US PATENT SUBCLASS 210 / 229
.~.~ Imperforate base recess in plate


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

224  DF  SECTIONAL CHAMBER PRESS TYPE {5}
227  DF  .~ Medium clamped in joint {2}
229.~.~ Imperforate base recess in plate


DEFINITION

Classification: 210/229

(under subclass 227) Apparatus in which the filter sections are of I or channel cross-section forming a recess, the web of which is imperforate except for filtrate drain openings, and the filter medium abuts the web within the recess.

SEE OR SEARCH THIS CLASS, SUBCLASS:

455, for modified spacing surfaces or supports for a filter medium.