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US Patent 7866973 Die for forming extrudates of viscoelastic materials

Patent 7866973 was granted and assigned to Buhler Group on January, 2011 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Buhler Group

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7866973

Date of Patent

January 11, 2011

Patent Application Number

10546408

Date Filed

February 6, 2004

Patent Primary Examiner

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Yogendra N. Gupta

Patent abstract

The invention relates to a die assembly(1) for forming extrudates of viscoelastic masses, e.g. polymers, dough masses etc, comprising several similar parallel die channels (2), each extending through the die assembly (1) in the axial transport direction (F) of the mass. According to the invention, a respective partition (5), which runs parallel with the axial transport direction (F) and is equipped with a cutting edge (5a) on its upstream end, is provided on the upstream end of the die body (1) between two adjacent inlet openings (3).