US PATENT SUBCLASS 137 / 505.43
.~.~.~.~.~.~ In reactor chamber

Current as of: June, 1999
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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  DF  .~.~.~.~ Valve head in inlet chamber {3}
505.42  DF  .~.~.~.~.~ With valve closing bias {1}
505.43.~.~.~.~.~.~ In reactor chamber

DEFINITION

Classification: 137/505.43

(under subclass 505.42) Devices in which the bias tending to close the valve is located in the reactor surface, or outlet, chamber.