US PATENT SUBCLASS 137 / 505.31
.~.~.~.~.~ Reactor is an inverted cup having liquid seal

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}
505.26  DF  .~.~.~ Reactor surface separated by apertured partition {3}
505.29  DF  .~.~.~.~ Valve stem passes through the aperture {3}
505.31.~.~.~.~.~ Reactor is an inverted cup having liquid seal {2}
505.32  DF  .~.~.~.~.~.~> With movement dampener
505.33  DF  .~.~.~.~.~.~> Valve head in inlet chamber

DEFINITION

Classification: 137/505.31

(under subclass 505.29) Devices wherein the reactor surface is in the form of a bell or inverted cup floating in a liquid which forms a liquid seal for the reactor surface chamber.