US PATENT SUBCLASS 62 / 228.4
.~.~.~ By variable speed motor or pulley type mechanism

Current as of: June, 1999
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62 /   HD   REFRIGERATION

132  DF  AUTOMATIC CONTROL {19}
190  DF  .~ Refrigeration producer {12}
228.1  DF  .~.~ Compressor or its drive controlled {6}
228.4.~.~.~ By variable speed motor or pulley type mechanism

DEFINITION

Classification: 62/228.4

By variable speed motor or pulley type mechanism:

(under subclass 228.1) Apparatus in which movement of the compressor working member is varied as a function of a sensed drive condition.

SEE OR SEARCH THIS CLASS, SUBCLASS:

215, for a compressor controlled by a single sensor responding to plural conditions.