Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 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 |
| 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 |
| 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 |
| 7204914 | System and method for controlling a processor including a digester utilizing time-based assessments A system for controlling a processor having at least one sampling port connected to a stage of the processor in order to sample a reactant product from the processor. The system includes a controller configured to control a processing parameter of the processor base... | 04/17/2007 |
| 7118649 | Device and method for manufacturing speaker diaphragm, the diaphragm, and speaker A loudspeaker diaphragm manufacturing apparatus of the present invention comprises; a paper tank, a pulp dispersion reservoir tank connected to the paper tank, a stirring means provided in the paper tank, a water inlet unit connected to the paper tank, a drain unit ... | 10/10/2006 |
| 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 |
| 6949854 | Method and apparatus for a continuously variable-ratio transmission A method and apparatus for providing a continuously variable transmission (CVT) is described. The CVT comprises permanent magnets to couple power, a coefficient of coupling controlled by an electronic servo control loop. Wherein torque multiplication is achieved by ... | 09/27/2005 |
| 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 |
| 6799082 | Process control methods and apparatus The present invention provides a method for controlling a process by inputting a deviation between setpoint and process variables to a controller to calculate a controlled/manipulated variable, and then inputting the controlled/manipulated variable to the process, w... | 09/28/2004 |
| 6770171 | Method and system for controlling headbox in a paper/board machine A paper/board machine headbox (10) has a stock inlet header (J), a tube bank (11), a turbulence generator (13) and a slice opening (14) which is provided with a profile bar. The headbox (10) is provided with cross direction measuri... | 08/03/2004 |
| 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 |
| 6752165 | Refiner control method and system A system and method for monitoring and control operation of a rotary disk refiner. The method regulates refiner operation in response to a process variable preferably in relation to a setpoint. The variable can be temperature, pressure, and/or stock consistency, ref... | 06/22/2004 |
| 6746572 | Method for determining a characteristic value for the binding force potential of suspended paper fibers and use of this method Method for determining a characteristic value for a binding force potential of paper fibers in a fibrous suspension. The method includes measuring an air content of the fibrous suspension and deriving the characteristic value from the measuring. ... | 06/08/2004 |
| 6647312 | Adaptive control methods and apparatus using frequency analysis of time series data The present invention provides a method for controlling a process by calculating a manipulated variable from a deviation between setpoint and control output variables and then using the manipulated variable, wherein the time-series data of the control out... | 11/11/2003 |
| 6640152 | Modeling and control of sheet weight and moisture for paper machine transition Headbox transient responses for sheet weight and moisture are modeled as a combination of two sets of time constants and dead time delays. One set represents a shorter delay with faster response dynamics, the fast mode weight and moisture responses, and t... | 10/28/2003 |
| 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 |
| 6491792 | Apparatus for controlling a headbox in a paper machine Method and apparatus for controlling the mixing proportions of feed streams being supplied to a headbox, using devices for sampling two or more of the feed streams upstream of the headbox and devices for measuring concentration of constituents in or other... | 12/10/2002 |
| 6482296 | Integrated machine control method and machine control module The present invention relates to a method for controlling a papermaking machine/board machine/tissue machine or the like, which papermaking machine/board machine/tissue machine or the like includes basic unit assembly groups, such as a headbox, a wire sec... | 11/19/2002 |
| 6466839 | Fast CD and MD control in a sheetmaking machine A system of providing fast machine direction (MD) and cross direction (CD) basis weight adjustments using a simultaneous multi-point water weight sensor which provides independent MD and CD measurements is described. The water weight sensor is placed unde... | 10/15/2002 |
| 6440270 | Method and apparatus for controlling dryer section of paper machine In controlling the dryer section of a paper machine, the basis weight and moisture of the paper web, the energy fed into the drying cylinders of the dryer section and the machine speed are measured, and then the surface temperature of the drying cylinders... | 08/27/2002 |
| 6421575 | Method and control arrangement for controlling sheet-making process The invention relates to a method and an arrangement for controlling a sheet-making process. In the solution, a sheet matching desired values is manufactured. A measuring unit measures the state of the process to produce one or more measurement value repr... | 07/16/2002 |
| 6413368 | Foam forming method and apparatus Apparatus and process for producing foam formed fibrous web in which the furnish is made up by mixing a thin water slurry of fibers at a consistency in the range of from about 0.5 to about 7 weight percent fibers with sufficient aqueous foam containing a ... | 07/02/2002 |
| 6368458 | Calender press for a paper-making machine with thermally compensated top and bottom rolls and low nip load A calender press for use in a paper-making machine includes a top roll positioned adjacent to a nip and rotatable about a longitudinal axis thereof. The top roll has a length and circumferential perimeter. The length extends in the direction of and is lon... | 04/09/2002 |
| 6356798 | Method of operating a machine for cutting stacks of material in sheets A method of operating a machine for cutting stacks of material in sheets. The machine's basic settings are established in accordance with parametric settings (machine parameters). Specific parameters (program parameters) are permanently assigned to an ove... | 03/12/2002 |
| 6352615 | Method and equipment in a paper/board machine for regulation of the difference of draw The invention concerns an equipment in a paper/board machine for regulation of the difference of draw. In the solution in accordance with the invention, the difference of draw in the web is regulated on the basis of the measured tension of the web. Prefer... | 03/05/2002 |
| 6290816 | Paper machine with closed loop control system A paper machine for making a fiber web includes an approach flow system with a plurality of control modules. Each control module controls one of a plurality of adjustable input parameters. A wet end receives a fiber suspension from the approach flow syste... | 09/18/2001 |
| 6280573 | 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 ... | 08/28/2001 |
| 6270628 | Method for detecting contamination and/or damage in a face running through a nip in a paper machine or in a paper finishing machine A method for detecting contamination on or damage to a web-contacting face in a paper machine or a paper finishing machine, including the steps of detecting vibrations of the web-contacting face over a period of time by means of a plurality of detectors a... | 08/07/2001 |
| 6264792 | Method for producing calendered paper A method and apparatus for producing calendered paper by an on-line manufacturing system comprising at least a paper machine and a multi-nip calender. The method comprises following steps: removing water from a formed paper web by pressing, drying the pre... | 07/24/2001 |
| 6254730 | Impact angle changing shower The invention provides a novel impact angle changing shower for spraying a fluid upon a moving belt surface while the belt travels at a selected belt velocity. The shower includes nozzles journaled to rotation about an axis in a plane normal to the belt s... | 07/03/2001 |
| 6248215 | Calender and method for treating material webs in the calender Calender and method for treating a material web. The calender includes a plurality of rolls in which each roll has a rotational axis. The rotational axes of the plurality of rolls are arranged to be substantially located in a press plane, and a plurality ... | 06/19/2001 |
| 6238522 | Method and apparatus for measuring sheet thickness in a paper-making machine A method and apparatus for measuring thickness of a fiber material during manufacture of the fiber material, especially paper in a paper-making machine, comprises a gamma radiation transceiver in communication with a processing/control system. The gamma r... | 05/29/2001 |
| 6231722 | Method and system for monitoring the process of separation of a web A method and system for monitoring a separation process of a web in a paper machine in which the web is separated from a roll and passed into a free draw, which is preferably the first free draw of the web in the paper machine. A separation point of the w... | 05/15/2001 |
| 6228222 | Press arrangement and method thereof A method for the treatment of a material web and a press arrangement with a plurality of press gaps. A roll has a flexible press jacket supported from an inside, and forms a respective press gap with each of at least two further driven rolls. The drive po... | 05/08/2001 |
| 6217710 | Process for regulating a screw press The invention refers to a process for regulating a screw press, particularly for dewatering a pulp suspension. It is mainly characterized by the speed being varied as a function of the torque.... | 04/17/2001 |
| 6207017 | Process and device for determining the effect of adjustment of final control elements A method for determining the effect of an adjustment of actuators used in the manufacture of web of material which are arranged spatially over the width of the web and influence the properties of the web of material, the method being characterized by the ... | 03/27/2001 |
| 6200426 | Paper machine with a controllable electro-magnetic clutch A paper-making machine or an off-line coater includes a rotatable drive unit and a rotatable driven element in the form of a roll, cylinder, pulley and/or gear. A clutch includes a rotatable input shaft coupled with the rotatable drive unit. At least one ... | 03/13/2001 |
| 6187146 | Mounting arrangement for wet end weight measurement system A mounting system for removably mounting a sensor array adjacent the wire of a papermaking machine. The mounting system comprises an elongate base member formed with a tongue or groove with a corresponding interlocking groove or tongue formed on the senso... | 02/13/2001 |
| 6174413 | Device for detecting and correcting a fiber orientation cross direction profile change Process and a device for detecting a change in the fiber orientation cross-direction profile of a paper or cardboard web in the manufacturing process on a paper or cardboard machine. It is recognized that a change in the fiber orientation cross-direction ... | 01/16/2001 |
