US PATENT SUBCLASS 210 / 455
.~ Receptacle and modified spacing surface or support for filter medium

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

348  DF  FILTER {25}
455.~ Receptacle and modified spacing surface or support for filter medium

DEFINITION

Classification: 210/455

(under subclass 348) Apparatus comprising (1) a supporting receptacle for a filter medium an inner surface of which is modified as by grooves or ribs, or (2) a separate spacing member engaging the inner surface of the receptacle.

SEE OR SEARCH THIS CLASS, SUBCLASS:

224+, particularly subclass 231 for a sectional chamber press filter.

283, for a pervious divider in a particulate bed separator.