Metal gasket with coating layer

Details Metal gasket with coating layer Metal gasket with coating layer

1996-09-30

1997-12-09

DePumpo, Daniel G.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277235A, F16J 1506

Patent

active

056952031

ABSTRACT:
A metal gasket of the invention is used for an internal combustion engine, and is basically formed of a metal plate for constituting the gasket. The metal plate includes a hole and a bead around the hole for sealing therearound. A first coating layer is formed on at least a part of an upper surface of the metal plate except an upper portion of the bead. Thus, when the gasket is used, reduction of a surface pressure formed on the bead is prevented while fluid flowing through the hole is prevented by the bead and the first coating layer. The metal plate may be combined with one or more metal plates to constitute a metal laminate gasket.

REFERENCES:
patent: 4834399 (1989-05-01), Udagawa et al.
patent: 5197747 (1993-03-01), Ueda et al.
patent: 5297807 (1994-03-01), Udagawa
patent: 5431418 (1995-07-01), Hagiwara et al.

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