US PATENT SUBCLASS 165 / 146
GRADATED HEAT TRANSFER STRUCTURE

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

146GRADATED HEAT TRANSFER STRUCTURE {1}
147  DF  .~> Tapered conduit means

DEFINITION

Classification: 165/146

(under the class definition) Apparatus including structure which provides a progressive amount of heat transfer along a flow path by providing graduated surface areas, or conductivities along the flow path in the direction of flow.