(under subclass 18) Processes in which the gas or vapor is applied to effect a separation or classification of the material.
(1) Note. See SEPARATION OF MATERIAL and Lines With Other Classes of the class definition of this class for a statement relative to related art and the lines followed with other classes.
(2) Note. See Suspensions and Colloids under the Class Definition of this class for a statement relative to related art and the lines with other classes as to the formation of suspension or colloids by comminution.
SEE OR SEARCH THIS CLASS, SUBCLASS:
9+, for similar processes applied to cereals or other seeds.
38+, for apparatus including means to apply a gas or vapor to effect a separation of the material.
SEE OR SEARCH CLASS 209, Classifying, Separating, and Assorting Solids,
appropriate subclasses, especially
133+, and the notes thereto, for processes and apparatus for separating or classifying material through the use of a gas or vapor.
