With Felt Structure Or Felt Composition Patents (Class 162/358.2)
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Patent number: 7717141Abstract: A forming fabric for a papermaking machine that includes a machine-side layer and a paper-side layer. The machine-side layer includes bottom warp yarns and bottom weft yarns that weave with at least some of the bottom warp yarns. The paper-side layer includes top warp yarns and top weft yarns that weave with at least some of the top warp yarns to create a weave pattern in a repeating pattern area, and at least one of the top weft yarns includes a paper-side float in the repeating pattern area that passes over a number of consecutive top warp yarns. The forming fabric further includes a set of dual combination binder weft yarns disposed adjacent a top weft yarn. At least one dual combination binder weft yarn of the set weaves with some of the bottom warp yarns and some of the top warp yarns. Each dual combination binder weft yarn of the set includes at least one segment in the repeating pattern area that passes over at least one top warp yarn.Type: GrantFiled: February 6, 2009Date of Patent: May 18, 2010Assignee: Voith Patent GmbHInventor: Scott D. Quigley
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Publication number: 20100101745Abstract: A belt (shoe press belt) for a paper making machine, which has good ability of squeezing water from moist paper and which, during use, has reduced damage (cracks and wear) on the outer peripheral surface of the belt. The shoe press belt for making paper carries felt for receiving water squeezed from moist paper. A water discharge groove extended on the surface on the felt side is formed as an intermittent groove, and the width and depth of the water discharge groove are continuously varied in the direction of travel (MD direction) of the groove. The shape of the intermittent groove can be asymmetrical or symmetrical at the left and right with respect to the width, or can be formed to have a narrow width at the center of the groove, or can be formed so that the groove is deep at the center. Because the water discharge groove is intermittent, water discharge ability, the quality of paper, and the smoothness of the surface of moist paper are enhanced at the same time.Type: ApplicationFiled: March 12, 2008Publication date: April 29, 2010Applicant: ICHIKAWA CO., LTDInventor: Satoshi Takano
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Publication number: 20100101746Abstract: Provided is a paper-making machine belt (or a paper-making shoe-press belt), which is excellent in a wet-web water-squeezing property, which is stable in a paper quality (e.g., wet-web smoothness or marking property), and which has little damage (e.g., cracking or wear) of the outer circumference of the belt being used. The paper-making shoe-press belt carries a felt for accepting the squeezed water from the wet-web and has draining grooves extended in the felt-side surface. The paper-making shoe-press belt is characterized in that the draining grooves extended in the felt-side surface have at least two kinds of different groove shapes in the transverse direction (or the CMD direction) of the paper-making machine. The groove shape enables the grooves of two continuous and discontinuous kinds to share the functions thereby to satisfy the improvements in the drainage and in the paper quality and the wet-web surface smoothness at the same time.Type: ApplicationFiled: March 14, 2008Publication date: April 29, 2010Applicant: ICHIKAWA CO., LDT.Inventors: Satoshi Takano, Hiroyuki Takamura
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Patent number: 7703481Abstract: A paper machine fabric having at least two separate layers made of at least four warp yarn systems woven in different manners and a weft yarn system woven in at least two different manners. The layers are bound together by a binder warp system, whereby the binder warp is arranged to complement the surface of the paper side and to be interwoven with the layer of the machine side by being interwoven under at least one weft yarn of the machine side. The warp yarns of one warp yarn system, i.e. wandering warps, are arranged to complement a warp path formed by the binder warps so that it is continuous at those points on the machine side where the binder warps constitute a part of the paper side structure.Type: GrantFiled: October 5, 2006Date of Patent: April 27, 2010Assignee: Tamfelt PMC OYInventors: Seppo Taipale, Mari Seppanen, Terttu Turpeinen, Pekka Kortelainen
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Patent number: 7691237Abstract: This invention relates to a belt for transferring an in-production fibrous web, in particular a paper web or paperboard web, in a machine area of a machine producing the fibrous web, in particular a paper machine or paperboard machine, including at least one textile substrate and a coating, which is applied to the substrate and touches the in-production fibrous web, for obtaining a partial or complete impermeability of the belt. The inventive belt has at least one continuously differencing characteristic in at least one region across its overall width. Also, this invention relates to a machine, in particular a paper machine or paperboard machine, for producing a fibrous web, in particular a paper web or paperboard web, as well as to a use of a belt for transferring an in-production fibrous web, in particular a paper web or paperboard web, in one machine area or between two machine areas of a machine producing the fibrous web, in particular a paper machine or paperboard machine.Type: GrantFiled: September 27, 2006Date of Patent: April 6, 2010Assignee: Voith Paper GmbHInventor: Arved Westerkamp
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Publication number: 20100078142Abstract: A fabric for use in a paper machine includes a pair of ends connected together in a join area to make an endless loop of fabric, the join area having a plurality of perforations extending therethrough.Type: ApplicationFiled: December 3, 2009Publication date: April 1, 2010Inventors: Robert Crook, Bryan L. Wilson
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Patent number: 7670461Abstract: The invention relates to a papermachine fabric for dewatering and drying a fibrous web in a machine producing a fibrous web, including a plurality of layers with at least one carrier structure and a fiber batt having at least one fiber non-woven. The papermachine fabric according to the invention includes a fiber batt provided with a coating on at least one side.Type: GrantFiled: June 28, 2006Date of Patent: March 2, 2010Assignee: Voith Patent GmbHInventor: Arved H. Westerkamp
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Publication number: 20100043998Abstract: A press felt 10 comprises a base body 30 and a batt layer having a wet paper side layer 20. The wet paper web side layer 20 has a base body side batt layer 22, upright fiber bundles 50 are formed in the basebody side batt layer 22. After needle punching a core-in-sheath fiber 41, the upright fiber bundles are formed by melting the sheath member of the core-in-sheath fibers 41 into a pillar form melted by heat treatment. As a result, the base body side batt layer 22 is made dense and blocks water within the press side batt layer 23 from moving to the wet paper web side, thereby preventing rewetting; moreover, the invention successfully enhances resistance to abrasion and compression fatigue of the felt 10 by the upright fiber bundles 50 fusion-bonded into a pillar form.Type: ApplicationFiled: December 27, 2007Publication date: February 25, 2010Applicant: ICHIKAWA CO., LTD.Inventor: Takashi Ohuchi
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Publication number: 20100032120Abstract: The invention is an endless belt for a machine for the production of a fibrous material web, the belt being formed by a flat woven structure and a connecting region. The flat woven structure has longitudinal threads extending in the MD direction and transverse threads extending in the CMD direction. Every longitudinal thread, has a first thread end section, which protrudes beyond the first end of the woven structure, and a second thread end section, which protrudes beyond the second end of the woven structure.Type: ApplicationFiled: August 20, 2009Publication date: February 11, 2010Inventors: Martin Ringer, Lippi A. Fernandes, Andrew Cartwright
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Publication number: 20100032119Abstract: A fabric for papermaking includes a first layer side, a second layer side and at least one binder warp yarn pair. The first side layer has a plurality of first weft yarns and a plurality of first warp yarns. The second side layer has a plurality of second weft yarns and a plurality of second warp yarns. The at least one binder warp yarn pair includes a first binder warp yarn pair having a first binder warp yarn and a second binder warp yarn, the first side layer and the second side layer being bound by the first binder warp yarn pair. The first binder warp yarn and the second binder warp yarn exchange the layer to which they are woven at exchange points. A knuckle is formed with the first binder warp yarn and an adjacent first warp yarn, a subsequent adjacent knuckle only being formed with the first binder warp yarn and an opposite adjacent first warp yarn.Type: ApplicationFiled: August 14, 2009Publication date: February 11, 2010Inventor: Scott Quigley
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Patent number: 7658821Abstract: A press fabric having a plurality of surface pressing plates on a sheet side of the fabric imparts an impression onto a sheet of paper web during a pressing process. The surface pressing plates are preferably resin pressing plates, and form at least one of a random pattern of dots, a predetermined pattern of dots, a grid pattern of dots, a regular grid pattern of lines, an irregular grid pattern of lines a plurality of squiggly lines, a plurality of wavy lines, a plurality of straight lines, words and pictures.Type: GrantFiled: August 23, 2006Date of Patent: February 9, 2010Assignee: Voith Patent GmbHInventors: Robert Crook, John Jeffery, Lippi A. Fernandes, Anthony Morton, Justin Payne, David Ponton, Luiz Carlos Silva
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Patent number: 7654289Abstract: A double layer forming fabric for a papermaking machine is warp-tied, all the warp yarns comprising binder pairs which forming a single combined path in the paper side surface. The pair members exchange positions at an exchange point between successive path segments and are laterally displaced in relation to each other at and between each exchange point. For each successive pair, an order of insertion of the first and second members in relation to each other into the weave is inverted in relation to the order of insertion for members of the immediately preceding pair, such that each first member is adjacent to the first member of the adjacent pair at the closest exchange point, and each second member is adjacent to the second member of the adjacent pair at the closest exchange point. The fabric has improved drainage uniformity leading to improved paper formation and reduced sheet marking.Type: GrantFiled: July 30, 2008Date of Patent: February 2, 2010Assignee: AstenJohnson, Inc.Inventor: Rex Barrett
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Publication number: 20100018663Abstract: A felt (10) for papermaking according to the present invention has a batt fiber layer comprising batt fibers contained in and integrally combined with a high-polymer elastic material (50). The batt fiber layer contained in the high-polymer elastic material (50) includes hydrophilic 1-methyl-2-pyrrolidone. The felt (10) for papermaking exhibits a hydrophilic capability as a felt structure from an initial phase of use. The felt has a sustained ability to be compressed and recovered for a long period of time and maintains water squeezing function, a wet paper web smoothing function, and a wet paper web feeding function until the end of the period in which the felt is used.Type: ApplicationFiled: July 5, 2007Publication date: January 28, 2010Inventor: Takashi Oouchi
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Patent number: 7644738Abstract: A through-air-drying (TAD) fabric for producing tissue paper and related products on a papermaking machine comprising a plurality of warp yarns interwoven with a plurality of weft yarns to produce warp and weft knuckles on a paper-side surface of the fabric, preferably to form an L-shaped knuckle pattern.Type: GrantFiled: March 28, 2007Date of Patent: January 12, 2010Assignee: Albany International Corp.Inventors: Lynn F. Kroll, John J. LaFond
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Patent number: 7641768Abstract: A method of joining two ends of a fabric for use in a paper machine, carried out using a joining assembly, includes the steps of: placing a first end of the fabric on a first portion of a pin plate, the pins in the first portion of the pin plate extending into the first end; placing a second end of the fabric on a second portion of the pin plate such that the first end and the second end are in close proximity to each other in a join area, the pins in the second portion of the pin plate extending into the second end; and joining the first end and the second end in the join area. The method results in a perforated (and therefore permeable) join area.Type: GrantFiled: August 25, 2006Date of Patent: January 5, 2010Assignee: Voith Patent GmbHInventors: Sanjay Patel, Robert Crook, Bryan Wilson
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Patent number: 7638018Abstract: A covering for a machine for the production of a fibrous web has, at least in some sections, a two-dimensional structure which is formed by a multiplicity of polymer-based regions which differ from each other at least in part by virtue of a different fraction of filler material and/or by virtue of a different type of filler material.Type: GrantFiled: September 26, 2006Date of Patent: December 29, 2009Assignee: Voith Patent GmbHInventors: Arved H. Westerkamp, John Jeffery, Antony Morton
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Patent number: 7637291Abstract: A paper machine mesh, in particular a forming mesh, includes an upper and a lower fabric layer and binder threads to join the two fabric layers, the lower fabric layer having a weaving pattern which is repeated in lower repeats. Within the lower repeat, each binder thread of each pair with lower longitudinal threads forms at least one tie segment and each tie segment is formed in that the respective binder thread of the pair continually crosses two or more directly consecutive lower longitudinal threads on the outer side of the lower fabric layer, and the tie segments of each binder thread pair are arranged relative to the lower transverse threads flanking said segments.Type: GrantFiled: April 28, 2008Date of Patent: December 29, 2009Assignee: Voith Patent GmbHInventor: Johann Boeck
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Patent number: 7631669Abstract: A papermaking fabric having a top layer and a bottom layer of interwoven machine direction (MD) yarns and cross-machine direction (CD) yarns bound together with warp binder yarns. At least some of the CD yarns are made of a material which generates a strong contractive force when returned to room temperature after heat-setting (annealing under MD tension). These CD yarns are positioned such that the strong contractive force offsets tension forces generated when the fabric is placed under load and which typically result in an edge curl. An exemplary material for these CD yarns is polybutylene terephthalate (PBT).Type: GrantFiled: May 24, 2006Date of Patent: December 15, 2009Assignee: Albany International Corp.Inventors: David S. Rougvie, Hayward Bradford Arthur, Louis Jay Jandris, Manish Jain
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Patent number: 7624767Abstract: A dryer fabric and a seam area of a dryer fabric. The basic structure of the dryer fabric having at least two superposed machine direction yarn systems. Some yarns of a paper side machine direction yarn system form seam loops at connecting ends and some of the paper side machine direction yarns form an edge of the seam area. All the machine direction yarns of the paper side system make a backward turn at the connecting end and they are fastened off on the backside. The paper side machine direction yarns are cut at a cutting point. Cutting points form a fasten-off row. Yarns that form seam loops are fastened off in a first fasten-off row and yarns that form an edge of the seam area are fastened off in one or more second fasten-off row. One fasten-off row is situated at the beginning line of the seam area.Type: GrantFiled: March 10, 2008Date of Patent: December 1, 2009Assignee: Tamfelt PMC OyInventors: Rauno Enqvist, Aira Liitola
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Patent number: 7624766Abstract: A papermaker's fabric includes a plurality of repeat units of interwoven yarns, each repeat unit comprising: a set of top MD yarns; a set of top CMD yarns interwoven with the top MD yarns; a set of bottom MD yarns; and a set of bottom CMD yarns interwoven with the bottom MD yarns. In interweaving with the top CMD yarns, some of the top MD yarns include a segment in which the top MD yarn passes below a subset of three consecutive top CMD yarns. Each of the bottom MD yarns forms a knuckle over one of the three top CMD yarns of the subset that a top MD yarn located immediately thereabove passes below. The set of bottom CMD yarns includes at least twice as many yarns as does the set of bottom MD yarns.Type: GrantFiled: March 16, 2007Date of Patent: December 1, 2009Assignee: Weavexx CorporationInventor: Kevin J. Ward
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Patent number: 7617846Abstract: A papermakers's fabric which includes a system of CD yarns including a plurality of CD yarns and a system of MD yarns. The system of MD yarns further includes a first subsystem of MD yarns and a second subsystem of MD yarns, which are in a vertically stacked relationship with one another. The first subsystem of MD yarns includes sheds having at least two MD yarns with substantially similar aspect ratios. The aspect ratio of the MD yarns in the second subsystem of MD yarns is greater than that of the MD yarns in the first subsystem of MD yarns. All of the yarns the first and second subsystems of MD yarns are interwoven with the CD yarns of the CD yarn system in a repeat weave pattern. Seaming loops are formed using only MD yarns from the first subsystem of MD yarns.Type: GrantFiled: July 25, 2006Date of Patent: November 17, 2009Assignee: Albany International Corp.Inventor: John Ding
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Patent number: 7604026Abstract: A through-air-drying (TAD) fabric for producing tissue paper and related products on a papermaking machine comprising a plurality of warp yarns interwoven with a plurality of weft yarns to produce pockets on a paper-side surface of the fabric. The weft yarns have a substantially triangular cross-section and are oriented with their flat surface facing a machine side surface of the fabric. The points interlacing with the warp as they pass over and under the weft yarns produce an increased pocket depth and volume in the TAD fabric.Type: GrantFiled: December 15, 2006Date of Patent: October 20, 2009Assignee: Albany International Corp.Inventor: Jeffrey B. Herman
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Patent number: 7604025Abstract: Forming fabric that includes a top layer having a plurality of first top warp yarns woven with a plurality of top weft yarns. A bottom layer includes a plurality of first bottom warp yarns woven with a plurality of bottom weft yarns. A plurality of second top warp yarns is woven with some of the plurality of top weft yarns and with some of the plurality of bottom weft yarns. A plurality of second bottom warp yarns is woven with some of the plurality of top weft yarns and with some of the plurality of bottom weft yarns. At least one of the plurality of second top warp yarns weaves to the bottom layer with a short plain weave. At least one of the plurality of second bottom warp yarns weaves to the bottom layer with a short plain weave.Type: GrantFiled: December 22, 2006Date of Patent: October 20, 2009Assignee: Voith Patent GmbHInventor: Scott Quigley
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Publication number: 20090242159Abstract: The invention relates to a felt belt, especially a press felt for a paper—, cardboard or tissue machine, with a basic structure that is formed by (a) a longitudinal reinforcement module extending on the width and length of the felt belt, including (1) a laid longitudinal thread structure on the width and the length of the felt belt which is formed by at least one longitudinal thread extending essentially in longitudinal direction of the belt, and (2) one carrying layer which is bonded with the laid longitudinal thread structure and extends on the width and the length of the felt belt, as well as (b) one cross reinforcement module which has the same length and width as the felt belt which is located on and bonded with the longitudinal reinforcement module which is formed by a plurality of cross reinforcement module segments, each of which extend on the width of the felt belt, and only on part of the length of the felt belt and which are arranged in tandem in longitudinal direction of the felt belt and which toType: ApplicationFiled: March 31, 2009Publication date: October 1, 2009Inventors: Uwe Kockritz, Matthias Schmitt
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Patent number: 7591928Abstract: A spiral-link fabric comprised of connected sets of “chain mail” intertwined spiral coils. Alternating sets of two right-turn spiral coils and two left-turn spiral coils are repeatedly connected to form the body of the fabric. Within each set, the spiral coil loops are intertwined in a pattern which does not require fastening to connect the coils. The alternating sets are connected by interdigitating respective spiral coil loops and inserting a series of parallel pintles extending through the channels formed by the interdigitated loops.Type: GrantFiled: August 31, 2006Date of Patent: September 22, 2009Assignee: Albany International Corp.Inventors: Alan L. Billings, Curtis L. Gardner
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Patent number: 7584768Abstract: A woven belt for a machine for producing web material, in particular forming mesh, including at least two woven layers with warp threads extending in a belt longitudinal direction and weft threads extending in a belt transverse direction, wherein a first of the woven layers provides a web material contact side and a second of the woven layers provides a machine contact side and the woven layers are joined together by tie warp threads, wherein the first woven layer is woven with at least 26 different warp runs, the structure-forming warp threads woven into the first woven layer and the weft threads of the first woven layer having a maximum floating length of 3 in relation to each other, wherein, when the tie warp threads for providing structure-forming tie thread pairs are arranged in pairs relative to each other so that where a tie warp thread of a respective structure-forming tie warp thread pair is integrated into the first woven layer then the other tie warp thread of this structure-forming tie warp threadType: GrantFiled: December 18, 2007Date of Patent: September 8, 2009Assignee: Voith Patent GmbHInventors: Arved H. Westerkamp, Petra Hack-Ueberall
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Publication number: 20090211722Abstract: Belt and method of making a belt for a paper making machine. The belt includes a flat woven material having a top side surface and a bottom side surface and two terminal ends separated in a machine direction. Folds formed in the flat woven material are separated in the machine direction, so that the two terminal ends are located under the bottom side surface. Seam loops are located at the folds, and the two terminal ends one of are arranged adjacent each other and overlap each other in a region offset from a center between the folds. 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: ApplicationFiled: February 25, 2008Publication date: August 27, 2009Applicant: VOITH PATENT GmbHInventors: Robert CROOK, Clifton Wilder
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Patent number: 7578317Abstract: In combination with a high-speed spun-bond apparatus, rather than using a circulating sieve belt for collecting the stretched filaments and forming the web, a fabric having a 4-shed double layer with support shute weave design is used. This fabric is commonly referred to as a 4B weave and 4B weave with stuffer in center. In general, the fabric has a permeability ranging from 400 to 800 cfm with a woven or pin seam where the seam permeability and caliper varies only slightly with respect to the rest of the fabric.Type: GrantFiled: October 25, 2002Date of Patent: August 25, 2009Assignee: Albany International Corp.Inventors: Mark J. Levine, David Graham, Bill Houfek, Thomas L. Israel
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Patent number: 7575026Abstract: A paper machine mesh, in particular a forming mesh including: an upper fabric layer including upper transverse threads, the outer side of which forms a paper side of the paper machine mesh; a lower fabric layer including lower transverse threads, the outer side of which forms a machine side of the paper machine mesh; and tie threads, arranged in pairs and extending transverse to the transverse threads, which connect the upper and the lower fabric layer to each other in that the tie threads of each pair are woven with upper transverse threads to form upper tie sections and with lower transverse threads to form lower tie sections, wherein each upper tie section is formed by weaving one tie thread of the pair with one or more consecutive upper transverse threads and an upper tie section of the other tie thread of the pair is arranged between two consecutive upper tie sections of the tie thread, wherein in the case of each upper tie section the tie thread crosses at least one upper transverse thread when a tie thType: GrantFiled: November 15, 2006Date of Patent: August 18, 2009Assignee: Voith Patent GmbHInventor: Johann Boeck
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Patent number: 7571746Abstract: A paper making composite forming fabric including paper side weft and warp yarns and wear side warp yarns and bindery yarns. The paper side wefts and the binder yarns being interwoven with the paper side warp yarns. The binder yarns being interwoven with the wear side warps. A total number of paper side and wear side warp yarns per weave repeat is greater than 24. An internal binder float length is between 2 and 4. The fabric has an interchange points percentage value of less than 20 and a binder interchange points as a percentage of total machine direction yarns value of less than 10.Type: GrantFiled: May 18, 2004Date of Patent: August 11, 2009Assignee: Voith Patent GmbHInventors: Stewart Lister Hay, Arved Westerkamp
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Publication number: 20090165980Abstract: System for drying a tissue or hygiene web. The system includes a permeable structured fabric carrying the web over a drying apparatus. A permeable dewatering fabric contacts the web and is guided over the drying apparatus. A mechanism is used to apply pressure to the permeable structured fabric, the web, and the permeable dewatering fabric at the drying apparatus. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.Type: ApplicationFiled: March 10, 2009Publication date: July 2, 2009Applicant: VOITH PATENT GmbHInventors: Thomas Thoroe Scherb, Jeffrey Herman, Luiz Carlos Silva, Hubert Walkenhaus
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Publication number: 20090159148Abstract: A drying wire provided with an independent top fabric and bottom fabric. The bottom fabric is woven from longitudinal and cross direction monofilament yarns. The top fabric is woven from longitudinal yarns and shapeable cross direction yarns. The shapeable yarns make the structure of the top fabric denser and increase the contact surface area and the number of contact points. On the other hand, the bottom fabric is also smooth, wherefore it has good aerodynamic properties.Type: ApplicationFiled: April 24, 2007Publication date: June 25, 2009Applicant: TAMFELT PMC OYInventors: Rauno Enqvist, Marja Ojanen
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Patent number: 7550061Abstract: A dewatering fabric for an ATMOS system or a TAD machine that includes a caliper of between approximately 0.1 mm and approximately 15 mm, a permeability value of between approximately 1 cfm and approximately 500 cfm, an overall density of between approximately 0.2 g/cm3 and approximately 1.10 g/cm3, and a weight of between approximately 100 g/m2 and approximately 3000 g/m2. A belt press for a paper machine can utilize the dewatering fabric. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.Type: GrantFiled: April 28, 2006Date of Patent: June 23, 2009Assignee: Voith Paper Patent GmbHInventors: Hubert Walkenhaus, Robert L. Crook, Calvin Hayden
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Publication number: 20090133774Abstract: A seam felt 10c for papermaking comprises wet paper web side batt layer 30c and seam region 12. Fragments of a sheet-shaped nonwoven fabric 40a, which is disposed at a region of the wet paper web side batt layer 30c adjacent to the seam region 12, and which is crushed by means of needle punching, are dispersed within the widthwise range of the batt layer. At least a part of the fibers of the batt layer penetrates holes of the fragments of nonwoven fabric 40a, and the fragments of nonwoven fabric 40a are melted by heat and adhere to fibers of the batt layer.Type: ApplicationFiled: July 24, 2006Publication date: May 28, 2009Applicant: Ichikawa Co., Ltd.Inventor: Yasuyuki Ogiwara
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Publication number: 20090120603Abstract: A papermaking seamed felt 10 of the present invention comprises a base layer 30 having a seam part, a wet paper web side batt fiber layer 20 formed on the wet paper web side surface of said base layer, and a press side batt fiber layer 21 formed on the press side surface thereof, wherein said wet paper web side batt fiber layer 20 having a core-in-sheath fiber 41 comprising a core member made of high-molecular-weight nylon with an absolute viscosity of 80 mPa·s or more and a sheath member made of nylon with a lower melting point than the core member. A net-shaped fiber layer is formed with melted sheath members of the core-in-sheath fiber 41, which makes the wet paper web side batt fiber layer 20 dense. As a result, the wet paper web side batt fiber layer 20 works as a barrier to block water within the press side layer from moving to the wet paper web side, thereby preventing rewetting.Type: ApplicationFiled: April 11, 2007Publication date: May 14, 2009Applicant: Ichikawa Co., LtdInventors: Kazumasa Fujita, Yoshikazu Shiba
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Patent number: 7527707Abstract: A method of manufacturing and a papermaker's or industrial fabric, which includes the application of a polymeric resin material onto preselected discrete locations on a base substrate in a controlled manner in droplets having an average diameter of 10? (10 microns) to point bond yarns, bond spiral wound strips together or to bond layers of a fabric together.Type: GrantFiled: October 5, 2007Date of Patent: May 5, 2009Assignee: Albany International Corp.Inventors: Francis L. Davenport, Charles E. Kramer, Joseph G. O'Connor, Maurice Paquin
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Patent number: 7517434Abstract: A paper transporting felt includes a base layer, a first batt layer formed on a wet paper side surface of the base layer, a second batt layer formed on a press side surface of the base layer, a polymer elastic material impregnated in the base layer, the first batt layer and the second batt layer, and a wet paper contacting layer which is formed on a wet paper side surface of the first batt layer so as to come into direct contact with a wet paper, and includes a flexible resin material. The compressibility of the wet paper contacting layer is larger than that of a layer formed of the base layer, the first batt layer and the second batt layer.Type: GrantFiled: February 6, 2006Date of Patent: April 14, 2009Assignee: Ichikawa Co., Ltd.Inventors: Takashi Ouchi, Kenji Inoue
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Patent number: 7513276Abstract: A method for the production of a paper-machine screen with a paper-side ply of weft threads and a run-side ply of weft threads and with at least two warp thread systems interwoven in each case with the paper-side weft threads and/or the run-side weft threads, each warp thread system being assigned a group of heald frames, by means of which the warp threads of the warp thread systems are to be moved for shedding, including the generation of a draft diagram with a draft repeat for the warp thread systems, in which draft repeat a subrepeat recurring in the draft repeat is provided for at least one of the warp thread systems.Type: GrantFiled: July 20, 2006Date of Patent: April 7, 2009Assignee: Voith Patent GmbHInventor: Arved H. Westerkamp
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Patent number: 7514030Abstract: A smoothed and durable industrial process fabric and method for producing such a fabric. The fabric may be used as a papermaker's fabric, other industrial process fabric and/or engineered fabric. In any case, the fabric is processed using a device comprising at least two smooth rolls which form a pressure nip, such as a calender, such that at least some of the fabric components are permanently deformed. Preferably, at least one of the rolls is heated to a pre-selected temperature.Type: GrantFiled: December 30, 2002Date of Patent: April 7, 2009Assignee: Albany International Corp.Inventors: Anders Nilsson, Goran Nilsson, Ademar Lippi Fernande, David Rougvie, Lynn Kroll, Jeffrey Scott Denton
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Patent number: 7506670Abstract: A paper machine fabric has a paper side warp layer and a machine side warp layer. The fabric comprises at least one set of paper side wefts interlaced with the paper side warps and at least one set of machine side wefts interlocked with the machine side warps. The fabric further comprises at least one pair of interchanging weft binders, the members of each weft binder pair together forming one continuous weft path on the paper side, each of said members of all of said weft binder pairs interweaving with at least one paper side warp and at least one machine side warp. At least one weft binder yarn of at least one binder pair interlocks in an unlocked position with at least one warp yarn of the machine side of the fabric.Type: GrantFiled: May 12, 2004Date of Patent: March 24, 2009Assignee: Voith Paper Patent GmbHInventor: Stewart Lister Hay
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Patent number: 7503351Abstract: This invention relates to a paper machine covering such as a mesh, in particular forming mesh, having an upper fabric layer which is repeated in upper repeats and whose outer side forms the paper side of the mesh, having a lower fabric layer whose outer side forms the machine side of the mesh, and having tie threads arranged in groups and extending in the longitudinal thread direction, which connect the upper fabric layer and the lower fabric layer to each other, wherein the upper fabric layer is formed at least by the tie threads and, woven therewith, upper transverse threads extending transverse to the tie threads, in that the tie threads of each group alternate in sections when weaving with the upper transverse threads in the longitudinal thread direction, thus jointly creating an upper longitudinal thread run which is repeated over the length of the upper repeat in the longitudinal thread direction, wherein the lower fabric layer is formed at least by the tie threads and, woven therewith, lower transverseType: GrantFiled: December 15, 2006Date of Patent: March 17, 2009Assignee: Voith Patent GmbHInventor: Petra Hack-Ueberall
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Patent number: 7503350Abstract: A forming fabric is formed by repeat units, being determined by a paper side weave and a wear side weave, the paper side weave having first yarns being interwoven with second yarns extending in cross direction relative to the first yarns. The first yarns passing over one or more consecutive second yarns define over-floats and first yarns passing under one or more consecutive second yarns define under-floats. Each weave repeat unit has at least two like floats having different lengths and forming part of the paper side weave, wherein floats are like floats if all of the floats are either over-floats or under-floats. A “float” as used herein is defined as being either an over-float or an under-float, an over-float being defined by a yarn weaving over one or more consecutive yarns extending in cross direction relative thereto, an under-float being defined by a yarn weaving under one or more consecutive yarns extending in cross direction relative thereto.Type: GrantFiled: July 27, 2006Date of Patent: March 17, 2009Assignee: Voith Patent GmbHInventor: Scott Quigley
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Publication number: 20090056900Abstract: The invention discloses herein the use of short wavelength infrared energy to selectively control the locations where thermal fusing or bonding takes place or does not take place in an industrial fabric. Also, the method involves forming a mushroom cap on the tail of a fiber/yarn or monofilament and also creating a surface pattern formation.Type: ApplicationFiled: September 5, 2007Publication date: March 5, 2009Inventors: Joseph G. O'Connor, Maurice R. Paquin, Maryann Kenney, Dana Eagles, Jeffrey Scott Denton, Lynn F. Kroll, Jennifer L. Bowden, Amit Ganatra, John Michael Dempsey
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Publication number: 20090056901Abstract: Apparatus includes a multi-layer dewatering fabric and a dynamic condensation drying apparatus having a hot surface. The multi-layer dewatering fabric is arranged to sandwich a paper web onto the hot surface.Type: ApplicationFiled: August 25, 2008Publication date: March 5, 2009Applicant: VOITH FABRICS PATENT GMBHInventor: Antony Morton
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Patent number: 7493923Abstract: A double layer papermakers' fabric that is particularly suitable for forming or through-air drying (TAD) of high bulk tissue and towel product is provided. The fabric includes a single warp yarn system interwoven with three weft yarn systems such that: a first of the weft yarn systems is located on the paper side (PS) surface of the fabric; a second of the weft yarn systems is located on the machine side (MS) surface of the fabric; and the third weft yarn system is located intermediate between the first and second weft yarn systems. The yarns of the first and second weft yarn systems are interwoven with the warp yarn system such that they are vertically stacked with respect to one another in the fabric.Type: GrantFiled: March 12, 2007Date of Patent: February 24, 2009Assignee: AstenJohnson, Inc.Inventors: Rex Barrett, Rae Patel
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Patent number: 7493922Abstract: This invention relates to a paper machine mesh, in particular a forming mesh, including an upper fabric layer, whose outer side forms a paper side, and a lower fabric layer, whose outer side forms a machine side of the paper machine mesh, and tie threads extending in the longitudinal thread direction, which connect the upper fabric layer and the lower fabric layer to each other, wherein the upper fabric layer is formed at least by the tie threads and, woven therewith, upper transverse threads extending transverse to the tie threads, wherein the lower fabric layer is formed at least by the tie threads and, woven therewith, lower transverse threads extending transverse to the tie threads, wherein each lower transverse thread is held respectively by several tie threads in that each of these tie threads continually crosses the respective lower transverse thread on the outer side of the lower fabric layer, and wherein at least some of the tie threads holding a respective lower transverse thread are separated fromType: GrantFiled: December 15, 2006Date of Patent: February 24, 2009Assignee: Voith Patent GmbHInventor: Petra Hack-Ueberall
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Patent number: 7487805Abstract: A triple layer papermaker's fabric includes: a set of top MD yarns; a set of top CMD yarns interwoven with the top MD yarns to form a top fabric layer; a set of bottom MD yarns; a set of bottom CMD yarns interwoven with the bottom MD yarns to form a bottom fabric layer; and a set of stitching yarn pairs that interweave with the top MD yarns, wherein at least one of the yarns of each stitching yarn pair interweaves with the bottom MD yarns. The top MD yarns and the top CMD yarns are interwoven in a series of repeat units and the bottom MD yarns and the bottom CMD yarns are interwoven in a series of corresponding repeat units. The set of top MD yarns comprises a first number of top MD yarns in each repeat unit, and the set of bottom MD yarns comprises a second number of bottom MD yarns in each repeat unit, wherein the second number being greater than the first number. Each bottom MD yarn follows a different interweaving pattern than that followed by each of its two immediate neighboring bottom MD yarns.Type: GrantFiled: January 31, 2007Date of Patent: February 10, 2009Assignee: Weavexx CorporationInventors: Christine Barratte, Stewart Hay, Kevin John Ward
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Patent number: 7484538Abstract: A papermaker's fabric includes: a set of top machine direction yarns; a set of top cross machine direction yarns interwoven with the top machine direction yarns to form a top fabric layer; a set of bottom machine direction yarns; a set of bottom cross machine direction yarns interwoven with the bottom machine direction yarns to form a bottom fabric layer; and a plurality of stitching yarns interwoven with the top and bottom fabric layers. The yarns are interwoven as a series of repeat units. In each of the repeat units, each top cross machine direction yarn forms multiple paper side floats, and at least a first of the paper side floats passes over a first number of top machine direction yarns, and at least a second of the paper side floats passes over a second number of top machine direction yarns that differs from the first number by one.Type: GrantFiled: August 31, 2006Date of Patent: February 3, 2009Assignee: Weavexx CorporationInventor: Christine Barratte
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Patent number: 7484537Abstract: In an industrial two-layer fabric, one upper surface side warp and three warp binding yarns are disposed adjacent to each other. Each of the three warp binding yarns appears on the upper side surface in turn and passes over different one or two successive upper surface side wefts. At least one upper surface side weft exists between knuckles formed on the upper side surface by the three warp binding yarns. Adjacent to the upper surface side warp, these three warp binding yarns get together to form on the upper side surface a design which is the same design formed by an upper surface side warp.Type: GrantFiled: August 9, 2006Date of Patent: February 3, 2009Assignee: Nippon Filcon Co., Ltd.Inventor: Ikuo Ueda
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Patent number: 7481907Abstract: A paper transporting felt includes a base layer, a first batt layer formed on a wet paper side surface of the base layer, a second batt layer formed on a roll side surface or a shoe side surface of the base layer, and a wet paper contacting layer formed on a wet paper side surface of the first batt layer so as to come into direct contact with a wet paper. The wet paper contacting layer is formed of a flexible resin material.Type: GrantFiled: December 20, 2005Date of Patent: January 27, 2009Assignee: Ichikawa Co., Ltd.Inventors: Takashi Ouchi, Kenji Inoue