US PATENT SUBCLASS 165 / 140
THREE NON-COMMUNICATING FLUIDS

Current as of: June, 1999
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165 /   HD   HEAT EXCHANGE

140THREE NON-COMMUNICATING FLUIDS {1}
141  DF  .~> Concentric flow chambers

DEFINITION

Classification: 165/140

(under the class definition) Apparatus holding three or more noncommunicating fluids in heat exchanging relationship.

SEE OR SEARCH THIS CLASS, SUBCLASS:

104.11+, for means utilizing a sealed or recycling body of fluent to transfer heat between two other materials.