US PATENT SUBCLASS 137 / 505.32
.~.~.~.~.~.~ With movement dampener

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  DF  .~.~.~.~.~ Reactor is an inverted cup having liquid seal {2}
505.32.~.~.~.~.~.~ With movement dampener

DEFINITION

Classification: 137/505.32

(under subclass 505.31) Devices in which the inverted cup has additional members, or is purposefully shaped, to dampen or retard its movement.