US PATENT SUBCLASS 126 / 613
.~.~ Heat pump

Current as of: June, 1999
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126 /   HD   STOVES AND FURNACES

569  DF  SOLAR HEAT COLLECTOR {18}
609  DF  .~ With auxiliary heat source for fluent medium {7}
613.~.~ Heat pump

DEFINITION

Classification: 126/613

Heat pump:

(under subclass 609) Apparatus wherein the heater is a device that has both a refrigerating mode and a heating mode, and the heating mode of the device is used as the heater for the fluent medium. [figure]