Impact sensitive high temperature detonator

Details Impact sensitive high temperature detonator Impact sensitive high temperature detonator

F - Mech Eng,Light,Heat,Weapons

42

C

102/30

F42C 1/00 (2006.01) C06C 7/00 (2006.01) F42C 19/10 (2006.01)

Patent

CA 1228505

ABSTRACT "Impact Sensitive High Temperature Detonator" An impact sensitive detonator, particularly suitable for the initiation of explosive charges in oil wells, comprises a cylindrical casing closed at one end and open at the other end, the closed end having a thin striking surface which deforms without rupture when struck by a rounded firing pin. The casing contains a primary explosive charge preferably lead azide, adjacent to the closed end, a mass of finely divided refractory material, for example, silicon carbide adjacent to the primary explosive charge and an impact member, extending transversely across the casing and forming with the casing a confined space for the primary explosive charge and the refractory material. The refractory material and the impact member aid the initiation of the primary explosive charge. Optionally, a second charge of primary explosive may be placed on the output side of the impact member. Preferred forms of the detonator contain an output charge of high explosive for example, hexanitrostillbene between the impact member and the open end of the casing.

450437

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