Gas supply tube and method of making same

Details Gas supply tube and method of making same Gas supply tube and method of making same

2007-08-14

2007-08-14

Hewitt, James M. (Department: 3679)

Metal deforming

Process

Tube making or reshaping

C072S370030, C072S370040, C072S370060, C072S370080, C029S890149

Reexamination Certificate

active

10834393

ABSTRACT:
A metal gas-feed tube for a head air bag automotive vehicle has a sleeve formed on a bent end thereof to fit onto a connecting fitting of a gas generator. That sleeve is formed in part from an unbent region of the tube by pressing a mandrel into the end of the tube which lies outside a die so that the rear end of the sleeve is formed from a bent portion while the free end is not subjected to bending deformation in the production of the bend.

REFERENCES:
patent: 1993361 (1935-03-01), Cornell, Jr.
patent: 2057038 (1936-10-01), Lindquist et al.
patent: 2078195 (1937-04-01), Cornell, Jr.
patent: 2183271 (1939-12-01), Wendel
patent: 2831523 (1958-04-01), Wurzburger
patent: 3303680 (1967-02-01), Thielsch
patent: 5956988 (1999-09-01), Beste et al.
patent: 6318754 (2001-11-01), Einsiedel
patent: 6530256 (2003-03-01), Irie et al.
patent: 6631923 (2003-10-01), Eckert
patent: 6843096 (2005-01-01), Viegener et al.

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