초록 ▼

The present invention relates to the fire arm industry and more particularly to a system that impresses a bar type code into the brass cartridge casing that has been fired from a gun. The identifying markings are placed on the gun with as little visibility as possible but enough to form the code to

The present invention relates to the fire arm industry and more particularly to a system that impresses a bar type code into the brass cartridge casing that has been fired from a gun. The identifying markings are placed on the gun with as little visibility as possible but enough to form the code to identify the fired casing as being from one specific handgun, rifle or shotgun. The code markings may be placed on the bolt, breech and/or the firing pin of any firearm without effecting its operation in any way. The identifying code markings are impressed on the surface of the shell casing when the firearm is fired. These identifying code marks may be placed at the outer rim surface, inside the primer area rim, on the primer its self or in multiple places on the shell casing. The identifying code markings are similar to bar code markings and directly relates the spent casing that has been fired by a firearm, to that firearm. The system of the present invention is especially useful for criminal investigations of a crime seen in which a firearm was used.

대표청구항 ▼

A system for identifying the spent brass cartridge that is fired from a gun comprising imposing microscopic markings selected from the group consisting of grooves, points and ridges on that portion of the gun selected from the group consisting of the bolt face, and the firing pin, said markings impr

A system for identifying the spent brass cartridge that is fired from a gun comprising imposing microscopic markings selected from the group consisting of grooves, points and ridges on that portion of the gun selected from the group consisting of the bolt face, and the firing pin, said markings impressed on the surface of the spent cartridge left in the chamber of the gun upon the firing of said gun.