Metal gasket

Details Metal gasket Metal gasket

1991-06-25

1992-11-10

Will, Thomas B.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277231, 277234, 277236, F16J 1508

Patent

active

051618095

ABSTRACT:
A metal gasket includes plural functional layers formed with embossments along peripheral edges of cylinder openings thereof and a backup plate not formed with any embossment and sandwiched between the functional layers. At least one edge plate is provided which is spaced radially within and is coplanar with peripheral edges of cylinder openings of the backup plate. The edge plate is different in thickness from, generally thinner than, the backup plate. Grommets are provided to fasten together the edge plate and portions of the functional layers overlapping the edge plate. With this arrangement, by selecting thicknesses of the edge plate and the backup plate so as to be different between them by a requisite value, surface pressure at peripheral edges of cylinder openings of the metal gasket can be set a desired value. Therefore, this metal gasket is superior in sealing performance and uniformity.

REFERENCES:
patent: 4335890 (1982-06-01), Nicholson
patent: 4468044 (1984-08-01), Ulmer et al.
patent: 4759585 (1988-07-01), Udagawa
patent: 4767124 (1988-08-01), Udagawa
patent: 4776073 (1988-10-01), Udagawa

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