US PATENT SUBCLASS 425 / 461
MEANS PROVIDING A SHAPING ORIFICE

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

461MEANS PROVIDING A SHAPING ORIFICE {5}
462  DF  .~> Plural distinct feed inlets {1}
464  DF  .~> Single inlet, plural shaping orifices
465  DF  .~> Including means forming products with distinct portions of varying cross section
466  DF  .~> Adjustable shaping orifice or shape imparting insert member (e.g., core, etc.)
467  DF  .~> Core, pin or insert member

DEFINITION

Classification: 425/461

(under the class definition) Apparatus comprising a shape imparting aperture through which material is forced.

SEE OR SEARCH THIS CLASS, SUBCLASS:

67+, for an extrusion die former discharging directly into a liquid bath.

71, for apparatus for extruding into a liquid bath or shower means.

72.1+, for extrusion shaping means with downstream gas-contact type treating means.

113+, for an extrusion type shaping means including means to unite with a preform for forming a composite product (e.g.., insulated wire).

133.1, for extrusion die combinations in plural sources feeding stock to common means forming common means forming composite product. 190+, for means dismantling an extrusion nozzle from the rest of a mechanism.

309, for a shaping orifice and means extending within the orifice for cutting the product.

325+, for diverse formers including an extrusion nozzle.

331, for perforated plates having roll means to press

material therethrough.

375, for an extrusion nozzle in combination with pattern control for directing travel thereof.

376.1+, for the combination of a shape imparting orifice and means for pressurizing stock fed thereto.

SEE OR SEARCH CLASS

65, Glass Manufacturing, appropriate subclasses for nozzles used in glass manufacturing. See especially

492, and 524.

72, Metal Deforming,

253.1+, for metal deforming by extruding through an orifice; see the search notes thereunder; see also subclasses 467 for an extrusion orifice, per se. 118, Coating Apparatus, especially

400+, for devices for coating a preform by advancing it through a nozzle.

239, Fluid Sprinkling, Spraying, and Diffusing, appropriate subclasses for spray nozzles; see

601, for orifice shapes.

264, Plastic and Nonmetallic Article Shaping or Treating: Processes,

165+, for methods of extruding articles.