US PATENT SUBCLASS 165 / 74
.~.~ Heat exchanging means projects into the covered chamber

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

72  DF  COVERED ACCESS OPENING {2}
73  DF  .~ Cover is, or carries, heat exchanging means {1}
74.~.~ Heat exchanging means projects into the covered chamber

DEFINITION

Classification: 165/74

(under subclass 73) Apparatus in which the heat exchange means extends inwardly from the access opening and provides an exchange surface within the receptacle.

SEE OR SEARCH CLASS

313, Electric Lamp and Discharge Devices,

17+, for an electric lamp or discharge device projecting into a temperature modifying jacket.