US PATENT SUBCLASS 137 / 184
.~.~.~.~ Successively opened valves

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}
184.~.~.~.~ Successively opened valves

DEFINITION

Classification: 137/184

(under subclass 183) Separating traps having a plurality of successively opened liquid outlet valves.

(1) Note. See the class definition, Lines With Other Classes and Within This Class, Plural Valves, and also Subclass References to the Current Class, for search notes on plural valves in this and related classes.

SEE OR SEARCH THIS CLASS, SUBCLASS:

628+, for sequentially progressive actuation of plural valves to opening or closing position, and see the search notes to subclass 628.

861+, for distribution systems having plural valved branches, and see the search notes to subclass 861.