US PATENT SUBCLASS 236 / 55
.~.~ With float-controlled pilot

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

*  DD  TRAPS {3}
*  DD  .~ Thermostatic {3}
55.~.~ With float-controlled pilot

DEFINITION

Classification: 236/55

(under the class definition) Automatic steam-traps with the drain-valve operated by a thermostat and a float-controlled pilot-valve for controlling the flow of heating fluid to the thermostat for operating the same.

SEE OR SEARCH THIS CLASS, SUBCLASS:

68, for similar controls in other combinations.