Detonator element

Details Detonator element Detonator element

1980-01-14

1982-03-02

Jordan, Charles T.

Ammunition and explosives

Igniting devices and systems

Fuse

F42C 900

Patent

active

043174132

ABSTRACT:
A delay detonator element having a short delay time, especially 0.1-5.0 ms and advantageously 0.3-2.0 ms, for use in artillery ammunition and rocket warheads of caliber 40 mm or more, and which provides detonation of a secondary high explosive charge without the use of sensitive primary high explosives or detonators is characterized in that a thick-walled tube (1) having a thin-walled base contains a pyrotechnic charge (5),which upon ignition generates hot combustion gases that pass through a nozzle (4), provided between said ignition charge (5) and a subsequent pyrotechnic booster charge (3), the opening of said nozzle having a smaller cross-sectional area than the cross-sectional area of said booster charge (3), that said ignition charge (5) ignites said booster charge (3), which upon combustion yields hot combustion gases that penetrate into the secondary high explosive charge (2) and ignite it over a large area and under high pressure and high pressure gradients, resulting in a rapid transition to full detonation of said high explosive.

REFERENCES:
patent: 2441248 (1948-05-01), Morris et al.
patent: 3162127 (1964-12-01), Breslow et al.
patent: 4144814 (1979-03-01), Day et al.

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