DEEP-HOLE CHARGE Russian patent published in 1996 - IPC

Abstract RU 2069836 C1

FIELD: mining industry. SUBSTANCE: invention is intended for rock breaking. Deep-hole charge is composed of explosive 1 put into cylindrical case 2 and cartridge-detonator 3 located in lower part of charge. Detonating cord 4 is placed over outer surface of case 3 along spiral with spacing equal to diameter of hole. Lower end of cord is positioned into cartridge-detonator, its upper end is connected to demolition network. EFFECT: improved operational efficiency and safety. 1 dwg

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RU 2 069 836 C1

Authors

Alferov Mikhail Jaroslavovich

Alferov Jurij Mikhajlovich

Dates

1996-11-27—Published

1993-06-22—Filed