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Inflation fluid container and initiator with press-fit fluid seal

  • US 5,609,361 A
  • Filed: 08/24/1995
  • Issued: 03/11/1997
  • Est. Priority Date: 08/24/1995
  • Status: Expired due to Fees
First Claim
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1. Apparatus for inflating an inflatable vehicle occupant restraint, said apparatus comprising:

  • container means for defining a storage chamber, said container means including a container wall having a frusto-conical surface defining a passage extending outward from said storage chamber through said container wall;

    inflation fluid contained under pressure in said storage chamber; and

    initiator means for initiating a flow of said inflation fluid from said storage chamber to the restraint to inflate the restraint, said initiator means including pyrotechnic material and conductor means for igniting said pyrotechnic material upon the passage of electric current through said conductor means;

    said initiator means further including a tubular part containing said pyrotechnic material and said conductor means, said tubular part extending into said storage chamber through said passage in said container wall and having a frusto-conical peripheral surface;

    said frusto-conical surfaces having a condition of being pressed tightly against each other in sealing contact so as to comprise first sealing means for blocking said inflation fluid from exiting said storage chamber through said passage between said tubular part and said container wall;

    said tubular part defining a conduit extending along an axis, said conduit containing a glass part which comprises second sealing means for isolating said pyrotechnic material from the ambient atmosphere, said first sealing means applying a radially compressive sealing force to said tubular part, said glass part being spaced from said first sealing means along said axis.

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