F - Mech Eng,Light,Heat,Weapons – 42 – B
Patent
F - Mech Eng,Light,Heat,Weapons
42
B
102/8
F42B 3/00 (2006.01) C06C 7/00 (2006.01) F42D 1/04 (2006.01)
Patent
CA 1193907
TITLE Non-Electric Blasting Assembly ABSTRACT OF THE DISCLOSURE A detonator closed at one end by a primer shell whose integrally closed end has a percussion- sensitive primer charge supported adjacent its inside surface, and its outside surface disposed across the end of the detonator shell, is actuated by the detonation of one or two lengths of low-energy detonat- ing cord (LEDC) adjacent the primer shell's outside end surface, a single length of LEDC being arrayed in a manner such that a pair of axially separated segments thereof, or two lengths arrayed in a manner such that a segment from each length, is anchored in place in side-by-side relationship adjacent said surface. This cord array assures reliable ignition of a center- or rim-fired percussion primer by means of the side-output of LEDC even with explosive core loadings at the low end of the LEDC loading range. A preferred detonator has a sleeve having a loop-like projection, most preferably M-shaped, diametrically disposed beyond the primer shell end through which a looped length of LEDC can be threaded in various ways to hold the pair of segments adjacent the primer shell.
418465
Eti Canada Inc.
Eti Explosives Technologies International Ltd.
Mccallum Brooks & Co.
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