US PATENT SUBCLASS 210 / 800
.~.~ Utilizing gravitational force

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

600  DF  PROCESSES {14}
767  DF  .~ Separating {16}
800.~.~ Utilizing gravitational force {3}
801  DF  .~.~.~> Including change of mainstream flow direction {1}
803  DF  .~.~.~> Including specified feature of settled solids removal
804  DF  .~.~.~> And additional diverse separation

DEFINITION

Classification: 210/800

Utilizing gravitational force:

(under subclass 767) Process in which the liquid and solids contained therein are stratified and selectively removed by utilizing gravitational force.

SEE OR SEARCH THIS CLASS, SUBCLASS:

513+, for gravitational separation apparatus.

781+, for separation processes including centrifugal extraction.

787, for processes including whirling or helical motion.

SEE OR SEARCH CLASS

127, Sugar, Starch, and Carbohydrates, 57, for settling processes for separating impurities from sugar solutions.

209, Classifying, Separating, and Assorting Solids,

208+, for grading deposition in a liquid-type separator and related processes.