Method of electrically blasting a plurality of detonators...

Details Method of electrically blasting a plurality of detonators... Method of electrically blasting a plurality of detonators...

F - Mech Eng,Light,Heat,Weapons

41

A

102/10, 342/47

F41A 19/63 (2006.01) F42D 1/055 (2006.01) F42D 1/06 (2006.01)

Patent

CA 1288503

METHOD OF ELECTRICALLY BLASTING A PLURALITY OF DETONATORS AND ELECTRIC BLASTING APPARATUS FOR USE IN SAID METHOD Abstract of the Disclosure An apparatus for electrically blasting a number of electric detonators arranged at a plurality of working faces, including a single controller having a power source unit for supplying a D.C. voltage and a plurality of ignition control units for selectively applying the D.C. voltage; a plurality of oscillators each arranged near respective working faces, the number of the oscillators corresponding to that of the ignition control units, each oscillators being energized with the D.C. voltage to generate a high frequency current and being connected to respective ignition control units via an electric wire bundle; and a plurality of lead wires each connected to outputs of respective oscillators. Loop-like leg wires of electric detonators are electro- magnetically coupled with the lead wires with the aid of transformer magnetic cores.

553928

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