US PATENT SUBCLASS 422 / 255
.~ Means separating or dissolving a material constituent

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.~ Means separating or dissolving a material constituent {3}
256  DF  .~.~> Liquid-liquid contact means {3}
261  DF  .~.~> Liquid-solid contact means {17}
285  DF  .~.~> And heating means {2}

DEFINITION

Classification: 422/255

Means separating or dissolving a material constituent:

(under subclass 243) Apparatus having means to segregate or liquefy at least one component of the matter being treated.

(1) Note. The apparatus classified here carries out a process which generally leaves an insoluble residue.

SEE OR SEARCH CLASS

34, Drying and Gas or Vapor Contact With Solids, has drying processes and apparatus which remove extraneous liquids from solids even though there is subsequent condensation or recovery of vapors and also drying processes and apparatus in which solids are contacted with liquids to promote drying.

75, Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures, appropriate subclasses for processes using nonmetallic material which is liquid under standard conditions.

100, Presses,

90, for devices for pressing combined with means for

separating materials. 127, Sugar, Starch, and Carbohydrates,

3+, for apparatus for leaching or dissolving sacchariferous material in the manufacture of sugar, starch, or carbohydrates.

134, Cleaning and Liquid Contact With Solids,

43, is the generic place for apparatus for contacting a solid with a liquid. See the definition and notes to that class.

202, Distillation: Apparatus,

168, 170 for leaching or extracting apparatus combined with distillation apparatus.

206, Special Receptacle or Package,

.5, for infusion receptacles or packages.

209, Classifying, Separating, and Assorting Solids,

155+, for fluid suspension in a liquid; and subclasses 423 to 465 for stratification involving liquid treatment which may include treatment of the solids with a liquid.

210, Liquid Purification or Separation,

177+, and 198.1+ for apparatus for liquid purification or separation which involves the addition of a treating liquid. 239, Fluid Sprinkling, Spraying, and Diffusing,

310+, for dissolvers and mixers combined with a fluid discharging element.

252, Compositions,

625+, for radioactive compositions and methods of making them involving a mere blending of materials.

266, Metallurgical Apparatus,

101, for apparatus for metallurgical leaching and precipitating; subclasses 161+ and 168+ for extracting metal apparatus.

366, Agitating, for processes and apparatus for mere agitation of a solid in a liquid.

401, Coating Implements With Material Supply,

40+, and 44+ for a coating implement having diverse materials which are mixed therein prior to application to a work surface.

426, Food or Edible Material: Processes, Compositions, and Products,

77+, for food infusion type containers, per se, or containing edible material.