US PATENT SUBCLASS 137 / 177
.~.~ Discriminating outlet for liquid

Current as of: June, 1999
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137 /   HD   FLUID HANDLING

154  DF  DIVERSE FLUID CONTAINING PRESSURE SYSTEMS {7}
171  DF  .~ Fluid separating traps or vents {5}
177.~.~ Discriminating outlet for liquid {4}
178  DF  .~.~.~> With alternately operated inlet and outlet valves
179  DF  .~.~.~> With non-discriminating gas vent or liquid discharge {2}
182  DF  .~.~.~> With auxiliary inlet or by-pass valve
183  DF  .~.~.~> With fluid responsive valve {3}

DEFINITION

Classification: 137/177

(under subclass 171) Separating traps wherein the separating trap is provided with a discriminating outlet which permits outflow of liquid but prevents outflow of gas.

SEE OR SEARCH THIS CLASS, SUBCLASS:

159+, for traps having discriminating liquid outlets, the liquid in the trap controlling gas pressure application to the trap for discharging the liquid.

SEE OR SEARCH CLASS

222, Dispensing,

66, for empty container cut-offs for dispensers.

236, Automatic Temperature and Humidity Regulation, 53, 60 for temperature responsive liquid separating traps.