Gate valve

Details Gate valve Gate valve

1977-12-08

1979-03-27

Weakley, Harold W.

Valves and valve actuation

With means to increase head and seat contact pressure

With positive reduction

251196, 251197, F16K 2500

Patent

active

041462092

ABSTRACT:
A through conduit gate valve having a carrier frame shiftable vertically in a valve chamber with gates mounted in the carrier frame as to be shiftable vertically in the carrier frame and as to be shiftable away from each other in the carrier frame. Means are provided on the carrier frame and on the gates to shift the gates toward valve seats and away from each other when the carrier frame is in the open and closed positions and to permit the gates to shift toward each other when the carrier frame is being shifted between its open and closed positions.

REFERENCES:
patent: 2502689 (1950-04-01), Yant
patent: 2653789 (1953-09-01), Eichenberg
patent: 2826391 (1958-03-01), Bredtschneider
patent: 2876986 (1959-03-01), Knox
patent: 3349789 (1967-10-01), Crain
patent: 3434692 (1969-03-01), Tillman

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