US PATENT SUBCLASS 203 / 89
FILMING OF DISTILLAND FOR VAPORIZATION


Current as of: June, 1999
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203 /   HD   DISTILLATION: PROCESSES, SEPARATORY

89FILMING OF DISTILLAND FOR VAPORIZATION


DEFINITION

Classification: 203/89

(under the class definition) Processes directed to introducing the distilland into the vaporization zone by spreading it as a thin film over a surface.

(1) Note. The surface on which the distilland is spread may be liquid, solid or foraminous.

SEE OR SEARCH CLASS

159, Concentrating Evaporators,

5+, for concentrating apparatus of the film type including subclasses 13+ for evaporating apparatus designed to maintain the liquid being evaporated in a film and subclass 49 for an evaporating process in which the liquid to be concentrated is spread in a thin film.

196, Mineral Oils: Apparatus,

128, for vaporizing apparatus for distilling mineral oil in a thin film. 202, Distillation: Apparatus,

236, for separatory distillation apparatus in which the still has means for intro- ducing the distilland into the still in the form of a spray or in the form of a film.

208, Mineral Oils: Processes and Products,

360, for a process of introducing mineral oil into the vaporization zone by spreading it as a thin film over a surface. See also "SEARCH CLASS" thereunder for related fields of search.