US PATENT SUBCLASS 425 / 131.1
.~ Extrusion shaping means

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

130  DF  MEANS FEEDING FLUENT STOCK FROM PLURAL SOURCES TO COMMON SHAPING MEANS TO FORM COMPOSITE PRODUCT {2}
131.1.~ Extrusion shaping means {4}
131.5  DF  .~.~> Comprising spinnerette
132  DF  .~.~> Intermittent feed
133.1  DF  .~.~> Concentric
133.5  DF  .~.~> For extruding film

DEFINITION

Classification: 425/131.1

(under subclass 130) Apparatus wherein the shaping means is an orifice.

SEE OR SEARCH THIS CLASS, SUBCLASS:

113+, for extrusion shaping means combined with preform handling means forming a composite article; see the search notes thereunder.

461+, for an extrusion nozzle, per se, and see the collection of search notes thereunder relating to greater combinations thereof.

SEE OR SEARCH CLASS

264, Plastic and Nonmetallic Article Shaping or Treating: Processes, 171.1+, for processes of forming a composite product by extrusion.