Patents by Inventor Jürgen Schellbach

Jürgen Schellbach 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).

  • Patent number: 8375580
    Abstract: A method for manufacturing cams for composite camshafts with the steps hot-forming a cam 11 such that a cam outside contour is produced and a cam bore 13 is punched and axially and radially calibrating the cam 11, wherein the calibration comprises the steps inserting the cam into an undivided mold 21 that defines the calibrated cam outside contour 12, inserting an arbor 23 into the cam bore 13 that defines the calibrated cam bore 13, and axially shortening the cam 11 between a lower die 22 that is situated between the mold 21 and the arbor 23 and on which the cam 11 lies with a first end face 14 and an upper die 25 that is guided between the mold 21 and the arbor 23 and acts upon the second end face 15 of the cam 11.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: February 19, 2013
    Assignee: Muhr und Bender KG
    Inventors: Rudolf Bonse, Jürgen Schellbach, Jochen Wolf