US PATENT SUBCLASS 159 / 47.1
PROCESSES


Current as of: June, 1999
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159 /   HD   CONCENTRATING EVAPORATORS

47.1PROCESSES {4}
47.2  DF  .~> Involving urea
47.3  DF  .~> Involving waste liquid
48.1  DF  .~> Spraying {1}
49  DF  .~> Film


DEFINITION

Classification: 159/47.1

PROCESSES:

(under the class definition) Subject matter relating to methods of concentration.

SEE OR SEARCH CLASS

23, Chemistry: Physical Processes,

295+, for processes of concentration by evaporation combined with significant crystallization.

127, Sugar, Starch, and Carbohydrates,

61+, for a concentration process peculiar to sugar.

210, Liquid Purification or Separation,

774+, for a process of separating combined with heating or cooling. 424, Drug, Bio-Affecting and Body Treating Compositions, appropriate subclasses for a process for producing a concentrate composition of that class; e.g., concentrating animal extracts such as fish liver oils to obtain a vitamin composition, etc.

426, Food or Edible Material: Processes, Compositions, and Products, appropriate subclasses for a food working operation combined with the step concentrating.