Patents by Inventor Ludwig Arras

Ludwig Arras 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 and apparatus for the centering of bodies of rotation having uneven mass distribution along their shaft axis
    Patent number: 4300197
    Abstract: The invention relates to a process and apparatus for the centering of rotational bodies having uneven mass distribution along the shaft axis, particularly crankshafts, in a dynamic centering machine, whereby a working axis is obtained by shifting both ends of the rotational body as opposed to the axis of rotation of the dynamic centering machine.
    Type: Grant
    Filed: April 25, 1979
    Date of Patent: November 10, 1981
    Assignee: Carl Schenck AG
    Inventors: Harald Schonfeld, Heinrich Hack, Ludwig Arras