US PATENT SUBCLASS 137 / 165
.~.~.~ Float 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}
156  DF  .~ Gas pressure discharge of liquids feed traps (e.g., to boiler) {3}
159  DF  .~.~ Gas pressure controlled by amount of liquid in trap {3}
165.~.~.~ Float responsive {3}
166  DF  .~.~.~.~> Liquid control valve positively actuated
167  DF  .~.~.~.~> Gas condensing type
168  DF  .~.~.~.~> Gas inlet and outlet valves unitary

DEFINITION

Classification: 137/165

(under subclass 159) Feed-traps wherein the gas pressure application is controlled by a float in the feed-trap chamber.

SEE OR SEARCH THIS CLASS, SUBCLASS:

192+, and 202, for float responsive fluid separating traps and vents in diverse fluid containing pressure systems.

409+, for float operated valves of general utility, and see the search notes to subclass 409.