Cartridge and charging system incorporating same

Details Cartridge and charging system incorporating same Cartridge and charging system incorporating same

F - Mech Eng,Light,Heat,Weapons

42

B

F42B 3/22 (2006.01) F42B 3/02 (2006.01) F42B 3/087 (2006.01) F42D 1/20 (2006.01) F42D 1/22 (2006.01) F42D 3/04 (2006.01)

Patent

CA 2373760

Cartridge (10) includes first compartment (12) for holding a volume of energy absorbing stemming material (14) and adjacent second compartment (16) for holding a volume of energetic explosive or propellant material (18). Initiator (28) is disposed in compartment (16). Dividing wall (22) separates compartments (12, 16) and may be conical in shape so as to deform and seal the borehole upon detonation of material (18). Cartridge (10) may be integrally formed or assembled from two separate containers coupled together. Compartment (12) can be made from thin-walled material including one or more slits or lines of weakness to facilitate deformation or bursting. Cartridge (10) can be secured to a stemming bar for placement in the borehole. Charging systems and methods of charging a hole formed in hard material are also described and claimed.

Cette cartouche (10) comporte un premier compartiment (12) destiné à loger un certain volume de bourrage absorbeur d'énergie (14) et un second compartiment adjacent (16) destiné à loger un certain volume de matériau énergétique explosif ou propulseur (18). Un initiateur (28) est placé dans le second compartiment (16). La cloison (22), qui sépare les compartiments (12, 16), peut être de forme conique afin de pouvoir se déformer et d'obturer le trou de mine dès la détonation du matériau (18). Cette cartouche (10) peut être faite d'une seule pièce ou être le fruit de l'assemblage de deux contenants distincts. Le premier compartiment (12) peut être fait d'un matériau à parois minces comportant une ou plusieurs encoches ou lignes de faiblesse facilitant la déformation ou l'éclatement. Cette cartouche (10) peut être fixée à une barre de bourrage en vue de sa mise en place dans le trou de mine. L'invention porte également sur des systèmes de chargement et sur des procédés de chargement d'un trou ménagé dans un matériau dur.

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