US PATENT SUBCLASS 236 / 39
.~.~.~ Aspirator

Current as of: June, 1999
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236 /   HD   AUTOMATIC TEMPERATURE AND HUMIDITY REGULATION

36  DF  HEATING RADIATOR {4}
*  DD  .~ Exhaust operated {2}
*  DD  .~.~ Fluid-operated motor {1}
39.~.~.~ Aspirator

DEFINITION

Classification: 236/39

(under subclass 36) Heating-radiators with means for exhausting the air therefrom in which the heating effect of the radiator is controlled by a fluid-motor operated by said exhaust, the connection between the exhaust and the motor being controlled by a thermostat.

SEE OR SEARCH THIS CLASS, SUBCLASS:

54, for steam traps incorporating a pressure motor and a

thermostatic pilot therefor.