CARTRIDGE-OPERATED GUN AND THROWABLE MEMBER THEREFORE Russian patent published in 2008 - IPC B25C1/14 

FIELD: land-based and underwater orifice punching and fastening member driving equipment, which build-in fastening members in metal structures.

SUBSTANCE: cartridge-operated gun comprises shell filled with gunpowder charge and initiation unit. The initiation unit is electric detonator arranged outside barrel and connected thereto through cut-away membrane. Arranged in the barrel is piston adapted to receive throwable member (punch or fastening member). The gun is installed on material to be pierced and is carried by support members having magnets. Throwable member has conical sharpened tip with 90-120° angle taper. Remainder part converge at 25-30° angle.

EFFECT: increased punching depth and safety, extended functional capabilities.

2 cl, 2 dwg, 1 ex