US PATENT SUBCLASS 137 / 187
.~.~.~.~ Level responsive

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


137 /   HD   FLUID HANDLING

154  DF  DIVERSE FLUID CONTAINING PRESSURE SYSTEMS {7}
171  DF  .~ Fluid separating traps or vents {5}
177  DF  .~.~ Discriminating outlet for liquid {4}
183  DF  .~.~.~ With fluid responsive valve {3}
187.~.~.~.~ Level responsive {2}
188  DF  .~.~.~.~.~> Weight or pressure {1}
192  DF  .~.~.~.~.~> Float {4}

DEFINITION

Classification: 137/187

(under subclass 183) Separating traps wherein the valve is controlled by the level of liquid in the trap.

SEE OR SEARCH THIS CLASS, SUBCLASS:

159+, for liquid level control of gas pressure discharge type feed-traps.

386+, for liquid level responsive valves for other and general uses, and see the search notes to subclass 386.

SEE OR SEARCH CLASS

222, Dispensing,

64+, for dispensers controlled by material level.