Patents by Inventor Peter Walczak

Peter Walczak 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: 6408751
    Abstract: An automatic multi-process ink leveler for open-fountain printing presses includes a duct with four chambers extending over the width of the ink fountain. In the case of a split ink fountain, which is typically used in newsprint presses wherein the ink tray is split into four sections each for one page of the paper web, the automatic leveler is provided with a remote-controlled valve for each chamber associated with each of the segments. Accordingly, there are provided 4×4 valves for four colors at the bottom surface of the ink leveler. By opening the remote controlled valves for a desired color (i.e., black, cyan, magenta, yellow) in the segment, a quick color change in a split ink fountain can be obtained without cleaning the entire ink leveler. In addition, different types of ink (different tack, viscosity) can be used with the same result.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: June 25, 2002
    Assignee: Heidelberger Druckmaschinen AG
    Inventor: Peter Walczak