Patents by Inventor Hans-Joachim Koerner

Hans-Joachim Koerner 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 and apparatus for finish machining ball tracks in a nut of a ball drive
    Patent number: 8647175
    Abstract: A radially inwardly open raceway formed in a nut centered on a nut axis is machined by of oscillating the nut about the nut axis while pressing a tool secured in a holder radially outwardly into the raceway of the nut. The holder is moved parallel to the nut axis and oscillated about a tool axis perpendicular to the nut axis synchronously with the oscillation of the nut about the nut axis. Springs brace the tool against the holder parallel to the nut axis such that the tool can move limitedly in the holder against spring bias parallel to the tool axis.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: February 11, 2014
    Assignee: Thielenhaus Technologies GmbH
    Inventors: Thomas Schmitz, Siegfried Hesse, Hans-Joachim Koerner
  • METHOD AND APPARATUS FOR FINISH MACHINING BALL TRACKS IN A NUT OF A BALL DRIVE
    Publication number: 20110287695
    Abstract: A radially inwardly open raceway formed in a nut centered on a nut axis is machined by of oscillating the nut about the nut axis while pressing a tool secured in a holder radially outwardly into the raceway of the nut. The holder is moved parallel to the nut axis and oscillated about a tool axis perpendicular to the nut axis synchronously with the oscillation of the nut about the nut axis. Springs brace the tool against the holder parallel to the nut axis such that the tool can move limitedly in the holder against spring bias parallel to the tool axis.
    Type: Application
    Filed: May 17, 2011
    Publication date: November 24, 2011
    Inventors: Thomas Schmitz, Siegfried Hesse, Hans-Joachim Koerner