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End base assembly for vehicle airbag module

  • US 5,387,009 A
  • Filed: 06/15/1994
  • Issued: 02/07/1995
  • Est. Priority Date: 03/14/1994
  • Status: Expired due to Term
First Claim
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1. An inflator for a motor vehicle passenger-side airbag module which comprises:

  • a substantially cylindrical inflator housing having first and second ends and a ported sidewall for venting inflating gas to an airbag;

    a generant assembly within said inflator housing including a substantially cylindrical filter having first and second ends and enclosing a gas generant therein;

    a substantially cup-shaped first end base having a circular main body closing the first end of said inflator housing, a cylindrical outer wall surrounding the first end of said filter and enclosed within the sidewall of said inflator housing, and a cylindrical inner wall extending from the main body parallel to said outer wall;

    a pre-load member intermediate, and compressed between, said inner wall and said gas generant;

    a substantially cup-shaped second end base having a circular main body closing the second end of said inflator housing, a cylindrical outer wall surrounding the second end of said filter and enclosed within the sidewall of said inflator housing, and a cylindrical inner wall extending from the main body parallel to said outer wall in contact with said gas generant, and means for retaining an initiator within said inner wall;

    each of said first and second end bases being free of positive restraints against rotational movement about the longitudinal axis of said cylindrical filter; and

    means for compressing each of said first and second end bases against the respective ends of said cylindrical filter and sealing the junction of said outer wall with said inflator housing.

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