Explosive and thermic compositions or charges – Containing inorganic oxygen-halogen salt – Alkali metal oxygen-halogen salt
Reexamination Certificate
2005-05-17
2005-05-17
Felton, Aileen (Department: 3641)
Explosive and thermic compositions or charges
Containing inorganic oxygen-halogen salt
Alkali metal oxygen-halogen salt
C149S078000
Reexamination Certificate
active
06893517
ABSTRACT:
A nitrocellulose-free, gas-generating composition for use in vehicle occupant restraint systems, in particular in a belt tensioner gas generator, substantially consists of at least one nitrogen-containing organic fuel in a proportion of 55 to 70% by weight, an inorganic oxidator in a proportion of 30 to 45% by weight, at least one combustion moderator in a proportion of up to 10% by weight and up to 5% by weight conventional adjuvants and additives, each in relation to the overall weight of the composition. The composition has a pressure exponent of less than 0.35 and a combustion rate at 200 bar of at least 40 mm/s.
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An excerpt of the technical book by Köhler and Meyer entitled EXPLOSIVSTOFFE, pp. 5-9, ISBN 3-527-28864-3. This excerpt discloses gas generators for air bags and discloses examples of propellant charges for such gas generators. The document refers to natrium azide and to azide-free propellants.
Hofmann Achim
Rödig Karl-Heinz
Schropp Roland
Zeuner Siegfried
Felton Aileen
Tarolli, Sundheim, Convell & Tummino L.L.P.
TRW Airbag Systems GmbH & Co. KG
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