F - Mech Eng,Light,Heat,Weapons – 42 – B
Patent
F - Mech Eng,Light,Heat,Weapons
42
B
113/57, 102/9
F42B 3/00 (2006.01) F42B 1/028 (2006.01)
Patent
CA 1193908
ABSTRACT OF THE DISCLOSURE: A hollow charge of a directed explosion effect, which charge comprises a mantel of the charge portion, an explosive material fitted inside the mantel, a detonator fitted at one end of the charge, and a metal cone fitted at the opposite end of the charge. The mantel of the charge and the metal cone are precisely centered on a common symmetry axis on which the detonator is also positioned. The metal cone includes a concave globe face, wherein a detonation wave of the charge is spherical. As viewed from a direction of an object to be blasted, the cone is shaped so as to define a convexity in the cone wall with respect to a wall of a straight cone of equal cone angle, the cone wall being of uniform thickness and the convexity being less than the thickness of the wall, so that when the hollow charge is exploded, a jet and a slug formed thereby obtain a velocity of about 2,500 to 3,500 meter per second when detonation velocity of the explosive is 7,000 to 8,000 meters per second.
411577
Kyro Kari
Levamaki Reijo
Sydanmaki Pekka
Oy Sica Ab
Robic Robic & Associes/associates
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