US 9,933,221 B2 · Gun barrel cooler

Abstract

A gun barrel cooler for cooling a firearm, such as an automatic, semi-automatic, bolt action or lever action rifle that includes a centrifugal fan blower with an intake to which ambient barrel coolant air is discharged from the blower where the air flows through a conduit that preferably is a flexible hose, through a coupling used to couple the hose to a barrel coolant discharge nozzle, and out the nozzle into the barrel of the gun desired to be cooled. The nozzle is three dimensionally shaped to substantially conform to the firing chamber of the gun to provide better sealing during cooling. A preferred nozzle is an empty cartridge case of substantially the same caliber as the gun to be cooled that is removably attached to the coupler thereby enabling cartridge cases of different calibers to be used to cool guns of different calibers.

Claims19

Dependent claims

A gun barrel cooler for a gun of a caliber that has a breech or ejector port in communication with a bore of an elongate barrel of the gun, the gun barrel cooler comprising:

(a) a source of barrel coolant;
(b) a barrel coolant discharge nozzle received in a chamber of a gun, the barrel coolant discharge nozzle in fluid-flow communication with the source of barrel coolant and having a barrel coolant discharge nozzle outlet in communication with a bore formed in the barrel;
(c) a coolant-fluid transport conduit in fluid-flow communication with the source of barrel coolant and the barrel coolant discharge nozzle;
and
wherein barrel coolant from the source is discharged from the barrel coolant discharge nozzle outlet into the bore in the barrel flowing through the bore and out a muzzle opening at the end of the barrel of the gun being cooled by the barrel cooler;
wherein the barrel coolant discharge nozzle comprises an empty cartridge case of substantially the same caliber as the caliber of the gun whose barrel is to be cooled;
wherein the empty cartridge case has a length with the empty cartridge case having at least two different diameters along the length;
and
wherein the empty cartridge case substantially conforms to a three-dimensional internal shape of the chamber.

6 more elements

Dependencies are inferred from the claim text.

Gun barrel cooler

Life of this patent

Gun barrel cooler

Life of this patent

Abstract

Claims19