The muzzle booster of  claim 16 , wherein the distal end cap further comprises a flash signature reduction device adjacent to the discharge port. 
     
     
         19 . An apparatus for regulating firearm discharge gases comprising:
 the muzzle booster of  claim 10 ; and   an expansion module abutting the main body.   
     
     
         20 . The apparatus of  claim 19 , wherein the expansion module comprises
 a blast chamber comprising a blast chamber volume,   an exit chamber comprising an exit chamber volume, and   a plurality of baffles disposed between the blast chamber and the exit chamber.   
     
     
         21 . The apparatus of  claim 20 , wherein the plurality of baffles are four baffles. 
     
     
         22 . The apparatus of  claim 20 , wherein each of the plurality of baffles are a part of a unitary structure. 
     
     
         23 . The apparatus of  claim 20 , wherein at least one of the plurality of baffles comprises a leading end and an interior compound curve adjacent to the leading end, the interior compound curve defining a curve ratio of about 0.232 to about 0.248. 
     
     
         24 . The apparatus of  claim 20 , wherein at least one of the plurality of baffles comprises a leading end and an interior compound curve adjacent to the leading end, the interior compound curve defining a curve ratio of about 0.448 to about 0.466. 
     
     
         25 . The apparatus of  claim 20 , wherein at least one of the plurality of baffles comprises a leading end and an interior compound curve adjacent to the leading end, the interior compound curve defining a curve ratio of about 0.614 to about 0.624. 
     
     
         26 . The apparatus of  claim 20 , wherein the exit chamber volume divided by the blast chamber volume defines a second chamber ratio, the second chamber ratio being between 0.850 and 1.150 
     
     
         27 . The apparatus of  claim 20 , further comprising a coaxial blast chamber disposed around the plurality of baffles, the coaxial blast chamber being in fluid communication with the blast chamber.