Patents by Inventor Uwe Schumichen

Uwe Schumichen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Extrusion die for the production of a flat sheet of thermoplastic material
    Patent number: 4753587
    Abstract: An extrusion die having an adjustable lip opening through which thermoplastic material is forced to form a flat sheet. Fine adjustment of the lip is effected thermally and without play by the provision of an element or a heating or cooling block which braces the lip. Coarse adjustment is effected manually, and without play, by operation of a pair of bolts. One bolt axially shifts the block, and the other bolt tightens the block against the die body.
    Type: Grant
    Filed: August 21, 1987
    Date of Patent: June 28, 1988
    Assignee: ER-WE-PA Maschinenfabrik und Eisengiesserei GmbH
    Inventors: Dragan Djordjevic, Uwe Schumichen