Patents by Inventor Wolf Kesselhut

Wolf Kesselhut 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: 6622623
    Abstract: In a method for conveying sheets in a sheet-printing machine, the sheets are held securely in position on a circumferential surface of sheet-guiding cylinders with the aid of an adhesive, which can be detached again a number of times and does not transfer itself onto the sheets, and are conveyed through the printing stations of the printing machine. For transport without using grippers, the sheets are held in an area of their front and rear edges only by the adhesive, and are lifted off the circumferential surface of the impression cylinders with the aid of a sheet-lifting device in order for the front edge to be transferred to a downstream sheet-guiding cylinder. Lifting the sheets off the circumferential surface of the cylinders results in a peel-off effect, by which the adhesive bond can be readily released again.
    Type: Grant
    Filed: June 3, 1999
    Date of Patent: September 23, 2003
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Karl-Heinz Helmstädter, Wolf Kesselhut