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Class Information
Number: 162/253
Name: Paper making and fiber liberation > Apparatus > Automatic control > Of plural operations
Description: Apparatus in which the control is of more than a single device.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8444821 Measuring of web May. 21, 2013
8224476 Closed-loop monitoring and identification of CD alignment for papermaking processes Jul. 17, 2012
8016978 Method and apparatus of manufacturing a hygiene paper product Sep. 13, 2011
7846299 Apparatus and method for controlling product grade changes in a paper machine or other machine Dec. 7, 2010
7678233 Machine direction sensor system with cross direction averaging Mar. 16, 2010
7584013 Method and apparatus for achieving a fast cross direction caliper control recovery time Sep. 1, 2009
7279072 Method and apparatus for adjusting operation of wire section Oct. 9, 2007
7115188 Process and apparatus for monitoring dewatering in a wet section of a paper machine Oct. 3, 2006
7101461 Method and apparatus for imaging a paper web Sep. 5, 2006
7067039 Method and equipment in connection with a paper machine or a paper web finishing apparatus Jun. 27, 2006
7048827 Dynamic calibration of papermaking machine May. 23, 2006
6998021 Arrangement for paper machine, and blow box Feb. 14, 2006
6929716 Method for the manufacture or treatment of a material web Aug. 16, 2005
6905573 Method and equipment for cleaning and maintaining rolls Jun. 14, 2005
6904331 Method of paper machine control and apparatus for the method Jun. 7, 2005
6733629 Method of controlling the operation of an approach system of a paper machine or the like web formation apparatus May. 11, 2004
6712936 Method for manufacturing paper and paperboard using fracture toughness measurement Mar. 30, 2004
6712937 Method of operating a machine for the manufacture and/or refinement of material webs Mar. 30, 2004
6640152 Modeling and control of sheet weight and moisture for paper machine transition Oct. 28, 2003
6547930 Method for estimating dryer vapor pressure in papermaking machine and apparatus therefor Apr. 15, 2003
6524441 Process for detecting and correcting a fiber orientation cross direction profile change Feb. 25, 2003
6491792 Apparatus for controlling a headbox in a paper machine Dec. 10, 2002
6485610 Method and apparatus for the treatment of a material web and for control of the behavior of a material web Nov. 26, 2002
6482296 Integrated machine control method and machine control module Nov. 19, 2002
6466839 Fast CD and MD control in a sheetmaking machine Oct. 15, 2002
6440270 Method and apparatus for controlling dryer section of paper machine Aug. 27, 2002
6423184 Method and equipment for regulation of the initial part of the dryer section in a paper machine Jul. 23, 2002
6368453 Chip feeding to a comminuted cellulosic fibrous material treatment vessel Apr. 9, 2002
6365004 Method and apparatus for drying a paper web Apr. 2, 2002
6355142 Method of controlling headbox jet velocity for foamed furnishes Mar. 12, 2002
6352615 Method and equipment in a paper/board machine for regulation of the difference of draw Mar. 5, 2002
6290816 Paper machine with closed loop control system Sep. 18, 2001
6264792 Method for producing calendered paper Jul. 24, 2001
6231722 Method and system for monitoring the process of separation of a web May. 15, 2001
6228222 Press arrangement and method thereof May. 8, 2001
6203667 Method for regulating basis weight of paper or board in a paper or board machine Mar. 20, 2001
6203665 Process for setting a uniform characteristic cross-direction profile for a paper web Mar. 20, 2001
6200421 Apparatus and process for feeding stock to a papermachine Mar. 13, 2001
6185468 Decoupling controller for use with a process having two input variables and two output variables Feb. 6, 2001
6179964 Method and control device for paper web profile control with plurality of sensors Jan. 30, 2001
6168687 System and method for sheet measurement and control in papermaking machine Jan. 2, 2001
6149770 Underwire water weight turbulence sensor Nov. 21, 2000
6129817 Unified on-line/off-line paper web formation analyzer Oct. 10, 2000
6099690 System and method for sheet measurement and control in papermaking machine Aug. 8, 2000
6080278 Fast CD and MD control in a sheetmaking machine Jun. 27, 2000
6074531 Device in a measuring station Jun. 13, 2000
6071382 Sheet measurement and control system Jun. 6, 2000
5944957 Regulations system in a paper machine for controlling variation of the basis weight of the paper in the machine direction Aug. 31, 1999
5944955 Fast basis weight control for papermaking machine Aug. 31, 1999
5888348 Method for controlling the permeability of a paper Mar. 30, 1999

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