METHOD AND DEVICE FOR CLEANING OF GUN BARREL Russian patent published in 2007 - IPC F41H7/02 B62D55/00 

FIELD: military equipment.

SUBSTANCE: the method consists in the fact that the barrel is tightly closed from both ends, a gaseous cleaning chemical substance and a liquid cleaning substance are introduced in this closed barrel, the above substances enter into reaction with the impurities located on the inner surface of the barrel, the chemically treated residue is separated mechanically from the barrel and, if necessary, the barrel is flushed out and dried. The gaseous cleaning chemical substance is used as a foaming agent for foaming the liquid cleaning chemical substance. The device has end assemblies made for sealed installation on both ends of the barrel, and a mechanical cleaning component positioned in the barrel and made for reciprocating motion. The cleaning component has a hollow bush, whose diameter is less than the barrel caliber, a brush component, whose diameter corresponds to the barrel caliber and which is installed for free rotation relative to the mentioned bush, and a drive fixture performing the reciprocating motion brought inside through the hole of the hollow bush and made in compliance with the barrel length. The hollow bush and/or the brush component are fastened to the mentioned drive fixture.

EFFECT: provided barrel cleaning in the field conditions and in the conditions of repair shops.

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