Gaskets

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2007-04-17

2007-04-17

Patel, Vishal (Department: 3673)

Seal for a joint or juncture

Seal between fixed parts or static contact against...

Contact seal for a pipe, conduit, or cable

Reexamination Certificate

active

10181116

ABSTRACT:
A spirally wound gasket is described. The gasket includes a sealing strip (11) wound into a spiral and a support strip (10) wound into a spiral in such a manner that the spiral of the sealing strip is formed interposed between the coils of the supporting strip. The sealing strip comprises a resilient material, the resilient material comprising a CEV component in a proportion of at least 25% w/w of the sealing strip. The CEV component is at least partially derived from dry CEV, and the sealing strip does not include a carrier strip in one aspect. In another aspect, the CEV component is at least partially derived from dry CEV, and the sealing strip has a moisture level of between 3–20% w/w of the sealing strip resilient material during winding into the said gasket. A method of producing a sealing strip is also described.

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M. Dol, C. Robbe, and L. Voogd in Requirements for Asbestos Substitutes For Jointing, Packing and Sealing Materials, May 1992, Shell International Petroleum Maatschappij B.V. , The Hague.

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