Means Removing Web Product From Molding Surface Patents (Class 162/306)
  • Patent number: 10768557
    Abstract: An intermediary transfer belt includes a base layer; an elastic layer laminated on or above the base layer and formed with a silicone rubber as an elastic member; an intermediary layer laminated on or above the elastic layer; and a surface layer laminated on or above the intermediary layer. The elastic layer is 60 degrees or less in JIS-A hardness and is 5 degrees or more in JIS-E hardness. The intermediary layer is 0.1 g/m2·24 h or more and 600 g/m2·24 h or less in water vapor permeability coefficient and is 1 ?m or more and 15 ?m or less in average thickness.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: September 8, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kaoru Okamoto, Kazuhisa Shirayama, Ryosuke Tsuruga, Yasutomo Tsuji
  • Patent number: 10513826
    Abstract: Method for producing wet-laid non-woven fabrics, with which an aqueous suspension comprising fibres is laid down on a screen and is dewatered using suction boxes under the screen to form a sheet of non-woven web which is removed from the screen and guided to at least one subsequent treatment unit before the non-woven web can be wound, and transferring of the non-woven web from the screen to the at least one subsequent treatment unit and/or transferring of the non-woven web to interfaces between treatment units on the start of production and/or after an interruption in production, using a web feed, wherein web is fed via a temporarily closed draw of a free draw between the screen and the at least one subsequent treatment unit and/or of a free draw at an interface between treatment units, and the respective temporarily closed draw is produced via air flows, which lift off an end feeding strip as part of the running non-woven web by blowing, adhere same to a transport path device by generating negative pressure
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: December 24, 2019
    Assignee: Andritz Küsters GmbH
    Inventors: Dennis Latendorf, Andreas Pesch, Florian Diederich
  • Patent number: 9920477
    Abstract: The object of the present invention is to reduce the wear of the doctor blade applied to the wet paper web transfer belt and the wear of the guide rolls supporting the wet paper web transfer belt while maintaining the wear resistance of the wet paper web contacting surface and the machine contacting surface of the wet paper web transfer belt together with the adhesive and releasing properties of the wet paper web on the wet paper web contacting surface of conventional wet paper web transfer belts. This is achieved by a wet paper web transfer belt in which a polyurethane is integrated with a reinforcing base material comprising a wet paper web-side surface and a machine-side surface, at least the wet paper web-side surface of the reinforcing base material is embedded in the polyurethane, an outer circumferential layer comprising a wet paper web contacting surface is constituted by some of the polyurethane; wherein, at least the outer circumferential layer comprises a spherical filler.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: March 20, 2018
    Assignee: Ichikawa Co., Ltd.
    Inventors: Kenji Inoue, Ryo Umehara, Ai Tamura, Yuta Sugawara
  • Patent number: 9359723
    Abstract: A machine for producing fiber-containing web material, in particular tissue paper, includes a permeable dewatering belt for transporting fiber-containing source material used for producing web material from a forming section to a suction/pressing section, and a press belt assembly assigned to the suction/pressing section. The source material is received in the suction/pressing section between the press belt assembly and the dewatering belt and the press belt assembly presses the source material and the dewatering belt against a suction assembly of the suction/pressing section. The press belt assembly has a single press belt providing a source material contact surface.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: June 7, 2016
    Assignee: Voith Patent GmbH
    Inventors: Hubert Walkenhaus, Johan Einarsson, Ademar Lippi Alves Fernandes
  • Patent number: 9145643
    Abstract: A wet paper web transfer belt for transferring a wet paper web includes a wet paper web contacting surface for carrying the wet paper web. The wet paper web contacting surface is constituted by a resin layer, and the wet paper web contacting surface includes a wet paper web carrying region for carrying the wet paper web. A prescribed relation of the swelling rate in water of the resin layer and the surface roughness of the wet paper web contacting surface is fulfilled in accordance with the basis weight of the base paper of the wet paper web.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: September 29, 2015
    Assignee: ICHIKAWA CO., LTD.
    Inventors: Kenji Inoue, Masatoshi Kono, Ryo Umehara, Ai Tamura, Toshihiro Tsuji
  • Publication number: 20150122444
    Abstract: The invention provides a doctor blade holder system that includes a doctor blade support structure, an adjustment profiling plate, and a series of adjustment mechanisms. The doctor blade support structure includes an elongated slot for receiving a doctor blade and a separate elongated slot to house mounting hardware. The adjustable profiling plate causes pressure to be applied to the working blade in a continuous manner along the length of the working blade, wherein the profiling plate is mounted to a holder mounting plate with a series of pairs of mounting structures allowing unconstrained flexure, or rotation, of the profiling plate with respect to holder mounting plate around two axes. The series of adjustment mechanisms attach to the holder mounting plate and acting on the profiling plate, wherein the adjustment mechanisms are capable of displacing the profiling plate in a bi-directional manner.
    Type: Application
    Filed: November 6, 2014
    Publication date: May 7, 2015
    Inventors: Allen Brauns, David Leeman, Robert Johnson
  • Patent number: 8764943
    Abstract: An industrial fabric, belt or sleeve and a method of making the fabric, belt or sleeve are disclosed. The industrial fabric, belt or sleeve is produced by spirally winding strips of polymeric material, such as an industrial strapping or ribbon material, and joining the adjoining sides of the strips of material using ultrasonic welding or laser welding techniques. The fabric, belt or sleeve may then be perforated using a suitable technique to make it permeable to air and/or water.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: July 1, 2014
    Assignee: Albany International Corp.
    Inventors: Dana Eagles, Robert Hansen, Jonas Karlsson
  • Patent number: 8500958
    Abstract: The invention relates to a transport or processing belt for a machine for the production or treatment of a fiber web, particularly a paper, cardboard or tissue machine, having a paper side and a conveying side and comprising a polymer coating and a textile load-bearing fabric, wherein the textile fabric has a first side facing the paper side and a second side facing the conveying side. The textile fabric is permeable with a permeability of at least 300 cfm, preferably of at least 500 cfm, and the polymer coating extends in one piece from the first side of the textile fabric though the openings of the textile fabric to the second side of the textile fabric.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: August 6, 2013
    Assignee: Voith Patent GmbH
    Inventors: John Jeffrey, Michael Spence, Andrew Allum, Paul Rydin
  • Patent number: 8394239
    Abstract: An industrial fabric, belt or sleeve and a method of making the fabric, belt or sleeve are disclosed. The industrial fabric, belt or sleeve is produced by spirally winding strips of polymeric material, such as an industrial strapping or ribbon material, and joining the adjoining sides of the strips of material using ultrasonic welding or laser welding techniques. The fabric, belt or sleeve may then be perforated using a suitable technique to make it permeable to air and/or water.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: March 12, 2013
    Assignee: Albany International Corp.
    Inventors: Dana Eagles, Jonas Karlsson, Bruce Stowe, Joseph Botelho, Sabri Mourad, Jerry O'Connor, Jon Montcrieff, Robert Hansen
  • Patent number: 8282782
    Abstract: A wet paper web transfer belt (1) has a wet paper web-side layer (31) including a resin and a hydrophilic fibrous body (30) and a machine-side layer (32). A basic fabric (33) disposed in the belt comprises a first woven fabric (34) disposed on a wet paper web (W) side and a second woven fabric (35) disposed on a press roll (10) side. The first woven fabric (34) and the second woven fabric (35) are stacked together. At least a portion of the hydrophilic fibrous body (30) is exposed on a surface (37) of the wet paper web-side layer (31). The basis weight of the first woven fabric (34) is greater than the basis weight of the second woven fabric (35). The structure is effective to improve a first function to cause the wet paper web (W) to stick thereon and to transfer the wet paper web (W), and a second function to allow the wet paper web (W) to be smoothly released from the belt for transferring the wet paper web (W) to a next process.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: October 9, 2012
    Assignee: Ichikawa Co., Ltd.
    Inventors: Takeshi Sawada, Kenji Inoue
  • Patent number: 8147654
    Abstract: A wet paper web transfer belt (1) has a wet paper web-side layer (31), including a hydrophilic fibrous body (30), and a machine-side layer (32). A base fabric (33) disposed in the belt comprises a first woven fabric (34), disposed on a wet paper web (W) side, and a second woven fabric (35) disposed on a press roll (10) side, and the first woven fabric (34) and the second woven fabric (35) are stacked together. A portion of the hydrophilic fibrous body (30) is exposed on a surface (37) of the wet paper web-side layer (31). The first woven fabric (34) and the second woven fabric (35) include weft yarns (36) made of a material of low water absorptivity. When the hydrophilic fibrous body (30) is formed in the wet paper web-side layer (31) of the belt (1) by needle punching, an increase in the widthwise dimension of the belt due to the absorption of water by the hydrophilic fibrous body (30) is reduced.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: April 3, 2012
    Assignee: Ichikawa Co., Ltd.
    Inventors: Takeshi Sawada, Kenji Inoue
  • Patent number: 8110072
    Abstract: A papermaking machine for making uncreped through air dried paper having a forming section, a press section, and a drying section is disclosed. The paper web is pressed between two press members while enclosed between a press felt and a transfer belt having non-uniformly distributed microscopic depressions in its surface. The web follows the transfer belt from the press to a transfer point at which the web is transferred via a suction transfer device onto a structuring fabric. The web is then dried with a through air dryer.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: February 7, 2012
    Assignee: The Procter & Gamble Company
    Inventor: Robert Stanley Ampulski
  • Patent number: 7981820
    Abstract: A press fabric for a machine for the production of web material, especially paper or cardboard, includes a carrying structure and at least one layer of fibrous material on one web material contact side of the carrying structure, whereby at least some of the fibers of the at least one layer of fibrous material are coated at least partially with a film of a first polymeric material and whereby a permeable composite structure is formed by a second polymeric material in the at least one fibrous layer, in that the hollow spaces which are formed between fibers of the at least one fibrous layer are filled partially with the second polymeric material.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: July 19, 2011
    Assignee: Voith Patent GmbH
    Inventors: Arved Westerkamp, Robert Crook, Robert Eberhardt
  • Patent number: 7931780
    Abstract: A wet paper web transfer belt comprises a base body 30, a paper side layer 20, and a machine side layer 23. The paper side layer 20 is composed of a paper contacting side batt layer 21 made of hydrophilic fibers 41 and a base bode side batt layer 22 without the hydrophilic fibers 41, at least the paper contacting side batt layer 21 being impregnated with a high molecular weight elastic body 50 and at least a part of the hydrophilic fibers 41 being exposed on the surface of the paper contacting side batt layer 21. The water contained in the wet paper web remains within the paper contacting side batt layer 21 made of the hydrophilic fibers 41 with only a small amount of water moving into the base body side batt layer 22, thereby reducing dimensional changes of the belt.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: April 26, 2011
    Assignee: Ichikawa Co. Ltd.
    Inventor: Kenji Inoue
  • Patent number: 7871497
    Abstract: A covering for a machine for treating a material web, in particular a fibrous web, has a multilayer construction with at least two layers formed respectively by at least one polyurethane film, between which there lies a layer made of a reinforcement fabric whose mesh widths are selected such that the two adjacent layers of polyurethane film touch each other in the meshes. This covering can be used advantageously in particular as a transfer belt or a dryer fabric.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: January 18, 2011
    Assignee: Voith Patent GmbH
    Inventor: Arved Westerkamp
  • Patent number: 7776188
    Abstract: A transport belt for a machine for producing a fiber material web, in particular paper or paperboard, has, on a web material side, a web material contact surface and, on a machine side, a machine contact surface, wherein a multiplicity of depressions are provided in the transport belt on the machine side.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: August 17, 2010
    Assignee: Voith Patent GmbH
    Inventors: Antony Morton, Daniel Gronych, Michael Straub
  • Patent number: 7776186
    Abstract: A transport belt, in particular for machines for the production of web material such as paper or paperboard, having a printed material at least in some regions on a web material contact side.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: August 17, 2010
    Assignee: Voith Patent GmbH
    Inventors: Arved H. Westerkamp, Matthias Schmitt
  • Patent number: 7744726
    Abstract: Dewatering system for dewatering a web. The system comprises a former, a belt press, and a structured fabric comprising a paper web facing side and being guided over a support surface and through the belt press. The structured fabric runs at a speed differential relative to a wire of the former. 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 13, 2007
    Date of Patent: June 29, 2010
    Assignee: Voith Patent GmbH
    Inventors: Thomas T. Scherb, Luiz Carlos Da Silva, Rogerio Berardi, Danilo Oyakawa
  • Patent number: 7722741
    Abstract: This invention relates to a machine for the production of a paper web, paperboard web or tissue web, having a roller with a circumferential surface and having an endless belt, in particular a transfer belt, which is wrapped around the circumferential surface of the roller in sections and has a bottom side which in the wrap zone can be brought into contact with the circumferential surface, as the result of which the endless belt and/or the roller provide a storage capacity suitable for accommodating at least in part the fluid which gets into the wrap zone between the bottom side and the circumferential surface.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: May 25, 2010
    Assignee: Voith Patent GmbH
    Inventors: Daniel Gronych, Robert Koplin, Klaus Hermann, Georg Kleiser, Arved H. Westerkamp
  • 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: 7674356
    Abstract: A paper machine belt that includes at least one layer having parallel yarns. Additionally, a ratio of a volume of the parallel yarns in the at least one layer to a void volume in the at least layer is greater than 1:1.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: March 9, 2010
    Assignee: Voith Fabrics Patent GmbH
    Inventors: Kjell Anders Karlsson, Vaeinoe Per-Ola Lidar
  • Publication number: 20100043996
    Abstract: A wet paper web transfer belt (1) has a wet paper web-side layer (31), including a hydrophilic fibrous body (30), and a machine-side layer (32). A base fabric (33) disposed in the belt comprises a first woven fabric (34), disposed on a wet paper web (W) side, and a second woven fabric (35) disposed on a press roll (10) side, and the first woven fabric (34) and the second woven fabric (35) are stacked together. A portion of the hydrophilic fibrous body (30) is exposed on a surface (37) of the wet paper web-side layer (31). The first woven fabric (34) and the second woven fabric (35) include weft yarns (36) made of a material of low water absorptivity. When the hydrophilic fibrous body (30) is formed in the wet paper web-side layer (31) of the belt (1) by needle punching, an increase in the widthwise dimension of the belt due to the absorption of water by the hydrophilic fibrous body (30) is reduced.
    Type: Application
    Filed: October 26, 2007
    Publication date: February 25, 2010
    Applicant: ICHIKAWA CO., LTD.
    Inventors: Takeshi Sawada, Kenji Inoue
  • 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: 7611605
    Abstract: The roll properties of tissue sheets are improved by offsetting recurring surface features of the sheet relative to the surface features of adjacent sheets within the roll, such as by providing a throughdryer fabric with an offset seam. This provides the resulting tissue sheets with improved capabilities for providing an improved combination of roll bulk and roll firmness.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: November 3, 2009
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Mark Alan Burazin, Edward Joseph VanRengen, Kenneth Curtis Larson, Jerome Steven Veith, Ralph Lee Anderson, Michael William Veith
  • 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: 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: 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: 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: 7332060
    Abstract: Twin-wire former for producing a fibrous web. The former includes two endless wire belts arranged to form a twin-wire zone, a dewatering element, and a headbox positioned at an angle relative to an imaginary first horizontal plane. The twin-wire zone includes a first section in which the two wire belts are arranged to run over the dewatering element. The two wire belts are further positioned to form a wedge-like inlet gap that is structured and arranged to receive a fibrous stock suspension directly from the headbox. Additional dewatering elements are utilized. The twin-wire zone includes a second section in which the two wire belts along with the fibrous web formed between the two wire belts are arranged to run downward over the additional dewatering elements. 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: January 13, 2005
    Date of Patent: February 19, 2008
    Assignee: Voith Paper Patent GmbH
    Inventors: Alfred Bubik, Joachim Henssler, Jürgen Prössl, Franz Stelzhammer
  • 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
  • Patent number: 7285185
    Abstract: 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: Grant
    Filed: October 15, 2004
    Date of Patent: October 23, 2007
    Assignee: IchikawaCo., Ltd.
    Inventors: Kenji Inoue, Hiroyuki Takamura
  • Patent number: 7172982
    Abstract: An industrial fabric having improved sheet restraint and wear resistance along with acceptable permeability. The improvement is effected by coating only the high spots of the fabric with silicone material. The coating methods used in this invention may include kiss roll coating, gravure roll coating, rotogravure printing, rotary screen coating, screen-printing and/or flexography. The improvement is also applicable to corrugator fabrics.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: February 6, 2007
    Assignee: Albany International Corp.
    Inventors: Adam J. Jaglowski, Alan L. Billings
  • Patent number: 7166189
    Abstract: The roll properties of tissue sheets are improved either by imparting cross-machine direction dominant bar-like protrusions to the air side of the tissue by using specially woven transfer fabrics and/or by offsetting recurring surface features of the sheet relative to the surface features of adjacent sheets within the roll, such as by providing a throughdryer fabric with an offset seam. Both techniques provide the resulting tissue sheets with improved capabilities for providing an improved combination of roll bulk and roll firmness.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: January 23, 2007
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Mark Alan Burazin, Edward Joseph VanRengen, Kenneth Curtis Larson, Jerome Steven Veith, Ralph Lee Anderson, Michael William Veith
  • Patent number: 7118650
    Abstract: In a wet paper web transfer belt, the wet paper web side layer is formed by a high molecular weight elastic section containing porous bodies which are exposed at, or protrude from the web-contacting surface. The porous bodies are anchored in the resin and wear at about the same rate way as the surrounding resin. Therefore, the distribution of the porous bodies does not vary significantly as a result of abrasion. This transfer belt can transport an attached wet paper web, and release the web smoothly to a next stage in the papermaking process, over a long period of use.
    Type: Grant
    Filed: January 26, 2004
    Date of Patent: October 10, 2006
    Assignee: Ichikawa Co., Ltd.
    Inventor: Kenji Inoue
  • Patent number: 7090747
    Abstract: A papermaking belt which prevents cracking and inhibits crack growth which includes a reinforcing substrate embedded in a thermosetting polyurethane layer so that the reinforcing substrate and the thermosetting polyurethane layer are integrated with each other and the outer peripheral surface and the inner peripheral surface of the belt are formed by polyurethane layers, the polyurethane layer forming the outer peripheral surface being made of a composition containing a urethane prepolymer having isocyanate groups on its ends and a hardener containing dimethylthiotoluenediamine.
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: August 15, 2006
    Assignee: Yamauchi Corporation
    Inventors: Atsuo Watanabe, Takahisa Hikida, Atsushi Watanabe
  • Patent number: 7067042
    Abstract: The present invention relates to a twin wire former in a machine for the production of a fiber web, especially a paper or cardboard web from at least one fiber stock suspension, including a vertical twin wire segment having two wires running over a peripheral area of a turning element, especially a guide roll whose surface is preferably not equipped with suction and is smooth or substantially smooth; and in that at least one separation element, such as a transfer suction box is provided indirectly or immediately following the guide roll that separates the top wire from the bottom wire on which the fibrous web is supported.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: June 27, 2006
    Assignee: Voith Paper Patent GmbH
    Inventors: Johann Moser, Volker Schmidt-Rohr
  • Patent number: 7001486
    Abstract: 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: Grant
    Filed: December 19, 2002
    Date of Patent: February 21, 2006
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventor: Sheldon John Hilger
  • Patent number: 6994771
    Abstract: A method for treating a web of paper or board with a wetting substance or calendering the web prior to the cylinder dryer section of a paper- or boardmaking machine while the solids content of the web is still very low, typically in the range of 10–60%, wherein the web can be conveyed when so desired fully supported from the wire section of the paper- or boardmaking machine up to the winder, while simultaneously utilizing the quality benefits obtained from a controlled reduction of the web moisture content and dewatering of the same. The web is conveyed supported by a transfer belt (9) through at least one web surface treatment apparatus such as a coater station (S1B) or a calender prior to passing the web to the first dryer cylinder group (1) of the paper- or boardmaking machine. One nip (11, 13) supported by a transfer belt (9) is suitable for dewatering simultaneously with the application of a treatment substance to the web.
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: February 7, 2006
    Assignee: Metso Paper, Inc.
    Inventors: Hannu Korhonen, Rauno Rantanen
  • Patent number: 6942760
    Abstract: At the end of the twin wire zone of a paper machine former, a suction box (17) inside the upper wire loop (11) has a curved lid (17?) opposite a roll (18) within the lower wire loop (10). The lid is curved in a run situation so the tension of the upper wire (11) reduces the normal force between the wire (11) and the lid (17?) caused by the underpressure of the suction box. The underpressure keeps the web mainly off from the roll (18) and the lower wire (10) while being adhered to the underside of the upper wire (11) and conforming to the curved shape of the lids. Members (17a, 18?) are provided for making the web follow the lower wire (10) in a break situation for conducting it to the broke handling system.
    Type: Grant
    Filed: October 26, 2000
    Date of Patent: September 13, 2005
    Assignee: Metso Paper, Inc.
    Inventors: Pertti Heikkilä, Antti Poikolainen, Ari Puurtinen
  • Patent number: 6878238
    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: December 19, 2002
    Date of Patent: April 12, 2005
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Andrew Peter Bakken, Mark Alan Burazin, Jeffrey Dean Lindsay
  • Patent number: 6875315
    Abstract: One embodiment of the present invention is an endless non-woven tissue making fabric. The endless non-woven tissue making fabric has a machine direction, cross-machine direction, a tissue machine contacting surface, a tissue contacting surface, a first side edge, and a second side edge. The non-woven tissue making fabric comprises a fabric strip of non-woven material comprising at least one layer of non-woven material. The fabric strip has a first edge, an opposing second edge, a machine direction, and a cross-machine direction. The fabric strip may be spirally wound in a plurality of contiguous turns wherein the first edge in a turn of the fabric strip extends beyond the second edge of an adjacent turn of the fabric strip, thereby forming a spirally continuous seam with adjacent turns of the fabric strip.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: April 5, 2005
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Andrew Peter Bakken, Mark Alan Burazin, Jeffrey Dean Lindsay
  • Patent number: 6875309
    Abstract: The invention relates to a twin wire former (1) for producing a fibrous web (4), in particular a paper, cardboard or tissue web, from a fibrous suspension according to the generic terms of claim 1. The twin wire former (1) is characterized in that, the two wire belts (2, 3) run upwards after a passing a first deviation device (10), forming an angle (?) relative to an imaginary second horizontal plane (H2), in such a way that the upper vertex (15.SO) of the second deviation device (15) lies above the lower vertex (10.SU) of the first deviation device (10), and that the angle (?) relative to the imaginary first plane (H1) runs downwards.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: April 5, 2005
    Assignee: Voith Paper Patent GmbH
    Inventors: Alfred Bubik, Joachim Hennssler, Jürgen Prössl, Franz Stelzhammer
  • Patent number: 6863776
    Abstract: 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: Grant
    Filed: September 20, 2002
    Date of Patent: March 8, 2005
    Assignee: Voith Paper Patent GmbH
    Inventors: Ulrich Begemann, Ingolf Cedra, Thomas Augscheller, Georg Kleiser
  • Patent number: 6740203
    Abstract: A papermaker's fabric for use on a pulp thickening device and the like, having a body with edge portions on which are located guides with transition points between the body, and edge portions being reinforced with a coating that extends from the edge portions over the transition points onto the body.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: May 25, 2004
    Assignee: Albany International Corp.
    Inventor: Gregory D. Zilker
  • Patent number: 6730192
    Abstract: Printing paper or paperboard of 30-200 g/m2 grammage is made in a machine with a wet section, press section and drying section. The web passes through a roll press with a double-felted roll-press nip, then in a shoe press with an extended single or double-felted shoe-press nip, and pressed in a deflection-compensating roll press, having a double-felted roll-press nip and open press rolls. The web travels at at least 1,200 m/min.; is subjected in the roll-press nip to a linear load from 100 to 300 kN-m and a specific pressure from 5 to 15 MPa; and is subjected in the shoe-press nip to a linear load from 500 to 1,500 kN/m and a specific high pressure from 4 to 13 MPa, to obtain a dewatered web with a dry-solids content of at least 38 percent after the roll-press nip and at least 45 percent after the shoe-press nip.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: May 4, 2004
    Assignee: Metso Paper, Inc.
    Inventor: Jorma Laapotti
  • Patent number: 6712940
    Abstract: A papermachine belt particularly for use in a press and/or dryer section comprises a support fabric, a minimal nonwoven layer on the support fabric, a fusible thermoplastic layer, and a thicker batt over the thermoplastic layer. The whole structure is needled together, and the thermoplastic layer melted so that it is expressed through the overlying batt. The layer may be substituted by a nonwoven fabric containing composite yarns with thermoplastic sheaths or such yarns wound spirally around the belt. The support fabric may be substituted by a perforated composite membrane.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: March 30, 2004
    Assignee: Voith Fabrics Heidenheim GmbH & Co. KG
    Inventor: Robert L. Crook
  • Publication number: 20040045691
    Abstract: The present invention relates to a twin wire former in a machine for the production of a fiber web, especially a paper or cardboard web from at least one fiber stock suspension, including a vertical twin wire segment having two wires running over a peripheral area of a turning element, especially a guide roll whose surface is preferably not equipped with suction and is smooth or substantially smooth; and in that at least one separation element, such as a transfer suction box is provided indirectly or immediately following the guide roll that separates the top wire from the bottom wire on which the fibrous web is supported.
    Type: Application
    Filed: September 10, 2003
    Publication date: March 11, 2004
    Inventors: Johann Moser, Volker Schmidt-Rohr
  • Patent number: 6616814
    Abstract: The invention refers to a shoe press belt (1) for use in shoe presses of a paper machine, having a support (2) and a liquid-impermeable belt layer (3, 5) which has an inner layer (3) and an outer layer (5), the outer layer (5) having a porous structure and the porous structure being formed exclusively from cavities (8, 12, 14) open toward the outer side; and is characterized in that the outer layer (5) is made of an unfoamed material.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: September 9, 2003
    Assignee: Thomas Josef Heimbach Gesellschaft mit beschrankter Haftung & Co.
    Inventor: Walter Best
  • Patent number: 6605189
    Abstract: Suction box in a paper machine including a vacuum chamber, a deck or a number of substantially U-section holders open toward a wire and ribs arranged in the deck or the holders so that they can be loaded against the wire. At least in a running situation, the deck of the suction box is curved or the ribs are arranged to provide a curve run of the wire so that the wire tension of the curved run over the deck or ribs serves to lower a normal force which is produced by the vacuum present in the suction box and which is effective between the wire and the deck or ribs.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: August 12, 2003
    Assignee: Metso Paper, Inc.
    Inventors: Jorma Snellman, Antti Poikolainen, Ari Puurtinen, Samppa Salminen
  • Patent number: 6605188
    Abstract: Transfer belt for a paper machine, comprising a base structure (2) and a fiber batt layer (3) attached to the base structure and facing the fiber web. At least the fiber batt layer side of the belt is provided with a polymer matrix (4) impregnating the fiber batt layer (3). According to the idea of the invention, the transfer belt fiber batt layer comprises at least two fibers with different surface properties, the transfer belt surface facing the fiber web being thus provided with hydrophilic and, correspondingly, hydrophobic areas. The fibers in the fiber batt layer may differ from one another with regard to their polarity, hydrophilicity, electric charge, surface energy, friction properties, degree of fineness or porosity.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: August 12, 2003
    Assignee: Tamfelt Oyj ABP
    Inventors: Satu Hagfors, Olli Jermo