US PATENT SUBCLASS 251 / 122
.~.~.~ Tapered metering plug

Current as of: June, 1999
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251 /   HD   VALVES AND VALVE ACTUATION

118  DF  WITH MATERIAL GUIDE OR RESTRICTOR {6}
120  DF  .~ Movable or resilient guide or restrictor {1}
121  DF  .~.~ Adjustable guide or restrictor {1}
122.~.~.~ Tapered metering plug

DEFINITION

Classification: 251/122

(under subclass 121) Devices in which the adjustable restrictor is a tapered plug which extends into the flow passage.

SEE OR SEARCH CLASS

137, Fluid Handling,

625.3, for means to adjust flow through parallel passages in a movable flow-controlling element.