F - Mech Eng,Light,Heat,Weapons – 42 – C
Patent
F - Mech Eng,Light,Heat,Weapons
42
C
102/30
F42C 1/00 (2006.01) C06C 7/00 (2006.01) F42B 3/16 (2006.01) F42B 3/26 (2006.01) F42D 1/04 (2006.01)
Patent
CA 1150104
E.I. du Pont de Hemoura and Company (Bryan, Paul J.) ABSTRACT A non-electric delay detonator adapted for field-assembly with a low-energy detonating cord has an expansion shell into which the cord is inserted at the time of use. The pressure pulse resulting from the detonation of the cord causes the shell to expand and an ignition charge to be actuated as a result of sudden compression between the expansion shell and a rigid capsule. The burning ignition charge ignites a delay charge, which in turn ignites a priming charge, causing the base charge to detonate. The presence of ignition charge in an annular spacing between the shell and capsule walls, as well as between the shell and capsule ends, and the proper positioning of cord- gripping means in the shell cavity, assure actuation of the ignition charge whether or not the cord is shoved to the bottom of the shell.
346177
Eti Canada Inc.
Mccallum Brooks & Co.
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