Metal gasket with locally heated-treating bead

Details Metal gasket with locally heated-treating bead Metal gasket with locally heated-treating bead

1997-04-24

1999-05-25

Brittain, James R.

Seal for a joint or juncture

Seal between fixed parts or static contact against...

Contact seal between parts of internal combustion engine

277593, F02F 1100

Patent

active

059063769

ABSTRACT:
A metal gasket for an internal combustion engine is formed of a metal plate, and includes a bead formed on the metal plate. The bead has a hardness at least partly different from that of the metal plate by heating the bead locally and then cooling the same. Accordingly, the surface pressure of the bead when the gasket is tightened can be adjusted as desired.

REFERENCES:
patent: 4834399 (1989-05-01), Udagawa et al.
patent: 5344165 (1994-09-01), Miyaoh et al.
patent: 5536024 (1996-07-01), Udagawa
patent: 5639101 (1997-06-01), Tanaka et al.
patent: 5669614 (1997-09-01), Udagawa

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