US PATENT SUBCLASS 164 / 312
.~.~.~ Piston-cylinder charger

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.~.~.~ Piston-cylinder charger {3}
313  DF  .~.~.~.~> Opposed piston injector
314  DF  .~.~.~.~> Hydraulic piston pressure means {1}
316  DF  .~.~.~.~> Hot chamber type {2}

DEFINITION

Classification: 164/312

(under subclass 303) Apparatus wherein the injection means comprises a piston operating through a cylinder directly on the fluid casting material.