Exhaust

Patents tagged Exhaust

Sep 1, 2026

US12723832 - Reverse thruster muzzle brake for firearms

The present disclosure presents a muzzle break for a firearm having two portions, each comprising corresponding curved baffles, a semicircular channel running the length of the brake, circular inserts, and clamping screw receptacles. Inserts for the bore hole where the gas pressure is highest are inserted into the portions before assembly, and each half of the brake comprises a machined clearance, such that when the brake halves are assembled there is a split machined clearance over the firearm barrel outside diameter. The two halves are fastened together, with alignment pin inserts inserted into machined slots before assembly, and the inner portion of the interior channel is threaded to mate with the threading on a firearm barrel. The muzzle brake is mounted to the firearm barrel by threading the inner portion of the interior channel of the brake onto the barrel to the point of the split machined clearance. Two clamping screws are used to clamp down the barrel end of the brake inner diameter onto the barrel outer diameter to secure the brake to the barrel.

Mar 10, 2026

US12571608 - Handguard exhaust structure of firearm

A handguard exhaust structure of a firearm includes: a barrel, a piston mechanism parallelly arranged with the barrel in a length direction and a positioning end, a sleeve extended from the positioning end, and a piston member actuating within the sleeve, two exhaust holes are respectively disposed at two sides of the sleeve and arranged to be adjacent to the positioning end; and a handguard allowing the barrel and the piston mechanism to be disposed therein, two divergent stoppers are respectively disposed on the handguard at locations corresponding to the two exhaust holes, each of the divergent stoppers is formed along a length direction of the handguard, a lower diverter hole and an upper diverter hole penetrating the handguard are disposed at two sides of each of the divergent stoppers. Accordingly, effects of lowering the temperature and prevent hands from being burnt are achieved.