Low creep polytetrafluoroethylene gasketing element

Seal for a joint or juncture – Seal between fixed parts or static contact against... – Contact seal for other than internal combustion engine – or...

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Details

277946, F16J 1510

Patent

active

060895764

ABSTRACT:
The present invention is an improved gasket for use in a wide variety of sealing applications. The gasket comprises a sheet of expanded polytetrafluoroethylene (PTFE) that is helically wrapped around itself and sealed in that orientation. This construction produces a gasket that has significant tensile strength in both its longitudinal and transverse axes. As such, the gasket of the present invention retains all of the operational advantages of PTFE while being quite resistant to creep.

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Literature: Industrial Sealants, GORE-TEX(R) Valve Stem Packing, 1989, W.L. Gore & Associates, Inc.
Literature: INERTEX(TM) Valve Stem Packing, (Author unknown) (Date unknown).
Literature: GORE-TEX(R) Joint Sealant, W. L. Gore & Associates, Inc., 1992.

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