Metal gasket
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United States of America Patent
Stats
-
Nov 12, 2002
Grant Date -
Jul 5, 2001
app pub date -
Dec 19, 2000
filing date -
Dec 22, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A metal gasket is described which has a structure with no beads so that the need for dies used for molding is eliminated, thereby facilitating the processing of the gasket and achieving good cost performance, and which is excellent in sealing ability. The metal gasket comprises (i) an elastic metal plate having a base and folded-back portions each of which is formed so as to create a clearance together with the base and disposed so as to extend around a bore hole and (ii) a metal plate which is thicker than the elastic metal plate and has lower level portions each of which is located at a position closed to each bore hole, and the elastic metal plate and the metal plate are laminated such that each folded-back portion of the elastic metal plate faces the lower level portion of the metal plate.
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