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Airbelt inflator

  • US 6,871,873 B2
  • Filed: 02/26/2003
  • Issued: 03/29/2005
  • Est. Priority Date: 02/26/2002
  • Status: Expired due to Fees
First Claim
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1. A gas generator comprising:

  • an inflator housing comprising a first end and a second end, said housing further comprising an initiator assembly and a propellant bed ignitable by said initiator assembly; and

    a filter body in fluid communication with said inflator housing, the filter body fixed to said inflator housing and coaxially aligned therewith, the filter body comprising at least a first filter and a second filter in coaxial, spaced, and linear relation to said first filter, said filter body further comprising at least one annular spacer to facilitate the spaced relation between said first and second filters, wherein the interstitial volume of said first filter is either equal to, greater than, or less than the interstitial volume of said second filter, and, gas produced from combustion of said propellant axially flows from the inflator housing through the filter body, and then exits the filter body once passed through said second filter.

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