Single charge pyrotechnic
First Claim
1. A single charge pyrotechnic composition comprising (a) about 5 to 55 percent by weight metal fuel selected from titanium, zirconium, magnesium, aluminum, hafnium, and chromium or combinations thereof, (b) about 35 to 80 percent by weight oxidizer selected from an alkali or alkali metal perchlorate, chlorate or nitrate, or combinations thereof, and (c) about 1 to 30 percent by weight of a secondary fuel selected from boron, silicon or carbon, or combinations thereof.
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Accused Products
Abstract
A single charge pyrotechnic material comprising a metal fuel, an oxidizer and a secondary fuel which can be used to control the rate of reaction of the pyrotechnic. The composition can be used as a single charge igniter in an automotive air bag system in place of the separate ignition charge and enhancer charge currently utilized.
40 Citations
16 Claims
- 1. A single charge pyrotechnic composition comprising (a) about 5 to 55 percent by weight metal fuel selected from titanium, zirconium, magnesium, aluminum, hafnium, and chromium or combinations thereof, (b) about 35 to 80 percent by weight oxidizer selected from an alkali or alkali metal perchlorate, chlorate or nitrate, or combinations thereof, and (c) about 1 to 30 percent by weight of a secondary fuel selected from boron, silicon or carbon, or combinations thereof.
Specification