US PATENT SUBCLASS 165 / 88
.~ Rotor carrying separate chambers for two exchanging fluents

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

86  DF  MOVABLE HEATING OR COOLING SURFACE {4}
88.~ Rotor carrying separate chambers for two exchanging fluents

DEFINITION

Classification: 165/88

(under subclass 86) Apparatus including a rotatable device having within it separate flow paths for exchanging fluent materials.

SEE OR SEARCH CLASS

34, Drying and Gas or Vapor Contact With Solids,

130+, for a rotary drum drier with gas or vapor flow, and treated material flow, and heating means.