Patents by Inventor Johannes Schreiner

Johannes Schreiner 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).

  • Method for the electrochemical machining of a workpiece
    Patent number: 8956527
    Abstract: The invention relates to a method for electrochemical processing of at least one workpiece, comprising at least the following steps: a) setting a first flow density during a first phase in an electrolyte, b) retaining the first flow density during a second phase following the first phase, c) increasing the first flow density during a third phase following the second phase to a second flow density at least 30% greater than the first flow density, and d) reducing the second flow density during a fourth phase following the third phase within a maximum of 100 microseconds to a maximum of 1% of the second flow density.
    Type: Grant
    Filed: August 2, 2010
    Date of Patent: February 17, 2015
    Assignee: Kennametal Extrude Hone GmbH
    Inventors: Patrick Matt, Michael Riester, Johannes Schreiner
  • Method for the Electrochemical Machining of a Workpiece
    Publication number: 20120138480
    Abstract: The invention relates to a method for electrochemical processing of at least one workpiece, comprising at least the following steps: a) setting a first flow density during a first phase in an electrolyte, b) retaining the first flow density during a second phase following the first phase, c) increasing the first flow density during a third phase following the second phase to a second flow density at least 30% greater than the first flow density, and d) reducing the second flow density during a fourth phase following the third phase within a maximum of 100 microseconds to a maximum of 1% of the second flow density.
    Type: Application
    Filed: August 2, 2010
    Publication date: June 7, 2012
    Applicant: KENNAMETAL INC.
    Inventors: Patrick Matt, Michael Riester, Johannes Schreiner