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Occupant safety system

  • US 8,641,090 B2
  • Filed: 08/12/2011
  • Issued: 02/04/2014
  • Est. Priority Date: 08/16/2010
  • Status: Expired due to Fees
First Claim
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1. An occupant restraint system configured to provide restraint to a secured occupant of a vehicle, the restraint system comprising:

  • a seat belt webbing having a first end and a second end, the webbing configured to restrain the occupant;

    a member for anchoring the second end of the webbing; and

    an inflatable pretensioner having an inflator and an inflatable cushion that includes a first inflatable chamber and a second inflatable chamber,wherein the inflator is configured to inflate the first and second chambers of the cushion;

    wherein the first inflatable chamber is configured to deploy upon inflation to provide pretensioning of the webbing to restrain the secured occupant;

    wherein the second inflatable chamber is configured to deploy upon inflation to restrain the occupant;

    wherein the inflatable cushion includes an aperture between the first and second chambers, andwherein the webbing is located on the exterior of the inflatable chambers and passes through the aperture so that the webbing is positioned between the second inflatable chamber and the occupant.

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