Patents by Inventor Douglas Wolff

Douglas Wolff 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).

  • Dampening system for offset printing press and method
    Patent number: 6314878
    Abstract: A dampening train of rollers in an offset printing press system for delivering dampening solution to a plate cylinder in which the dampening train of rollers is independent of and separate from an inking train of rollers which provide ink to the plate cylinder. The dampening train of rollers has at least four rollers including a dampening solution transfer roller, a dampening form roller, a single mechanically driven drive roller, and at least one rider roller. The plate cylinder engages with the single dampening form roller which transfers an even application of dampening solution to the plate cylinder. The mechanically driven drive roller is surrounded by the dampening form roller and the rider rollers which are positioned at the supply side of the drive roller between the transfer roller and the form roller.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: November 13, 2001
    Assignee: Ryco Graphic Manufacturing, Inc.
    Inventors: Douglas Wolff, Jiing-Kang Lin