Patent ID: 6708983
Filing Date: 2004-03-23
Classification: F16J,F16L

Abstract:
A gasket comprising a plurality of a profiled metal strip spirally wound upon itself around a central axis, a plurality of windings of a strip of sealing material interposed between at least some of the superposed windings of the metal strip to provide a composite metal and sealing strip annulus, and an outer-most ring of exposed sealing material having axially opposite exposed sealing surfaces and being fabricated throughout the thickness of said outer-most ring of the same material as that of the strip of sealing material secured to said annulus in co-planar, concentric relationship therewith, wherein said metal strip has two or more radially innermost windings on the inside diameter thereof which are in surface-to-surface contact with each other without interposed sealing material wherein said metal strip being profiled to provide a grooved configuration along its length with a concave side of the grooved configuration facing radially outwardly, and wherein the outer-most ring extends into said concave side of the metal strip at the interface of the outer-most ring and the metal strip to mechanically lock the outer-most ring on the annulus.