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| Number | Title | Issue Date |
| 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 |
| 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 |
| 7229526 | Method and apparatus for the feeding of fibers A system for feeding fibres from a fibre separation step at a first pressure to a drying step at a second, lower pressure, the system comprising a sluice feeder (3) provided between the fibre separation step and the drying step. At least an outlet (14)... | 06/12/2007 |
| 7198696 | Method for manufacturing paper with a constant filler content A method of controlling the production of filler-containing paper. Filler and retention agent are delivered to a paper manufacturing system in a process of paper manufacture. The amount of filler in the paper is measured, as is also the filler concentration or the t... | 04/03/2007 |
| 7169264 | Wire foil for a paper production installation A wire foil for a paper production installation has a supporting strip and plates fixed to the latter. The plates are mutually adjoining ceramic plates. The supporting strip and the plates of ceramic material are formed, on the mutually contacting surfaces, with mut... | 01/30/2007 |
| 7147754 | System for keeping calender rolls of a paper machine clean A system for maintaining calender rolls of a paper machine clean when producing high-gloss paper or coated paper, such as LWC or MWC. To prevent a coating agent, such as coating dye, from adhering onto and soiling a smooth surface of a calender roll, with an overhea... | 12/12/2006 |
| 7146238 | Method for controlling one or more properties of a sheet of material 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... | 12/05/2006 |
| 7141141 | Apparatus and method for determination and control of paper web qualities on a papermaking machine The invention relates to an apparatus for the on-line determination of paper web moisture content and/or temperature on the dryer section of a papermaking machine. The apparatus is designed to form, in combination with a doctor means and/or a packet ventilating tube... | 11/28/2006 |
| 7138036 | Monitoring device A monitoring apparatus is provided which can ensure the prevention of a paper break even in a poor installation environment. A light source (9) illuminates light (9a) on a lateral edge (1a) of wet paper (1) and a camera (... | 11/21/2006 |
| 7137877 | Manually operated tool A manually operated implement, in particular a parting-off grinder or similar device is provided. The implement has a bracket which has a first end, which is fixed to the housing of the tool, and a second end to which is fixed a spindle which drives, for example, a ... | 11/21/2006 |
| 7115188 | Process and apparatus for monitoring dewatering in a wet section of a paper machine Process and apparatus for monitoring dewatering in a wet end section of a web production machine. The process includes measuring water flowing into the wet end section, measuring water flowing out of the wet end section, measuring conductivity of the wet web enterin... | 10/03/2006 |
| 7101461 | Method and apparatus for imaging a paper web A system and process for measuring paper formation characteristics in real time is disclosed. The system comprises apparatus used in a papermaking process, and includes a rotating forming fabric having an upper and lower surface. A paper slurry is deposited upon the... | 09/05/2006 |
| 7101832 | Cleaners containing peroxide bleaching agents for cleaning paper making equipment and method A cleaning solution for paper making equipment includes a stabilized source of peroxide in combination with a glycol ether solvent system and an alcohol ethoxylate. The peroxide system can be hydrogen peroxide stabilized with a phosphonate such as HEDP. The glycol s... | 09/05/2006 |
| 7063772 | Apparatus for treating a fibrous web Apparatus for treating a fibrous web that includes at least one supporting surface arranged to support a surface of the fibrous web, and at least one sealing device positionable adjacent a surface of the web opposite the surface of the web supported by the at least ... | 06/20/2006 |
| 7048827 | Dynamic calibration of papermaking machine Sheetmaking processes such as papermaking making systems employ water weight sensors underneath the moving water permeable wire that supports the wet stock (pulp slurry). A dynamically compensated calibration equation that equates the water weight plus fiber weight ... | 05/23/2006 |
| 7040225 | Method for reducing vibrations in rotating components Undesirable bending vibrations in at least one rotating component are reduced. An undesirable vibration is counteracted by the use of at least one actuator. A required sequence of signals to be applied to the actuator and/or an intensity level of those signals is ba... | 05/09/2006 |
| 7017483 | Method and device for reducing vibrations in rotating components Undesirable bending vibrations in at least one rotating component are reduced. An undesirable vibration is counteracted by the use of at least one actuator. A required sequence of signals to be applied to the actuator and/or an intensity level of those signals is ba... | 03/28/2006 |
| 7001486 | Vacuum device for paper web making apparatus A vacuum device for a paper web making apparatus has a housing having an outer web-facing surface and a vacuum channel extending within the housing and having an opening at the web-facing surface. A vacuum source is in fluid communication with the vacuum channel and... | 02/21/2006 |
| 6998021 | Arrangement for paper machine, and blow box In a paper machine which comprises process elements and a measuring beam, the measuring beam is arranged at least at one paper machine process element so that a measuring device for measuring quality properties of a paper web is arrangeable in the measuring beam. Th... | 02/14/2006 |
| 6989078 | System for conveying shredded pulp to an ozone reactor Methods and systems for the treatment of pulp are provided. The methods include dewatering pulp to a fiber concentration of at least 20%, shredding the dewatered pulp in a closed pulp shredding vessel, transporting the shredded pulp without compression continuously ... | 01/24/2006 |
| 6989074 | Paper pulp refiner control system and method using active hydrostatic bearings A paper pulp refiner with control system employs active hydrostatic bearings for supporting the refiner rotor, at least in part, the hydrostatic bearings are defined between the refiner rotor plates (25, 55) and stator plates (22, 60) through openings ... | 01/24/2006 |
| 6950777 | Method and system for assessing pulp and paper mill performance A system and method is provided for analyzing data obtained during manufacture of a web of paper or paperboard on a machine. The system comprises a computer including a database module, a statistical analysis module, and a processor for executing the modules. The da... | 09/27/2005 |
| 6929716 | Method for the manufacture or treatment of a material web A method for the manufacture or treatment of a material web, in particular of a paper or a cardboard web, while using a respective machine, in particular a paper machine, including the step of measuring the hardness and/or the compactness of at least one clothing, i... | 08/16/2005 |
| 6925349 | Device and method for synchronizing a plurality of electric drive units in a paper processing machine The present invention relates to a device and a method for synchronizing processes which are executed on a plurality of units (2a, 2b, 2c), in particular, in paper-processing machines, the units (2a, 2 | 08/02/2005 |
| 6911117 | Method and equipment for attenuation of oscillation in a paper machine or in a paper finishing device A method and apparatus for damping vibration in a paper machine. The apparatus having a dynamic damper which includes a weight suspended by a spring. The spring constant of the spring is changed by means of a control device in order to tune the natural frequency of ... | 06/28/2005 |
| 6905573 | Method and equipment for cleaning and maintaining rolls The surface of a web is monitored by a fault detection system (20), a machine condition monitoring system, a quality measurement system, a web moisture measurement and/or a web temperature measurement and the soiled part of the surface of the roll is detected... | 06/14/2005 |
| 6893539 | Machine for the production of a tissue web Machine and process for the production of a tissue web that includes a drying cylinder and a press shoe arrangement. The press shoe arrangement and the drying cylinder are arranged to form a nip with lateral edge areas. A plurality of contact pressing elements are a... | 05/17/2005 |
| 6881301 | Method and arrangement for controlling moisture in a multiroll calender A method and an arrangement for controlling evaporation and moisture in a multinip calender (10) when a continuous fibrous web (W) is calendered in calendering nips (1,_2,—3,—4,—5) plac... | 04/19/2005 |
| 6855230 | Method and regulation arrangement for controlling dewatering profile of a former In a paper or board machine, the cross-direction profile of a flow channel defined between a first dewatering element (52, 53) situated inside a first forming wire loop (50) and a second dewatering element (64, 65) situated inside a second formi... | 02/15/2005 |
| 6835283 | Process and device for measuring and controlling the nip pressure in the press of a paper machine The invention relates to a process for measuring and controlling the nip pressure in the press of a paper machine, particularly in a shoe press, across and/or along the web running direction. It is largely characterized by the hydraulic, static pressure being measur... | 12/28/2004 |
| 6805772 | Method and apparatus for manufacturing a fibrous material web Process and apparatus for manufacturing a fibrous material web. The apparatus includes an automatic formation regulator, and the process includes on-line measuring of formation of the fibrous material web, utilizing the on-line measured formation as a controlled var... | 10/19/2004 |
| 6793774 | Arrangement of high-pressure water devices in a paper machine and a method for arranging it in a paper machine An arrangement of high-pressure water devices in a paper machine including two or more consecutive sub-totalities for making paper is disclosed and includes pump devices for producing high-pressure water, high-pressure water operating devices located in a sub-totali... | 09/21/2004 |
| 6790316 | Method and arrangement for positioning a shoe of a shoe press/shoe calendar in a paper machine The invention relates to a method for positioning a shoe of a shoe press/shoe clender in a paper machine. In the method, the position of the shoe (11) of the shoe calender/shoe press is measured and, based on the results of the measurement, the position of th... | 09/14/2004 |
| 6772036 | Control system using process model A control system is provided for controlling a process for making paper or paper pulp. The process has a process product output at an end of the process. The controls include a process variable sensor input configured to receive a process variable related to the pro... | 08/03/2004 |
| 6755940 | Method and apparatus for caliper control of a fibrous web A method for increasing caliper control of a fibrous web as the web is wound onto a roll is provided. The method includes winding the fibrous web containing cellulosic fiber onto the roll to form a wound product and conveying the web through a nip prior to winding t... | 06/29/2004 |
| 6728592 | Streak detection in papermaking A method of detecting streaks in a web of, for example, moving paper which may be moisture, basis weight or caliper. A cross-direction profile is sensed and a moving average computed and then using minimum thresholds for the variation of the streak value from the av... | 04/27/2004 |
| 6592340 | Control system for a vacuum pump used for removing liquid and a method of controlling said pump A control system for a vacuum pump used for removing liquid from a suction washer of a pulp mill includes a pump with adjustable rotation speed and means for defining the operating point of the vacuum pump and a control/central unit wherein the performanc... | 07/15/2003 |
| 6579418 | Leakage control system for treatment of moving webs Pressurized web treatment systems include a moving web that passes through a pressurized treatment chamber having a sealing assembly with a leakage control system. Leakage control is achieved by the cooperative effect of localized leak detectors and leak ... | 06/17/2003 |
| 6577916 | Method of carrying out an optimized fiber or paper manufacturing process A method of carrying out a fiber or paper manufacturing process using a plurality of successive method steps is provided. Defined process steps are carried out by means of predefinable chemical and physical sequences and process optimization is performed,... | 06/10/2003 |
| 6547930 | Method for estimating dryer vapor pressure in papermaking machine and apparatus therefor The present invention relates to improvement in a method for estimating a setting value of a dryer steam pressure after papermaking exchange according to simulation in a papermaking machine and an apparatus therefor, where a steam pressure setting value a... | 04/15/2003 |
