US PATENT SUBCLASS 210 / 284
.~ Spaced beds

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}
284.~ Spaced beds

DEFINITION

Classification: 210/284

(under subclass 263) Apparatus which comprises a plurality of beds of particulate material which are spaced from each other.

SEE OR SEARCH THIS CLASS, SUBCLASS:

266, for spaced particulate and nonparticulate type separators.

283, for a pervious separator which contacts and is between beds.

314+, for spaced diverse filters.