US PATENT SUBCLASS 251 / 217
.~.~ Valve head between actuator and screw

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

213  DF  MECHANICAL MOVEMENT ACTUATOR {10}
215  DF  .~ Plural motions of valve {5}
217.~.~ Valve head between actuator and screw

DEFINITION

Classification: 251/217

(under subclass 215) Devices wherein the valve head is mounted on the valve stem between the screw threads and the handle or other actuator.