Patents by Inventor Klaus Rahnhofer

Klaus Rahnhofer 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).

  • Index drive, and fluid passage for an injection molding machine
    Patent number: 7537442
    Abstract: A machine-side ejector assembly for an injection molding machine having a mold mounting plate includes an ejector plate which is movable relative to the mold mounting plate, and a rotatable shaft having one end received by the ejector plate. An indexing plate is connectable to the rotatable shaft, with a rotary drive, disposed on or in the ejector plate, for rotating the indexing plate via the rotatable shaft.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: May 26, 2009
    Assignee: Demag Ergotech GmbH
    Inventor: Klaus Rahnhöfer
  • Index drive, and fluid passage for an injection molding machine
    Publication number: 20060172036
    Abstract: A machine-side ejector assembly for an injection molding machine having a mold mounting plate includes an ejector plate which is movable relative to the mold mounting plate, and a rotatable shaft having one end received by the ejector plate. An indexing plate is connectable to the rotatable shaft, with a rotary drive, disposed on or in the ejector plate, for rotating the indexing plate via the rotatable shaft.
    Type: Application
    Filed: January 27, 2006
    Publication date: August 3, 2006
    Applicant: Demag Ergotech GmbH
    Inventor: Klaus Rahnhofer
  • Retrofit module for adding a plasticizing and injection unit to an injection molding machine, and injection molding machine with added retrofit module
    Publication number: 20060078645
    Abstract: A retrofit module for attachment to an injection molding machine having a plasticizing and injection unit includes a module plasticizing and injection unit, and a support assembly to secure the module plasticizing and injection unit on the injection molding machine independently from the plasticizing and injection unit of the injection molding machine. The module plasticizing and injection unit and the plasticizing and injection unit of the injection molding machine define hereby length axes which extend at an angle of less than 90°. Extending through a nozzle orifice of a platen of the injection molding machine is a nozzle assembly for conducting melt produced by the plasticizing and injection unit of the injection molding machine and the module plasticizing and injection unit. The nozzle assembly is constructed to allow docking of the module plasticizing and injection unit and plasticizing and injection unit of the injection molding machine.
    Type: Application
    Filed: October 11, 2005
    Publication date: April 13, 2006
    Applicant: Demag Ergotech GmbH
    Inventors: Jorg Seidel, Willi Grotsch, Ralf Brada, Klaus Rahnhofer