US PATENT SUBCLASS 165 / 104.29
.~.~.~ Utilizing formed bubble

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

104.11  DF  INTERMEDIATE FLUENT HEAT EXCHANGE MATERIAL RECEIVING AND DISCHARGING HEAT {5}
104.19  DF  .~ Liquid fluent heat exchange material {4}
104.28  DF  .~.~ Including means to move heat exchange material {2}
104.29.~.~.~ Utilizing formed bubble

DEFINITION

Classification: 165/104.29

Utilizing formed bubble:

(under subclass 104.28) Apparatus wherein vapor lighter than other portions of the material rises through the apparatus to carry liquid material along.