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:
May. 27, 1997
Filed:
Mar. 15, 1996
Roger H Roch, Cossonay-Ville, CH;
Bobst SA, Lausanne, CH;
Abstract
A process for correcting misregistration between imprinted images from successive printing stations comprising measuring the width of the imprinted image of each station and comparing the width to determine any difference, and creating a correction signal if a difference does exist to change the humidity in the web passing through the printing unit. The device includes photoelectric devices for determining the width of each image created at each station, an electronic device for comparing the width of each image and, if a difference exists, creating an error signal which is applied to the first drying unit and a secondary error signal applied to the second unit to correct the humidity of the web leaving each dryer.