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VEHICLE SIDE AIR CURTAIN WITH CONTROLLED PRESSURE CHAMBER

  • US 20150054265A1
  • Filed: 08/20/2013
  • Published: 02/26/2015
  • Est. Priority Date: 08/20/2013
  • Status: Abandoned Application
First Claim
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1. A vehicle side air curtain for a motor vehicle, the side air curtain having an inflator, a main inflatable chamber, and an integral separate, self-contained controlled pressure chamber in limited fluid communication with the main inflatable chamber of the side air curtain and disposed laterally in line with and sized to laterally restrain the head and upper thoracic region of a vehicle occupant, wherein the main inflatable chamber of the side air curtain is inflated to an initial pressure within an initial impact time period immediately following actuation of the inflator and a second lower stabilized pressure thereafter to extend the duration of the pressurization of the main inflatable chamber of the side air curtain beyond the initial impact time period, and the controlled pressure chamber of the side air curtain is inflated to an initial pressure substantially lower than the initial pressure of the main inflatable chamber of the side air curtain and a second higher stabilized pressure beyond the initial impact time period, the initial pressure in the controlled pressure chamber being favorable to side impact occupant protection substantially immediately following actuation of the inflator and wherein the head and/or upper thoracic region of the vehicle occupant contacts the controlled pressure chamber when deployed.

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