Hybrid gasket

Details Hybrid gasket Hybrid gasket

1997-09-23

2000-07-25

Knight, Anthony

Seal for a joint or juncture

Seal between fixed parts or static contact against...

Contact seal for a pipe, conduit, or cable

277652, 277938, 277946, F16J 1512

Patent

active

060928115

ABSTRACT:
A hybrid gasket includes a core defining an aperture therein, the core having an outer edge portion and an inner edge portion immediately surrounding the aperture. The gasket further includes a chemically resistant material encapsulating the inner edge portion, and an expanded graphite material encapsulating the outer edge portion. A method of sealing two substantially parallel surfaces includes the steps of interposing between the surfaces a gasket, and securing the surfaces to one another. The gasket including a core defining an aperture therein, the core having an outer edge portion and an inner edge portion immediately surrounding the aperture. The gasket further including a chemically resistant material encapsulating the inner edge portion and an expanded graphite material encapsulating the outer edge portion. A method of forming a gasket includes the steps of providing a core defining an aperture therein, the core having an outer edge portion and an inner edge portion immediately surrounding the aperture, encapsulating the outer edge portion with an expanded graphite material, and encapsulating the inner edge portion with a chemically resistant material.

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