US PATENT SUBCLASS 137 / 476
.~.~.~ Annular lip or baffle

Current as of: June, 1999
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137 /   HD   FLUID HANDLING

455  DF  LINE CONDITION CHANGE RESPONSIVE VALVES {11}
469  DF  .~ Pop valves {5}
475  DF  .~.~ Adjustable choke {1}
476.~.~.~ Annular lip or baffle {2}
477  DF  .~.~.~.~> On movable valve part
478  DF  .~.~.~.~> Screw threaded

DEFINITION

Classification: 137/476

(under subclass 475) Valves in which the adjustable member is an annular lip or baffle concentric with the valve inlet passage.