Method and apparatus for blasting electrically detonating...

Details Method and apparatus for blasting electrically detonating... Method and apparatus for blasting electrically detonating...

F - Mech Eng,Light,Heat,Weapons

42

C

342/47

F42C 11/04 (2006.01) F41A 19/63 (2006.01)

Patent

CA 1218736

NIPPON YUSHI 58-194,118 Abstract of the Disclosure A number of detonating primers are electrically blasted by supplying a high frequency current through a bus wire formed by a pair of parallel conductors connected to each other at distal ends and having a constant impedance with which bus wire loops connected to the detonating primers via leg wires are electro- magnetically coupled via a number of magnetic cores having slits formed therein. At first, one or more loops are inserted into respective magnetic core through the slit and one of the parallel conductors is also inserted into the magnetic core through the slit. When the high frequency current having a frequency from 100 KHz to 1 MHz is passed through the conductors of bus wire in opposite directions, there is induce electromagnetically secondary high frequency currents in respective loops, which are supplied to respective detonating primers for explosion. - 23 -

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