US PATENT SUBCLASS 210 / 358
.~ Imperforate drum, medium on arc, chord or end

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

348  DF  FILTER {25}
358.~ Imperforate drum, medium on arc, chord or end

DEFINITION

Classification: 210/358

(under subclass 348) Apparatus in which there is an imperforate drum having a filter element extending across a segment, covering an arc, or covering either or both end walls of the drum.

SEE OR SEARCH THIS CLASS, SUBCLASS:

399, for another type of movable sealed casing enclosing a filter medium.