US PATENT SUBCLASS 137 / 505.39
.~.~.~.~ Valve head in inlet chamber

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

455  DF  LINE CONDITION CHANGE RESPONSIVE VALVES {11}
494  DF  .~ With separate connected fluid reactor surface {8}
505  DF  .~.~ With opening bias (e.g., pressure regulator) {13}
505.38  DF  .~.~.~ Reactor surface closes chamber {3}
505.39.~.~.~.~ Valve head in inlet chamber {3}
505.4  DF  .~.~.~.~.~> Reactor surface is inverted cup (float)
505.41  DF  .~.~.~.~.~> Rectilinear valve stem rigid with reactor surface
505.42  DF  .~.~.~.~.~> With valve closing bias {1}

DEFINITION

Classification: 137/505.39

(under subclass 505.38) Devices in which the valve head is in the inlet chamber and has a stem, or connector, passing through the valve part and connected with and usually attached to, the reactor surface.