Air bag inflator

Land vehicles – Wheeled – Attachment

Patent

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Details

B60R 2128

Patent

active

055337546

ABSTRACT:
An inflator (14) for inflating an air bag (12) includes a housing (50) containing ignitable gas generating material (60), and an initiator (240) for igniting the gas generating material (60). The inflator (14) further includes a closure cap (56) for closing an end portion (352) of the housing (50), and a retainer (242) for supporting the initiator (240) on the closure cap (56). The closure cap (56) and the retainer (242) have metal surface portions (220,286,290) which extend circumferentially around an axis (40,172) and which are pressed radially against each other to form a seal (332) for blocking gas from exiting the housing (50) between the retainer (242) and the closure cap (56). The metal surface portions (286,290) of the retainer (242) include a cylindrical surface (286) and a frusto-conical surface (290). The frusto-conical surface (290) extends radially inward from the cylindrical surface (286) and is inclined at an angle (A1) from a plane (292) perpendicular to the axis (40). The angle (A1) is within the range of approximately 20.degree. to approximately 40.degree..

REFERENCES:
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patent: 4817828 (1989-04-01), Goetz
patent: 4890860 (1990-01-01), Schneiter
patent: 5104466 (1992-04-01), Allard et al.
patent: 5109772 (1992-05-01), Cunningham et al.
patent: 5131679 (1992-07-01), Novak et al.
patent: 5140906 (1992-08-01), Little, II
patent: 5241910 (1993-09-01), Cunningham et al.
patent: 5345875 (1994-09-01), Anderson
patent: 5356176 (1994-10-01), Wells
patent: 5380039 (1995-01-01), Emery et al.

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