Shaped primer

Details Shaped primer Shaped primer

1990-02-28

1991-01-08

Jordan, Charles T.

Ammunition and explosives

Igniting devices and systems

Heat, friction, or chemical primers or ignitors

102322, F42C 1909

Patent

active

049826620

ABSTRACT:
A primer for explosives comprises a shaped charge of detonating material for use with an initiator such as a detonator or fuse cord which penetrates into the charge at least about as far as its center of mass, wherein said primer has a cavity for receiving said initiator and a shock attenuator in the form of an insert of inert material of lower density than the detonating material which extends from the surface of the charge into the charge to a desired detonation region and has a portion surrounding at least a part of the length of the cavity and defining an inlet for insertion of said initiating means, the density of the insert relative to the detonating material and shape thereof providing for improved detonation of the primer.

REFERENCES:
patent: 42363 (1864-04-01), Ganster
patent: 45806 (1865-01-01), Adams
patent: 734966 (1903-07-01), Schou
patent: 1015945 (1912-01-01), DuPont
patent: 1738402 (1929-12-01), Snelling et al.
patent: 2408486 (1946-10-01), Shinkle
patent: 3252418 (1966-05-01), Terrioux
patent: 3672300 (1972-06-01), Axelson et al.
patent: 4112847 (1978-09-01), Thomanek
patent: 4184430 (1980-01-01), Mock
patent: 4297946 (1981-11-01), Paton et al.
patent: 4425849 (1984-01-01), Jorgenson
patent: 4765246 (1988-08-01), Carlsson et al.

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