Valve seal and method of installing a valve seal

Details Valve seal and method of installing a valve seal Valve seal and method of installing a valve seal

2007-02-27

2008-07-22

Fristoe, Jr., John K. (Department: 3753)

Valves and valve actuation

Rotary valves

Butterfly

C277S641000

Reexamination Certificate

active

07401763

ABSTRACT:
An assembly comprises a valve, a valve seal, and a piece of epoxy. The valve comprises a valve gate, a housing, and a plurality of screws. The housing comprises a fluid passageway and a groove that extends into the housing from the fluid passageway. Each of the screws extends into the groove of the housing. The valve gate is movable relative to the housing between an opened and closed position. The valve seal is positioned at least partially within the groove. The piece of epoxy surrounds at least a portion of each of the screws and has a geometry that is interlocked with the valve seal and with each of the screws in a manner securing the valve seal to each of the screws and in a manner such that the valve seal is positioned to compress against the valve gate when the valve gate is in the closed position.

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