Patents Examined by Yuan L Chen
  • Patent number: 7559279
    Abstract: In order to control the cut register in multi-web operation in a web-fed press and to control the web tension in a web section, image information or measuring marks from printed webs and web tensions in different web sections are registered by sensors and supplied to a control device. To correct the cut register error of at least one web, either the speed of at least one clamping point located before the knife cylinder and/or the position of the knife cylinder and, to correct the web tension, the speed of at least one further clamping point is changed, so that the actual value of the part and/or total cut register error of at least one web and the at least one web tension arc corrected to the associated predefined set points.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: July 14, 2009
    Assignee: MAN Roland Druckmaschinen AG
    Inventors: Günther Brandenburg, Stefan Geissenberger, Andreas Klemm
  • Patent number: 7481165
    Abstract: In a method for controlling the inking in at least one inking unit of an offset press, namely for controlling the zonal inking that can be adjusted by inking zone actuating elements of the respective inking unit, measurement regions are measured for this purpose and actual values determined in the process are compared with predefined intended values in order to generate actuating signals for the inking zone actuating elements on the basis of the comparison between the actual values and the intended values. Control deviations between the measured actual values and the predefined intended values are modified on the basis of a model of the respective inking unit and/or on the basis of data from the subject.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: January 27, 2009
    Assignee: MAN Roland Druckmaschinen AG
    Inventor: Armin Weichmann