US PATENT SUBCLASS 210 / 212
.~.~.~ With stationary casing closure feature

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

198.1  DF  WITH MEANS TO ADD TREATING MATERIAL {5}
209  DF  .~ Directly applied to separator {5}
210  DF  .~.~ To interior of moving filter, e.g., drum {5}
212.~.~.~ With stationary casing closure feature

DEFINITION

Classification: 210/212

(under subclass 210) Apparatus in which the filtering rotor is enclosed in a casing having a closure and means attached to or projecting through the closure for feeding treating material to the rotor.