Ignitor with stable low-energy thermite igniting system

Details Ignitor with stable low-energy thermite igniting system Ignitor with stable low-energy thermite igniting system

1989-08-08

1991-02-05

Jordan, Charles T.

Ammunition and explosives

Igniting devices and systems

Electrical primer or ignitor

1022025, F42B 310

Patent

active

049895150

ABSTRACT:
A stable compact low-energy igniting system in an ignitor utilizes two components, an initiating charge and an output charge. The initiating charge is a thermite in ultra-fine powder form compacted to 50-70% of theoretical maximum density and disposed in a cavity of a header of the ignitor adjacent to an electrical ignition device, or bridgewire, mounted in the header cavity. The initiating charge is ignitable by operation of the ignition device in a hot-wire mode. The output charge is a thermite in high-density consoladated form compacted to 90-99% of theoretical maximum density and disposed adjacent to the initiating charge on an opposite end thereof from the electrical ignition device and ignitable by the initiating charge. A sleeve is provided for mounting the output charge to the ignitor header with the initiating charge confined therebetween in the cavity.

REFERENCES:
patent: 3134329 (1964-05-01), Zeman
patent: 3160097 (1964-12-01), Colburn, Jr. et al.
patent: 3732129 (1973-05-01), Martin
patent: 4013061 (1977-03-01), Trumble et al.
patent: 4354432 (1982-10-01), Cannavo et al.
patent: 4464989 (1984-08-01), Gibson et al.
patent: 4484960 (1984-11-01), Rucker

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