US PATENT SUBCLASS 425 / 559
.~.~ Accumulator with check valve supplying fluent thereto

Current as of: June, 1999
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425 /   HD   PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS

542  DF  FEMALE MOLD AND CHARGER TO SUPPLY FLUENT STOCK UNDER PRESSURE THERETO IN FLUID-TIGHT RELATIONSHIP (E.G., INJECTION MOLD, ETC.) {17}
557  DF  .~ With accumulator, trap chamber, or serially arranged valves between charger and mold {4}
559.~.~ Accumulator with check valve supplying fluent thereto

DEFINITION

Classification: 425/559

(under subclass 557) Apparatus including a volumetric compartment, and including a valve means for permitting fluent stock to flow into the compartment, but preventing the stock to flow in the opposite direction.