Patents by Inventor Karl Herchenröther

Karl Herchenröther 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 and method for healing a workpiece of metal
    Patent number: 6689995
    Abstract: The invention relates to an apparatus and a method for heating a workpiece of an inductively heatable material, for example a turbine blade. Such a turbine blade consists of a massive blade base and a low-mass blade leaf. To enable the blade base and blade leaf to be heated in a manner appropriate to each an induction coil is provided, which surrounds the blade base and the blade leaf. By suitable choice of the alternating currents which flow through the induction coil and/or through the interposition of a susceptor between turbine blade and induction coil, the blade base and blade leaf can be heated in an appropriate manner.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: February 10, 2004
    Assignee: ALD Vacuum Technologies AG
    Inventors: Helmut Eberhardt, Karl-Heinz Grosse, Karl Herchenröther, Jürgen Lemke
  • Apparatus for inductively heating a workpiece
    Patent number: 6677560
    Abstract: The invention relates to an apparatus and a method for heating a workpiece of an inductively heatable material, for example a turbine blade. Such a turbine blade consists of a massive blade base and a low-mass blade leaf. To enable the blade base and blade leaf to be heated in a manner appropriate to each an induction coil is provided, which surrounds the blade base and the blade leaf. By suitable choice of the alternating currents which flow through the induction coil and/or through the interposition of a susceptor between turbine blade and induction coil, the blade base and blade leaf can be heated in an appropriate manner.
    Type: Grant
    Filed: February 6, 2001
    Date of Patent: January 13, 2004
    Assignee: Ald Vacuum Technologies AG
    Inventors: Helmut Eberhardt, Karl-Heinz Grosse, Karl Herchenröther, Jürgen Lemke