US PATENT SUBCLASS 210 / 264
.~ Selective units or compartments

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

263  DF  PARTICULATE MATERIAL TYPE SEPARATOR, E.G., ION EXCHANGE OR SAND BED {13}
264.~ Selective units or compartments

DEFINITION

Classification: 210/264

(under subclass 263) Apparatus comprising a plurality of compartments, and means for using and/or rehabilitating the particles in each compartment selectively.

SEE OR SEARCH THIS CLASS, SUBCLASS:

102, for programming of plural units by means responsive to flow, fluid pressure or material level responsive means.

142, for program actuated sequentially controlled plural units or sections.