US PATENT SUBCLASS 210 / 109
.~ Discharge of treated material

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

97  DF  FLOW, FLUID PRESSURE OR MATERIAL LEVEL, RESPONSIVE {14}
109.~ Discharge of treated material {5}
110  DF  .~.~> With separator inlet control
111  DF  .~.~> Responsive to prefilt accumulation or filter clogging
112  DF  .~.~> Heavier constituent {3}
116  DF  .~.~> Permitted by filtrate accumulation
117  DF  .~.~> Check valve controlled {2}

DEFINITION

Classification: 210/109

(under subclass 97) Apparatus which controls a treated material discharge outlet.

SEE OR SEARCH CLASS

137, Fluid Handling,

395+, for liquid level responsive outlet controls for tanks of general utility, and subclasses 577+ for fluid handling tanks of general utility having adjustable outlets, especially subclass 578 for float supported outlets.