Air bag inflator and method of manufacture thereof

Details Air bag inflator and method of manufacture thereof Air bag inflator and method of manufacture thereof

B - Operations, Transporting

60

R

B60R 21/26 (2006.01) B01D 46/24 (2006.01)

Patent

CA 2196992

An air bag inflator (10) is manufactured by sandwiching a wire mesh filter (39) between a pair of flat elongated perforate strips of steel (18 and 20), thereafter rolling the sandwiched steel strips and wire mesh concomitantly to form a right circular cylindrical tube with the edge portions (34, 36, 40 and 42) of the steel strips orientated in juxtaposed relation to one another, respectively; and welding (62) the juxtaposed edge portions of the strips by a common weld that extends radially across the edge portions of both of the steel strips.

On fabrique ce dispositif de gonflage (10) de coussin gonflable en intercalant un filtre à treillis métallique (39) entre deux bandes d'acier (18, 20) perforées, allongées et plates, puis en enroulant ensemble ces bandes d'acier entourant le treillis métallique pour former un tube cylindrique droit, les bords (34, 36, 40, 42) des bandes d'acier étant juxtaposées deux à deux. On soude (62) ensuite ces bords juxtaposés par une soudure commune placée dans le sens radial, de part et d'autre des bords des deux bandes d'acier.

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