US PATENT SUBCLASS 422 / 256
.~.~ Liquid-liquid contact means

Current as of: June, 1999
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422 /   HD   CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING

243  DF  PHYSICAL TYPE APPARATUS {8}
255  DF  .~ Means separating or dissolving a material constituent {3}
256.~.~ Liquid-liquid contact means {3}
257  DF  .~.~.~> Including pulsator, adjustable plates, or plural inlets; e.g., spraying, etc.
258  DF  .~.~.~> Including rotating chamber or rotating member within chamber; e.g., mixer-settler, etc. {1}
260  DF  .~.~.~> Including heating and cooling means

DEFINITION

Classification: 422/256

Liquid-liquid contact means:

(under subclass 255) Apparatus comprising liquid-liquid contact means for removing a constituent from a liquid.

SEE OR SEARCH CLASS

196, Mineral Oils: Apparatus, appropriate subclasses, especially

14.52, for apparatus limited to the extraction of mineral oils.

210, Liquid Purification or Separation,

198.1+, for apparatus for purifying liquid with means to add a treating material.