US PATENT SUBCLASS 425 / 516
.~.~ Extrusion

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

500  DF  PREFORM ASSEMBLY MEANS AND MEANS FOR BONDING OF PLURAL PREFORMS INVOLVING PREFORM RESHAPING OR VULCANIZING {8}
515  DF  .~ With additional shaping means to form or reshape preform upstream of bonding means {1}
516.~.~ Extrusion

DEFINITION

Classification: 425/516

(under subclass 515) Apparatus wherein the shaping means has a shape imparting aperture or orifice through which work material is forced.

SEE OR SEARCH THIS CLASS, SUBCLASS:

461+, for a shaping orifice, per se, and see the search notes thereunder.