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Air bag inflation gas generator

  • US 5,062,367 A
  • Filed: 12/01/1989
  • Issued: 11/05/1991
  • Est. Priority Date: 12/05/1988
  • Status: Expired due to Term
First Claim
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1. As air bag inflation gas generator comprising a combustion chamber containing a gas generating agent, an igniter and an ignition agent arranged in the center of said combustion chamber to burn said gas generating agent, a combustion chamber filter arranged along an inner wall of said combustion chamber, a plenum chamber annularly surrounding and communicating with said combustion chamber to receive gas flow from said combustion chamber filter, a plenum chamber filter contained in said plenum chamber, and gas outlets provided with said plenum chamber to feed the gas flow from said plenum chamber filter to an air bag, wherein:

  • said combustion chamber comprises a one-piece bottom-closed cylinder of a housing body and a lid welded to seal the opening of said bottom-closed cylinder, said lid receiving said igniter,said housing body comprises a flange extending outward and formed integrally, in one-piece, with the opening of said bottom-closed cylinder, and an external cylinder formed on the periphery of said flange and bent toward the bottom of said housing body,said plenum chamber is formed by covering said external and bottom-closed cylinders with a covering member from the bottom of said housing body, andsaid covering member is welded to said external and bottom-closed cylinders.

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