Solid Means Acting On Formed Web Patents (Class 162/361)
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Publication number: 20090199989Abstract: A roller for thermal pressure treatment of web-type media such as paper or non-wovens, provided with an inner heating system and comprising a base body made of hardened and tempered wrought steel or alloyed cast iron, an intermediate layer applied to the surface thereof and a hard wearing layer applied thereon. Peripheral bores or canals extending parallel to the axis are arranged in the base body of the roller at a regular distance from the surface, being distributed in a regular manner on the circle formed about the roller axis. The materials used and the arrangement of the peripheral bores are such that the roller can be used in calanders in a method wherein the surface temperatures of the roller exceed 140° C., the heating capacity is more than 35 kW/m2, operational speeds are more than 1200 m/min, line pressures are greater than 250 kN/m and the processed webs of material weigh more than 45 g/m2 and have a degree of moisture of over 5%.Type: ApplicationFiled: July 31, 2003Publication date: August 13, 2009Inventor: Heinz-Michael Zaoralek
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Publication number: 20090151886Abstract: A papermaking apparatus having a machine direction, cross machine direction, and a z-direction. The papermaking apparatus also has a web stabilization device. The web stabilization device has a plurality of surface features that have a feature depth of greater than about 0.02?.Type: ApplicationFiled: October 13, 2008Publication date: June 18, 2009Inventors: Vincent Kent Chan, Young Ho Chung, Hasan Eroglu
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Publication number: 20080283209Abstract: This invention relates to a rail for the compliant supporting of a mesh in the region of a double mesh zone of a double mesh section of a machine for producing a fibrous web, including a movable head rail, which extends transverse to the running direction of the mesh and over which the mesh slides at least in some regions during operation of the machine, a movable bearer rail, which is rigidly connected to the movable head rail and extends likewise transverse to the running direction of the mesh and is guided in a fixed structure, a fixed guide rail, which is rigidly arranged in the fixed structure and extends in turn transverse to the running direction of the mesh, a compliant pressing apparatus, which is arranged between the movable bearer rail and the fixed guide rail in order to move the movable bearer rail together with the moveable head rail between a resting position and an operating position in which the movable head rail can be pressed with a selectable force onto the mesh, and a compliant return appType: ApplicationFiled: May 28, 2008Publication date: November 20, 2008Inventors: Helmut Faix, Peter Martin
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Patent number: 7438784Abstract: A method and a device for calendering a paper or paperboard web, in which the web is led first into a calendering step and then into a reeling step. At least one edge area of the web is calendered separately in the reeling step.Type: GrantFiled: June 17, 2004Date of Patent: October 21, 2008Assignee: Metso Paper, Inc.Inventor: Erkki Kirveskari
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Patent number: 7422659Abstract: A method and an arrangement for treating a web (2) of paper or board is described, in which a functional coating (5) is applied to the web (2) and the web (2) is then calendered. It is wished to obtain a web provided with a functional coating in a cost-effective fashion. This is achieved through the following combination: the functional coating (5) is applied without direct contact, the web (2) is calendered online in conjunction with the application of the coating, calendering takes place in a broad nip (18) in a shoe calender (9), which exhibits a shoe roller (10) with a rotating outer cover (11) and a squeeze roller (14).Type: GrantFiled: May 4, 2005Date of Patent: September 9, 2008Assignee: Voith Paper Patent GmbHInventors: Joerg Rheims, Ulrich Rothfuss
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Patent number: 7383641Abstract: A through air dryer (TAD) fabric having a composite configuration whereby side fabric portions made of a more resistant material are woven to the main body portion of the fabric. Side fabric portions that are not protected from the paper web, and therefore exposed to harsher environmental conditions than the portion of the fabric covered by the paper web, deteriorate faster. By replacing the side portions that are exposed to harsher environment with more resistant material, the TAD fabric will last longer.Type: GrantFiled: September 7, 2006Date of Patent: June 10, 2008Assignee: Voith Paper Patent GmbHInventors: Lippi Alves Fernandes, Sanjay Patel
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Publication number: 20080036135Abstract: A stationary working surface of a one roll microcreper member is of plastic resin having low wear and friction properties. As a primary pressing member subject to concentrated force it is 0.040 inch thick. One or both opposed retarder members of a bladed microcreper are of the plastic. Thermoplastics meeting wear and friction limits, e.g. ultra high density polyethylene, are employed. Primary extensions, some having openings, slots or holes serve as flexible retarders to engage treated material. By a load-spreading surface, the thermoplastic primary member is restrained without distortion. By this surface being linear it slideably inserts into a mounting. By this surface being parallel to the roll axis the primary member is free for cross-machine thermal expansion. A primary member shown is sheet form, mounted between sheet metal members, one with a restraint surface. Sheet materials of polyolefins, wood pulp, etc.Type: ApplicationFiled: January 8, 2007Publication date: February 14, 2008Inventors: J. Drew Horn, Peter R. Smith, Richard C. Walton
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Patent number: 7320744Abstract: A multiple-nip calender has a set of rolls (2) with roll nips (N) between the rolls. A moistening arrangement has a roll means (3) for moistening the fibre web comprising a damping unit (33) and rolls (32) guiding the fibre web (W). The roll means is located in a pocket (7) adjacent to the line (L) of the aligned set of rolls, the pocket being formed by a space defined by the fibre web (W), one idle roll (5) in the set of rolls and said roll means (3), the fibre web contacting said roll at two locations, in roll nips located on opposite sides of the roll mantle when viewed from the longitudinal axis of the roll, and circulating around the roll means (3). The fibre web (W) contacts said roll in the set of rolls preferably in the roll nip immediately preceding a reversing nip (N;N3).Type: GrantFiled: November 11, 2003Date of Patent: January 22, 2008Assignee: Metso Paper, Inc.Inventors: Hannu Pullinen, Jorma Haag
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Patent number: 7300552Abstract: The present invention is a method for maximizing water removal from an absorbent web in a press nip. The present invention uses a pressing unit having a blanket with a void volume and with a pressure profile that maximizes water removal in the press section or on the Yankee dryer of a paper machine. The pressure profile of the pressing unit according to the present invention has a very steep pressure drop at and/or following the exit of a pressure distribution curve in order to maximize water removal by minimizing rewet of the web. The improved pressure profile according to the present invention results in increased water removal and/or improved line speed. The void volume further increases water removal and/or improves line speed.Type: GrantFiled: March 3, 2003Date of Patent: November 27, 2007Assignee: Georgia-Pacific Consumer Products LPInventors: Steven L. Edwards, Robert J. Marinack, Jeffrey Charles McDowell, Gary L. Worry
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Patent number: 7291249Abstract: An apparatus for the manufacture of a structured fiber web including an imprinting fabric, a first pressure field device, a second pressure field device and a drying cylinder. The fiber web is formed and carried on the imprinting fabric with an initial dry content of less than 35%. The first pressure field device applies a first pressure field to the imprinting fabric and the fiber web, thereby pressing the fiber web onto the imprinting fabric, thereby pre-imprinting the fiber web. The second pressure field device applies a second pressure field to the imprinting fabric in the fiber web, thereby again pressing the fiber web onto the imprinting fabric, drying the fiber web and fixing a three-dimensional surface structure in the fiber web. The drying cylinder has the fiber web delivered thereto by the imprinting fabric.Type: GrantFiled: December 18, 2003Date of Patent: November 6, 2007Assignee: Voith Paper Patent GmbHInventors: Thomas Thoröe-Scherb, Harald Schmidt-Hebbel, Jeffrey Herman
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Patent number: 7285185Abstract: A wet paper web transfer belt comprises a base body, a wet paper web side layer, and a machine side layer. The wet paper web side layer is formed of a high molecular weight elastic section, and fibers and filler particles are exposed at its surface. The fibers and filler particles are exposed in the form of an island-sea structure comprising islands section where the fibers are exposed, and a sea section where the filler particles are exposed. The fibers and the filler particles, both exposed at the wet paper web side layer, hold water at different times in the papermaking process as the wet paper web moves out of the press part of the papermaking machine.Type: GrantFiled: October 15, 2004Date of Patent: October 23, 2007Assignee: IchikawaCo., Ltd.Inventors: Kenji Inoue, Hiroyuki Takamura
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Patent number: 7189309Abstract: Water draining device for a paper machine or the like, in particular for a felted press of such a paper machine, including a receiving tank extending at least essentially over the machine width. The receiving tank includes a first chamber that receives arriving water and is under ambient pressure, and a second chamber that is connected to the first chamber and is under vacuum, into which the water collecting in the first chamber is aspirated and from which the water is eventually drained. A water receiving device of improved efficiency is also provided by forming a water receiving device by at least one suction channel projecting into the wedge-shaped area between the upper press roll and the dewatering belt, and extending transverse to the pulp web, which suction channel is connected to a source of reduced pressure.Type: GrantFiled: September 24, 2003Date of Patent: March 13, 2007Assignee: Voith Paper Patent GmbHInventors: Karl Steiner, Robert Wolf, Hans Prinzing, Gerhard Kotitschke, Jürgen Banning
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Patent number: 7179349Abstract: A web (W) is passed from a preceding treatment stage to a finishing device in which the web (W) is finished in the finishing device and from which finishing device the web (W) is passed further to a subsequent treatment stage. The web (W) is brought to a roll (11; 14) of the finishing device as supported substantially before a nip area (N1; N2). The web (W) is passed from the circumference of a roIl (12; 15) of the finishing device as substantially supported afler the nip area (N1; N2). A device for passing a web in connection with a finishing device of a paper machine causes a web (W) to be brought by the device to the circumference of a roll (11; 14) of the finishing device substantially before a nip area (N1; N2) and/or the web (W) can be passed from the circumference of a roll (12; 15) of the finishing device substantially after the nip area (N1; N2).Type: GrantFiled: November 21, 2001Date of Patent: February 20, 2007Assignee: Metso Paper, Inc.Inventor: Pekka Koivukunnas
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Patent number: 7172680Abstract: For profiling a fiber web (W) a shoe roll (10) defines a roll nip (4) with an opposite counter-roll (3). The shoe roll (10) has a static roll frame (5), a shoe element (2) located at the roll nip (4) and an endless belt (6) rotating about the shoe element (2) and the static roll frame (5). A lubricating cycle (71) is provided between the endless belt (6) and the shoe element (2) in the roll nip. The surface of the web (W) is profiled in the nip by loading the loading element (8). Before or after the shoe element (2), the shoe roll (10) has a longitudinally extending profiling strip (1) which can be pressurized to be able to perform thickness profiling of the surface of the fiber web (W). The static roll frame (5) and the shoe element (2) the endless belt (6) rotate about the profiling strip.Type: GrantFiled: April 2, 2002Date of Patent: February 6, 2007Assignee: Metso Paper, Inc.Inventors: Risto Turunen, Stefan Kuni
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Patent number: 7169259Abstract: A dry end of a tissue machine is made shorter by close-coupling a reel-up to the drying section and supporting the web from the drying section to the reel-up by a foil or a belt such that web stability is maintained, thus allowing high-speed operation. The foil's downstream edge can form a nip with the paper roll and nip load can be controlled by controlling pivotal movement of the foil. The reel-up can include a calendering belt for calendering the web as it passes through a nip between the belt and a reel drum supported on the belt, and a rotatable reel spool on which a paper roll is wound in nipping engagement with the reel drum. Alternatively, the reel drum can be eliminated and the paper roll can be supported on the belt. A composite shaftless core for winding is also disclosed.Type: GrantFiled: October 10, 2003Date of Patent: January 30, 2007Assignee: Metso Paper Karlstad ABInventor: Anders Tommy Lindén
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Patent number: 7169260Abstract: A paper or paperboard web (W) is precalendered. A web that has undergone earlier dewatering stages is calendered to attain a suitable surface for the coating process. The web is calendered (C) one-sidedly in such a manner that the absorption level of the second side (W2) of the web entering the calendering, which is higher than the absorption level of the first side (W1), is reduced in the calendering nearly to the same level or at least to the same level with the first side (W1).Type: GrantFiled: June 20, 2001Date of Patent: January 30, 2007Assignee: Metso Paper, Inc.Inventors: Johan Grön, Kari Sipi
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Patent number: 7144481Abstract: Endless steel band for belt presses, especially double belt presses, with a thickness between 2 mm to 4 mm, preferably 2.5 mm to 3.5 mm, which is turned around on drums of the belt press, and whose surface has a maximum medium roughness up to RZ 50.5 ?m, in which a plurality of depressions are provided starting from the surface of the steel strip and extending into the steel strip, the depressions being substantially evenly distributed and reaching from the surface of the steel strip 200 ?m to 600 ?m deep into the steel band. Such steel band can be used for the production of plates, preferably wood-based plates, especially chipboards, with elevations.Type: GrantFiled: November 4, 2003Date of Patent: December 5, 2006Assignee: Berndorf Band GmbH & Co.Inventor: Johannes Günther Simmel
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Patent number: 7141142Abstract: Papermaking fabrics, particularly those fabrics useful for making tissue and towel products, can be modified to alter their structure, such as surface texture, and re-used to make a different product. The fabrics can be modified after removal from the paper machine or while on the paper machine, including while the machine is running, so that down time between making different products can be eliminated or greatly reduced.Type: GrantFiled: September 26, 2003Date of Patent: November 28, 2006Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Mark Alan Burazin, Andrew Peter Bakken, Irene Beatrice Strohbeen
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Patent number: 7134388Abstract: A calender for a sheet of paper comprising a metal roll which is rotated by a first driving unit. The calender further comprises a rotatable cylindrical jacket, a pressurizing shoe, and a plurality of support members. The cylindrical jacket is disposed opposite the metal roll to form a calender nip so that the sheet of paper is continuously passed through the calender nip. The pressurizing shoe is provided within the jacket at the position of the calender nip and presses the interior surface of the jacket radially outward to pressurize the calender nip. The support members are disposed inside the jacket so that they are equally balanced in the peripheral direction of the jacket.Type: GrantFiled: September 21, 2004Date of Patent: November 14, 2006Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Setsuo Suzuki, Takeshi Matsuo, Junichi Ibushi, Hatsuo Mori, Fujio Shinoki
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Patent number: 7112258Abstract: A dry end section for a paper-making machine for producing a high-bulk tissue is provided. Such a machine comprises a through-air dryer adapted to finally dry a paper web and a through-air drying fabric configured to transport the web through the through-air dryer. A separating device is included for facilitating separation of the web from the through-air drying fabric. A reel is also provided and is configured to receive the web thereon. The web is received directly on the separating device or on a fabric wrapped about the separating device. In some instances, the web may be compressed between the separating device and an adjacent roll or by a web-compressing device disposed along the fabric transporting the web. The web is then transported to the reel directly from the fabric or other support mechanism extending between the separating device and the reel, without free draw of the web. Associated methods are also provided.Type: GrantFiled: March 18, 2004Date of Patent: September 26, 2006Assignee: Metso Paper Karlstad Aktiebolag (AB)Inventors: Ingvar Berndt Erik Klerelid, Lars-Erik Roland Önnerlöv, Leif Sören Videgren
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Patent number: 7060161Abstract: There is provided a method for restraining deformation of a nip roll, in which polygonal deformation of nip rolls that are in contact with each other is restrained, so that vibration produced by the deformation is decreased. The diameter ratio between the first and second nip rolls 1 and 2 is set at a value different from 1, by which both of the numbers of polygon sides of the rolls 1 and 2 are prevented from becoming integers or values close to integers. Thereby, polygonal deformation of nip rolls that are in contact with each other, so that vibration produced by the deformation is decreased.Type: GrantFiled: March 11, 2004Date of Patent: June 13, 2006Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Hideki Hirooka, Kiyoshi Nakano, Hiroshi Miura, Atsuo Sueoka, Takahiro Ryu
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Patent number: 7056421Abstract: The specification discloses a waterbox for applying an aqueous mixture, such as a starch mixture, to a web in a calender stack. The waterbox includes a spillway disposed adjacent a calender stack having a bottom plate, substantially parallel front and rear walls, and substantially parallel first and second end walls. The waterbox also includes an elongate lip for which extends from adjacent the front wall of the reservoir to a position adjacent a roll of the calender stack to form a pond area. A weir is provided for controlling the amount of mixture in the pond. Additionally the waterbox includes an inlet or a plurality of inlets for introduction of mixture into the pond area located below the pond level.Type: GrantFiled: July 10, 2002Date of Patent: June 6, 2006Assignee: International Paper CompanyInventors: James L. Ferguson, III, James L. Allen, Jr.
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Patent number: 7018512Abstract: A paper processing roll for use in a calender of a paper-making machine which during operation can be exposed to increased temperatures is provided with a heat-treated surface which is produced by hot-grinding or hot-balancing or both.Type: GrantFiled: December 5, 2001Date of Patent: March 28, 2006Assignee: Walzen Irle GmbHInventors: Jaxa von Schweinichen, Klaus-Peter Schramm, Wolfgang Wiertz, Ludwig Hellenthal
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Patent number: 7014735Abstract: A method for manufacturing a belt and a belt for use in the production of bulk tissue and towel, and of nonwoven articles and fabrics, requires the application of a sacrificial material onto a base substrate in a predetermined pattern which is to be imparted onto products manufactured with the belt. The sacrificial material is deposited in droplets in a controlled manner so as to control the x, y, z dimension of the material deposited and preferably has having an average diameter of 10? (10 microns) or more. A polymeric resin material is then deposited on the base substrate in all areas except those on which the sacrificial material has previously been applied. The polymeric resin material is then set by means appropriate to its composition, and the sacrificial material removed. Optionally, the polymeric resin material may then be abraded to provide the belt with a uniform thickness, and a smooth, macroscopically monoplanar surface.Type: GrantFiled: December 31, 2002Date of Patent: March 21, 2006Assignee: Albany International Corp.Inventors: Charles E. Kramer, Joseph G. O'Connor, Maurice Paquin
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Patent number: 7008513Abstract: The present invention is a method for making a roll cover and a roll cover, wherein at least one material is applied to the surface of the roll or a base substrate. In a first embodiment, a single material is applied as a flowable phase. A uniform coating of the material is applied to the roll, and upon setting of the material, such as by cooling, curing, or other means, a smooth and permanent roll cover is formed upon the surface of the roll. In another embodiment, at least two materials are applied in flowable phases to the surface of the roll. The first material may be a sacrificial, removable first material, applied to the surface of the roll cover in a preselected pattern. After the sacrificial material has been applied, a second material, such as a functional resin, is applied to the surface of the roll cover with the sacrificial material removed after the second material has set. In another embodiment, the use of sacrificial material is avoided and the material is applied in a predetermined pattern.Type: GrantFiled: December 31, 2002Date of Patent: March 7, 2006Assignee: Albany International Corp.Inventors: Francis L. Davenport, Maurice Paquin
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Patent number: 7005043Abstract: A method of manufacturing and a papermaker's or industrial fabric, such as a dryer fabric for the dryer section of a paper machine, includes the application of a polymeric resin material onto preselected locations on the backside of a base substrate using a piezojet array which deposits the polymeric resin material in droplets having an average diameter of 10? (10 microns) or more to build up discrete, discontinuous deposits of the polymeric resin material having a height of about 0.5 mm at the preselected locations. The preselected locations may be the knuckles formed by the interweaving of the yarns making up the fabric. The purpose of the deposits is to separate the backside of the dryer fabric from a surface, such as that of a dryer cylinder or turning roll, to enable air trapped between the dryer fabric and the surface to escape in lengthwise and crosswise directions parallel to the surface, instead of being forced through the fabric, possibly causing “drop off”.Type: GrantFiled: December 31, 2002Date of Patent: February 28, 2006Assignee: Albany International Corp.Inventors: Mary M. Toney, Maurice Paquin
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Patent number: 7005044Abstract: In a method for manufacturing a belt and a belt for use in the production of bulk tissue and towel, and of nonwoven articles and fabrics, a polymeric resin material is applied onto the surface of a base substrate in a precise predetermined pattern which is to be imparted onto products manufactured with the belt. The polymeric resin material is deposited in droplets having an average diameter of 10? (10 microns) or more. The polymeric resin material is then set by means appropriate to its composition, and, optionally, may be abraded to provide the belt with a uniform thickness, and a smooth, macroscopically monoplanar surface.Type: GrantFiled: December 31, 2002Date of Patent: February 28, 2006Assignee: Albany International Corp.Inventors: Charles E. Kramer, Joseph G. O'Connor, John Skelton, Maurice Paquin
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Patent number: 7005045Abstract: A belt for a material web producing machine and a process of producing the belt. The belt includes a plurality of long-chain strength supports arranged to form interstices and a filler at least partially filling the interstices. The process includes forming a sheet from a plurality of long-chain strength supports with the sheet including a plurality of interstices disposed between the long-chain strength supports, and filling at least a portion of the interstices with a filler.Type: GrantFiled: January 13, 2000Date of Patent: February 28, 2006Assignee: Voith Sulzer Papiertechnik Patent GmbHInventors: Günter Halmschlager, Walter Holzer
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Patent number: 7001486Abstract: 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 is operable to draw a vacuum on the paper web via the vacuum channel opening. A fluid delivery system is operable to deliver cleaning fluid into the vacuum channel wherein the vacuum source is operable during the delivery of cleaning fluid into the vacuum channel. In another embodiment, the fluid delivery system is operable to deliver cleaning fluid into the vacuum channel in a fluid delivery direction that is at least partially different from the direction of flow of the vacuum within the vacuum channel.Type: GrantFiled: December 19, 2002Date of Patent: February 21, 2006Assignee: Kimberly-Clark Worldwide, Inc.Inventor: Sheldon John Hilger
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Patent number: 6998022Abstract: A soft crepe paper machine comprises a wet section with a press section having a press defined by first and second press elements forming a press nip through which a press felt runs with a paper web. A suction roll is arranged in the loop of the press felt before the press nip at a distance from the second press element, and the felt with the web thereon runs around the suction roll with a large wrap angle. A drying cylinder forms the second press element. The first press element is either a solid press roll, a suction press roll, or a variable crown press roll.Type: GrantFiled: November 18, 2002Date of Patent: February 14, 2006Assignee: Metso Paper Karlstad AktiebolagInventor: Magnus Hultcrantz
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Patent number: 6998018Abstract: A creped tissue paper is made by creping a tissue paper from a drying cylinder with a creping doctor, receiving the creped web on a carrying fabric, carrying the creped web on the carrying fabric through a compression nip that compresses the web to substantially reduce its thickness and improve softness of the web, and carrying the creped, compressed web on the carrying fabric or a subsequent fabric to a reel-up.Type: GrantFiled: July 28, 2004Date of Patent: February 14, 2006Assignee: Metso Paper Karlstad ABInventors: Ingvar Berndt Erik Klerelid, Johan Ulf Rågård
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Patent number: 6989080Abstract: A nonwoven papermaker's fabric, usable in the dryer section of a paper machine, has a spiral wound machine direction (MD) base layer of raw stock which is wound around a pair of parallel rolls or cylinders until the desired length and width is achieved. The spiral wound MD layer is overlaid with a cross-machine direction (CD) layer of similar or dissimilar raw stock and mated by any of a number of means. The spiral wound MD layer can also be mated to another MD layer spiraled in the opposite direction and in one embodiment further mated to a CD layer. The fabric is preferably produced so that its neutral line is oriented toward the paper side of the fabric so that the paper sheet will stretch less than when typical dryer fabrics are used to turn the paper sheet and fabric around the dryer cylinders.Type: GrantFiled: June 19, 2003Date of Patent: January 24, 2006Assignee: Albany International Corp.Inventor: Robert A. Hansen
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Patent number: 6926308Abstract: Toilet paper, paper towel and facial tissue products (10) are presented. Information may be placed, through printing or embossing, on the toilet paper, paper towels and facial tissues. The information (62) may comprise advertisements, coupons, prizes (such as stickers and crossword puzzles), games or other promotional materials. In addition, information (62) may be placed on a sheet separate from the toilet paper and/or paper towels and/or facial tissues. The information sheet may be then be placed in conjunction with the toilet paper, paper towel or facial tissue by rolling or by interleaving (16) the information sheet with the toilet paper, paper towel or facial tissue. In another aspect, different information may be place on two or more sheets to convey a story (39) or other information. The information (72) may, for example, be used to help potty train children, or to teach children numbers or the alphabet.Type: GrantFiled: October 16, 2001Date of Patent: August 9, 2005Inventors: Daniel Joel Penn, Michael Charles Penn, Amir Nathaniel Penn
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Patent number: 6905575Abstract: In a paper/board or finishing/converting machine, a calender (1) comprises a number of rolls (2, 3) formed into a roll stack, and a number of lift-out rolls (4), which are arranged in such a way that the web (W) being treated travels from one calender (1) nip (N) to another via a lift-out roll (4). Between the calender (1) roll (2, 3) and the lift-out roll (4), the web (W) being treated is supported by means of at least one closing member (5, 5?, 6) not extending through the nip (N), which closing member is formed by a belt, wire or metal wire (7), which is arranged to travel via two or more guide rolls (4, 8).Type: GrantFiled: June 20, 2001Date of Patent: June 14, 2005Assignee: Metso Paper, Inc.Inventors: Pekka Linnonmaa, Antti Heikkinen
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Patent number: 6890407Abstract: A method and an arrangement for manufacturing calendered paper or board particularly in the on-line manufacturing method. In the method, a base web is formed from a mixture of water and pulp supplied from the headbox and the web is dried by removing water over the press section and over the dryer section by heating. The formed web is calendered at least once to modify the surface on at least one of its sides. Before calendering the cross-direction thickness profile of the web is standardized and calendering is carried out by means of a long-nip calender, whereby good surface quality is obtained without losing the bulk or stiffness of the web.Type: GrantFiled: May 15, 2000Date of Patent: May 10, 2005Assignee: Metso Paper, Inc.Inventors: Pekka Koivukunnas, Matti Lares, Mika Leino
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Patent number: 6887349Abstract: An embossing system is provided for embossing a web having a first embossing roll having embossing elements and a second embossing roll having embossing elements, wherein at least a portion of the embossing elements of the first and second embossing rolls are substantially oriented in the cross-machine direction. The embossing roll may be crowned, may have alignment means, and may be provided with precision gearing.Type: GrantFiled: September 5, 2002Date of Patent: May 3, 2005Assignee: Fort James CorporationInventors: Paul J. Ruthven, Dale T. Gracyalny, Galyn A. Schulz, John R. DeMille, Otto Mogged, III, Alan J. Kraszewski, Robert J. Williams, Harlie C. Zahn, Robert R. Daus, Mark D. Hansen
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Patent number: 6881301Abstract: 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) placed one after the other before the fibrous web is wound on a reel-up/winder (9). With a view to making the net evaporation from and the final moisture content of the web (W) constant when the running situations in the calender (10) change, the web is passed in the calender from the outlet of at least one nip into an air-float chamber (20) of the turning airborne type.Type: GrantFiled: April 3, 2001Date of Patent: April 19, 2005Assignee: Metso Paper, Inc.Inventors: Antti Heikkinen, Pekka Linnonmaa, Reijo Pietikäinen
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Patent number: 6878237Abstract: Machine and process for operating machine having at least one roll and an opposing surface arranged to form at least one nip. The machine includes at least one roll and an opposing surface arranged to form at least one nip. A sound measuring device is arranged to conduct sound measurements in at least one of an area of the at least one roll and an area of the at least one nip to monitor vibrations in the at least one roll and/or in the at least one nip. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.Type: GrantFiled: March 26, 2003Date of Patent: April 12, 2005Assignee: Voith Paper Patent GmbHInventor: Eva Scheideler
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Patent number: 6875311Abstract: A method and an arrangement for manufacturing calendered paper or board particularly in the on-line manufacturing method. In the method, a base web is formed from a mixture of water and pulp supplied from the headbox and the web is dried by removing water over the press section and over the dryer section by heating. The formed web is calendered at least once to modify the surface on at least one of its sides. Before calendering the cross-direction thickness profile of the web is standardized and calendering is carried out by means of a long-nip calender, whereby good surface quality is obtained without losing the bulk or stiffness of the web.Type: GrantFiled: October 10, 2003Date of Patent: April 5, 2005Assignee: Metso Paper, Inc.Inventors: Pekka Koivukunnas, Matti Lares, Mika Leino
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Patent number: 6863776Abstract: Press section and process for dewatering a fibrous material web that includes a plurality of rolls arranged to form at least three nips and at least one endlessly circulating dewatering belt associated with each nip. Each at least one endlessly circulating dewatering belt is structured and arranged to guide the fibrous material web through its respective nip and to receive water squeezed out of the fibrous material web in the respective nip. The plurality of rolls include at least one press roll having a smooth surface arranged to contact a surface of the fibrous material web and an endlessly circulating, smooth transfer belt is structured and arranged to contact a surface of the fibrous material web opposite the surface contacting the smooth surface of the at least one press roll and to support the fibrous material web through at least one of the at least three nips.Type: GrantFiled: September 20, 2002Date of Patent: March 8, 2005Assignee: Voith Paper Patent GmbHInventors: Ulrich Begemann, Ingolf Cedra, Thomas Augscheller, Georg Kleiser
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Patent number: 6855227Abstract: A method of dewatering a fiber web in a paper machine, includes the steps of: dewatering the fiber web in a forming section to a solids content of greater than approximately 10%; displacement pressing the fiber web in an air press assembly to a solids content of greater than approximately 40%; and through air drying the fiber web in at least one air press assembly to a higher solids content.Type: GrantFiled: January 31, 2003Date of Patent: February 15, 2005Assignee: Voith Paper Patent GmbHInventor: David Beck
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Patent number: 6846385Abstract: A vibration-minimizing suspension mechanism for a press roll is provided. The press roll and an opposing roll each having a rotational axis and cooperate to form a press nip for imparting a linear load on a web passing therethrough. The linear load is oriented through the rotational axes of the press and opposing rolls. The suspension mechanism comprises a suspension arm having opposed ends and a medially-disposed pivot, wherein the rotational axis of the press roll is rotatably engaged with one of the opposed ends. The suspension arm is pivotably and adjustably mounted at the pivot to allow the pivot to be adjusted in substantially parallel relation to the linear load. The adjustable pivot thereby allowing a mounting line, defined by the pivot and the rotational axis of the press roll, to be maintained in substantially perpendicular orientation to the linear load to thereby minimize vibration in the press roll.Type: GrantFiled: February 20, 2004Date of Patent: January 25, 2005Assignee: Metso Paper Karlstad ABInventor: Tord Gustavsson
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Patent number: 6837157Abstract: A calender for a sheet of paper comprising a metal roll which is rotated by a first driving unit. The calender further comprises a rotatable cylindrical jacket, a pressurizing shoe, and a plurality of support members. The cylindrical jacket is disposed opposite the metal roll to form a calender nip so that the sheet of paper is continuously passed through the calender nip. The pressurizing shoe is provided within the jacket at the position of the calender nip and presses the interior surface of the jacket radially outward to pressurize the calender nip. The support members are disposed inside the jacket so that they are equally balanced in the peripheral direction of the jacket.Type: GrantFiled: November 12, 2002Date of Patent: January 4, 2005Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Setsuo Suzuki, Takeshi Matsuo, Junichi Ibushi, Hatsuo Mori, Fujio Shinoki
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Publication number: 20040244608Abstract: A method for making a fibre web, especially aboard web. The fibre web (W) is pre-calendered in a long-nip calender (11; 21), which replaces the Yankee cylinder. The invention also concerns a concept for making a fibre web, especially board. The concept includes a long-nip calender (11; 21) for pre-calendering the fibre web and to replace the Yankee cylinder.Type: ApplicationFiled: May 7, 2004Publication date: December 9, 2004Inventors: Matti Lares, Kari Hasanen
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Patent number: 6821391Abstract: A former for producing a tissue web and a process of making a tissue web using the former. The former includes a forming element, an inner dewatering belt, and an outer dewatering belt. The inner and outer belts converge to form a stock inlet nip. The inner and outer belts are guided over the forming element and thereafter separating from one another in the area of a separation point. At least one suction element is positioned adjacent the inner belt on a side which is opposite the outer belt. Alternatively, a conditioning device is positioned adjacent the outer belt. The process includes forming the tissue web in the area of the forming element, guiding the inner and outer belts around the forming element, and separating the inner and outer belts in the area of the separation point. Alternatively, the process includes conditioning the outer belt.Type: GrantFiled: January 26, 2001Date of Patent: November 23, 2004Assignee: Voith Paper Patent GmbHInventors: Thomas Thoröe Scherb, Harald Schmidt-Hebbel
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Patent number: 6811654Abstract: A method and apparatus for calendering paper or board in the manufacture of coated grades of paper or board. At least one of the surfaces of an uncoated base material web is calendered, at least one layer of coating mix being applied onto said surface, and at least the coated surface of the base web is calendered again. The uncoated surface of the base web is calendered by means of a shoe calender having a nip length of at least 50 mm, and the coated surface of the base web is calendered by means of a calender having a nip length of 50 mm at the most.Type: GrantFiled: January 3, 2001Date of Patent: November 2, 2004Assignee: Valmet CorporationInventors: Pauli Kytönen, Mikko Tani
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Patent number: 6797118Abstract: A method and an arrangement for surface treatment of a paper and/or board web (W) formed of a yankee cylinder (2) and a calendering unit (5) placed one after the other in the machine direction, by means of which the web (W) is first glazed and dried and after that immediately calendered.Type: GrantFiled: July 10, 2002Date of Patent: September 28, 2004Assignee: Metso Paper, Inc.Inventors: Pekka Koivukunnas, Matti Lares
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Patent number: 6797115Abstract: A creped tissue paper is made by creping a tissue paper from a drying cylinder with a creping doctor, receiving the creped web on a carrying fabric, carrying the creped web on the carrying fabric through a compression nip that compresses the web to substantially reduce its thickness and improve softness of the web, and carrying the creped, compressed web on the carrying fabric or a subsequent fabric to a reel-up.Type: GrantFiled: February 26, 2003Date of Patent: September 28, 2004Assignee: Metso Paper Karlstad ABInventors: Ingvar Berndt Erik Klerelid, Johan Ulf Rågård
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Patent number: 6790315Abstract: A drying section for drying a web in a papermaking machine has a pre-drying section and a final drying section, wherein the pre-drying section includes a hot press formed by a first press member and a rotatable counter roll in engagement with each other so as to form a nip therebetween through which the web passes. The hot press further includes a heating device disposed in heat-transfer relation to the counter roll and operable to heat a surface region of the counter roll which then passes through the nip so as to heat the web therein, and an imprinting fabric arranged in an endless loop, the imprinting fabric defining an imprinting surface for imprinting the web and being arranged to pass through the nip of the hot press with the web against the imprinting surface such that the web is imprinted. The imprinting fabric continues to support the imprinted web downstream of the hot press at least up to the final drying section.Type: GrantFiled: August 7, 2002Date of Patent: September 14, 2004Assignee: Metso Paper Karlstad ABInventor: Ingvar Klerelid
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Patent number: 6790316Abstract: 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 the shoe is controlled so as to be as desired in the direction of nip compression. The invention also relates to an arrangment for positioning a shoe of a shoe press/shoe calender in a paper machine, which arrangment comprises a shoe roll (10) or equivalent which includes a shoe (11) and hydraulic cylinders (12) connected thereto for moving the shoe (11). The arrangement comprises further at least two measuring devices (15) for measuring the position of the shoe (11) and means (12) for controlling the position of the shoe (11) based the results obtained by means of the measuring devices so as to be as desired in the direction of nip compression.Type: GrantFiled: March 5, 2002Date of Patent: September 14, 2004Assignee: Metso Paper, Inc.Inventors: Kari Hasanen, Timo Torvi, Helena Leppäskoski