US PATENT SUBCLASS 425 / 578
.~ With normally open stock chamber (e.g., hopper, etc.)

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.~ With normally open stock chamber (e.g., hopper, etc.) {2}
579  DF  .~.~> Charger including a shaping surface (e.g., Briquetting means, etc.)
580  DF  .~.~> And feeder to supply granular fluent stock to charger {4}

DEFINITION

Classification: 425/578

(under subclass 542) Apparatus wherein the means to force fluent stock includes a supply vessel which is for holding the fluent material prior to transfer to the shaping cavity, and is open to the atmosphere during filling thereof.