US PATENT SUBCLASS 137 / 175
.~.~.~ Choke or restricted passage gas bleed

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}
173  DF  .~.~ Plural discriminating outlets for diverse fluids {2}
175.~.~.~ Choke or restricted passage gas bleed {1}
176  DF  .~.~.~.~> From above liquid level

DEFINITION

Classification: 137/175

(under subclass 173) Separating traps wherein one of the discriminating outlets is a restricted gas bleed, which by its small size acts or tends to act as a discriminating gas outlet.

SEE OR SEARCH THIS CLASS, SUBCLASS:

179+, for a discriminating liquid outlet with a nondiscriminating gas vent in a diverse fluid containing pressure system.

583+, for distribution systems having a gas vent and at least one other flow passage, and see the search notes to subclasses 583 and 587.

SEE OR SEARCH CLASS

251, Valves and Valve Actuation,

117, for valves having a restrictor in parallel flow relation thereto, and subclasses 118+ for valves combined with material guides or restrictors, and see the search notes to subclass 118.