Patent ID: 6502833
Filing Date: 2003-01-07
Classification: F16J,F16L,Y10S

Abstract:
A crescent-shaped metal ring gasket comprising an austenite stainless steel and having an inner surface and an outer surface, an outward projecting cross-section of said gasket defining the crescent-shape, a central plane on the inner surface of the ring gasket dividing said gasket into symmetric portions, a central axis perpendicular to the central plane and equidistant from the inner surface of said gasket, the ring gasket having a first smallest diameter relative to the central axis at the central plane, outwardly spaced edges on the inner surface of said gasket extending about the circumference of the gasket having a second diameter relative to said central axis greater than the first diameter, the thickness of said gasket between the inner and outer surfaces thereof being maximum at the central plane and decreasing at positions outwardly therefrom and finishing at the spaced edges of the crescent-shaped gasket, and said ring gasket having a superficial roughness below 0.2 &mgr;m Ra and a superficial hardness below 230 Hv.