Accession Number : ADD017558

Title :   Shock Insensitive Initiating Devices.

Descriptive Note : Patent, Filed 14 Feb 94, patented 28 Feb 95,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Brown, Jerry S ; Conkling, John A

Report Date : 28 Feb 1995

Pagination or Media Count : 6

Abstract : The invention relates to a shock insensitive explosive train initiating device including a thin elongated metal casing containing a quantity of hydrated metal picrate therein, a thermite igniter composition disposed adjacent to the hydrated metal picrate charge and an ignition means selected from ignition means consisting of an electric match and a length of fuze cord. In a specific example, the hydrated metal picrate charge is barium picrate hydrate which may be disposed in an open or a sealed copper or aluminum casing. In the embodiment of a tin/zinc alloy, protective, safety cover is disposed over a portion of the hydrated metal picrate. This safety cover has a low melting point (200 deg C.) and is adapted to melt in the event of a fire to thereby unconfine the hydrate metal picrate charge prior to it reaching explosion temperature of approximately 341 deg C.

Descriptors :   *INSENSITIVE EXPLOSIVES, *PATENTS, *EXPLOSIVES INITIATORS, METALS, EXPLOSIONS, SENSITIVITY, FUZES(ORDNANCE), COPPER, ALUMINUM, LENGTH, SHOCK, SAFETY, ZINC, IGNITION, MELTING POINT, TIN ALLOYS, CORDAGE

Subject Categories : Ammunition and Explosives

Distribution Statement : APPROVED FOR PUBLIC RELEASE