...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Application No. | Application Title | Issue Date |
| 20110284178 | APPARATUS AND METHOD FOR CONTROLLING CURLING POTENTIAL OF PAPER, PAPERBOARD, OR OTHER PRODUCT DURING MANUFACTURE A method includes receiving a measurement associated with an anisotropy of a first surface and a measurement associated with an anisotropy of a second surface of a sheet of material. The method also includes adjusting an operating parameter associated with a headbox bas... | 11/24/2011 |
| 20110139384 | METHOD AND AN APPARATUS FOR CONTROLLING A FLOW OF PULP SUSPENSION Apparatus and methods for controlling the flow of a pulp suspension from a container in which the pulp is processed or stored are disclosed. The container is pressurized to a first pressure and includes an outlet for the pulp suspension, a pump includes an inlet and an ... | 06/16/2011 |
| 20110024069 | METHOD FOR OPTIMIZING THE ENERGY BALANCE IN FORMING SECTIONS IN MACHINES FOR THE PRODUCTION OF FIBROUS WEBS, AND FORMING SECTION The invention relates to a method for optimizing the energy balance of a forming section in a machine for producing fibrous webs, in which a fiber suspension, which is fed to the forming section by way of a material ramp after the immobility point is reached, is passed ... | 02/03/2011 |
| 20100319866 | MEASURING OF WEB Optical radiation sources functioning on different optical bands radiate on different optical bands and focus optical radiation on a region in a web surface as pulses in such a manner that illumination areas of the pulses overlap on the plane of the web. At most one opt... | 12/23/2010 |
| 20100300636 | BELT MEANDERING PREVENTIVE DEVICE OF USED PAPER RECYCLING APPARATUS, PAPER MAKING DEVICE, AND USED PAPER RECYCLING APPARATUS In a used paper recycling apparatus of furniture size that can be installed in a small shop or room, this is a belt meandering preventive device of a simple structure for executing the paper making process for manufacturing used paper pulp at low trouble rate and high r... | 12/02/2010 |
| 20100276094 | Apparatus For Washing And Dewatering Pulp, A System For Controlling Such An Apparatus, And A Method For Processing Pulp In Such An Apparatus Methods for processing pulp in an apparatus for washing and dewatering pulp and a system for controlling this apparatus are provided. The apparatus includes a pair of rotatable press rolls installed in vats and including a press nip therebetween, an inlet for feeding th... | 11/04/2010 |
| 20100276099 | SIMULATION METHOD, FIBER ORIENTATION CONTROL METHOD AND FIBER ORIENTATION CONTROL APPARATUS A method includes steps of: expressing changes of velocity components of a paper material at an exit of a slice lip by using a mathematical model, wherein the changes of velocity components are caused by manipulating an edge flow adjustment means (or a side bleed adjust... | 11/04/2010 |
| 20100269996 | METHOD OF DETECTING AND REDUCING CONTAMINATION IN PAPERMAKING BOILER SYSTEMS This invention relates to a method and system for detecting contamination of boiler condensate and/or boiler feedwater in a papermaking process. The method includes measuring an oxidation-reduction potential at one or more locations in the boiler condensate and/or the b... | 10/28/2010 |
| 20100258257 | Method of and Apparatus for Controlling the Height of a Column of Material in a Vessel Upstream of a Pump A method of and an apparatus for controlling the height of a material column in a vessel upstream of a pump, in which method material is conveyed into an upper portion of the vessel, electrical signals are provided on the basis of the presence of material at predetermin... | 10/14/2010 |
| 20100243185 | APPARATUS AND METHOD FOR TREATMENT OF PULP Washing apparatus as well as methods for washing and dewatering a cellulose pulp are disclosed comprising a rotary drum with outer compartments for pulp washing, and a stationary casing surrounding the drum to define an annular space between the casing and the drum whic... | 09/30/2010 |
| 20100147479 | Methods for producing recycled pulp, methods for modifying pulp fiber surfaces and dirts, as well as pulp processing equipments Pulp processing equipment used to produce high-quality recycled pulp with little damage to fibers, high brightness and low residual ink by means of a force selectively acting on fiber surfaces during the process of recycling waste paper is disclosed. Moreover, fiber sur... | 06/17/2010 |
| 20100078140 | 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 elonga... | 04/01/2010 |
| 20100024996 | METHOD AND ARRANGEMENT FOR THE TREATMENT OF CELLULOSE PULP A washer for washing and dewatering cellulose pulp is disclosed including a rotatable drum with a plurality of axial compartment walls defining a plurality of outer compartments, a stationary cylindrical casing enclosing the drum, and at least one axially disposed seal ... | 02/04/2010 |
| 20100012285 | Method And Apparatus For Selective Folding Or Redirecting The present disclosure relates to a method for redirecting cut web products and/or rejecting cut web products. The method comprises advancing a plurality of cut web products along a first path and providing a redirecting or folding device for folding the plurality of cu... | 01/21/2010 |
| 20090229777 | WEB PRODUCTION WITH INCREASED PROCESS EFFICIENCY A conservation control system is provided for integration with an cross-direction controller on a sheet making machine. The conservation control system receives inputs from the cross-direction controller and accepts and/or modifies the controller commands to a profiler ... | 09/17/2009 |
| 20090056895 | Method and a Device for Feeding Pulp from a Dewatering Unit A device for feeding cellulose-containing pulp from a dewatering unit, the dewatered pulp being discharged via an outlet included in the dewatering unit to a reception means positioned below the outlet, whereupon the pulp is transported to a stand pipe via an inlet incl... | 03/05/2009 |
| 20090025893 | Method and Apparatus for Determining the Total Peroxide Content of Pulp Suspension A method and an apparatus for determining the total peroxide content of a cellulose pulp suspension in the pulp suspension bleaching stage, wherein the bleaching chemical is peroxide. A sample is taken from the pulp suspension, which sample is measured in a measuring de... | 01/29/2009 |
| 20080264591 | Apparatus and method for controlling product grade changes in a paper machine or other machine A paper machine includes equipment for processing or producing a product in a continuous manner, such as a paper sheet. A grade change occurs when the equipment transitions from producing or processing a product having a first grade to producing or processing a product ... | 10/30/2008 |
| 20080245495 | Apparatus for Measuring Tension in a Paper Web Apparatus for measuring tension or a tension alteration in a paper web. At least one measurement device includes a number of measurement bodies and a number of fluid supply devices, which are intended to apply a fluid pressure to the web. The fluid supply devices are so... | 10/09/2008 |
| 20080155851 | VAPOR HOOD FOR A PAPER MACHINE AND/OR PAPERBOARD MACHINE A vapor hood for a paper machine and/or paperboard machine, in particular for the drying section of a paper machine and/or paperboard machine, having a hood housing, wherein an inner housing surface of the hood housing delimits an internal space in which a process area,... | 07/03/2008 |
| 20080083523 | Temperature control device A temperature control device is disclosed for a metering head of a paper machine. The control device includes a metering head fabrication, the fabrication defining an internal cavity. In use of the metering head, the cavity is filled with a liquid. A displacement tube i... | 04/10/2008 |
| 20080078519 | Rapid Fatty Acid Assay for Use in Pulp Pitch Control Methods are provided for determining the surface fatty acid content in a wood pulp or whitewater sample. The methods comprise reacting free fatty acids which are present on the surface of the wood pulp fibers in the sample or in the whitewater with one or more reagents ... | 04/03/2008 |
| 20070272384 | Suction or Ventilation Roll The invention relates to a suction or ventilation roll of a machine for producing and/or finishing a paper, cardboard, tissue or other fibrous material web (2). Said roll comprises a rotatable, perforated roll jacket (1) and at least one pressure zone (... | 11/29/2007 |
| 20070267163 | Used paper recycling apparatus and its constitutent devices A used paper recycling apparatus being installed in a room of a small shop or the like, friendly to the environment, low in running cost, and capable of maintaining a high confidentiality. The apparatus includes, in an apparatus case of furniture size, a pulp making sec... | 11/22/2007 |
| 20070158040 | Method and apparatus for estimating an optimal dosage of bleaching agent to be used in a process for producing pulp A method and an apparatus for estimating an optimal dosage of bleaching agent to be used in a process for producing pulp of a required brightness value involve a set of wood chip properties characterizing the wood chips as estimated by a measurement system. Correspondin... | 07/12/2007 |
| 20070158044 | METHOD AND PLANT FOR PRODUCING A FIBROUS WEB The present invention relates to a method and a corresponding plant for producing a fibrous web, in particular a paper web, paperboard web or tissue web. The formation of the fibrous web is defined online as a controlled variable and is held at a preselectable set-point... | 07/12/2007 |
| 20070137804 | Methods for producing recycled pulp, methods for modifying pulp fiber surfaces and dirts as well as pulp processing equipments The present invention aims to produce high-quality recycled pulp with little damage to fibers, high brightness and low residual ink by means of a force selectively acting on fiber surfaces during the process of recycling waste paper. Moreover, fiber surfaces are modifie... | 06/21/2007 |
| 20070095494 | Method for optimizing production of paper or board The invention relates to a method in the manufacture of a fiber-based web-like product for optimizing the operation of the process being used, in which method quality factors are defined for the product being manufactured control variables, which affect the state of the... | 05/03/2007 |
| 20070068644 | Method and apparatus for forming a paper or tissue web A method and apparatus for transferring a vibrational force to the wire of a papermaking machine in order to re-align the fibers of the web forming on the wire or to clean press section felts. In some embodiments, the apparatus is a vibrational device including at least... | 03/29/2007 |
| 20070029060 | Method and apparatus for applying a material to a wide high-speed web A high-speed apparatus for applying material to cigarette paper during manufacture uses at least two independently operable, moving orifice devices, each positioned to deposit horizontal bands of material on a paper web at the dry end of a Fourdrinier wire. The resultin... | 02/08/2007 |
| 20060278353 | Method and apparatus for estimating relative proportion of wood chips species to be fed to a process for producing pulp Improved methods and apparatus for estimating and controlling relative proportion of wood chips originating from a plurality of sources characterized by various wood species, in a mass of wood chips to be fed to a process for producing pulp, use light reflection-related... | 12/14/2006 |
| 20050211404 | 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 pre... | 09/29/2005 |
| 20050034824 | 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 based on... | 02/17/2005 |