Patent ID: 7810430
Filing Date: 2010-10-12
Classification: F42B,F42C,F42D

Abstract:
1. A detonator assembly for use in connection with at least one blasting machine that transmits at least one wireless command signal via a first medium, the detonator assembly comprising: a base charge; a command signal receiving and processing means for wirelessly receiving and processing said at least one command signal from said at least one blasting machine; an active power source to power said command signal receiving and processing means; a power receiver for wirelessly receiving via a second medium power transmitted by a power emitter; converting means for converting said power received from the power receiver to electrical power; a passive power source in electrical connection with the converting means, the passive power source capable of storing said electrical power derived from said converting moans thereby to charge the detonator; and a firing circuit in connection with said base charge, for selectively receiving said electrical power stored in said passive power source, said active power source generating a power insufficient to activate said firing circuit and actuate said base charge, wherein receipt of a command signal to FIRE by said command signal receiving means causes release of said electrical power from said passive power source into said firing circuit thereby to actuate said base charge.