System for the initiation of rounds of individually delayed...

F - Mech Eng,Light,Heat,Weapons – 42 – D

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Details

F42D 1/055 (2006.01) F42B 3/12 (2006.01) F42D 1/05 (2006.01) F42D 1/06 (2006.01)

Patent

CA 2441471

Disclosed is an electronic detonator delay assembly (24), having an associated detonator (12), that can be pre-programmed on site with a time delay and installed in a borehole to carryout a blast operation. The assembly is first coupled to a programming unit (50) to program the desired time delay, and then to a blasting unit (100), by means of a magnetic coupling device (24) in the electronic delay assembly and to a single pass of a conductive wire (22) through the magnetic coupling device. The programmed time delay in the electronic delay assembly can be double checked through a wireless communication link (6) between the electronic delay assembly and the programming unit.

L'invention concerne un ensemble (24) de temporisation de détonateur électronique qui peut être préprogrammé sur place avec une durée de retard et installé dans un trou de mine afin de produire une explosion. Cet ensemble est d'abord connecté avec une unité (50) de programmation qui programme le retard temporel désiré, puis avec une unité (100) d'explosif par l'intermédiaire d'un dispositif (24) de couplage magnétique se trouvant dans l'ensemble de temporisation électronique, et avec un fil (22) conducteur à voie unique passant à travers le dispositif de couplage magnétique. Le temps de retard programmé dans l'ensemble de temporisation électronique peut être contre-vérifié par l'intermédiaire d'une liaison (6) de communication sans fil connectant l'ensemble de temporisation électronique et l'unité de programmation.

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