Valve

Details Valve Valve

1985-07-18

1987-07-14

Cohan, Alan

Valves and valve actuation

With means to increase head and seat contact pressure

With positive reduction

251167, 251251, 251302, F16K 2500

Patent

active

046797688

ABSTRACT:
A valve for connection in a pipeline or duct for the conveyance of a fluent medium includes a valve plate which is movable laterally relative to the duct between respective open and closed positions, with resilient sealing means provided on or in association with the valve plate. The sealing means is provided on an axially movable member to engage one face of the valve plate, while the opposed sealing means is carried by a fixed end member so that the valve plate is clamped between them. Either of the sealing means may be omitted. A ram actuates the valve plate by rotation of a shaft while simultaneously rotating a control ring forming part of the control mechanism which moves the member axially to clamp and release the valve plate.

REFERENCES:
patent: 1692496 (1928-11-01), Frob
patent: 3109457 (1963-11-01), Oliveau
patent: 3249117 (1966-05-01), Edwarde
patent: 3557822 (1971-01-01), Chronister
patent: 3904171 (1975-09-01), Chronister et al.
patent: 4509717 (1985-04-01), Wright et al.

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