US PATENT SUBCLASS 164 / 315
.~.~.~.~.~ Having multi-way valve control unit

Current as of: June, 1999
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164 /   HD   METAL FOUNDING

271  DF  MEANS TO SHAPE METALLIC MATERIAL {12}
284  DF  .~ Pressure shaping means {5}
303  DF  .~.~ Injection type {4}
312  DF  .~.~.~ Piston-cylinder charger {3}
314  DF  .~.~.~.~ Hydraulic piston pressure means {1}
315.~.~.~.~.~ Having multi-way valve control unit

DEFINITION

Classification: 164/315

(under subclass 314) Apparatus wherein the hydraulic piston is controlled by a single valve having three or more flow lines with an actuator arranged so as to determine the relative order, duration or flow through each of the several flow lines.

SEE OR SEARCH CLASS

137, Fluid Handling,

625+, for fluid handling systems employing a multi-way valve.