Patents by Inventor Gunter Prautzsch

Gunter Prautzsch 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 making plastic articles having an embossed pattern
    Patent number: 7048533
    Abstract: In a method of making plastic articles with embossed pattern, a plastic material is injection-molded in a cavity of a clamping unit of an injection molding machine to form an injection-molded plastic article. A pattern is embossed from a foil strip onto a previously injection-molded plastic article to form a finished plastic product with embossed pattern, whereby the embossing step is decoupled from the injection molding step and carried out separately from a clamping step of the clamping unit.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: May 23, 2006
    Assignees: Krauss-Maffei Kunststofftechnik GmbH, Bolta-Werke GmbH
    Inventors: Peter Ils, Peter Lichtinger, Günter Prautzsch, Timo Günzel, Wilhelm Pfister, Jürgen Schreyer, Jürgen Hackert
  • Method of making impact-resistant modified thermoplastic materials
    Publication number: 20030164579
    Abstract: In a method of making impact-resistant modified thermoplastic materials, thermoplastic material is introduced in a continuously operating twin-screw extruder having two screws rotating in a same direction and plasticized. Admixed to the thermoplastic material in the extruder at a location well downstream of the feed area of the thermoplastic material is an additive, e.g. impact-resistant modification agent, reinforcing agent, or alloying agent, to produce an extrudate which is conveyed for injection into an injection mold alternately via two injection cylinders or via a storage cylinder and one injection cylinder.
    Type: Application
    Filed: January 15, 2003
    Publication date: September 4, 2003
    Applicant: KRAUSS-MAFFEI KUNSTSTOFFTECHNIK GMBH
    Inventors: Gunter Prautzsch, Erwin Burkle, Bernd Klotz, Hans Wobbe, Walter Wohlrab
  • Method of making plastic articles having an embossed pattern, and apparatus for carrying out the method
    Publication number: 20020089088
    Abstract: In a method of making plastic articles with embossed pattern, a plastic material is injection-molded in a cavity of a clamping unit of an injection molding machine to form an injection-molded plastic article. A pattern is embossed from a foil strip onto a previously injection-molded plastic article to form a finished plastic product with embossed pattern, whereby the embossing step is decoupled from the injection molding step and carried out separately from a clamping step of the clamping unit.
    Type: Application
    Filed: November 6, 2001
    Publication date: July 11, 2002
    Inventors: Peter Ils, Peter Lichtinger, Gunter Prautzsch, Timo Gunzel, Wilhelm Pfister, Jurgen Schreyer, Jurgen Hackert