US PATENT SUBCLASS 204 / 660
.~ Apparatus for electrical (including simultaneous electrical and magnetic) separation or purification of liquid or magnetic treatment of liquid (other than separation)

Current as of: June, 1999
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204 /   HD   CHEMISTRY: ELECTRICAL AND WAVE ENERGY

193  DF  APPARATUS {5}
660.~ Apparatus for electrical (including simultaneous electrical and magnetic) separation or purification of liquid or magnetic treatment of liquid (other than separation) {10}
661  DF  .~.~> With control means responsive to sensed condition {1}
663  DF  .~.~> With programmed, cyclic, or time responsive control means
664  DF  .~.~> With magnetic separating means
665  DF  .~.~> With filter (e.g., electrostatic filter, etc.)
666  DF  .~.~> Plural separate treatment chambers or zones
667  DF  .~.~> Probe type
668  DF  .~.~> With moving or movable electrode {1}
670  DF  .~.~> Concentric electrodes {1}
672  DF  .~.~> Parallel plate-type electrodes {1}
674  DF  .~.~> Porous, perforated, or grid electrode

DEFINITION

Classification: 204/660

Apparatus for electrical (including simultaneous electrical and magnetic) separation or purification of liquid or magnetic treatment of liquid (other than separation):

(under subclass 193) Apparatus specialized for (a) electrical (including simultaneous electrical and magnetic) separation or purification of liquid or (b) magnetic treatment, per se, when some effect other than separation is desired or produced.

(1) Note. This subclass and the subclasses indented hereunder primarily provide for electrostatic separators designed to treat liquid.

SEE OR SEARCH THIS CLASS, SUBCLASS:

194+, for electrolytic apparatus.

554+, for corresponding processes.

600+, for electrophoretic or electro-osmotic apparatus.

SEE OR SEARCH CLASS

96, Gas Separation: Apparatus, 15+, for electric field separation apparatus used to separate gaseous mixtures without involving chemical reaction to convert one or more constituents to other compounds (including degasifying means for liquid), but and apparatus for simultaneous or sequential combinations of electrical degasification of a liquid with a Class 204 type electrical separation of a liquid is provided for in Class 204. (This remains true for placement of apparatus used to perform such combined processes regardless of whether a chemical reaction is or is not involved).

196, Mineral Oils: Apparatus, for apparatus to treat or separate mineral oil by more than mere physical separation (provided for in Class 210,

767+, ) with or without means to apply electrical or wave energy as long as such means is only used to heat the mineral oil under treatment.

210, Liquid Purification or Separation, appropriate subclasses for apparatus used to perform general purification or separation of a liquid, especially water or waste water, utilizing electrical or wave energy (except the type provided for in Class 204 unless (1) the Class 204 type apparatus is merely used to produce a reagent employed in a process otherwise provided for in Class 210 above

767+, (e.g., electrolytic production of free chlorine in salt water which is employed to sterilize the salt water under treatment, etc.) or (2) the 204 type apparatus includes means to perform at least one separate step provided for in Class 210 above subclasses 767+ and except for general chemical apparatus (as provided for in Class 422) to treat a medium other than liquid water or waste water). Also, see the line note drawn to Class 196 above for other apparatus used to resolve oil and water emulsions or dispersions.

399, Electrophotography,

250, for liquid carrier condensation of liquid developer material within an electrophotos:graphic device.

422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing, for general chemical treatment apparatus including that used to sterilize or disinfect without involving electrolysis, electrophoresis, or electro-osmosis; especially

127+, for apparatus having means to initiate or perfect a process using shock or sound waves and subclasses 186+ for apparatus having means for initiating or perfecting a chemical reaction using electromagnetic wave energy or corpuscular radiation.

435, Chemistry: Molecular Biology and Microbiology, for a process or apparatus involving measuring or testing by electrical or wave energy which is separate and apart, but in combination with a process or apparatus for use with a viable micro-organism or a catalytically active enzyme; and for a process or apparatus involving electrical or wave energy treatment of a micro-organism or an enzyme when the treatment is solely disclosed for use with a viable micro-organism or a catalytically active enzyme.