US PATENT SUBCLASS 208 / 360-- .~.~ Filming

US PATENT SUBCLASS 208 / 360
.~.~ Filming

Current as of: June, 1999
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208 /	HD	MINERAL OILS: PROCESSES AND PRODUCTS

308	DF	FRACTIONATION {5}
347	DF	.~ Distillation {12}
360		.~.~ Filming

DEFINITION

Classification: 208/360

(under subclass 347) Processes wherein the distilland is introduced into the vaporization zone by spreading it as a thin film over a surface.

SEE OR SEARCH CLASS

196, Mineral Oils: Apparatus,

128, for mineral oil vaporizing apparatus having means to spread the oil as a film into the vaporizing zone.

202, Distillation: Apparatus,

236, for distillation apparatus having means to spread the feed in the form of a film.

203, Distillation: Processes, Separatory,

72, and 89 for a distillation process of spreading the distilland as a thin film over a surface.