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DUAL MODE INFLATABLE CURTAIN CUSHION

  • US 20090218798A1
  • Filed: 02/29/2008
  • Published: 09/03/2009
  • Est. Priority Date: 02/29/2008
  • Status: Abandoned Application
First Claim
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1. An inflatable curtain cushion assembly for a vehicle comprising:

  • an inflatable curtain cushion comprising opposing sides which define a void, the inflatable curtain cushion inflatably coupled to an inflator, the inflatable curtain cushion comprising;

    a first chamber configured to cushion an occupant in a vehicle upon deployment of the cushion, the first chamber configured to retain inflation gas at a pressure higher than an ambient air pressure for a first duration;

    a second chamber disposed below the first chamber, configured to cushion an occupant upon deployment and keep the inflatable curtain taut, the second chamber configured to retain inflation gas at a pressure above an ambient air pressure for a second duration, which is greater than the first duration; and

    ,at least one one-way valve disposed between the inflator and the second chamber, the one-way valve configured to receive inflation gas from the inflator and allow the inflation gas to flow into the second chamber, but not flow from the second chamber back through the one-way valve.

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