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Hybrid gas generator

  • US 7,739,957 B2
  • Filed: 12/31/2007
  • Issued: 06/22/2010
  • Est. Priority Date: 12/29/2006
  • Status: Expired due to Fees
First Claim
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1. An inflator comprising:

  • a housing;

    a cold gas chamber within said housing for storage of a stored gas supply;

    a pyrotechnic chamber within said housing;

    a pyrotechnic charge within said pyrotechnic chamber;

    a wall adjoining said cold gas chamber and said pyrotechnic chamber;

    a gas orifice defined in said wall for passage of gas between said chambers;

    a burst disc covering said gas orifice prior to inflator operation; and

    a perforated flexible member contained within said cold gas chamber,wherein said flexible member is fixed about said orifice, and presents both a concave and convex shape during operation of said inflator, for modulation of gas flow through said orifice.

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