Patents by Inventor Juha Lipponen
Juha Lipponen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7045036Abstract: A method and assembly is disclosed for manufacturing a sized web of paper or paperboard, the method comprising the steps of first forming the web at a headbox (1) from a stock comprising at least water and fiber, then pressing the web for water drainage, and finally drying the web by heating. Size furnish is added to the web so that at least a portion of the overall amount of size is added to the web prior to initiating the drying of the web by heating, and at least a portion of the overall amount of size is applied to the web after initiating the drying of the web.Type: GrantFiled: June 28, 2002Date of Patent: May 16, 2006Assignee: Metso Paper, Inc.Inventors: Juha Lipponen, Johan Grön, Sami Anttilainen, Juha S. Kinnunen
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Publication number: 20060060322Abstract: A processing device and a method applying the same for processing a coated or uncoated fibrous web is provided. The device comprises a belt configured to extend around a guiding element, at least one counter-element being disposed outside said belt to provide a contact area with the belt, such that the belt and the counter-element establish therebetween a web processing zone for passing a web to be processed therethrough. The processing zone length is defined by the disposition of the belt's guiding element and/or by the design of the counter-elements. A contact pressure applied to a web in the processing zone is configured to be within the range of between about 0.01 MPa and about 70 MPa.Type: ApplicationFiled: January 29, 2003Publication date: March 23, 2006Inventors: Mika Viljanmaa, Juha Lipponen, Vilho Nissinen, Pekka Koivukunnas, Henri Vaittinen, Reijo Pietikainen, Kari Hasanen, Risto Sutti, Matti Lares, Pekka Linnonmaa, Markku Kyytsonen, Matti Tervonen, Heikki Kettunen, Kari Holopainen
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Publication number: 20060057302Abstract: The surface of a web is coated with a dry coating powder. The coating powder has inorganic material and polymeric binder material. The polymeric binder material is selected in such a manner that when increasing the temperature above the glass transition temperature the ratio G?/G? is at the most equal to the ratio G?/G? in the glass transition temperature.Type: ApplicationFiled: November 14, 2003Publication date: March 16, 2006Inventors: Juha Maijala, Kaisa Putkisto, Jyrki Hakola, Johan Gron, Juha Lipponen
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Publication number: 20060027348Abstract: A web of paper or paperboard is manufactured by first forming a base web that is dried on the press section of papermaking machine. The base web is further dried on the dryer section of the papermaking machine and a base web speed differential, or draw, is set between the press section and the first dryer cylinder group of the dryer section, whereupon at least one surface of the web is surface sized. The draw is set to 3% maximum, and a surface size furnish is applied having a solids content of at least 15% of the total amount of size components and liquid in the furnish.Type: ApplicationFiled: October 8, 2003Publication date: February 9, 2006Inventors: Juha Lipponen, Johan Gron, Erkki Ilmoniemi, Kaarlo Lackman, Pekka Pakarinen, Kari Juppi, Pasi Ahonen
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Processing device and method of operating the device for processing a coated or uncoated fibrous web
Publication number: 20050251977Abstract: A processing device and method applying the same for processing a coated or uncoated fibrous web is provided. The device comprises a belt configured to extend around a guiding element, at least one counter-element being disposed outside said belt to provide a contact area with the belt, such that the belt and the counter-element establish therebetween a web processing zone for passing a web to be processed therethrough. The processing zone length is defined by the disposition of the belt's guiding element and/or by the configuration of the counter-elements. The contact pressure applied to a web in the processing zone is within the range of between about 0.01 MPa and about 200 MPa.Type: ApplicationFiled: January 29, 2003Publication date: November 17, 2005Inventors: Juha Lipponen, Vilho Nissinen, Pekka Koivukunnas, Mika Viljanmaa, Henri Vaittinen, Reijo Pietikainen, Kari Hasanen, Risto Sutti, Eero Suomi, Pekka Linnonmaa, Markku Kyytsonen, Matti Tervonen, Heikki Kettunen, Kari Holopainen -
Processing device and method of operating the device for processing a coated or uncoated fibrous web
Publication number: 20050251976Abstract: A processing device and a method of applying the same for processing a coated or uncoated fibrous web are provided. The device comprises a belt configured to extend around a guiding element, at least one counter-element being disposed outside said belt to establish a contact area with the belt, such that the belt and the counter-element establish therebetween a web processing zone for passing a web to be processed therethrough. The processing zone length is defined by the disposition/adjustment of the belt's guiding element and/or by the design of the counter-elements. The contact pressure applied to a web in the processing zone is configured to be within the range of between about 0.01 MPa and about 70 MPa.Type: ApplicationFiled: January 29, 2003Publication date: November 17, 2005Inventors: Juha Lipponen, Vilho Nissinen, Pekka Koivukunnas, Mika Viljanmaa, Henri Vaittinen, Reijo Pietikainen, Kari Hasanen, Risto Sutti -
Patent number: 6916404Abstract: A method and an apparatus for web threading in a drying section of a paper machine or the like. A leader (24) and a so called run-down strip are formed by cutting in the web coming to the drying cylinder in the drying section. An underpressure box (18) is arranged at the opening gap between the drying cylinder (14) and the drying wire, on that side of the wire which is away from the web, whereby this box can direct against the web an underpressure which is controllable in the machine's cross direction. The underpressure box creates an underpressure region (34?) between the leader and the underpressure box, the region having an underpressure p1 at the detachment point, i.e. in the area where the wire is detached from said drying cylinder (14), which underpressure is sufficient to detach the leader from said drying cylinder.Type: GrantFiled: October 26, 2001Date of Patent: July 12, 2005Assignee: Metso Paper, Inc.Inventors: Antti Komulainen, Kari Juppi, Jorma Laapotti, Reijo Jokinen, Matti Kurki, Juha Lipponen, Markku Lyytinen, Samppa J. Salminen
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Publication number: 20050003083Abstract: A method is disclosed for manufacturing a surface sized web of paper or paperboard, the method comprising the step of applying to at least one side of the web an aqueous furnish of size. According to the method, the solids content of the size furnish being applied is at least 15% and the size frunish is applied to one side of the web by an amount not greater than 5 g/m2 as aqueous furnish of size applied to the web.Type: ApplicationFiled: July 1, 2002Publication date: January 6, 2005Inventors: Juha Lipponen, Johan Gron
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Publication number: 20040177939Abstract: A method and assembly is disclosed for manufacturing a sized web of paper or paperboard, the method comprising the steps of first forming the web at a headbox (1) from a stock comprising at least water and fiber, then pressing the web for water drainage, and finally drying the web by heating. Size furnish is added to the web so that at least a portion of the overall amount of size is added to the web prior to initiating the drying of the web by heating, and at least a portion of the overall amount of size is applied to the web after initiating the drying of the web.Type: ApplicationFiled: February 11, 2004Publication date: September 16, 2004Inventors: Juha Lipponen, Johan Gron, Sami Anttilainen, Juha S. Kinnunen
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Patent number: 6733630Abstract: Method and assembly for supporting a web (1) during the postprocessing of a web of paper or board, in which method the web is passed from a preceding device to at least one next downstream located web treatment device (4) wherein to at least one side of the web (1) is applied a treatment agent causing wetting of said side of said web, and the web (1) exiting said web treatment device is passed to at least one dryer means (8). The web (1) is contactingly supported in a continuous and unbroken manner at least from said web treatment device (4) to said dryer means (8). Advantageously, the web (1) is dried by means of at least one dryer (3) before taking the web to the web treatment device (4), and the web is contactingly supported in a continuous and unbroken manner at least from said dryer means (3) preceding said web treatment device (4) to said dryer means (8) located downstream next to said web treatment device.Type: GrantFiled: July 31, 2001Date of Patent: May 11, 2004Assignee: Metso Paper, Inc.Inventors: Rauno Rantanen, Juha Lipponen
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Publication number: 20040035539Abstract: A method and an apparatus for web threading in a drying section of a paper machine or the like. A leader (24) and a so called run-down strip are formed by cutting in the web coming to the drying cylinder in the drying section. An underpressure box (18) is arranged at the opening gap between the drying cylinder (14) and the drying wire, on that side of the wire which is away from the web, whereby this box can direct against the web an underpressure which is controllable in the machine's cross direction. The underpressure box creates an underpressure region (34′) between the leader and the underpressure box, the region having an underpressure p1 at the detachment point, i.e. in the area where the wire is detached from said drying cylinder (14), which underpressure is sufficient to detach the leader from said drying cylinder.Type: ApplicationFiled: April 16, 2003Publication date: February 26, 2004Inventors: Antti Komulainen, Kari Juppi, Jorma Laapotti, Reijo Jokinen, Matti Kurki, Juha Lipponen, Markku Lyytinen, Samppa J. Salminen
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Publication number: 20040026054Abstract: A surface-sized paper web is made by supplying pulp from a headbox (100) where additives and/or fillers and/or fines are admixed into the pulp, to the wire section (200), where water is removed. The web is guided from the wire section (200), to the press section (300), the front drying section (400), is surface-coated in the coating section (500) dried in the post-drying section (600), and reeled by a reeler (800). In the headbox (100) starch and optionally hydrofobic size are admixed or layered into the pulp, so that on at least one side of the web an essentially dense surface is formed, on which in surface-coating a coating paste is spread out, which has a high dry matter content, whereby a bond is achieved in direction z inside the web in between the base paper and the surface-coating layer spread out on the surface.Type: ApplicationFiled: August 4, 2003Publication date: February 12, 2004Inventors: Erkki Ilmoniemi, Juha S Kinnunen, Juha Lipponen
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Patent number: 6526854Abstract: The invention relates to a method for cutting a web feeding tail and a corresponding cutting device. In the method the web feeding tail is detached from a roll and tension ed for cutting. The web feeding tail is cut by the blade of a cutting device, without a counter blade, and the cut web feeding tail is guided forwards in the desired direction to a next web feeding device. The cutting device is located on the opposite side of the web feeding tail to the aforesaid following web feeding device. The web feeding tail is cut by the blade over the entire width of the web feeding tail. At the same time, the cut web feeding tail is guided in a single layer from the blade to the aforesaid web feeding device.Type: GrantFiled: July 26, 2001Date of Patent: March 4, 2003Assignee: Metso Paper, Inc.Inventors: Paul I Kytönen, Pekka Koivukunnas, Juha Lipponen
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Patent number: 6523278Abstract: The invention concerns a dryer section, comprising at least one dryer group (R) that makes use of single-wire draw and/or twin-wire draw and at least one suction roll (10) with which the web (W) to be dried is in direct contact. The surface construction of the suction roll (10) is of a fine structure so that the web (W) can be passed to run over the suction roll (10) in direct contact with the roll so that the web (W) is not damaged.Type: GrantFiled: February 20, 2001Date of Patent: February 25, 2003Assignee: Metso Paper, Inc.Inventors: Laurie Coulson, Kari Juppi, Jaakko Kallioniemi, Pekka Koivukunnas, Antti Komulainen, Juha Lipponen, Petri Norri
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Patent number: 6423184Abstract: A method and an equipment for regulation of the initial part of the dryer section in a paper machine. Moisture is removed from the paper web in the press section (10) and the paper web is dried in the dryer section (R). The paper web is dried against heated faces of drying cylinders (20). The surface temperatures of the first drying cylinders (20) in the dryer section (R) are measured. The dry solids content/moisture content of the paper web (W) and the temperature of the paper web (W) before said first drying cylinders (20) are measured. In view of producing the desired running situation, based on the measurement results obtained, the surface temperatures of said first drying cylinders (20) and/or the dry solids content/moisture content and/or the temperature of the paper web (W) before said first drying cylinders (20) is/are regulated.Type: GrantFiled: May 30, 2001Date of Patent: July 23, 2002Assignee: Metso Paper, Inc.Inventors: Harri Vähätalo, Juha Kaihovirta, Juha Lipponen, Taisto Huhtelin
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Patent number: 6365004Abstract: A method and apparatus effect drying of a paper web using a plurality of heated drying cylinders and at least one air impingement module having a hood. The paper web is brought into operative contact with the heated drying cylinders, and at least one of the final moisture content, quality, and cross-direction profile of the paper web is regulated. The regulation is effected by adjusting the efficiency of air impingement drying of the paper web, by adjusting at least one of the blowing velocity of the medium (typically air) blown against the paper web, the humidity of the blowing medium, and the distance of the hood of the impingement module from the paper web. At least one of the final moisture content of the paper web and its quality may also be regulated by adjusting the steam pressure of one or more drying cylinder groups.Type: GrantFiled: August 17, 2000Date of Patent: April 2, 2002Assignee: Metso Paper, Inc.Inventors: Kristian Hamstr{haeck over (o)}m, Harri Happonen, Antti Kuhasalo, Juha Lipponen, Järkko Nurmi, Juha Ojanen, Hans Sundqvist
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Publication number: 20020007927Abstract: A method and an equipment for regulation of the initial part of the dryer section in a paper machine. Moisture is removed from the paper web in the press section (10) and the paper web is dried in the dryer section (R). The paper web is dried against heated faces of drying cylinders (20). The surface temperatures of the first drying cylinders (20) in the dryer section (R) are measured. The dry solids content/moisture content of the paper web (W) and the temperature of the paper web (W) before said first drying cylinders (20) are measured. In view of producing the desired running situation, based on the measurement results obtained, the surface temperatures of said first drying cylinders (20) and/or the dry solids content/moisture content and/or the temperature of the paper web (W) before said first drying cylinders (20) is/are regulated.Type: ApplicationFiled: May 30, 2001Publication date: January 24, 2002Inventors: Harri Vahatalo, Juha Kaihovirta, Juha Lipponen, Taisto Huhtelin
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Patent number: 6264792Abstract: 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 pressed paper web by at least one dryer, calendering the dried web by the multi-nip calender, measuring a cross-machine moisture profile or a variable relative thereto, and altering the moisture of the web so that the moisture profile of the web in the cross-direction is even when the web enters the first nip of the calender.Type: GrantFiled: November 13, 1998Date of Patent: July 24, 2001Assignee: Valmet CorporationInventors: Harri Kuosa, Markku Kyytsönen, Juhani Partanen, Kari Sipi, Eero Suomi, Antti Heikkinen, Mikko Tani, Juha Lipponen, Mika Tammenoja, Kari Juppi
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Patent number: 6070340Abstract: A dryer group with single-wire draw in the dryer section of a paper machine including heated drying cylinders having a smooth face against which a paper web to be dried is brought into direct contact, reversing cylinders and a drying-wire guided by guide rolls, the drying cylinders and the reversing cylinders in a loop whereby the drying cylinders are situated outside the wire loop and the reversing cylinders are situated in gaps between the drying cylinders and inside the wire loop of the drying wire. The drying cylinders consist of large cylinders and small cylinders, the diameter D of the large cylinders being larger than the diameter d of the small cylinders. The small cylinders are situated in gaps between adjacent pairs of large cylinders so that their centers of rotation are on a level substantially different from the level of the centers of rotation of the large cylinders.Type: GrantFiled: April 17, 1998Date of Patent: June 6, 2000Assignee: Valmet CorporationInventor: Juha Lipponen
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Patent number: 6003241Abstract: A drying unit in a dryer section of a paper or board machine including a drying wire guided in a loop, a large-diameter impingement-drying and/or through-drying cylinder arranged inside the drying-wire loop and smaller diameter smooth-faced heated contact-drying cylinders arranged on top of the large cylinder and/or in the vicinity thereof and at both sides thereof. The impingement-drying and/or through-drying cylinder is placed in a space below the floor level of the paper machine hall and provided with an openable and closable blow hood so that the removal of broke out of connection with the hood takes place substantially by the force of gravity. The central axes of the contact-drying cylinders placed in the vicinity of the large cylinder are placed in the vicinity of, or above, the floor level of the paper machine hall. A curve sector of the paper web on the outer face of the drying wire over the large cylinder greater than about 180.degree..Type: GrantFiled: April 22, 1998Date of Patent: December 21, 1999Assignee: Valmet CorporationInventors: Antti Komulainen, Juha Kaihovirta, Juha Lipponen, Martti Salminen