Fluid handling – Processes – Cleaning – repairing – or assembling
Patent
1985-11-14
1987-05-19
Walton, George L.
Fluid handling
Processes
Cleaning, repairing, or assembling
137315, 251214, 251315, 251316, 251317, F16K 4300, F16K 4100, F16K 114
Patent
active
046659374
ABSTRACT:
An improved ball valve and method for assembling same having a main valve body with an axially extending throughbore for the passage of fluids therethrough. A ball having a throughbore is mounted in the valve body passageway and rotatable therein from a first position aligning the throughbore through the ball with the throughbore through the valve body permitting fluids to pass through the aligned throughbores, to a second position wherein the body of the ball seals off the throughbore through the valve body stopping passage of fluid therethrough. The ball is rotatable by a stem keyed to the ball having a shaft extending out of an opening in the valve body, the axis of the opening being normal to the axis of the throughbore through the valve body. The inner wall of the valve body includes an interrupted boss thereon receiving in the opening of the boss a stem retaining member which encircles the stem between the engagement of the stem with the ball and the inner wall of the valve body to retain the stem in operative position in the ball assembly while compressing and guiding an O-ring on the stem so that the O-ring seals off fluids inside the valve body from the exterior thereof.
REFERENCES:
patent: 3228652 (1966-01-01), Antrim
patent: 3323542 (1967-06-01), Magos et al.
patent: 3486736 (1969-12-01), Scaramucci
patent: 3636972 (1972-01-01), Scaramucci
patent: 3912221 (1975-10-01), Ferster et al.
patent: 4423749 (1984-01-01), Schmitt
patent: 4558874 (1985-12-01), Williams et al.
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