Valves and valve actuation – With means to increase head and seat contact pressure – Gate valve
Patent
1984-01-13
1985-08-13
Weakley, Harold W.
Valves and valve actuation
With means to increase head and seat contact pressure
Gate valve
251328, 251187, F16K 2500
Patent
active
045345406
ABSTRACT:
A gate valve having a casing, a seat, a gate having a tapered face made in the gate surface in the direction of its movement in the shut-off direction on the side opposite to the side facing toward the seat, a stop provided for engaging the tapered face of the gate, the stop being secured to a rod which is installed transversely of the centerline of a passage of the casing, a sleeve installed in the casing wall for rotation relative to the casing, the inner surface of the sleeve being coaxial with, and surrounding the rod, and the longitudinal centerline of the outer surface of the sleeve being eccentric with respect to the longitudinal axis of the rod.
REFERENCES:
patent: 2834571 (1958-05-01), Hollander
patent: 3164363 (1965-01-01), Williams
patent: 3272223 (1966-09-01), Sagg
patent: 3495805 (1970-02-01), Steckle
patent: 3547140 (1970-12-01), Hastings
patent: 3993285 (1976-11-01), Conley
Bragin Boris F.
Ekber Boris Y.
Gladky Petr V.
Kolomiets Alexandr S.
Korotkikh Jury B.
Voroshilovgradsky Mashinostroitelny Institut
Weakley Harold W.
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