Fluid handling – With cleaner – lubrication added to fluid or liquid sealing... – Cleaning or steam sterilizing
Patent
1987-10-15
1988-05-24
Walton, George L.
Fluid handling
With cleaner, lubrication added to fluid or liquid sealing...
Cleaning or steam sterilizing
134166C, 251177, 251214, 251301, 277110, 277111, 277112, B08B 300, B08B 906, F16K 118
Patent
active
047459441
ABSTRACT:
A drive shaft mounted for rotation about its axis within a gate valve casing terminates, internally within a valve chamber, in a radial arm which couples to a valve disk. The disk seats on the valve casing and is movable between an overlying position relative to an outlet part and an angularly displaced position such that the outlet port is wholly uncovered. A valve inlet port is aligned with the shaft, on the opposite side of the radial arm and the shaft is extended by a hollow, open frame cylindrical cage which terminates in a ring rotably mounted to the valve casing about the inlet port. The cage ring is connected to the bottom of the arm in line with the shaft via multiple, circumferentially spaced, feed fins forming radial windows permitting the inlet flow to be deflected radially with the shaft dissipating the force of the incoming fluid. The feed fins purge the valve chamber when rotating during valve opening and closing. A bushing rotatably supporting the cage acts in conjunction with other annular bushings concentrically mounted about the periphery of the drive shaft for maintaining alignment of the shaft cage and arm and resisting deflection of the shaft of the valve actuator assembly during valve opening and closing.
REFERENCES:
patent: 10557 (1885-02-01), Lunkenheimer
patent: 1991006 (1935-02-01), Wilson
patent: 2097943 (1937-11-01), Zagorski
patent: 2443929 (1948-06-01), Patterson
patent: 2991794 (1961-07-01), Harrower
patent: 3442285 (1965-05-01), Faustin
patent: 3916943 (1975-11-01), Hester
patent: 4274432 (1981-06-01), Tunstall et al.
patent: 4455864 (1984-06-01), Wallner
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