(under the class definition) Processes directed to distilling in a system in which all or a part thereof is recited as being made of a specific material.
(1) Note. Processes within the purview of this subclass must recite only a single distillation step in which the composition of the system or a part thereof is recited. For example, broadly distilling using a glass column.
(2) Note. The mere recitation in a claim that an apparatus is metal does not bring it within the purview of this subclass, but the recitation in the claim that the column filling material is chrome steel balls or beryl saddles does.
SEE OR SEARCH THIS CLASS, SUBCLASS:
6+, for a process of adding a material to inhibit or prevent chemical change which may or may not function to coat the system.
SEE OR SEARCH CLASS
55, Gas Separation, 522+, for gas separation apparatus in which the composition of the apparatus is recited.
106, Compositions: Coating or Plastic, appropriate subclass for a composition for coating the surfaces of the distilling apparatus.
196, Mineral Oils: Apparatus,
133, for a mineral oil vaporizing system having some special feature of construction.
201, Distillation: Processes, Thermolytic,
18, for a process of destructive distillation utilizing apparatus of a particular composition.
202, Distillation: Apparatus,
267, in which the apparatus is recited in terms of the
materials of construction.
266, Metallurgical Apparatus,
280+, for the lining construction for metallurgical receptacles.
520, Synthetic Resins or Natural Rubbers, 1+, for a synthetic resin or a composition containing a synthetic resin for coating distilling apparatus.
