The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 19, 2002
Filed:
Apr. 18, 2000
Gottfried Ernst-Rudolf Weidlich, Kiel, DE;
Heidelberger Druckmaschineen AG, Heidelberg, DE;
Abstract
In a method for positioning engraving elements in an electronic engraving machine for a rotogravure printing cylinder engraving at least two adjacent lying engraving areas of selected widths by engraving with an engraving element respectively assigned thereto, axial reference positions are selected for the engraving elements whose axial distances to each other correspond to the selected widths of the engraving areas that are to be engraved. An electronic position measuring system formed essentially of a video camera and an image evaluation unit is successively placed on the axial reference positions. At each reference position, the axial divergence of the tip of the stylus pertaining to the appropriate engraving element or the divergence of at least one cup which is test engraved by the engraving element from the reference position is determined using the position measuring system. The engraving elements are then automatically shifted according to the chosen divergences and placed exactly on the reference positions.