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Airbag inflator and an airbag apparatus

  • US 6,409,214 B2
  • Filed: 12/31/1998
  • Issued: 06/25/2002
  • Est. Priority Date: 04/08/1996
  • Status: Expired due to Term
First Claim
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1. An airbag inflator, comprising:

  • a housing having a diffuser shell and a closure shell, the diffuser shell being formed by pressing a metal plate and including a circular portion, and a circumferential wall portion formed at an outer circumference of the circular portion and having gas discharge ports, the closure shell being formed by pressing a metal plate, and including a circular portion having a bent portion defining a center hole formed at a center of the circular portion, the bent portion extending towards an outer side with respect to said closure shell along a longitudinal axis of said housing, and forming an inner circumferential surface; and

    a central cylinder member provided within said housing, said central cylinder member having first through-holes defined therein, and being inserted through the center hole, wherein an entire inner circumferential surface of the bent portion forms a receiving portion that receives an outer circumferential surface of said central cylinder member, and the receiving portion has only a single inner diameter.

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