(under the class definition) Apparatus comprising a movable forming means (e.g.., nozzle, plunger, etc..) and a means controlling the movement thereof to obtain an article of a predetermined shape.
SEE OR SEARCH THIS CLASS, SUBCLASS:
381, for a movable orifice or a movably mounted inner mandrel within an orifice.
461+, for extrusion nozzles, per se, and see the search notes thereunder for combinations comprising nozzle type shaping means.