Vehicular occupant restraint
OwnerRobert D. Taylor, Michael W. Barnes +1inventors
InventorsRobert D. Taylor, Michael W. Barnes, Gary L. Smith
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Abstract
An igniter composition such as for a gas generant material used in pressure activated restraint system devices such as micro-gas generator applications such as seat belt pretensioners is provided. The igniter composition includes a fuel component containing at least about 3 composition weight percent and less than 15 composition weight percent of boron and an oxidizer component, wherein the fuel component and the oxidizer component are present in stoichiometrically balanced amounts. Associated methods of gas generation are also provided.
Claims26
An igniter composition comprising:
- a fuel component containing at least about 3 composition weight percent and less than 15 composition weight percent of boron, and
- an oxidizer component containing at least one oxidizer material selected from the group consisting of alkali metal nitrates, alkaline earth metal nitrates and mixtures thereof,
- wherein the fuel component and the oxidizer component are present in stoichiometrically balanced amounts.
An occupant restraint system device comprising a housing containing a supply of reactant material, the reactant material including a fuel component containing at least about 3 composition weight percent and less than 15 composition weight percent of boron, and an oxidizer component containing at least one oxidizer material selected from the group consisting of alkali metal nitrates, alkaline earth metal nitrates and mixtures thereof, wherein the fuel component and the oxidizer component are present in stoichiometrically balanced amounts.
A method of generating gas suitable for use in an occupant restraint system of a motor vehicle, said method comprising:
- igniting a supply of an igniter composition containing a fuel component containing at least about 3 composition weight percent and less than 15 composition weight percent of boron, and an oxidizer component containing at least one oxidizer material selected from the group consisting of alkali metal nitrates, alkaline earth metal nitrates and mixtures thereof, wherein the fuel component and the oxidizer component are present in stoichiometrically balanced amounts, to form igniter composition reaction products and
- contacting a supply of a gas generant composition with the igniter composition reaction products to form product gas.
Dependencies are inferred from the claim text.