US PATENT SUBCLASS 204 / 557
.~.~ Using magnetic field

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

*  DD  PROCESSES AND PRODUCTS {7}
554  DF  .~ Electrical (including simultaneous electrical and magnetic) separation or purification of liquid or magnetic treatment of liquid (other than separation) {7}
557.~.~ Using magnetic field

DEFINITION

Classification: 204/557

Using magnetic field:

(under subclass 554) Process in which magnetic lines of force are used to separate a constituent, to aid the separation of a constituent from a liquid, or to treat a liquid without resulting in separation or purification.

(1) Note. This subclass provides for (a) simultaneous electrical and magnetic separation processes and (b) magnetic treatment, per se, when some effect other than mere separation is desired or produced.

SEE OR SEARCH THIS CLASS, SUBCLASS:

155+, for processes of producing compounds or elements by chemical reaction brought about by electrical or wave energy in a magnetic field; except processes involving electrolysis or in which chemical reaction is brought about by the mere heating effect of electrical or wave energy.

664, for corresponding apparatus.

SEE OR SEARCH CLASS

95, Gas Separation: Processes,

27, and 28 for magnetic separation of gaseous mixtures without involving chemical reaction to convert one or more constituents to other compounds.

210, Liquid Purification or Separation,

695, for magnetic separation of a liquid, per se, or combined with a separate step of electrical separation.