US PATENT SUBCLASS 60 / 641.3
.~.~ With direct fluid contact

Current as of: June, 1999
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60 /   HD   POWER PLANTS

641.1  DF  UTILIZING NATURAL HEAT {3}
641.2  DF  .~ Geothermal {3}
641.3.~.~ With direct fluid contact

DEFINITION

Classification: 60/641.3

With direct fluid contact:

(under subclass 641.2) Apparatus wherein the heat of geothermal fluid is transferred to a working fluid by the physical contact of the two fluids (e.g., direct contact heat exchange).