Muzzle brake and a muzzle brake system

Abstract

A muzzle brake for countering the recoil of a gun includes an elongated sheathing extending in an axial direction; a cylindrical bore in the sheathing extending in the axial direction between a proximate end opening for entry of a projectile and a distal end opening for exit of the projectile; at least two sets of at least one gas port, the sets being distributed in said axial direction, each gas port extending radially through the sheathing; and a baffle associated with each set of gas ports, each baffle projecting outwardly from and extending around an outer circumference of the sheathing.

What is claimed is: 
     
         1 . A muzzle brake for countering a recoil of a gun, the muzzle brake comprising:
 an elongated sheathing extending in an axial direction;   a cylindrical bore in said sheathing extending in the axial direction between a proximate end opening for entry of a projectile and a distal end opening for exit of the projectile;   at least two sets of at least one gas port, said sets being distributed in said axial direction, each gas port of each set extending radially through the sheathing; and   a baffle associated with each set of at least one gas port, each baffle projecting outwardly from and extending around an outer circumference of the sheathing.   
     
     
         2 . The muzzle brake of  claim 1 , wherein an opening area of at least one gas port in a first set of the at least two sets is greater than an opening area of at least one gas port of a second set of the at least two sets, wherein the first said set is closer to the proximate end opening than the second set and the second set is closer to the distal end opening than the first set. 
     
     
         3 . The muzzle brake of  claim 1 , wherein the baffles are angled towards the proximate end opening. 
     
     
         4 . The muzzle brake of  claim 1 , wherein one or more of the baffles comprises a bevelled edge, said edge facing the proximate end opening. 
     
     
         5 . The muzzle brake of  claim 1 , wherein an opening area of the at least one gas port of each set decreases by set in a direction towards the distal end. 
     
     
         6 . The muzzle brake of  claim 1 , wherein each set of at least one gas port comprises four gas ports. 
     
     
         7 . The muzzle brake of  claim 6 , wherein the gas ports of each respective set extend radially and perpendicularly with respect to neighbouring gas ports of said set. 
     
     
         8 . The muzzle brake of  claim 1 , wherein the sheathing comprises an exterior thread at the proximate end opening. 
     
     
         9 . A muzzle brake system for countering a recoil of a gun, said system comprising:
 a muzzle brake comprising:
 an elongated sheathing extending in an axial direction; 
 a cylindrical bore in said sheathing extending in the axial direction between a proximate end opening for entry of a projectile and a distal end opening for exit of the projectile; 
 at least two sets of at least one gas port, said sets being distributed in said axial direction, each gas port of each set extending radially through the sheathing; and 
 a baffle associated with each set of at least one gas port, each baffle projecting outwardly from and extending around an outer circumference of the sheathing; and 
   a blast shield with a distal end opening and a proximate end opening, said blast shield comprising a circumferential wall extending between the proximate end opening and the distal end opening and defining an inner cavity for housing the muzzle brake, said circumferential wall being dimensioned to extend around the muzzle brake so that a gap is formed between the circumferential wall and the baffles when the muzzle brake system is assembled, wherein an interior surface of the circumferential wall has a conical shape which is wider towards the distal end opening.   
     
     
         10 . A muzzle brake system for countering a recoil of a gun, said system comprising:
 a muzzle brake comprising:
 an elongated sheathing extending in an axial direction; 
 a cylindrical bore in said sheathing extending in the axial direction between a proximate end opening for entry of a projectile and a distal end opening for exit of the projectile; 
 at least two sets of at least one gas port, said sets being distributed in said axial direction, each gas port of each set extending radially through the sheathing; and 
 a baffle associated with each set of at least one gas port, each baffle projecting outwardly from and extending around an outer circumference of the sheathing; and 
   an adaptor element comprising:
 a casing with a proximate end opening and a distal end opening, 
 a central passage extending between the proximate end opening and the distal end opening, 
 a first interior thread in the central passage at the proximate end opening, said first interior thread being adapted to engage a thread on a barrel of the gun to attach the adaptor element to a muzzle of the gun, 
 a second interior thread in the central passage at the distal end opening, said second interior thread being adapted to attach the muzzle brake to the adaptor element. 
   
     
     
         11 . The muzzle brake system of  claim 10 , wherein the adaptor element further comprises an exterior thread at the distal end opening, said exterior thread being adapted to attach the blast shield to the adaptor element. 
     
     
         12 . The muzzle brake system of  claim 11 , further comprising a cap adapted to cover the exterior thread of the adaptor element.