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| Number | Title | Issue Date |
| 8157965 | Sheet forming machine [Problem] It provides a sheet forming machine which can make the thickness in the width direction of a sheet forming body be uniform, and also can obtain a sheet forming body which is integrated in stripe shapes by using different raw materials or raw materials of d... | 04/17/2012 |
| 8114253 | Apparatus for characterizing fibrous materials using stokes parameters An apparatus for determining fiber orientation parameters of a sheet of material during a production process includes a polarized radiation generating system operable for providing polarized radiation having a frequency of at least 1×108 Hz. The radiatio... | 02/14/2012 |
| 8088255 | Sheet stabilizer with dual inline machine direction air clamps and backsteps An air stabilization system employing two substantially parallel, codirectional Coanda nozzles, that are positioned adjacent a flexible moving web, with each nozzle exhausting gas at the same downstream machine direction, subjects the moving web to shear forces effe... | 01/03/2012 |
| 8083896 | Pressure equalizing baffle and coanda air clamp An air stabilization system employing two parallel, opposite-facing Coanda nozzles, with each nozzle exhausting gas at opposite directions, subjects a moving flexible web to opposing forces effective to create local tension within the web. Each nozzle includes an el... | 12/27/2011 |
| 8083895 | Sheet stabilization with dual opposing cross direction air clamps An air stabilization system employing two parallel, opposite facing Coanda nozzles, that are positioned adjacent a flexible moving web, with each nozzle exhausting gas at opposite directions, subjects the moving web to opposing forces effective to stabilize the web.... | 12/27/2011 |
| 8070916 | Device for producing a web of tissue Method and device for producing a web of tissue. In the method, the web of tissue is led over at least one drying cylinder, doctored off the latter with a creping doctor and then wound up by way of a winding device. The web of tissue is supported at least largely ov... | 12/06/2011 |
| 7905988 | Method for the production of a web of tissue material Machine, in particular a tissue machine, for production of a web of tissue material. The web of tissue material is produced by supplying at least two stock grades to a multilayer flow box, winding up the tissue web on a reel of a reel-up, and maintaining a winding n... | 03/15/2011 |
| 7875152 | Torn paper web capture system A torn paper web capture system that is a mechanism for securing a band, tape or strap, preferably composed of paper, across a paper roll as the roll is rotating. A sensor means detects the torn paper web and initiates both the shut down of rotation of the paper rol... | 01/25/2011 |
| 7862689 | Water content estimation apparatus, sheet material processing apparatus, water content estimation method, and sheet material processing method Information (particularly, water content) of a sheet material which changes during progression of processing is estimated with higher accuracy and information output or (image formation) processing is performed. The water content estimation method of the present inv... | 01/04/2011 |
| 7857942 | Paper machine comprising a translation device A paper machine for continuous production of paper in a paper web (4) is described. The paper machine comprises a plurality of drivable rolls (5) for control of the paper web (4) and a translation device for moving a means essentially perpendicu... | 12/28/2010 |
| 7820012 | Reverse bump test for closed-loop identification of CD controller alignment A reverse bump test, for identifying the alignment of a sheetmaking system while the system remains in closed-loop control, includes the following steps: (a) leaving the control system in closed-loop, (b) artificially inserting a step signal on top of the measuremen... | 10/26/2010 |
| 7811417 | Cross-machine direction actuators for machine clothing A method for affecting moisture content of a sheet of paper includes providing a moisture measuring device disposed in a papermaking machine to measure the moisture content of a sheet of paper and create a moisture profile of the sheet of paper, determining the mois... | 10/12/2010 |
| 7678233 | Machine direction sensor system with cross direction averaging Disclosed is a machine direction measurement system having an increased cross direction sampling area (significantly larger than the natural sensor measurement window) to generate a more representative and stable machine direction reading of the process. In effect, ... | 03/16/2010 |
| 7662261 | Beam structure for a web forming machine A beam structure for a web forming machine is arranged to be supported by its end components (10) on the web forming machine. The beam structure includes a casing structure (15) of a thin-sheet material, inside which a stiffener structure (30) i... | 02/16/2010 |
| 7648614 | Method and apparatus for controlling cross-machine direction (CD) controller settings to improve CD control performance in a web making machine A web making machine is monitored to identify at least one cross-machine direction (CD) actuator that is developing local mapping problems. The identified CD actuator and a segment of surrounding actuators are probed to determine a performance curve for the actuator... | 01/19/2010 |
| 7520962 | Machine for producing a fibrous web Machine for producing a web includes a system for predefining a quantity of a grade to be produced utilizing a measuring arrangement for measuring quality data during production of the web. The system defines the quantity of the grade to be produced by using data me... | 04/21/2009 |
| 7513975 | Cross-direction actuator and control system with adaptive footprint A method and system for controlling one or more properties of a sheet of material to be manufactured on a sheet-making machine is disclosed. Actuators to control the sheet properties are arrayed in the cross-direction of the machine. Properties data about one or mor... | 04/07/2009 |
| 7494567 | Combined paper sheet temperature and moisture sensor Temperature measurements of sheet material such as paper can be obtained directly from an analysis of the absorption spectrum of water in the infrared region. The technique is based in part on the recognition that the central wavelength position of a selected moistu... | 02/24/2009 |
| 7435314 | Method for the production of a fibrous web In a method for the production of a fibrous web, especially a paper or cardboard web, an automatic ash control system and an automatic retention control system for the reduction or suppression of an interactive build-up of the two controls are linked via a model for... | 10/14/2008 |
| 7437208 | System for computer-aided measurement of quality and/or process data in a paper machine A system for the computer-aided measurement of quality and/or process data during the production and/or conversion of a material web, in particular paper or board web, by way of correlation with raw measured data. The raw measured data is present in the form of othe... | 10/14/2008 |
| 7431800 | Device and method for on-line control of the fibre direction of a fibre web A device and a method for on-line control of the fibre direction of a fire web (8), being manufactured from stock delivered from a headbox (3) through a discharge opening (11) defined by movable lips (9, 10), while using a fibre direction... | 10/07/2008 |
| 7407562 | Method, system and calendar for controlling the moisture profile and/or moisture gradient of a paper web, and a web The moisture profile and/or moisture gradient of a paper web of at least SC quality paper is controlled in a paper machine comprising a calender (1) which has at least two roll stacks (21, 22; 31, 32), one stack has at least three rolls and another has... | 08/05/2008 |
| 7399380 | Jet velocity vector profile measurement and control In a papermaking system having a headbox to dispense a jet of liquid and paper forming fibers, an improvement comprising at least one sensor arrangement for simultaneously or sequentially measuring in at least one location the jet velocity or jet flow correlation of... | 07/15/2008 |
| 7396437 | Method and system for controlling the web formation Method and system for controlling web formation in the forming section of a paper machine includes measuring the amount of white water occurring during drainage in at least one drainage region of the forming section; and carrying out the web formation control on the... | 07/08/2008 |
| 7390669 | Simultaneous and rapid determination of multiple component concentrations in a Kraft liquor process stream The present invention is a rapid method of determining the concentration of the major components in a chemical stream. The present invention is also a simple, low cost, device of determining the in-situ concentration of the major components in a chemical stream. In ... | 06/24/2008 |
| 7390379 | Method and apparatus for determining the lateral position of a web or fabric edge in a former The lateral position of a web or fabric edge 11 in a paper machine is determined using an ultrasonic sensor. The ultrasonic sensor has a detector head 42, with an air channel system which opens to the vicinity of the head for forming an air knife which... | 06/24/2008 |
| 7384509 | Method for controlling the moisture profile of a paper web A method for controlling the moisture profile of a paper web or board web processed in a heated multi-roll calendar to optimize the qualities of the paper or board, especially gloss. The method is characterized in that the moisture measurement is carried out both on... | 06/10/2008 |
| 7384510 | Apparatus and method for determining the permeability of a circulating band in a paper machine An apparatus and a method for determining the permeability of a circulating band, in particular a water-absorbing dewatering band in a papermaking machine. The apparatus is equipped with a nozzle from which a measuring fluid flows onto or through the band. Fluctuati... | 06/10/2008 |
| 7381304 | Method and system for threading a running paper web A method for threading a running paper web from a preceding section to a following section of a paper-making or paper-finishing machine, includes the steps of: providing a threading tail of the running paper web by cutting it from the running paper web at least one ... | 06/03/2008 |
| 7381305 | Method and apparatus for monitoring liquid and solid contents in a froth A method and apparatus are presented for determining the quantity of liquid and solid content in a removal stream of a froth created from a suspension that is generated during a froth flotation operation. Specifically, electrodes are immersed in the froth generated ... | 06/03/2008 |
| 7377999 | Arrangement in the on-line finishing of the paper machine An arrangement in the on-line finishing of a paper machine, which includes at least one finishing stage (12, 13) for the paper web produced, has cutting equipment (16) for forming the tail as well as tail threading equipment (15) for carrying th... | 05/27/2008 |
| 7335280 | Method and equipment in the measurement of the flatness of the flow surface of the headbox of a paper machine A method in the measurement of the flatness of the flow surface of a headbox of a paper machine is disclosed. The flatness is determined by placing a measuring tool on the flat surface formed by the flow surface and measuring the position of the measuring tool at ea... | 02/26/2008 |
| 7323086 | Pollution prevention method for canvas used in paper machine The invention provides a method of preventing contamination of a canvas of a paper machine, whereby antifouling effect on the canvas can always be maintained and precise drying efficiency is ensured. With the method of preventing contamination of the canvas for pres... | 01/29/2008 |
| 7321846 | Two-wire process control loop diagnostics A diagnostic device for coupling to a process control loop includes digital communication circuitry configured to receive a digital communication signal from the process control loop. The digital communication signal is a digitally modulated analog signal on the pro... | 01/22/2008 |
| 7318882 | Method and apparatus for monitoring of the dry line in a Foudrinier paper machine and for control based thereupon In order to observe the dry line formed on the surface of wood fibre pulp on the moving wire in a Fourdrinier paper machine, its—atrea of appearance is scanned at a low angle with a thin beam cluster (A1, B1) which, being generated by a laser radiati... | 01/15/2008 |
| 7311848 | Separation apparatus The present invention relates to a method of monitoring a liquid fluid mixture and a system carrying out the method. The invention also relates to the use of the system for monitoring liquid fluid mixtures. ... | 12/25/2007 |
| 7300548 | Method and apparatus for controlling cross-machine direction (CD) controller settings to improve CD control performance in a web making machine A web making machine is monitored to identify at least one cross-machine direction (CD) actuator that is developing local mapping problems. The identified CD actuator and a segment of surrounding actuators are probed to determine a performance curve for the actuator... | 11/27/2007 |
| 7294234 | Process and device for monitoring the condition of a belt Process and apparatus for monitoring the condition of a rotating belt in a paper or cardboard machine. The process includes recording data related to a condition of the belt, and creating an at least two-dimensional image of the belt condition from the recorded cond... | 11/13/2007 |
| 7290450 | Process diagnostics A diagnostic device for use in a industrial process includes monitoring electronics or diagnostic circuitry configured to diagnose or identify a condition or other occurrence in the industrial process. The system can be implemented in a process device such as a flow... | 11/06/2007 |
| 7279072 | Method and apparatus for adjusting operation of wire section Adjusting the operation of a wire section, in which the development of the consistency of stock on the wire section (2) is determined and the effect of the consistency determined above on the formation and/or porosity of a paper web (3) is determined. ... | 10/09/2007 |
