Wire Bottom Scrappers Or Deflectors Patents (Class 162/352)
  • Patent number: 10920373
    Abstract: A method of operating a machine for producing a fibrous web. The machine has a de-watering device with a plurality of pivotally embodied de-watering strips. In the method, an inclination angle of at least one of the de-watering strips is modified as a function of at least one parameter. The modification is effected by way of the pivoting installation which is activated by a control installation. The actual inclination angle of the at least one de-watering strip to be pivoted is detected and transmitted to the control installation. The control installation activates the pivoting installation as a function of the transmitted inclination angle.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: February 16, 2021
    Assignee: Voith Patent GmbH
    Inventors: Thomas Jaschinski, Robert Attwenger, Guilherme Custodio De Araujo
  • Patent number: 10604020
    Abstract: Devices and systems are provided to isolate and/or reduce vibration from a charging panel. A system for reducing vibration between a charging panel of an electric vehicle and the electric vehicle may include a charging panel, an armature coupled to the charging panel, and a floating section, wherein the armature is between the floating section and the charging panel.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: March 31, 2020
    Assignee: NIO USA, Inc.
    Inventor: Christopher P. Ricci
  • Patent number: 10519708
    Abstract: A method for making a physical access restriction compartment, such as a safe or a vault. The method includes assembling a wall structure of the compartment. The wall structure includes a plurality of channels. The method also entails mixing 80-90% polyethylene with 10-20% ceramic into a polyceramic amalgam prior to thermally processing the polyceramic amalgam at a predetermined temperature for a preset period of time. The processed polyceramic amalgam is shaped into a plurality of polyceramic rods, which are then inserted into the plurality of channels of the wall structure. The wall structure with the plurality of polyceramic rods is mounted into a housing. The predetermined temperature is within a range between 140-180 Deg C. and the preset period of time is between 2.5-3.5 hours.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: December 31, 2019
    Inventor: Miguel Alarcon
  • Patent number: 10273630
    Abstract: An apparatus for adjusting a scraper bar in a line for producing a paper web, having a wire, assigned to which are scraper bars oriented transversely to its direction of movement and situated at a distance from one another. The scraper bar is supported by a support bar and is adjustable with respect to the support bar and with respect to the wire by means of a positioning device. The scraper bar and the support bar are coupled together by way of links that are mounted thereon. The distance or the angular position of the scraper bar with respect to the support bar and thus with respect to the wire is adjustable by a displacement of the scraper bar with respect to the support bar.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: April 30, 2019
    Inventor: Klaus Bartelmuss
  • Patent number: 10246662
    Abstract: A composition for producing a tribological composite material includes at least one platelet-shaped solid-state lubricant, at least one type of inorganic, platelet-shaped pigment particles, at least one surface-active compound which possesses at least one hydrophilic group and at least one hydrophobic group, and a curable binder system comprising at least one organic polymer or oligomer having one or more functional groups, or a precursor thereof.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: April 2, 2019
    Assignee: Leibniz-Institut fuer Neue Materialien gemeinnuetzige GmbH
    Inventors: Carsten Becker-Willinger, Frank Hollmann, Christoph Kasper
  • Patent number: 10246825
    Abstract: A pneumatically actuated doctoring device for paper machine de-watering/paper forming is provided having a base member supported on a papermaking machine structure, and a blade support with a fabric contact element. A single pneumatic air tube having first and second attachments on opposing sides is also provided. The first attachment engages the base member and the second attachment engages the blade support. The tube is configured for connection to a pressurized air source and a vacuum source to extend or retract the blade support. A linkage arrangement is connected between the blade support and the base member and includes first and second links located between the base member and the support member. The links each have a pivotal connection to the base member and provide for a fixed orientation of the blade support relative to the base member as the pneumatic air tube extends or retracts the blade support.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: April 2, 2019
    Assignee: Andritz Inc.
    Inventors: David Cohen, Stephen Lamoureux
  • Patent number: 10132034
    Abstract: The invention relates to a suction device (15) for use in a papermaking machine and being suitable for acting on a wet fibrous web through a permeable fabric (4, 6), e.g. a through-air-drying (TAD)-fabric. The suction device has a fabric-facing surface (18) formed by a plurality of end surfaces of solid elements (21, 22). Channels (24, 25) are defined between the solid elements. The end surface of the final solid element (22) does not lie in the same plane as the end surfaces of the previous solid elements (21). Thereby, a gap A is formed between the fabric (4, 6) and the final solid element (22). This allows air to flow through the gap and into a final channel (25). The air flow will then catch fines, small fibers and water droplets and draw them into the final channel (25) thereby counteracting a build-up of large lumps of fines and fibers.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: November 20, 2018
    Assignee: Valmet Aktiebolag
    Inventors: Michael Bjerke, Dennis Jewitt, Mattias Johansson
  • Patent number: 9834887
    Abstract: An adjustable foil apparatus for use with a paper making machine includes an elongated upper assembly having a forming element positionable relative to a forming fabric of a paper making machine and an elongated base mountable to a paper making machine. The upper assembly being coupled to the base and movable relative thereto for adjusting an overall height of the foil apparatus, the forming element being configured for selective movement toward and away from the forming fabric of a paper making machine. The adjustable foil apparatus including an adjustment mechanism fixed to the base, the adjustment mechanism including a slide bar movable relative to the base along an axis of the base and configured to move the forming element relative to the base and toward and away from the forming fabric.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: December 5, 2017
    Assignee: COLDWATER SEALS, INC.
    Inventors: James D. White, Karl Lemme
  • Patent number: 8974639
    Abstract: Improved height and angle adjustment mechanisms and methods for producing paper includes a plurality of height and angle adjustment mechanisms arranged in the forming or wet section of a Fourdrinier. Glide shoes and cam-blocks having sloped grooves are arranged to be driven within a recess of an upper pultrusion assembly to change the angle or height of a particular foil blade. Actuators extend or withdraw a connecting rod, coupled to the cam-blocks, to influence heights and angles of various foils blades.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: March 10, 2015
    Assignee: IBS of America
    Inventors: Alex Gauss, Hermann M. Vogl, Joshua N. Kruger, Michael Boehmer, Andrew S. Forester, James F. Faufau
  • Patent number: 8261434
    Abstract: A device for releasably fastening a wire foil to a supporting strip in an installation for producing paper. The installation has a wire and wire foils that extend transversely with respect to the movement direction of the wire. The foils are situated at a spacing from one another in the movement direction of the wire and come into contact with the wire. Supporting strips for the wire foils are assigned to the wire foils and likewise extend transversely with respect to the movement direction of the wire. The wire foils or the supporting strips which are assigned to them are configured in their longitudinal direction with an undercut groove, and the supporting strips or the wire foils are configured with a spring which corresponds to the cross section of the undercut groove.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: September 11, 2012
    Inventors: Klaus Bartelmuss, Heinz Bartelmuss
  • Patent number: 8163136
    Abstract: The present invention is directed to an apparatus used in the formation of paper. More specifically the present invention is directed to an apparatus, system, and method for lowering the consistency or degree of density of fiber suspension on the forming table, and improving the quality and physical properties of the paper formed thereon.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: April 24, 2012
    Assignee: FC Papel LLC
    Inventor: Luis Fernando Cabrera y Lopez Caram
  • Patent number: 8152969
    Abstract: A hydrofoil for a paper production installation has a side that faces the wire formed with a wear strip. The wear strip is formed with plates that are organized in layer and formed of ceramic material. The wear strip is formed by a plurality of layers which lie on one another, each of thin plates which are situated next to one another. The layers of ceramic material are connected to one another by adhesive layers.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: April 10, 2012
    Inventors: Klaus Bartelmuss, Heinz Bartelmuss
  • Patent number: 8132527
    Abstract: An electrode mixture paste (5) is applied on both sides of a strip of core material (1) as it runs along its lengthwise direction, and the coating thickness of the paste (5) is adjusted as the core material (1) coated with the paste (5) passes through a gap between a pair of scraper tools (16a, 16b). Tips (18) provided to the scraper tools (16a, 16b) scrape off the paste (5) to form a paste-coated portion of a predetermined width. The electrode mixture paste (5) scraped off with the tips (18) is returned through recesses (19) on the upstream side of the tips (18) in the running direction of the core material, so as to prevent the phenomenon where the coating thickness is increased at both side edges of the paste-coated portion. Thus, a method for applying electrode mixture paste is realized that can prevent the phenomenon where the coating thickness is increased at both side edges of the paste-coated portion and prevent process failures such as deformation of paste-coated sheet.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: March 13, 2012
    Assignee: Panasonic Corporation
    Inventors: Kimihiro Imamura, Hiroyuki Usui, Tadakazu Seto
  • Patent number: 8097122
    Abstract: Segments, typically ceramic, for use in dewatering blades for papermaking and similar machines comprise lower surfaces to each of which at least one interlock member is bonded. The segments are installed by inserting the interlock members into a channel in an intermediate sub-assembly or base member. The members are securely attached within the channel by a suitable adhesive, or clip means to engage the interlock members, with the optional addition of an adhesive. The segments and dewatering blades, and a method of manufacture, allows for the segments to be made as flat units, without unnecessary angular surfaces, simplifies their attachment to the base, and reduces the occurrence of stress cracking or other damage to the segments. A single segment can be used in various dewatering blade types and in more than one orientation in dewatering blades, reducing manufacturing costs by unitizing construction.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: January 17, 2012
    Assignee: AstenJohnson, Inc.
    Inventor: Douglas R. McPherson
  • Patent number: 8070915
    Abstract: A static dewatering element (10) for a web forming machine has a thermally sprayed coating (26) manufactured of powder particles (34). The powder particles (34) are agglomerates composed of primary particles (36). The average size of the primary particles (36) is smaller than 0.5 ?m. The invention also relates to a method for covering a static dewatering element designed for a web forming machine.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: December 6, 2011
    Assignee: Metso Paper, Inc.
    Inventors: Antti Ahmaniemi, Veli-Pekka Tarkiainen
  • Patent number: 8048269
    Abstract: A forming section has a lower wire loop (11), which constitutes a single-wire section (T) following a breast roll (12). A first dewatering zone (Z1) has at least one stationary, first forming shoe (40) followed by a pulsating strip cover (50). The first forming shoe has leading and trailing edges and underpressure affecting through holes of the cover. The holes are openings or slots substantially in the longitudinal direction of the machine, whereby non-pulsating dewatering is applied on the stock travelling on top of the lower wire. A pulp suspension jet is fed from a headbox (30) at an impact point after the shoe leading edge. The cover is straight at least in the area between the impact point of the pulp suspension jet and the trailing edge. The impact of the pulp suspension jet on the forming wire is thus better controlled in a better way, increasing production speed.
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: November 1, 2011
    Assignee: Metso Paper, Inc.
    Inventors: Antti Poikolainen, Janne Laakso, Janne Lappi
  • Patent number: 7993492
    Abstract: The invention relates to an apparatus used in the formation of paper. More specifically the present invention is directed to an apparatus for maintaining the hydrodynamic processes involved in the formation of a fiber mat or paper sheet. The performance of this apparatus is not affected by the velocity of the paper machine, the basis weight of the paper sheet and or the thickness of the mat being formed.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: August 9, 2011
    Assignee: FC Papel LLC
    Inventor: Luis Fernando Cabrera Y Lopez Caram
  • Patent number: 7931777
    Abstract: A multi-layer web formation section has two successive wire units (300, 310) with a common wire (11). A first headbox (100) supplies fiber pulp to the first wire unit (300) forming a first partial web (W1). A second headbox (110) supplies a new fiber pulp layer to the forward end of the second wire unit (310) atop the first partial web. A first non-pulsating dewatering zone (Z1b) in the forward end of a two-wire stretch of the second wire unit (310) has a first formation shoe (200b) with a curved cap (201) placed on the side of the new layer having openings (202) extending through the cap (201) with an under-pressure (P) affecting therethrough. A two-wire stretch of the second wire unit (310) has a second pulsating dewatering zone (Z2b) formed by fixed dewatering lists (210b), between which there are gaps (220b) and an under-pressure (Pb) affecting in these.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: April 26, 2011
    Assignee: Metso Paper, Inc.
    Inventors: Kari Räisänen, Antti Poikolainen
  • Patent number: 7846300
    Abstract: This invention relates to a rail for the compliant supporting of a mesh in the region of a double mesh zone of a double mesh section of a machine for producing a fibrous web, including a movable head rail, a movable bearer rail, a fixed guide rail, a compliant pressing apparatus, and a compliant return apparatus for moving the movable bearer rail together with the movable head rail from the operating position to the resting position and for holding the two rails in the resting position. The compliant return apparatus has, spread over the length of the movable bearer rail, several movable return hoops which at the one end can be made to engage at least temporarily with the movable bearer rail and at the other end can be loaded at least temporarily by at least one return element respectively arranged between the fixed guide rail and the movable return hoop.
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: December 7, 2010
    Assignee: Voith Patent GmbH
    Inventors: Helmut Faix, Peter Martin
  • Patent number: 7833386
    Abstract: This invention relates to a method for producing a fibrous web from at least one fibrous suspension in a twin mesh former with a twin mesh zone which has a wedge-shaped intake nip and is formed at least in some sections by two rotating endless meshes, of which the first mesh, which is passed over a preferably positionable inlet roller, is passed in the double mesh zone over several rails rigidly arranged a distance from each other on a preferably movable dewatering box, and of which the second mesh is passed in the twin mesh zone over several rails which are arranged opposite the rails of the preferably movable dewatering box, are supported by way of compliant elements and are pressed with a selectable force against the second mesh.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: November 16, 2010
    Assignee: Voith Patent GmbH
    Inventor: Johann Moser
  • Patent number: 7799174
    Abstract: A foil for paper production systems has a carrier strip and mutually adjoining plates of ceramic material. The plates are fixed to the carrier strip by way of a plurality of clips, whose free ends are latched to the plates. On their side facing the carrier strip, the plates of a ceramic material are formed with strips projecting from the latter and extending in the longitudinal direction of the carrier strip, which are formed with undercuts along their side edges, the free ends of the clips, which are oriented toward one another, projecting into the lateral undercuts of the strips projecting from the plates.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: September 21, 2010
    Inventors: Klaus Bartelmuss, Heinz Bartelmuss
  • Patent number: 7776183
    Abstract: A forming section for a gap blade former type papermaking machine having a headbox which delivers a jet of papermaking stock between a conveying forming fabric and a backing forming fabric is provided. The conveying fabric moves in sliding contact over an impingement shoe on which the jet of papermaking stock is delivered at a point of impingement. A forming shoe located immediately downstream of the impingement shoe over which the backing forming fabric slides. The impingement shoe is mounted for at least one of pivoting and transverse movement so that a position of the point of impingement of the jet of papermaking stock can be adjusted by at least one of rotating the impingement shoe about a first pivot point and transversely shifting the impingement shoe. The forming shoe can also be mounted for movement.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: August 17, 2010
    Assignee: AstenJohnson, Inc.
    Inventors: Vaughn Wildfong, Thomas Helbig
  • Patent number: 7550062
    Abstract: The temperature of the ceramic elements of a supporting or wiping strip that is assigned to a wire or a felt in a paper production facility, is controlled by guiding a cooling carrier medium or a heating carrier medium through the supporting or wiping strip. For that purpose, the supporting or wiping strip is formed with at least one channel, through which the carrier medium for heat or for cold is pumped.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: June 23, 2009
    Inventors: Klaus Bartelmuss, Heinz Bartelmuss
  • Patent number: 7540943
    Abstract: A cover for a vacuum dewatering box that is formed from a plurality of blocks, each including a wear surface, is provided. At least some of the blocks are spaced apart to form at least one generally longitudinally oriented slot through the cover, with a shape and size of the at least one slot being determined by at least one of a location of and a shape of the blocks. Preferably, the at least one slot is formed with a zig-zag or herringbone pattern, and can be used on a suction box or Uhle box on a papermaking machine. A vacuum dewatering box having this type of cover is also provided.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: June 2, 2009
    Assignee: AstenJohnson, Inc.
    Inventor: Douglas R. McPherson
  • Patent number: 7524401
    Abstract: A twin fabric hybrid forming section for paper making machine is described in which: the pitch of the fabric support elements decreases progressively in the machine direction; the level of vacuum applied to the forming fabrics through the dewatering boxes increases in the machine direction; the two forming fabrics together with the stock sandwiched between them traverse at least four separate and distinct vacuum zones within the forming section as they proceed in the machine direction; the level of vacuum applied to the last of the at least four separate and distinct vacuum zones is higher than the level of vacuum applied to the first of the separate and distinct vacuum zones; the level of vacuum applied to the at least four separate and distinct vacuum zones follows a preselected profile; and the dewatering boxes carrying the fabric support elements are arranged so that the fabric support elements are located in an alternating sequence on the machine sides of both of the forming fabrics.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: April 28, 2009
    Assignee: AstenJohnson, Inc.
    Inventors: Vaughn Wildfong, Richard Pitt, Thomas Helbig
  • Patent number: 7524402
    Abstract: A twin fabric gap former forming section for paper making machine is described in which: the pitch of the fabric support elements d decreases progressively in the machine direction; the level of vacuum applied to the forming fabrics through the dewatering boxes increases in the machine direction; the two forming fabrics together with the stock sandwiched between them traverse at least four separate and distinct vacuum zones within the forming section as they proceed in the machine direction; the level of vacuum applied to the last of the at least four separate and distinct vacuum zones is higher than the level of vacuum applied to the first of the separate and distinct vacuum zones; the level of vacuum applied to the at least four separate and distinct vacuum zones follows a preselected profile; and the dewatering boxes carrying the fabric support elements are arranged so that the fabric support elements are located in an alternating sequence on the machine sides of both of the forming fabrics.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: April 28, 2009
    Assignee: AstenJohnson, Inc.
    Inventors: Vaughn Wildfong, Richard Pitt
  • Patent number: 7513976
    Abstract: A material for dewatering elements at the wet end of a paper-making machine is disclosed. The material comprises an elastomeric polymer matrix, and a filler added to the matrix at a level of 10 to 50 percent by weight, and the material has a hardness according to Shore A between 60 and 85. The invention also relates to a dewatering element comprising such material, and to the use of such material for the preparation of a dewatering element.
    Type: Grant
    Filed: November 17, 2004
    Date of Patent: April 7, 2009
    Assignee: BTG Eclepens, S.A.
    Inventors: Silvano Freti, Lothar Burchardt, Günter Bellmann
  • Patent number: 7491295
    Abstract: A forming section of a paper or board machine 10 in the forming section of a paper or board machine has a cover 36 having an outlet groove 20 between a suction zone 18 of circular holes and an outlet edge 40. A wire comes to the cover area from an inlet edge 38 and leaves from an outlet edge 40. The outlet groove 20 is essentially in the cross-machine direction of the cover 36. The suction zone accomplishes non-pulsating dewatering, and the outlet groove accomplishes pulsating dewatering. The non-pulsating suction zone first accomplishes good retention, and after this formation is improved on the outlet groove. When pulsating dewatering takes place in the same direction as non-pulsating dewatering and immediately after non-pulsating dewatering, the web formed has a particularly good formation potential. Potential marking caused by non-pulsating dewatering can also be removed efficiently by means of pulsating dewatering taking place on the same side.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: February 17, 2009
    Assignee: Metso Paper, Inc.
    Inventors: Antti Poikolainen, Marko J. Moilanen, Kari Lamminmäki
  • Patent number: 7396437
    Abstract: Method and system for controlling web formation in the forming section of a paper machine includes measuring the amount of white water occurring during drainage in at least one drainage region of the forming section; and carrying out the web formation control on the basis of the white water measurement.
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: July 8, 2008
    Assignee: Voith Paper Patent GmbH
    Inventors: Raymond P. Shead, Johann Moser
  • Patent number: 7387709
    Abstract: A hydrofoil for a papermaking installation has a supporting bar and plates of a ceramic material. Either the supporting bar or each ceramic plate fixed to the latter is formed on the mutually facing sides with at least one undercut groove extending in the direction of the supporting bar over the length of the plate, and the respective other part is formed with at least one retaining strip formed approximately oppositely to the undercut groove and extending in the direction of the supporting bar. The at least one retaining strip can be clamped in the at least one groove.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: June 17, 2008
    Inventors: Klaus Bartelmuss, Heinz Bartelmuss
  • Publication number: 20080135197
    Abstract: This invention relates to a method for producing a fibrous web from at least one fibrous suspension in a twin mesh former with a twin mesh zone which has a wedge-shaped intake nip and is formed at least in some sections by two rotating endless meshes, of which the first mesh, which is passed over a preferably positionable inlet roller, is passed in the double mesh zone over several rails rigidly arranged a distance from each other on a preferably movable dewatering box, and of which the second mesh is passed in the twin mesh zone over several rails which are arranged opposite the rails of the preferably movable dewatering box, are supported by way of compliant elements and are pressed with a selectable force against the second mesh.
    Type: Application
    Filed: February 12, 2008
    Publication date: June 12, 2008
    Inventor: Johann Moser
  • Patent number: 7364643
    Abstract: Fibrous stock is supplied by a paper or board machine headbox (1) between looped forming wires (11, 12). Water is removed in a first dewatering zone (Z1) formed with a fixed forming shoe (3) having a curved surface against which a wire (12) is supported while the opposite wire (11) is unsupported in the area of the shoe (3). Water is removed in a second dewatering zone (Z2) formed by fixed dewatering blades (21) on the other side of the wires (11, 12) and supported against the stock therebetween (21) and on the opposite side of the wires (11, 12) by dewatering blades (24), loaded in a controlled manner against the fixed dewatering blades (21) at gaps (22) between these so that pulsating dewatering is caused in the second zone (Z2). The wires (11, 12) are guided so the shoe (3) causes essentially non-pulsating dewatering in the stock.
    Type: Grant
    Filed: June 16, 2003
    Date of Patent: April 29, 2008
    Assignee: Metso Paper, Inc.
    Inventors: Antti Poikolainen, Jeffrey C. Irwin, Michael Odell, Hannu Korhonen, Ari Puurtinen, Sami Anttilainen
  • Publication number: 20080087398
    Abstract: A hydrofoil for a paper production installation has a side that faces the wire formed with a wear strip. The wear strip is formed with plates that are organized in layer and formed of ceramic material. The wear strip is formed by a plurality of layers which lie on one another, each of thin plates which are situated next to one another. The layers of ceramic material are connected to one another by adhesive layers.
    Type: Application
    Filed: September 26, 2007
    Publication date: April 17, 2008
    Inventors: Klaus Bartelmuss, Heinz Bartelmuss
  • Patent number: 7291248
    Abstract: A dewatering member for a paper or board machine has a composite body (13) and a hard surface layer (12). The composite body (13) is manufactured in a pultrusion process. An adhesion layer (11) is formed on desired outer surfaces of the composite body (13) such that reinforcements passed to the adhesion layer (11) have been passed to the pultrusion process through a separate resin bath, to which an adhesion improving agent has been added such that the hard surface layer (12) can be applied directly onto it, and reinforcements forming the inner portion of the composite body (13) have been passed to the pultrusion process through a second resin bath. The composite body (13) is coated with a hard coating layer (12) produced by thermal spraying, and the coating (12) is ground.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: November 6, 2007
    Assignees: Exel Oyj, Metso Paper, Inc.
    Inventors: Veli-Pekka Tarkiainen, Liisa Muilu, Kirsi Kervinen, Petri Sorsa
  • Publication number: 20070240840
    Abstract: The temperature of the ceramic elements of a supporting or wiping strip that is assigned to a wire or a felt in a paper production facility, is controlled by guiding a cooling carrier medium or a heating carrier medium through the supporting or wiping strip. For that purpose, the supporting or wiping strip is formed with at least one channel, through which the carrier medium for heat or for cold is pumped.
    Type: Application
    Filed: April 13, 2007
    Publication date: October 18, 2007
    Inventors: Klaus Bartelmuss, Heinz Bartelmuss
  • Patent number: 7198697
    Abstract: A supporting and wiping device is assigned to the machine wire in a paper-making system. The supporting and wiping device has supporting and wiping strips firmly held on a carrying frame or the like and extending transversely with respect to a direction of movement of the machine wire. The carrying frame has two carrying beams aligned parallel to the supporting and wiping strips and two-part transverse webs arranged between said beams and capable of being fixed to the latter, on the one hand the transverse webs and on the other hand the supporting and wiping strips being formed with mutually associated recesses and projections, by way of which the transverse webs and the supporting and wiping strips can be connected to one another and clamped by displacing the two parts of the transverse webs with respect to each other.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: April 3, 2007
    Inventors: Klaus Bartelmuss, Heinz Bartelmuss
  • Patent number: 7175744
    Abstract: An apparatus for the treatment of, in particular for vacuum action upon, the at least one wire or at least one felt band in a papermaking plant. The wire or felt band is moved in circulation by the apparatus, which, if appropriate, is connected to a vacuum source. The apparatus has a carrying device assigned to the wire or felt band and a multiplicity of supporting elements are disposed at a distance from one another.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: February 13, 2007
    Inventors: Klaus Bartelmuss, Heinz Bartelmuss
  • Patent number: 7169264
    Abstract: A wire foil for a paper production installation has a supporting strip and plates fixed to the latter. The plates are mutually adjoining ceramic plates. The supporting strip and the plates of ceramic material are formed, on the mutually contacting surfaces, with mutually facing recesses, in which connecting elements are anchored. The connecting elements are fixed in the recesses in the plates of ceramic material by a form fit, and plates located beside one another are fixed to the supporting strip by at least one common connecting element extending over the joint.
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: January 30, 2007
    Inventor: Klaus Bartelmuss
  • Patent number: 7150808
    Abstract: An apparatus for forming a paper or cardboard web from a fibrous suspension, said apparatus having a twin wire section consisting of a first wire loop formed by a first wire, a second wire loop formed by a second wire and at least one headbox, from which headbox the fibrous suspension can be fed into the space between the wire loops, said first wire loop being provided with a dewatering box placed above the wire and arranged to drain water from the fibrous suspension between the wire loops via the bottom of the dewatering box and through the first wire, said apparatus having two successive dewatering zones provided in the area of the dewatering box, where the direction of web movement in the area of the first dewatering zone is away from the dewatering box and the runs of each wire loop are substantially straight while in the area of the second dewatering zone the direction of web movement is towards the dewatering box and water drainage from the fibrous suspension is arranged to take place substantially in a
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: December 19, 2006
    Assignee: Vaahto Oy
    Inventor: Ismo Lehmus
  • Patent number: 7141143
    Abstract: The invention relates to a method of draining a fiber pulp suspension, where the fiber pulp suspension is applied to a convergent dewatering space arranged between two wires travelling in the same direction. In the dewatering space, water and powdery substance are removed from the fiber pulp suspension through the wires. Pressure pulses are generated in the fiber pulp suspension along the length of the dewatering space with pressure pulse elements that are on opposite sides of the wires relative to the fiber pulp suspension and in contact with or at a distance from the wires. The invention also relates to an apparatus according to the method.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: November 28, 2006
    Assignee: Metso Paper, Inc.
    Inventor: Vesa Juutinen
  • Patent number: 7008511
    Abstract: A wire section in a machine for the production of a fiber web including at least one twin wire former including a revolving continuous inner wire and a revolving continuous outer wire that converge in the area of a forming roll. After the forming roll, viewed in the direction of web travel, and inside the loop of the inner wire and inside the loop of the outer wire at least one additional strip element is located.
    Type: Grant
    Filed: December 11, 2002
    Date of Patent: March 7, 2006
    Assignee: Voith Paper Patent GmbH
    Inventors: Christoph Haase, Guenter Halmschlager, Martin Vogt
  • Patent number: 7005039
    Abstract: A device for adjusting the position of the wiper strip on the screen in a papermaking plant regulates the contact pressure with which the wiper strip bears on the screen. The wiper strip is fixed to a supporting bar and the supporting bar is configured such that it can be moved with respect to the screen counter to the action of a spring device, in particular an air spring, in order to adjust its position with respect to the screen. A plurality of holding bars are provided along the supporting bar, that can be adjusted in terms of their effective thickness in relation to pressing the wiper strip against the screen.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: February 28, 2006
    Inventors: Klaus Bartelmuss, Heinz Bartelmuss
  • Patent number: 7005040
    Abstract: A fabric support element for a papermaking machine has improved fluid drainage means, comprising openings which can include flow-through vents. The element can comprise an impingement shoe for a forming section of a papermaking machine. The openings can be defined by a plurality of laminar segments, at least some of which define a paper side surface of the element, and which segments can be spaced apart by additional laminar segments or other spacing means. Laminar segments for use in the element, a method of constructing the element, and a papermaking machine, or a forming section thereof, including the element are also provided.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: February 28, 2006
    Assignee: AstenJohnson, Inc.
    Inventors: John G. Buchanan, Richard E. Pitt, Roy Van Essen, Karl Lemme, Vaughn Wildfong
  • Patent number: 6984291
    Abstract: A process, and an apparatus, for improving sheet properties in a twin fabric paper making machine forming section whereby pressure pulse generation in the stock can be controlled. The pressure pulses are controlled by mounting a vacuum assisted skimmer blade (15) supported by an adjustable resilient support means (18) so that its height can be altered, and so that it can respond to transient changes in the stock layer thickness. The resilient and adjustable support means (18) itself is supported by a vacuum drainage box (10), which serves to capture at least the major proportion of the fluid skimmed of by the skimmer blade (15). This apparatus the position of the skimmer blade (15) to be altered in two ways without stopping the paper making machine. The skimmer blade (15) can be located either so that it is out of contact with the forming fabric (3), or so that it can be in contact with the forming fabric.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: January 10, 2006
    Assignee: AstenJohnson, Inc.
    Inventor: Richard E. Pitt
  • Patent number: 6982025
    Abstract: An adjustable resilient blade support for use in the forming section of a papermaking machine. The blade support is adjustable, both to allow the attached blade to be moved from a position where it is out of contact to a position where it is pressed into contact with the adjacent forming fabric, and to permit adjustment of the blade orientation relative to the surface of the forming fabric. The blade support is also resilient, and thus allows the blade to respond to transient localized changes in the path of the forming fabric with which it is in contact. The adjustable resilient blade support of this invention is thus of use in an open surface forming section, and also is of use in forming sections in which two forming fabrics are used.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: January 3, 2006
    Assignee: AstenJohnson, Inc.
    Inventor: Richard E. Pitt
  • Patent number: 6884322
    Abstract: A system for making a paper web has at least one endless wire which is moved over load bearing and guide rolls. A pulp supply apparatus applies pulp to the wire. Suction devices and ceramic scrapers are arranged along the wire. There may also be present devices for the application, controlled by valves, of a coolant, in particular water, to the wire and the scrapers. At least some of the scrapers are constructed with at least one temperature sensor, whose output is connected to a display device or to a control unit.
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: April 26, 2005
    Inventors: Klaus Bartelmuss, Heinz Bartelmuss
  • Patent number: 6881302
    Abstract: A paper former comprises two wires which converge for defining a paper production gap and a plurality of dewatering blades arranged in the paper production gap in a paper producing direction and brought into sliding contact with one of the two wires so that a stock is dehydrated while being conveyed in a state put in the paper production gap. Each of the plurality of dewatering blades is shaped into a convexly curved surface configuration bent along a traveling direction of the wires and equipped with a wire sliding contact surface brought into sliding contact with said wire for guiding the traveling of said wire, and grooves are made in said wire sliding contact surfaces as a moisture run-off opening for running off moisture developing through the dewatering from the wire side. This paper former thus constructed can suppress the occurrence of paper defects stemming from the landing of a material jet or paper defects stemming from the dewatering property, thus improving the paper quality.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: April 19, 2005
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Kazuhiko Masuda, Hiroshi Iwata, Masanobu Matsumoto, Keiichi Fujiki
  • Patent number: 6875313
    Abstract: An apparatus for a paper-making installation with at least one wire supports the wire wipes off the water emerging from the paper pulp or paper web on the wire and passing through the wire. The apparatus is formed with a plurality of supporting and wiping elements of ceramic material located at intervals from one another in the direction of movement of the wire. The upper surfaces of the elements come into contact with the wire. A large number of supporting and wiping elements is provided, and they are located in a plurality of rows that extend over the width of the wire. Each row has a plurality of elements.
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: April 5, 2005
    Inventors: Klaus Bartelmuss, Heinz Bartelmuss
  • Patent number: RE40720
    Abstract: A fabric support element for a papermaking machine has improved fluid drainage means, comprising openings which can include flow-through vents. The element can comprise an impingement shoe for a forming section of a papermaking machine. The opening can be defined by a plurality of laminar segments, at least some of which define a paper side surface of the element, and which segments can be spaced apart by additional laminar segments or other spacing means. Laminar segments for use in the element, a method of constructing the element, and a papermaking machine, or a forming section thereof, including the element are also provided.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: June 9, 2009
    Assignee: AstenJohnson, Inc.
    Inventors: John G. Buchanan, Richard E. Pitt, Roy Van Essen, Karl Lemme, Vaughn Wildfong
  • Patent number: RE43679
    Abstract: A process, and an apparatus, for improving sheet properties in the initial impingement zone of a paper making machine including a forming section, a forming fabric moving in the machine direction and a head box having a head box slice which delivers a stock jet onto the moving forming fabric. The scale and intensity of agitation within the stock is adjusted by adjusting some of the support elements beneath the forming fabric adjacent the head box slice so that they either contact, or do not contact, the machine side surface of the forming fabric and observing the effect, if any, that the adjustment has on the quality of the sheet product being made on the paper making machine. This technique is of use in a papermaking machine forming section having a single open surface forming fabric, in the initial open surface section of a so-called hybrid gap former having two superposed forming fabrics, and in the forming section of a two fabric papermaking machine.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: September 25, 2012
    Assignee: AstenJohnson, Inc.
    Inventors: Roy Van Essen, Mark Landry, Richard Pitt