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Deactivation of second stage of air bag inflator

  • US 6,581,961 B1
  • Filed: 12/17/1999
  • Issued: 06/24/2003
  • Est. Priority Date: 12/17/1999
  • Status: Expired due to Fees
First Claim
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1. An apparatus for helping to protect a vehicle occupant, said apparatus comprising:

  • an inflatable vehicle occupant protection device;

    a primary inflation fluid source and a secondary inflation fluid source actuatable independently of each other;

    means for actuating said primary inflation fluid source to inflate said inflatable device to help protect the vehicle occupant without actuating said secondary inflation fluid source;

    means for sensing the position of the vehicle occupant subsequent to actuation of said primary inflation fluid source and for providing an output signal, said means for sensing being operable to sense occupant position independent of pressure within said inflatable vehicle occupant protection device; and

    means for actuating said secondary inflation fluid source in response to said output signal.

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