Ignitor with stable low-energy thermite igniting system

Patent · Tue Feb 05 00:00:00 EST 1991

OSTI ID:867691

Kelly, Michael D ^[1]; Munger, Alan C ^[2]

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1. West Alexandria, OH
2. Miamisburg, OH

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.

• Research Organization: MONSANTO RESEARCH CORP
• DOE Contract Number: AC04-76DP00053
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4989515
• Application Number: 07/390,853
• OSTI ID: 867691
• Country of Publication: United States
• Language: English

Related Subjects

ignitor
stable
low-energy
thermite
igniting
compact
utilizes
components
initiating
charge
output
ultra-fine
powder
form
compacted
50-70
theoretical
maximum
density
disposed
cavity
header
adjacent
electrical
ignition
device
bridgewire
mounted
ignitable
operation
hot-wire
mode
high-density
consoladated
90-99
opposite
sleeve
provided
mounting
confined
therebetween
initiating charge
disposed adjacent
powder form
output charge
ignition device
fine powder
electrical ignition
low-energy thermite
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