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Inflator for side impact air bag

  • US 5,536,040 A
  • Filed: 04/24/1995
  • Issued: 07/16/1996
  • Est. Priority Date: 04/24/1995
  • Status: Expired due to Term
First Claim
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1. An air bag inflator comprising:

  • first and second coaxial tubes defining respective first and second chambers, each of said first and second tubes having terminal ends, said first chamber containing inflation fluid under pressure, said second tube having a passage for directing inflation fluid from the second chamber into an air bag;

    a weld securement fixing said terminal ends together with said first and second tubes extending in opposite directions from said securement;

    a rupturable wall blocking fluid communication between said first and second chambers;

    a canister in said second chamber having a movable section to rupture said wall upon moving a predetermined distance to enable inflation fluid to flow from said first chamber into said second chamber; and

    energizable initiator means located in said canister for, when energized, causing said movable section to move the predetermined distance.

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