Patents by Inventor Charles D. Creighton

Charles D. Creighton 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).

  • Apparatus and method for deskewing media in a printer
    Patent number: 5904350
    Abstract: A method and apparatus for deskewing a sheet of media traveling through a paper path in a printer is provided. A buckle is formed in the sheet of media by over-driving the sheet into stationary deskew rollers that form a deskew nip downstream. A deskewing bias element includes a plurality of articulated segmented surfaces that contact the buckle and urge the leading edge of the sheet into the deskew nip. The buckle force combined with the biasing force from the deskewing bias element aligns the leading edge of the sheet with the deskew nip across the full width of the sheet, thereby removing any skew.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: May 18, 1999
    Assignee: Tektronix, Inc.
    Inventors: Charles D. Creighton, Nathan E. Hult, Richard G. Chambers, Clark W. Crawford, Mark A. Telander, Donald B. MacLane