GAS GENERATOR FOR EXPELLING HALON REPLACEMENTS
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United States of America Patent
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Issued Date -
Jan 24, 2002
app pub date -
Aug 9, 1999
filing date -
Aug 9, 1999
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A gas generator capable of quickly producing a large quantity of substantially solids-free nontoxic gas useful as a propellant in halon replacement fire suppression systems is provided. The double base castable propellant composition is formulated from a major amount of ammonium nitrate, a minor amount of nitrocellulose, at least one selected high energy nitrate ester plasticizer, a thermal scavenger, and at least one burning rate modification and control additive to achieve a burning rate of 0.2 inches per second or greater at 1000 psia. The burning rate is further enhanced by the configuration of the solid propellant, which is formed to have dimensions selected to enhance the burning rate. The gas generator composition and physical arrangement synergistically produce an optimally rapid burning rate.
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