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:
Jul. 27, 1999
Filed:
Dec. 10, 1997
Andreas Birkenfeld, Dinkelscherben, DE;
Karl-Heinz Reichel-Langer, Wemding, DE;
Baldwin Grafotec GmbH, Augsburg, DE;
Abstract
In carrying through quality management while printing a web on a rotational roller printing machine high accuracy is obtained by a periodic returning, simultaneous measuring of color density and spectral distribution in at least one selected point of the periodically returning printing pattern; the continuous registration and storing of the measuring results over the entire duration of the production process; an analysis of the measured results by predetermined criteria at least at the end of production. For doing so a device is provided with at least one adjustable measuring head spanning the width of the printed web, containing a spectrometer and a light source; the measuring head can be activated depending on the product by means of an encoder assigned to the rotational roller printing machine. Further, a control device is provided that can continuously record the measuring signals of each measuring head.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile