Patents by Inventor Claus Peter Schmidt

Claus Peter Schmidt 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).

  • Apparatus for the continuous production of biaxially-stretched blown plastic foil
    Patent number: 5891480
    Abstract: A foil-blowing apparatus and start-up method utilizes switchable roller pairs and a seal in an upstream primary tube stretch to subdivide the interior of the primary tube into an upper chamber and a lower chamber, the lower chamber being in communication with a rising stretch of the primary tube with the tube in a heating chamber which brings the extruded tube to a foil-blowing temperature. The foil is blown by the pressure in the lower pressure chamber, at least during start up.
    Type: Grant
    Filed: January 28, 1997
    Date of Patent: April 6, 1999
    Assignee: Reifenhauser GmbH & Co. Maschinenfabrik
    Inventors: Claus Peter Schmidt, Josef Nowak