US PATENT SUBCLASS 425 / 577
.~ Mold having movable core or movable pin

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}
577.~ Mold having movable core or movable pin

DEFINITION

Classification: 425/577

(under subclass 542) Apparatus wherein a movable core, sprue pin or compression pin is provided within a shaping cavity.

(1) Note. Ejector pins are excluded; see the search notes below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

444, for a shaping surface and movable ejector means (e.g.., pin, etc..) which enters the shaping cavity after shaping.

468, for a core and core positioning means combination; see the collection of search notes thereunder.

522+, for a blow mold including an internal mandrel used to inflate a parison.