US PATENT SUBCLASS 209 / 454
.~.~.~.~ Constant current


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



209 /   HD   CLASSIFYING, SEPARATING, AND ASSORTING SOLIDS

422  DF  STRATIFIERS {6}
*  DD  .~ With liquid treatment {3}
*  DD  .~.~ Stationary bed {3}
*  DD  .~.~.~ Permeable {2}
454.~.~.~.~ Constant current


DEFINITION

Classification: 209/454

(under subclass 422) Apparatus including stationary

perforated or permeable supports to which material is delivered and through which constant currents of liquid are sent so that the heaviest constituents of the material may settle as a stratum while the lighter either form overlying strata or are carried away by the liquid.

SEE OR SEARCH CLASS

210, Liquid Purification or Separation, appropriate subclasses, particularly

162, for fixed strainers in a flume stream, and subclasses 409+ for fluid cleaning of fixed strainers.