US PATENT SUBCLASS 236 / 57
.~.~.~ Bourdon type


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

*  DD  TRAPS {3}
*  DD  .~ Thermostatic {3}
56  DF  .~.~ Expanding fluid {2}
57.~.~.~ Bourdon type


DEFINITION

Classification: 236/57

(under subclass 56) Automatic steam-traps in which the drain-valve is directly operated by a thermostat of the expanding-fluid type in the shape of a Bourdon tube.