US PATENT SUBCLASS 210 / 767
.~ Separating

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

600  DF  PROCESSES {14}
767.~ Separating {16}
768  DF  .~.~> Including treating separated solids {3}
773  DF  .~.~> Including preliminary conversion to liquid state
774  DF  .~.~> Including temperature change {1}
776  DF  .~.~> Skimming
777  DF  .~.~> Including precoating filter medium with filter aid {1}
779  DF  .~.~> Discharging residue to prefilt
780  DF  .~.~> Including movement of filter during filtration {5}
787  DF  .~.~> Cyclonic, or centrifugal (e.g., whirling or helical motion or by vortex, etc.) {2}
790  DF  .~.~> Dividing and recombining
791  DF  .~.~> Rehabilitating or regenerating filter medium {2}
799  DF  .~.~> Filtering immiscible liquids
800  DF  .~.~> Utilizing gravitational force {3}
805  DF  .~.~> And recirculating liquid
806  DF  .~.~> Plural separating
807  DF  .~.~> Utilizing particulate bed
808  DF  .~.~> Including specified pressure change

DEFINITION

Classification: 210/767

Separating:

(under subclass 600) Process for separating one constituent of a liquid-liquid or liquid-solid mixture.

SEE OR SEARCH CLASS

127, Sugar, Starch, and Carbohydrates,

55, for a filtering process peculiar to sugar solutions.

203, Distillation: Processes, Separatory,

43, for a separatory distillation process combined with a liquid-liquid extraction operation not otherwise provided for.

208, Mineral Oils: Processes and Products,

179+, for purifying used mineral oils; and subclasses 299+ for treatment of mineral oils with solid adsorbents. See the reference to Class 208 under "SEARCH CLASS", in the class definition of this class (210).

260, Chemistry of Carbon Compounds,

704+, for physical treatment of carbon compounds.

406, Conveyors: Fluid Current, for a method of and apparatus for separating a solid or a liquid from a carrier liquid as part of fluid conveying provided for in Class 406.