US PATENT SUBCLASS 166 / 332.6
.~.~ Having a dump or discharge type means

Current as of: June, 1999
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166 /   HD   WELLS

316  DF  VALVES, CLOSURES OR CHANGEABLE RESTRICTORS {5}
332.1  DF  .~ Longitudinally movable operator {8}
332.6.~.~ Having a dump or discharge type means

DEFINITION

Classification: 166/332.6

Having a dump or discharge type means:

(under subclass 332.1) Longitudinally moveable operator wherein the flow regulating member includes a passage to allow excess fluid to escape.