Patents by Inventor Heinz Eschmeier

Heinz Eschmeier 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).

  • Method of automatically setting the colors printed out by flexographic printing machines for four-color printing
    Patent number: 4667596
    Abstract: A method of automatically setting the colors printed with yellow, magenta, cyan and black printing inks for four-color printing by flexographic printing machines having printing units provided with plate and backing cylinders is characterized in that, to determine the desired color value in a color triangle which serves for color comparison and the corners of which are fixed by the colors yellow, magenta and cyan, the color location is determined for a test grid area which is printed out by all the printing units and in which each of the printing inks participates with a color proportion between about 40% and 60%, that to determine the existing value of the color by densitometric measurement the proportions of printing inks actually present are measured in the test area and the color location of the existing value is determined in the color triangle, that from a comparison of the color locations the departures of the existing values of the color proportions from the desired values are determined for each colo
    Type: Grant
    Filed: November 27, 1985
    Date of Patent: May 26, 1987
    Assignee: Windmoller & Holscher
    Inventors: Klaus P. Dotzel, Heinz Eschmeier