US PATENT SUBCLASS 137 / 172
.~.~ Liquids separated from 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}
172.~.~ Liquids separated from liquid

DEFINITION

Classification: 137/172

(under subclass 171) Separating traps wherein the diverse fluids are liquids of different specific gravity.

(1) Note. Systems containing diverse fluids which are liquids will be found in subclass 154 of this group where discrimination is not involved.

SEE OR SEARCH CLASS

210, Liquid Purification or Separation,

513+, for liquid separating decanters, and see the search notes thereunder.

222, Dispensing,

62, and 395 for dispensers having a liquid pressure fluid for displacing the material to be dispensed.