Time delay primer and method of using same

Details Time delay primer and method of using same Time delay primer and method of using same

F - Mech Eng,Light,Heat,Weapons

42

C

102/31

F42C 15/00 (2006.01) F42D 1/06 (2006.01)

Patent

CA 1084774

TIME DELAY PRIMER AND METHOD OF USING SAME Abstract of the disclosure A delay primer unit for detonating an explosive ma- terial in a borehole with a detonating cord down line ex- tending into the borehole wherein the unit comprises an explosive element capable of detonating the explosive ma- terial upon being detonated, means for preventing direct detonation of the explosive element by the down line and an elongated, flexible time delay detonation element having a first end slidably connected to the down line and a second end connected in detonation relationship with the explosive element and generally movable with respect to the first end. The delay element is used to mount the explosive element on the down line.

294213

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