US PATENT SUBCLASS 210 / 407
.~ With residue removing means or agitation of liquid

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

348  DF  FILTER {25}
407.~ With residue removing means or agitation of liquid {3}
408  DF  .~.~> Diverse, e.g., combined agitators, scrapers, aeration blowback
409  DF  .~.~> Fluid cleaning {2}
413  DF  .~.~> Fixed filter medium and movable stirrer or cleaner {2}

DEFINITION

Classification: 210/407

(under subclass 348) Apparatus having means for removing residue from the filter medium or for agitating either the prefilt or filtrate.

SEE OR SEARCH THIS CLASS, SUBCLASS:

106+, for automatic filter cleaning.

159, for means to remove residue from a cleaner for a flume stream strainer.

179, for a mechanical agitator in a heat exchanger.

208, for a mechanical agitator in a reactor tank.

219, for a mechanical agitator and means to add treating material. 225, for similar structure in a sectional chamber press filter.

251, for means for cleaning the outer casing of a separator.

269+, for rehabilitation means for a particulate bed separator.

298, for diverse separators having residue removing means.

319, for diverse separators having agitating means.

332+, for plural separators with residue removal.

353, for a filter with free cleaning means.

345+, for movement of the medium, cleaner or agitator by fluid.

791, for processes of rehabilitating filter mediums.