Molded gasket and method of making

Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article

Reexamination Certificate

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Details

C277S627000, C264S251000, C264S255000, C264S257000

Reexamination Certificate

active

07731884

ABSTRACT:
The present invention is directed to an annular gasket for providing a fluid-tight seal between an inner pipe and an outer pipe, when the pipes are in a relative surrounded and surrounding relationship. The gasket includes a gasket portion configured to sealingly engage the inner and outer pipes when the pipes are in a relative surrounded and surrounding relationship. The gasket includes a low coefficient of friction surface which is applied to the gasket portion. The gasket may be formed by a method in which a low coefficient of friction film is inserted into a mold before injection of compounds used to form the gasket.

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