PRIMER DETONATOR FOR SMALL-ARMS CARTRIDGES Russian patent published in 2006 - IPC F42C19/10 

FIELD: ignition devices of powder charge for small-arms cartridges.

SUBSTANCE: the primer cap has a single power body in the form of a cylindrical sleeve, positioned in which with a rest at its bottom is a shell with a charge of an ignition compound, having an axial recess hermetically sealed by a protective coating, and a metal anvil placed in an obturating cup rolled in by the edges of the side wall of the power body. The anvil is made with an inner tapered recess and working cone with a flat working platform touching the charge surface. The obturating cup is made in the form of a piston with a tapered bottom and central priming hole. The lateral priming hole in the anvil is made cylindrical, it is positioned between the working cone and the anvil side wall without opening of the latter, and oriented to the receiver cavity formed by a cylindrical recess over the working cone, inner tapered cavity and obturating cup. The smaller diameter of the inner cavity of the anvil relates to the diameter of the anvil working platform as 1:1.3...1.5).

EFFECT: provided production of ignition means for small arms with enhanced ballistic characteristics up to a pressure of round powder gases within 3300 to 3500 ng/sq.cm and hermetic sealing of this pressure in the cartridge.

2 cl, 2 dwg