US PATENT SUBCLASS 196 / 14.52
Current as of: June, 1999
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(under the class definition) Apparatus especially adapted for the solvent extraction of mineral oils.
(1) Note. The apparatus classified herein is adapted to the separation of mineral oils of natural origin into its component fractions as well as the separation of undesirable nonmineral oil components from mineral oils by use of solvents.
SEE OR SEARCH THIS CLASS, SUBCLASS:
14.52, for apparatus for dewaxing mineral oils which may be by solvent extraction.
46, for apparatus for refining mineral oils by reacting with chemicals to separate nonmineral oil components therefrom.
SEE OR SEARCH CLASS
208, Mineral Oils: Processes and Products, 311, for processes of extracting mineral oils with solvents.
422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing,
255+, for extraction apparatus in general.