US PATENT SUBCLASS 236 / 92 R
.~ With pressure control

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

*  DD  THERMOSTATIC {9}
92 R.~ With pressure control {4}
92 A  DF  .~.~> Combined with fuel gas pressure regulator
92 B  DF  .~.~> Refrigeration expansion valves
92 C  DF  .~.~> Pressure- and temperature-actuated relief valves
92 D  DF  .~.~> Pressure- and temperature-actuated valves associated with carburetors

Unofficial Alpha Subclasses: R A B C D

DEFINITION

Classification: 236/92

(under the class definition) Devices operated by a thermostat and pressure-responsive means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

61, for radiator air relief means controlled by thermostat and pressure.