US PATENT SUBCLASS 165 / 278
.~ Vent of system (e.g., overpressure, overtemperature, removal of noncondensable, etc.)


Current as of: June, 1999
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165 /   HD   HEAT EXCHANGE

200  DF  WITH TIMER, PROGRAMMER, TIME DELAY, OR CONDITION RESPONSIVE CONTROL {14}
278.~ Vent of system (e.g., overpressure, overtemperature, removal of noncondensable, etc.)


DEFINITION

Classification: 165/278

Vent of system (e.g., overpressure, overtemperature, removal of noncondensable, etc.):

(under subclass 200) Subject matter wherein said heat transfer apparatus includes a confined volume containing a heat transfer fluid within; and further including means to allow the escape of fluid from said confined volume.

SEE OR SEARCH THIS CLASS, SUBCLASS:

71, for heat exchange apparatus with purge, or drainage, cock or plug; subclass 104.32 for heat exchange apparatus having intermediate liquid fluent heat exchange material with pressurizing or degassifying means; subclass 917 for heat exchange apparatus having pressurization and/or degassification.

SEE OR SEARCH CLASS

236, Automatic Temperature and Humidity Regulation,

92, for thermostatic control of hot and cold with diverse sensor (e.g., humidity, pressure, etc.).