US PATENT SUBCLASS 62 / 223
.~.~.~.~ By external condition

Current as of: June, 1999
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62 /   HD   REFRIGERATION

132  DF  AUTOMATIC CONTROL {19}
190  DF  .~ Refrigeration producer {12}
216  DF  .~.~ Of or by evaporation zone {4}
222  DF  .~.~.~ Of expansion valve or variable restrictor {2}
223.~.~.~.~ By external condition

DEFINITION

Classification: 62/223

(under subclass 222) Apparatus responsive to a condition external of the refrigeration producing means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

177+, for means controlling an external fluid or means, particularly subclasses 180+ for such means combined with a refrigeration producer control.