US PATENT SUBCLASS 62 / 222-- .~.~.~ Of expansion valve or variable restrictor

US PATENT SUBCLASS 62 / 222
.~.~.~ Of expansion valve or variable restrictor

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		.~.~.~ Of expansion valve or variable restrictor {2}
223	DF	.~.~.~.~> By external condition
224	DF	.~.~.~.~> By condition at low side {1}

DEFINITION

Classification: 62/222

(under subclass 216) Apparatus in which the device controlled is a valve or variable restrictor of an expansion device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

194, 197+, 204+, and 218, for other sensing control of expansion means with a variable restrictor.

528, for an evaporator with an adjustable flow controller.

SEE OR SEARCH CLASS

236, Automatic Temperature and Humidity Regulation, appropriate subclass, particularly 67+, for a thermostatically controlled valve of more general application.