Method and apparatus for removing obstructions in mines

Details Method and apparatus for removing obstructions in mines Method and apparatus for removing obstructions in mines

F - Mech Eng,Light,Heat,Weapons

42

D

F42D 3/02 (2006.01) F42B 12/20 (2006.01) F42D 3/00 (2006.01) E21B 7/00 (2006.01)

Patent

CA 2314341

The present invention is directed to a system for fragmenting rock obstacles and obstructions in mines. The system uses a projectile having a flat or concave nose and a detonating device that has a safety pin to prevent a striker from prematurely igniting the primer during handling of the projectile. The primer is designed to initiate a detonator which detonates an explosive charge upon impact of the projectile with the target rock. The system can include transmitters and receivers and counters to provide remote operation of projectile launch, prearming, arming and/or detonation.

L'invention a trait à un système servant à fragmenter des obstacles et des matières d'obstruction de roche dans des mines. Le système utilise un projectile comportant une ogive plate ou creuse et un dispositif de détonation équipé d'une goupille de sécurité afin de prévenir l'allumage prématuré de l'amorce par un percuteur au cours de la manipulation du projectile. L'amorce est conçue pour amorcer un détonateur qui fait exploser une charge explosive au moment de l'impact du projectile sur la roche cible. Le système peut comporter de émetteurs, des récepteurs et des compteurs pour assurer une commande à distance du lancement, de l'armement préalable, de l'armement et/ou de l'explosion du projectile.

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