US PATENT SUBCLASS 137 / 171
.~ Fluid separating traps or vents

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

154  DF  DIVERSE FLUID CONTAINING PRESSURE SYSTEMS {7}
171.~ Fluid separating traps or vents {5}
172  DF  .~.~> Liquids separated from liquid
173  DF  .~.~> Plural discriminating outlets for diverse fluids {2}
177  DF  .~.~> Discriminating outlet for liquid {4}
197  DF  .~.~> Discriminating outlet for gas {2}
203  DF  .~.~> With liquid emptying means {1}

DEFINITION

Classification: 137/171

(under subclass 154) Apparatus which separates and provides for the removal of one or more of the diverse fluids from the system.

(1) Note. The material may be collected in an auxiliary chamber or trap prior to discharge, or it may be vented directly through a controlled or restricted outlet in the system. In either case, a given discharge means is intended to relieve the system of one fluid but not others.

(2) Note. Mere vents for gas in diverse fluid containing pressure systems are found in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

213+, for venting gas from the supply stored over or used to displace a liquid.

312+, for collection of external condensate or drip.

SEE OR SEARCH CLASS

34, Drying and Gas or Vapor Contact With Solids,

125, for liquid removal devices for steam drying apparatus.

96, Gas Separation: Apparatus, for apparatus for gas separation, per se, particularly

155+, for degasifying means for liquid, per se.

210, Liquid Purification or Separation, appropriate subclasses for separation of liquids from liquids or solids.

236, Automatic Temperature and Humidity Regulation, appropriate subclasses, especially

41, and 53-60 for thermally operated or responsive traps or vents in fluid handling system for automatic temperature regulation.