US PATENT SUBCLASS 126 / 598
.~.~.~.~ Freezing prevention

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

569  DF  SOLAR HEAT COLLECTOR {18}
572  DF  .~ With control means energized in response to actuator stimulated by condition sensor {3}
593  DF  .~.~ Of collector {2}
595  DF  .~.~.~ Temperature responsive {4}
598.~.~.~.~ Freezing prevention

DEFINITION

Classification: 126/598

Freezing prevention:

(under subclass 595) Apparatus wherein in response to the sensed temperature condition, a device is actuated to protect the apparatus against damage due to cold weather.