US PATENT SUBCLASS 425 / 584
.~.~.~ Air or vacuum utilized to feed stock

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}
578  DF  .~ With normally open stock chamber (e.g., hopper, etc.) {2}
580  DF  .~.~ And feeder to supply granular fluent stock to charger {4}
584.~.~.~ Air or vacuum utilized to feed stock

DEFINITION

Classification: 425/584

(under subclass 580) Apparatus wherein the means to transfer fluent stock from a remote location includes means to apply positive atmospheric pressure upstream of the stock, or includes means to apply negative atmospheric pressure downstream of the stock.