Patents by Inventor Richard E. O'Connell

Richard E. O'Connell 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 for printing multicolor halftone images on cylindrical objects
    Patent number: 3948171
    Abstract: Halftone, multicolor printed effects are achieved by special preparation of art work in the desired pre-selected colors without blending and the use of only white as a diluent of color strength, forming color separated line-engraved press plates therefrom and applying the separate colors by offset printing to the workpiece without overprinting. A novel method and apparatus for producing halftone effect printing using these line-engraved press plates for printing cylindrical objects, and more particularly, cans of the two-piece type.
    Type: Grant
    Filed: May 2, 1974
    Date of Patent: April 6, 1976
    Assignee: National Can Corporation
    Inventor: Richard E. O'Connell