US PATENT SUBCLASS 425 / 467
.~ Core, pin or insert member

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

461  DF  MEANS PROVIDING A SHAPING ORIFICE {5}
467.~ Core, pin or insert member

DEFINITION

Classification: 425/467

(under subclass 461) Apparatus in which a core, pin or other insert member is provided in the extrusion nozzle.

SEE OR SEARCH THIS CLASS, SUBCLASS:

288, for a die expressing former for making doughnut shapes including concentric members coacting with the shaping orifice means.

465, for shaping nozzles including relatively movable core members to form irregular shaped products.

466, for shaping nozzles with adjustable inserts.