Papermaking Press Felts Patents (Class 162/900)
  • Patent number: 7842166
    Abstract: A permeable belt, a belt press including a roll having an exterior surface and the permeable belt, and a method of drying or pressing a web with the permeable belt. The permeable belt can be tensioned to at least 30 KN/m. A side of the permeable belt has an open area of at least approximately 25% and a contact area of at least approximately 25%. 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: Grant
    Filed: April 22, 2008
    Date of Patent: November 30, 2010
    Assignee: Voith Patent GmbH
    Inventors: Jeffrey Herman, Thomas Thoroee Scherb, Luiz Carlos Silva, Hubert Walkenhaus
  • Patent number: 7811627
    Abstract: A papermaking fabric is treated by applying a nanoparticle type coating to improve their resistance to contamination by foreign matter in the papermaking system. The coating is applied during fabric manufacture and cured during heat setting. Alternatively, the coating applied or renewed by utilizing an existing shower or locating a spray boom or other suitable coating application device in the dryer section to apply the coating to the fabric in a controlled, uniform manner. Prior to application of the coating, the fabric is first thoroughly cleaned such as by showering or spraying, and then dried. Following controlled application of the coating, any excess material is removed by a suitable means, such as by vacuum, and the remaining coating on the fabric is then cured, either by utilizing the ambient heat of the dryer section or by a portable bank of heaters. In this manner, the fabric does not have to be removed from the machine in order to apply or renew the contaminant resistant coating.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: October 12, 2010
    Assignee: AstenJohnson, Inc.
    Inventors: Samuel M. Baker, Rex Barrett, Bud J. Chase, Bruce W. Janda, Ian Gerald Lang, Dietmar Wirtz, Larry Anderson
  • Patent number: 7799175
    Abstract: A stratified press fabric for the press section of a paper machine having a passive sensor system for detecting wear in the press fabric. The lower (non-surface) layer(s) of the stratified press fabric are produced using colored staple fiber batt material. As the surface of the fabric is worn away through use, the colored batt material is exposed to provide a visual indication of the wear. This visual indication allows the customer to readily determine the appropriate time to replace the press fabric.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: September 21, 2010
    Assignee: Albany International Corp.
    Inventor: Robert A. Hansen
  • Patent number: 7758728
    Abstract: The present invention relates generally to papermaking, and relates more specifically to fabrics employed in making press felts on a paper machine, pulp machine fiber cement belts, and corrugated paper board, or box-board. The invention also relates to the monofilament base of fabric optionally with a needled batt which can provide one or more of the following advantages: hydrolysis resistant materials, providing light weight high strength fabrics, having a high permeability, and soft surface with a high coefficient of friction. The present invention also relates to an integrated loop seam integrated with machine direction yarns of the monofilament base which can provide one or more of the following advantages: extremely stable and flexible corrugator fabric, and the ability to provide a non-marking loop seam.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: July 20, 2010
    Assignee: Voith Patent GmbH
    Inventor: William Harwood
  • Patent number: 7758727
    Abstract: A process for producing tissue webs is disclosed. The process includes the step of partially dewatering a tissue web and then subjecting the web to multiple deflections against fabrics prior to drying the tissue web. For instance, in one embodiment, the tissue web is deflected multiple times in between two opposing fabrics. The tissue web can be deflected against the fabrics under sufficient pressure to cause the tissue web to mold against the fabrics. By deflecting the tissue web multiple times, rearrangement of the papermaking fibers contained in the tissue web occurs increasing the bulk of the web.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: July 20, 2010
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Paul Beuther, Frank Druecke, Jeffrey Holz
  • Patent number: 7749925
    Abstract: An industrial fabric having a composite layer, the composite layer having a non-woven mesh layer structure and a yarn layer structure being parallel to the non-woven mesh layer structure. The yarn layer structure has first and second yarns, with the first yarns being connected to the second yarns to form a mesh like structure, and the yarn layer structure being embedded into the non-woven mesh layer structure.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: July 6, 2010
    Assignee: Voith Patent GmbH
    Inventor: Antony Morton
  • Patent number: 7722743
    Abstract: The invention is a method for manufacturing a felt belt having a support which is embedded in a fiber matrix and is made up of at least two yarn layers arranged one above another, at least one is a longitudinal yarn layer made up of longitudinal yarns extending in parallel fashion, and at least one is a transverse yarn layer made up of transverse yarns extending in parallel fashion, transverse yarns being present that are continuous over the width of the felt belt. For each longitudinal yarn layer, a first support module is manufactured, by means of a first auxiliary support web, at a width that is less than the width of the completed felt belt, the first auxiliary support web being wound in helical fashion, before, during, or after the application of yarns, to a width that corresponds to the width necessary for manufacture of the completed felt belt.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: May 25, 2010
    Assignee: Heimbach GmbH & Co. KG
    Inventors: Walter Best, Christian Molls, Dieter Telgmann
  • Patent number: 7722742
    Abstract: The present invention relates generally to fabrics used in papermaking, and relates more specifically to fabrics employed in making corrugated board. The invention also relates to a belt for a corrugated board machine, where the belt includes a coating including an anti-friction modifier which can provide one or more of the following advantages: easy application of the coating to the appropriate area of the fabric, the coating is cost effective, the coating provides for increased belt life on the machine, and increased production quality of corrugated board. The present invention also relates to corrugated board machine including a belt which has a coating containing an anti-friction modifier. The present invention also relates to a method of making a coating for a belt, and a method of applying the coating to a belt where the coating includes an anti-friction modifier.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: May 25, 2010
    Assignee: Voith Patent GmbH
    Inventor: Jean Alphonse Marie Rouhling
  • Patent number: 7691237
    Abstract: 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: Grant
    Filed: September 27, 2006
    Date of Patent: April 6, 2010
    Assignee: Voith Paper GmbH
    Inventor: Arved Westerkamp
  • Patent number: 7670461
    Abstract: 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: Grant
    Filed: June 28, 2006
    Date of Patent: March 2, 2010
    Assignee: Voith Patent GmbH
    Inventor: Arved H. Westerkamp
  • Patent number: 7658821
    Abstract: 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: Grant
    Filed: August 23, 2006
    Date of Patent: February 9, 2010
    Assignee: Voith Patent GmbH
    Inventors: Robert Crook, John Jeffery, Lippi A. Fernandes, Anthony Morton, Justin Payne, David Ponton, Luiz Carlos Silva
  • Patent number: 7641768
    Abstract: 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: Grant
    Filed: August 25, 2006
    Date of Patent: January 5, 2010
    Assignee: Voith Patent GmbH
    Inventors: Sanjay Patel, Robert Crook, Bryan Wilson
  • Patent number: 7638018
    Abstract: 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: Grant
    Filed: September 26, 2006
    Date of Patent: December 29, 2009
    Assignee: Voith Patent GmbH
    Inventors: Arved H. Westerkamp, John Jeffery, Antony Morton
  • Patent number: 7591928
    Abstract: 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: Grant
    Filed: August 31, 2006
    Date of Patent: September 22, 2009
    Assignee: Albany International Corp.
    Inventors: Alan L. Billings, Curtis L. Gardner
  • Patent number: 7582187
    Abstract: A process for producing a fibrous web, in particular a tissue web, includes the following steps: in a pressing zone, the fibrous web is pressed lying between the structured belt and a circulating, unstructured permeable supporting belt; the fibrous web and the structured belt are fed to a press nip provided on a Yankee cylinder; the fibrous web is transferred from the structured belt to the surface of the Yankee cylinder in the region of the press nip; and the surface of the Yankee cylinder is doctored off continuously and then recoated again, so that a renewed coating is always present in the press nip.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: September 1, 2009
    Assignee: Voith Patent GmbH
    Inventors: Thomas Scherb, Luiz Carlos Silva, Davilo Oyakawa, Rogerio Berardi
  • Patent number: 7550061
    Abstract: 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: Grant
    Filed: April 28, 2006
    Date of Patent: June 23, 2009
    Assignee: Voith Paper Patent GmbH
    Inventors: Hubert Walkenhaus, Robert L. Crook, Calvin Hayden
  • Patent number: 7527707
    Abstract: 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: Grant
    Filed: October 5, 2007
    Date of Patent: May 5, 2009
    Assignee: Albany International Corp.
    Inventors: Francis L. Davenport, Charles E. Kramer, Joseph G. O'Connor, Maurice Paquin
  • Patent number: 7517434
    Abstract: 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: Grant
    Filed: February 6, 2006
    Date of Patent: April 14, 2009
    Assignee: Ichikawa Co., Ltd.
    Inventors: Takashi Ouchi, Kenji Inoue
  • Patent number: 7514030
    Abstract: 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: Grant
    Filed: December 30, 2002
    Date of Patent: April 7, 2009
    Assignee: Albany International Corp.
    Inventors: Anders Nilsson, Goran Nilsson, Ademar Lippi Fernande, David Rougvie, Lynn Kroll, Jeffrey Scott Denton
  • Patent number: 7481907
    Abstract: 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: Grant
    Filed: December 20, 2005
    Date of Patent: January 27, 2009
    Assignee: Ichikawa Co., Ltd.
    Inventors: Takashi Ouchi, Kenji Inoue
  • Patent number: 7481906
    Abstract: 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 fibrous 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 fibrous layer is made of modified cross-section fibers.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: January 27, 2009
    Assignee: Ichikawa Co., Ltd.
    Inventors: Takashi Ouchi, Kenji Inoue
  • Patent number: 7476293
    Abstract: 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: Grant
    Filed: October 26, 2004
    Date of Patent: January 13, 2009
    Assignee: Voith Patent GmbH
    Inventors: Jeffrey Herman, Thomas Thoroee Scherb, Luiz Carlos Silva, Hubert Walkenhaus
  • Patent number: 7476294
    Abstract: A permeable belt, a belt press including a roll having an exterior surface and the permeable belt, and a method of drying or pressing a web with the permeable belt. The permeable belt can be tensioned to at least 30 KN/m. A side of the permeable belt has an open area of at least approximately 25% and a contact area of at least approximately 25%. 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: Grant
    Filed: October 26, 2004
    Date of Patent: January 13, 2009
    Assignee: Voith Patent GmbH
    Inventors: Jeffrey Herman, Thomas Thoroee Scherb, Luiz Carlos Silva, Hubert Walkenhaus
  • Patent number: 7473336
    Abstract: The present invention provides a multilayer multiaxial fabric for a paper machine having a reduced interference pattern and accordingly improved dewatering uniformity. The present invention also provides a method of forming such a multilayer multiaxial fabric.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: January 6, 2009
    Assignee: Albany International Corp.
    Inventors: John M. Hawes, Glenn Kornett
  • Patent number: 7462257
    Abstract: A process for producing tissue webs is disclosed. The process may include the step of partially dewatering a tissue web, subjecting the web to at least one deflection against a fabric, such as a coarse fabric, and then creping the web. During the process, after being dewatered, the tissue web is transferred from a transfer conveyor to the fabric using a pneumatic force, such as a suction force. In order to prevent liquids from rewetting the tissue web as the tissue web is being transferred to the fabric, the transfer conveyor is made from a material that inhibits or prevents liquids from flowing into the tissue web. For instance, in one embodiment, the transfer conveyor may comprise a felt comprised of small capillary materials. The felt may have an intake rate, for instance, of less than about 150 ?L/s when wet, may have a mean free pore size of less than about 20 microns, and may have a minimum pore size of less than about 5 microns.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: December 9, 2008
    Assignee: Kimberly-Clark Worldwide, inc.
    Inventors: Paul D. Beuther, Jeffrey D. Holz, Stephanie Lee Oliver
  • Patent number: 7455078
    Abstract: A method of making a seam for an endless woven multilayer papermakers fabric such as a press felt base fabric, comprises selecting a repeating weave pattern so as to provide during weaving a body portion woven as a double layer, and a shed change for the warp yarns adjacent to the warp yarns of the body portion to provide a first and second seaming portion. In each seaming portion the warp yarns are separated into an upper group and a lower group such that the weft yarn interweaves separately with each group to form a distinct upper and lower layer. A forming wire is provided at the vertically aligned lateral edges of the fabric, and the weft yarn in sequence interweaves with the upper group of warp yarns to provide the upper layer, forms a seaming loop about the forming wire and interweaves with the lower group of warp yarns to provide the lower layer. The method and a fabric made by the method provide improved uniformity of the seaming loops and reduced sheet marking in the seam area.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: November 25, 2008
    Assignee: AstenJohnson, Inc.
    Inventor: Brent Swaine
  • Patent number: 7455752
    Abstract: A papermaker's fabric formed by arranging a number of layers in a predetermined manner, wherein at least one layer comprises a material which is woven, knitted or braided and has a first melting point temperature and wherein each of the remaining layers has a melting point temperature which is higher than said first melting point temperature; and heating said number of layers to a temperature at least equal to said first melting point temperature and less than said melting point temperature of each of the remaining layers such that said at least one layer melts without melting the remaining layers.
    Type: Grant
    Filed: July 22, 2004
    Date of Patent: November 25, 2008
    Assignee: Albany International Corp.
    Inventor: Robert A. Hansen
  • Patent number: 7448416
    Abstract: An industrial fabric is described which comprises a woven fabric body having opposing ends. The fabric repeating weave pattern includes at least two systems of vertically stacked machine direction warp yarns interwoven with at least one system of cross machine direction weft yarns. On each end of the fabric at least some of the warp yarns form a first set of loops each of which is at a first angle to the machine direction, at least some of the warp yarns form a second set of loops each of which is at a second angle to the machine direction and each of the second set of loops is substantially concentric with the first set of angled loops to provide double end loops which can be seamed by using a coil seam or a pin seam. This fabric structure has the advantage that it is possible to use all of the fabric warp yarns in the loops, thus significantly increasing the tensile strength of the seam. It also permits the fabrication of a flatter seam.
    Type: Grant
    Filed: March 19, 2004
    Date of Patent: November 11, 2008
    Assignee: AstenJohnson, Inc.
    Inventor: James Harrison
  • Patent number: 7442426
    Abstract: A papermaking press felt comprises a base body, a batt layer, and an anti-rewetting layer comprising a non-oriented film, all intertwiningly integrated by needle punching. The anti-rewetting layer has openings with a three-dimensional structure, with an aperture on the paper web side larger than the aperture on the roll side. This press felt exhibits an excellent anti-rewetting effect while maintaining its water removing capability.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: October 28, 2008
    Assignee: Ichikawa Co., Ltd.
    Inventors: Masufumi Shimodaira, Hiroyuki Oda, Yasuhiko Kobayashi, Akira Onikubo
  • Patent number: 7441566
    Abstract: Triple layer papermaker's forming fabrics having a set of top MD yarns that are interwoven exclusively with a set of top CMD yarns to form at least part of a top fabric layer and a set of bottom MD yarns that are interwoven exclusively with a set of bottom CMD yarns to form at least part of a bottom fabric layer are provided. These fabrics further include a set of stitching MD yarn pairs. The stitching MD yarns that comprise each such pair weave in both the top fabric layer and the bottom fabric layer such that at locations where the first yarn in the pair weaves in the top fabric layer the second yarn in the pair drops down into the bottom fabric layer. In embodiments of the present invention, each stitching MD yarn may also be woven so as to form side-by-side machine direction knuckles on the bottom surface of the bottom fabric layer with a bottom MD yarn.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: October 28, 2008
    Assignee: Weavexx Corporation
    Inventor: Kevin John Ward
  • Patent number: 7415993
    Abstract: A composite forming fabric (10) comprising a paper side layer (12) having a paper side surface, a machine side layer (14) having a bottom wear side surface, and a plurality of pairs of first and second intrinsic, interchanging weft binder yarns (16,18,20, . . . 34) for binding together the paper side layer (12) and the machine side layer (14). At least of said plurality of pairs of first and second intrinsic, interchanging weft binder yarns have at least four segments (S1-S4) in the paper side layer (12) within each repeat of the weave pattern in the fabric, and these segments provide an unbroken weft path in the paper side surface. Each of the first and second intrinsic, interchanging weft binder yarns (16,18,20, . . . 34) of each binder pair having at least four segments (S1-S4) in the paper side layer (12) within each repeat of the weave pattern binds to at least one warp yarn (2-20) in the machine side layer (14) vertically underlying one of the segments (S1-S4).
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: August 26, 2008
    Assignee: Voith Patent GmbH
    Inventors: Stewart Lister Hay, Scott Quigley
  • Patent number: 7406985
    Abstract: A papermaking screen, especially for the sheet forming zone, has one paper side and one machine side with a first type of transverse yarns of the paper side and a second type of transverse yarns (25 to 40) of the machine side. The transverse yarns are woven with at least one type of longitudinal yarns (41 to 56). The longitudinal yarns (41 to 56) on the machine side within the machine-side pattern repeat bind two respective transverse yarns of the second type (25, 28; 31, 34; 37, 40). The division of the intersections for the longitudinal yarns is then improved, so that marks in the paper to be produced are prevented to the greatest extent possible.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: August 5, 2008
    Assignee: Andreas Kufferath GmbH & Co. KG
    Inventors: Wolfgang Heger, Klaus Fichter
  • Patent number: 7393434
    Abstract: A method of stabilizing the seam loops of a papermaking fabric or other industrial fabric until the fabric is ready to be installed and seamed on a machine. Stabilizing the loops prevents torque imbalance and other forces from distorting the loop alignment over time, thereby making the loops easier to connect and seam when the fabric is ready to be installed.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: July 1, 2008
    Assignee: Albany International Corp.
    Inventor: Glenn Kornett
  • Patent number: 7384515
    Abstract: A fabric and a method of forming a fabric formed by the steps of providing an endless fabric having at least two layers of MD yarns, raveling CD yarns in an area of said endless fabric to be cut, cutting at least one layer of MD yarns at a first predetermined location, and cutting at least one layer of MD yarns at a second predetermined location. The method also includes steps of folding the endless fabric in half in the MD direction, placing the first and second predetermined locations proximally to one another, forming loops from at least one uncut layer of MD yarns when said fabric is folded, and seaming the loops to form an endless fabric.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: June 10, 2008
    Assignee: Albany International Corp.
    Inventors: Tobias Byfeldt, Bjorn Rydin
  • Patent number: 7381308
    Abstract: A method of seaming an on-machine-seamable multiaxial papermaker's fabric to prevent yarn migration. The multiaxial fabric is in the form of an endless loop flattened into two layers along fold lines. CD yarns are removed from the folds to create extended ravel areas. This leaves the MD yarns unbound in the ravel areas. Seam loops are then formed from the unbound MD yarns at the folds. CD materials (e.g. continuous CD yarns) are affixed to (rewoven into) the fabric along the edges of the ravel area at each fold. The affixed CD materials bind the CD yarn tails along the edges of the ravel areas to prevent migration of CD yarn tails into the seam area.
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: June 3, 2008
    Assignee: Albany International Corp.
    Inventors: Glenn Kornett, Bjorn Rydin, Bodil Jonasson, Sandra Rae, Frank Oxley, Dave Krebs
  • Patent number: 7381665
    Abstract: A press felt for papermaking comprises a base body, a fibrous assembly, and a three-dimensional knitted fabric layer comprising two pieces of fabric connected by connecting fibers. The three-dimensional knitted fabric layer is disposed within the press felt at a distance from both the wet paper web contact surface and the machine contact surface of the felt. At least some of the connecting fibers are diagonal fibers.
    Type: Grant
    Filed: January 10, 2005
    Date of Patent: June 3, 2008
    Assignee: Ichikawa Co., Ltd.
    Inventors: Akira Onikubo, Hiroyuki Oda, Yasuhiko Kobayashi
  • Patent number: 7381306
    Abstract: The invention concerns a paper machine belt having front ends (6, 7) extending transversely to the machine direction and having a yarn structure (2, 4) made up of longitudinal yarns (3) extending in the machine direction and transverse yarns (5) extending transversely to the machine direction, and having a coupling device (8, 32, 52, 62, 72, 82, 92) connecting or capable of connecting the front ends (6, 7), which device comprises at both front ends (6, 7) coupling elements (9, 10; 33, 34, 35, 36; 53, 54; 63, 64: 83, 84; 93, 94) engaging respectively onto the yarn structure (2, 4); which is characterized in that the coupling elements (9, 10; 33, 34, 35, 36; 53, 54; 63, 64; 83, 84; 93, 94) are propping themselves against the side facing away from the front edges (6, 7) transverse yarns (5) belonging to the yarn structure (2, 4).
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: June 3, 2008
    Assignee: Heimbach GmbH & Co
    Inventors: Walter Best, Christian Molls
  • Patent number: 7381307
    Abstract: The invention relates to a method of manufacturing a press felt and to a press felt and a base fabric. The base fabric comprises at least a first planar compo-nent (4), which includes a first transverse (CMD) joining edge area (11) and a second transverse joining edge area (12). The joining edge areas (11, 12) are arranged to overlap each other and attached to each other undetachably.
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: June 3, 2008
    Assignee: Tamfelt OYJ ABP
    Inventor: Leena Silakoski
  • Patent number: 7373957
    Abstract: A papermaking screen includes at least one individual fabric for the paper side and at least one individual fabric for the machine side. Each of those fabrics is provided with a set of weft yarns (4, 6) and warp yarns (1, 5). At least one part of the superimposed individual fabrics is interconnected via binder yarns (3). The two fabric layers (paper side and machine side) are connected by binder yarns that are fully integrated into the fabric structure of the paper side and are able to support the resulting binding point due to each binder yarn (3) engaging with warp yarns (1) of the individual fabric from above at defined points on the paper side, while at least one weft yarn (2) of the individual fabric engages with the warp yarns (1) from below on the opposite side so as to lean against it such that the binder yarns remain on one plane along with the weft and the remaining warp yarns.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: May 20, 2008
    Assignee: Andreas Kufferath GmbH & Co. KG
    Inventors: Wolfgang Heger, Klaus Fichter
  • Patent number: 7374639
    Abstract: A papermaking belt having a reinforcing structure and a pattern layer is disclosed. The reinforcing layer has a first layer of interwoven machine direction yarns and cross-machine direction yarns. The machine direction and cross-machine direction yarns of the first layer are interwoven in a weave. The pattern layer extends outwardly from and into the first layer. The pattern layer provides a web contacting surface facing outwardly from the first layer. The pattern layer further has at least one region having an amorphous pattern of elongate two-dimensional geometrical shapes having a longitudinal axis having an angle relative to either of the machine direction or the cross-machine direction. The amorphous pattern of two-dimensional geometrical shapes has a statically controlled degree of randomness.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: May 20, 2008
    Assignee: The Procter & Gamble Company
    Inventors: Robert Stanley Ampulski, Osman Polat
  • Patent number: 7357155
    Abstract: A multi-layer fabric which may be utilized in a papermaking process. The fabric layers are bound together by plural pairs of weft binder yarns. Each binder yarn within a pair weaves a different contour pattern and combines with the other binder yarn in that pair to form a plain weave pattern in the top layer. Each of the plural pairs is comprised of binding yarns that weave different contour patterns from the next pair.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: April 15, 2008
    Assignee: Albany International Corp.
    Inventors: Ernest Fahrer, Monique Fagon
  • Patent number: 7357972
    Abstract: A liquid-permeable support for a paper machine clothing that is usable in the press section of a paper machine includes a support having at least two plies that brace against one another via discrete bracing elements. At the points where the plies brace against one another, there is applied on one or both sides an elastic coating which is embodied elastically in such a way that the spacing of the plies under pressure loading is decreased by elastic compression of the coating. Upon pressure relief the spacing is increased again by elastic recovery of the coating.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: April 15, 2008
    Assignee: Heimbach GmbH & Co
    Inventor: Walter Best
  • Patent number: 7323087
    Abstract: An anti-rewet fabric is used for carrying a fiber web through an air press. The ant-rewet fabric includes at least one air distribution fabric layer, one air distribution fabric layer being configured for contacting the fiber web, and a perforated film layer and/or a spectra membrane, at least the perforated film layer being made of a polymeric or polyester film. At least the perforated film layer has a first film side and a second film side, the first film side being one of laminated and attached to the one air distribution fabric layer.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: January 29, 2008
    Assignee: Voith Paper Patent GmbH
    Inventor: David A. Beck
  • Patent number: 7311806
    Abstract: Papermaking felt containing a hydrophilic urethane resin that can maintain functions such as water drainage, wet-paper smoothness, and wet-paper transportability by imparting a hydrophilic property to the papermaking felt thereby preventing the deposition and accumulation of adhesive contaminants without impairing the compression recoverability of the felt thus sustaining its antifouling capability.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: December 25, 2007
    Assignee: Ichikawa Co. Ltd.
    Inventors: Takashi Ouchi, Kazumasa Watanabe
  • Patent number: 7306014
    Abstract: In a lower surface side layer of an industrial two-layer fabric, warps are formed by sequentially arranging a repeating design unit, in which one warp passes over six successive lower surface side wefts, passes under one lower surface side weft, passes over two lower surface side wefts, and passes under one lower surface side weft while shifting the design by three lower surface side wefts. Two adjacent lower surface side warps simultaneously weave therein, from the lower surface side, one lower surface side weft, whereby the lower surface side weft passes over two lower surface side warps and then passes under eight lower surface side warps to form a weft long crimp corresponding to eight lower surface side warps on the lower surface side surface.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: December 11, 2007
    Assignee: Nippon Filcon Co., Ltd.
    Inventors: Hiroyuki Nagura, Ikuo Ueda, Keiichi Takimoto
  • Patent number: 7306704
    Abstract: A method of manufacturing a press felt, a press section, and a press felt. The press felt comprises a base structure (11), a batt fibre layer (12) being attached to a first, web-side surface (B) of the base structure. Further, the structure of the press felt is compacted by treating it with a polymer material at least on the side of the first felt surface (B). After the polymer treatment, the surface of the felt is ground smooth.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: December 11, 2007
    Assignee: Tamfelt Oyj ABP
    Inventor: Kari Hyvönen
  • Patent number: 7306703
    Abstract: The present invention is directed to fabrics for paper making machines that are rendered contamination resistant and maintain good permeability as a result of a durable coating that lasts the entire life of the fabric. A fluoropolymer will render the fabric contamination resistant over the entire fabric lifetime.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: December 11, 2007
    Assignee: Albany International Corp.
    Inventor: John M. Hawes
  • Patent number: 7297233
    Abstract: A dewatering system in a paper machine includes a dewatering fabric and a press. The dewatering fabric includes a woven permeable fabric and a polymeric layer having openings therethrough, the polymeric layer is connected to the permeable fabric. The press applying pressure to a portion of the dewatering fabric.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: November 20, 2007
    Assignee: Voith Paper Patent GmbH
    Inventors: Jeffrey Herman, Thomas Thoröe Scherb, Luiz Carlos Silva
  • Patent number: 7297234
    Abstract: 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: Grant
    Filed: January 27, 2006
    Date of Patent: November 20, 2007
    Assignee: Albany International Corp.
    Inventors: Francis L. Davenport, Charles E. Kramer, Joseph G. O'Connor, Maurice Paquin
  • Patent number: 7294238
    Abstract: One embodiment of the present invention is an endless non-woven tissue making fabric having a three-dimensional texture suitable for use as a fabric for producing three-dimensional fibrous webs. The endless non-woven tissue making fabric comprises a plurality of substantially parallel adjoining sections of non-woven material. Each section of non-woven material has a width substantially less than the width of the non-woven tissue making fabric. Each section of non-woven material may be joined to at least one other adjoining section of non-woven material. The non-woven tissue making fabric has a machine direction, a cross-machine direction, a tissue contacting surface and a tissue machine contacting surface. The tissue contacting surface comprises solid matter at a plurality of heights such that the tissue contacting surface of the non-woven tissue making fabric has an Overall Surface Depth of at least 0.2 mm in regions of solid matter on the tissue contacting surface.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: November 13, 2007
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Andrew Peter Bakken, Mark Alan Burazin, Jeffrey Dean Lindsay