US PATENT SUBCLASS 210 / 258
.~ With pump, gas pressure or vacuum source

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

252  DF  SERIALLY CONNECTED DISTINCT TREATING WITH OR WITHOUT STORAGE UNITS {7}
258.~ With pump, gas pressure or vacuum source

DEFINITION

Classification: 210/258

(under subclass 252) Apparatus provided with (1) a pump, (2) means to supply a gas under pressure to cause fluid flow, or (3) means for applying a vacuum to at least one of the units.

SEE OR SEARCH THIS CLASS, SUBCLASS:

406, for a filter with a vacuumized filtrate receiver.

416, for a filter with a pump, gas pressure or vacuum source.