US PATENT SUBCLASS 210 / 533
.~.~ Closure or valve controlled discharge

Current as of: June, 1999
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210 /   HD   LIQUID PURIFICATION OR SEPARATION

513  DF  GRAVITATIONAL SEPARATOR {6}
532.1  DF  .~ Heavier constituent trap, chamber, or recess {2}
533.~.~ Closure or valve controlled discharge {3}
534  DF  .~.~.~> In sloping recess {1}
536  DF  .~.~.~> In side wall of separator
537  DF  .~.~.~> With discharge means for two or more lighter constituents

DEFINITION

Classification: 210/533

(under subclass 532) Apparatus wherein the heavier constituent is discharged through a closure or valve controlled port.

SEE OR SEARCH THIS CLASS, SUBCLASS:

112+, for control by flow material level or fluid pressure responsive means.

312+, for similar structure in diverse separators.

SEE OR SEARCH CLASS

251, Valves and Valve Actuation,

144, for a valve mounted on a tank of general utility.