Flammable gas initiated pyrotechnic inflator
 A method and apparatus for igniting a pyrotechnic gas generator, or inflator, such as those used in automotive airbag systems is disclosed. The ignition system uses a flammable gas to ignite the pyrotechnic gas generant. The flammable gas can be stored either throughout interior free space in the inflator or it can be maintained in a separate sealed container either separately or jointly with the pyrotechnic gas generant. The method and apparatus offer both cost savings and a reduction in delay time over conventional pyrotechnic ignition systems. 
Autoliv ASP, Inc.
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C06C C06D C06D B60R B60R
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Donald J. Steven R. David W. Scott A. David J. Wesley L. Karl K.
Cunningham Pripps Lindsey Jackson Green Hatt Rink