US PATENT SUBCLASS 210 / 193
WITH PRECOAT ADDING OR APPLYING MEANS


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

193WITH PRECOAT ADDING OR APPLYING MEANS


DEFINITION

Classification: 210/193

(under the class definition) Apparatus with means to apply an additional solid material usually discrete particles, as a coating to a filtering medium, the additional material then acting as a primary filtering medium.

SEE OR SEARCH THIS CLASS, SUBCLASS:

503+, for diverse granular or fibrous filter materials.

506+, for a coated or impregnated filter material.

777+, for separating processes including use of a filter aid.