US PATENT SUBCLASS 159 / 4.01
.~ Gaseous current

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

3  DF  SPRAY TYPE {1}
4.01.~ Gaseous current {12}
4.02  DF  .~.~> Combustion product gas
4.03  DF  .~.~> Antibridging
4.04  DF  .~.~> Countercurrent
4.05  DF  .~.~> Intermediate gas outlet or inlet
4.06  DF  .~.~> Bottom sprayer
4.07  DF  .~.~> Horizontial sprayer
4.08  DF  .~.~> Impinging jets
4.09  DF  .~.~> Multistaging
4.1  DF  .~.~> Heat recovery
4.2  DF  .~.~> Spinning sprayer
4.3  DF  .~.~> Rotary drum with sprayer
4.4  DF  .~.~> Steam drying or atomizing

DEFINITION

Classification: 159/4.01

Gaseous current:

(under subclass 3) Apparatus provided with means for directing a gaseous current through the spray or spray chamber.

SEE OR SEARCH CLASS

34, Drying and Gas or Vapor Contact With Solids,

359, and 576+ for proc-esses and apparatus which employ a fluid current to move the material being worked upon.

62, Refrigeration,

74, and 347 for refrigeration processes in which the raw material is sprayed or dripped.

261, Gas and Liquid Contact Apparatus,

75+, for liquids sprayed into contact with gases. 422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing,

289, for concentrating evaporator specialized to chemistry in which hot gases, etc., are contacted with liquids.