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Inflatable bolster

  • US 8,544,876 B2
  • Filed: 04/14/2009
  • Issued: 10/01/2013
  • Est. Priority Date: 04/11/2008
  • Status: Expired due to Fees
First Claim
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1. An inflatable bolster for use in a passenger compartment of a vehicle, the bolster comprising:

  • a) a hollow body comprisingi. a first wall devised to face a mating surface of the vehicle, the first wall having a central area and a circumferential area surrounding the central area,ii. a second wall opposite the first wall and devised to face the passenger compartment, andiii. an air chamber formed between the first and second walls;

    b) an inflator for injecting a pressurized fluid into the air chamber, thereby inflating the hollow body, the inflator being in communication with the hollow body; and

    c) a plurality of concentric extension pleats formed in the first wall, the extension pleats extending around a major part of the circumferential area, the extension pleats contacting the second wall at a plurality of contact points which are distributed across the second wall, each contact point forming a bond between the first and second walls, the plurality of contact points being sufficient in number to at least partially suppress audible vibration of the second wall.

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