Patents by Inventor Andreas Hollweg

Andreas Hollweg 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).

  • Process for producing dish-shaped moldings of thermoplastic material
    Patent number: 7175791
    Abstract: A process for the production of dish-shaped moldings or hollow bodies of thermoplastic material comprises the step of producing an at least approximately tubular preform by the extrusion of thermoplastic material. The preform is axially divided to form at least one single-layer web of material which is removed from the extrusion head by being engaged by means of a manipulator which spreads and/or straightens the web transversely with respect to the extrusion direction. The web is then transferred to a molding tool by a manipulator for it to be put into its final form in its first heat in the molding tool.
    Type: Grant
    Filed: February 10, 2003
    Date of Patent: February 13, 2007
    Assignee: Kautex Maschinenbau GmbH
    Inventors: Michael Pappert, Alfred Jira, Andreas Hollweg, Wolfgang Kummer, Peter Klusener
  • Process for producing dish-shaped moldings of thermoplastic material
    Publication number: 20030164572
    Abstract: A process for the production of dish-shaped moldings or hollow bodies of thermoplastic material comprises the step of producing an at least approximately tubular preform by the extrusion of thermoplastic material. The preform is axially divided to form at least one single-layer web of material which is removed from the extrusion head by being engaged by means of a manipulator which spreads and/or straightens the web transversely with respect to the extrusion direction. The web is then transferred to a molding tool by a manipulator for it to be put into its final form in its first heat in the molding tool.
    Type: Application
    Filed: February 10, 2003
    Publication date: September 4, 2003
    Inventors: Michael Pappert, Alfred Jira, Andreas Hollweg, Wolfgang Kummer, Peter Klusener