Patents by Inventor Joseph G. Blackwell

Joseph G. Blackwell 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).

  • Ink duct of a rotary printing press
    Patent number: 5809887
    Abstract: Ink duct of a rotary printing press, having two side walls between which an ink duct blade is arranged, each of the side walls being formed with an arcuate recess at a front end face thereof for bearing against an ink duct roller of the printing press, includes a deformation device disposed at each of the side walls for modifying a contour thereof defining the respective recess formed therein.
    Type: Grant
    Filed: November 18, 1997
    Date of Patent: September 22, 1998
    Assignees: Heidelberger Druckmaschinen AG, Heidelberg Harris S.A.
    Inventors: Joseph G. Blackwell, Christian Beyne