Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
277235B, F16J 1512
A head gasket sealing assembly having a two-stage seal ring positioned to sealingly circumscribe each said combustion opening, each seal ring defining a pair of annular sections which are integrally formed, one of which lies radially inwardly of the other, one section being readily deformable and compressible and having a vertical dimension greater than that of the second section and providing an initial compressible seal, the second section being less readily deformable and compressible in use and providing a secondary seal and resistance to thermal push in use.
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Cummings Scott W.
Will Thomas B.
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