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Patent Searching and Data

Document Type and Number:
Japanese Patent JPH11508196
Kind Code:
Method for treating an extruded plastic section having a hollow space and installation suitable for carrying out such a treatment. The installation includes an extruder which has a core for forming the hollow space in the section and, at a distance downstream from the extruder in the extrusion direction of the section, a closing means having a rigid circumferential wall. The installation also has a first conduit connected to a supply orifice which is provided in the circumferential wall of the closing means, a fluid feeder connected to the first conduit and a second conduit connected to a discharge orifice. The discharge orifice is upstream of the supply orifice to provide a fluid film flowing opposite to the extrusion direction between the circumferential wall of the closing means and the extruded section.

Fitschel, Yang
Plenhel, Jan Hendrick
Shurman, Johann
Application Number:
Publication Date:
July 21, 1999
Filing Date:
May 02, 1996
Export Citation:
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Veavin Bethrothem
International Classes:
B29C47/88; B29C48/90; (IPC1-7): B29C47/90; B29C47/88
Attorney, Agent or Firm:
Chika Takagi (2 outside)