US PATENT SUBCLASS 165 / 125
.~.~.~.~ Radial flow through annular heating or cooling means

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

120  DF  WITH IMPELLER OR CONVEYOR MOVING EXCHANGE MATERIAL {1}
121  DF  .~ Mechanical gas pump {1}
122  DF  .~.~ Heating or cooling means and gas pump in housing {2}
124  DF  .~.~.~ Verging gas flow {2}
125.~.~.~.~ Radial flow through annular heating or cooling means

DEFINITION

Classification: 165/125

(under subclass 124) Apparatus including a temperature modifier of annular form having radially extending gas passages.