Lead Strip Forming And/or Guiding Patents (Class 162/193)
  • Patent number: 10626556
    Abstract: An air guide box of a paper production installation has a front broad side and a rear broad side, each having a width b. An extension device is attachable to a broad side of the air box guide and has a width of at least 0.25*b and a length of at least 10 mm. A surface thereof is defined with at least one recess having a maximum clear opening of at least 0.1 mm for the through passage of at least one high-pressure water jet or at least one laser beam.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: April 21, 2020
    Assignee: PAPRIMA INDUSTRIES INC.
    Inventor: Roman Caspar
  • Patent number: 10214005
    Abstract: Apparatus (1) for changing a blade of a rotary die cutter, particularly for flexographic printing machines: a magnetic cylinder (3) configured to receive and support a die-cutting blade (5, 5?); a station (7) for inserting the blade (5, 5?) has a retention device (70) configured to retain the blade (5) in the insertion station; a guiding device (71) guides the blade (5, 5?) toward the magnetic cylinder (3); a station (9) for extracting the blade (5, 5?), has an extraction device (90) configured to remove the blade (5, 5?) from the magnetic cylinder (3).
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: February 26, 2019
    Assignee: BOBST FIRENZE S.R.L.
    Inventors: Ugo Bagnoli, Federico D'Annunzio, Giacomo MacCalli, Mauro MacCalli
  • Patent number: 9670616
    Abstract: Described herein are methods and systems for reducing, preventing, or eliminating wrinkles in a paper sheet during papermaking. The systems may include a dryer configured to dry a continuous paper sheet having a travel direction. The system may also include at least one roll configured to receive the dried continuous paper sheet. The systems may also include an air spreader located downstream of the dryer and upstream of the at least one roll. The at least one roll may include one or more calendering rolls. The air spreader may include a plurality of nozzles configured to expel a gas toward the dried sheet. The nozzles may be oriented in a direction at least partially opposed to the travel direction of the dried sheet.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: June 6, 2017
    Assignee: Georgia-Pacific Consumer Products LP
    Inventors: David Drew Raines, Kenneth C. Henderson, Anthony C. Jelks
  • Publication number: 20150122441
    Abstract: The disclosure relates to a method for trimming unwanted edges from a moving paper web. The disclosure also relates to the trimming of unwanted edges while the web is traveling on a structured papermaking fabric. The method uses a water nozzle having a diameter of 0.02? or less. The method also includes the removal of the unwanted edge trimmings to a trim chute through the use of moving air, for example, an air knife. The disclosure also relates to an edge trimming apparatus.
    Type: Application
    Filed: January 12, 2015
    Publication date: May 7, 2015
    Inventors: David Drew Raines, Farminder S. Anand, Theodore D. Kennedy, David S. Veldhuizen, Mark S. Hunter, Dean J. Baumgartner
  • Patent number: 8628641
    Abstract: A web turn-up cutting method and apparatus for severing a continuous web that is traveling in a travel direction. The apparatus comprising a first water nozzle and a second water nozzle that are mountable on respective nozzle carriages and transversely movable. The apparatus further comprising a water jet controller adapted to activate a water supply of the first and second water nozzles and a carriage controller adapted to actuate the nozzle carriages to provide a transversal movement of the first and second water nozzles. The first and second nozzles being adapted to define together a substantially X-shaped cut on the traveling continuous web. The substantially X-shaped cut defining at least a substantially V-shaped tail for ending a forming roll, an opposite substantially V-shaped start for starting a new spool, a detachable first wing and a detachable second wing. A method of manufacturing paper in a papermaking machine.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: January 14, 2014
    Assignee: Paprima Industries Inc.
    Inventor: Dieter H Hilker
  • Patent number: 8603296
    Abstract: A method of making a fabric-creped absorbent cellulosic sheet with improved dispensing characteristics. The method includes compactively dewatering a papermaking furnish to form a nascent web, applying the nascent web to a translating transfer surface, fabric-creping the web from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a patterned creping fabric, the fabric-creping step occurring under pressure in a fabric creping nip defined between the transfer surface and the creping fabric, wherein the fabric is traveling at a fabric speed that is slower than the speed of the transfer surface, the web being creped from the transfer surface and transferred to the creping fabric, adhering the web to a drying cylinder with a resinous adhesive coating composition, drying the web on the drying cylinder to form a dried web, and peeling the dried web from the drying cylinder.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: December 10, 2013
    Assignee: Georgia-Pacific Consumer Products LP
    Inventors: Steven L. Edwards, Guy H. Super, Stephen J. McCullough, Ronald R. Reeb, Hung Liang Chou, Kang Chang Yeh, John H. Dwiggins, Frank D. Harper
  • Patent number: 8440054
    Abstract: A calender (1) for calendering a paper web (2), in particular made from paper suitable for gravure printing, having at least one roll stack which in each case has an upper and a lower end roll (4.1, 4.2) and intermediate rolls (5.1, 5.2, 5.3, 5.4), one of the two end rolls (4.1) delimits a first working nip (3) of the roll stack depending on the guidance of the paper web (2), and the rolls (4.1, 4.2, 5.1, 5.2, 5.3, 5.4) are hard rolls (4.1, 5.2, 5.4) and soft rolls (5.1, 5.3, 4.2) in order to form loadable working nips in the form of soft nips, the end roll (4.1) which delimits the first working nip (3) being a hard, heated roll, the diameter of which is greater than that of a hard, heated intermediate roll (5.2, 5.4) and the outer wall (9) of which forms one of two contact faces (9, 10) of a web treatment nip (8) which is arranged upstream of the first working nip (3), and the other contact face (10) being formed by a belt (14) which circulates on guide rolls (11, 12, 13).
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: May 14, 2013
    Assignee: Andritz Kusters GmbH
    Inventors: Peter Svenka, Bernhard Brendel, Eduard Davydenko
  • Patent number: 8397539
    Abstract: A non-contact dancer mechanism for conveying a web of brittle material includes a guide rail and a variable position web support plenum adjustably positioned on the guide rail. The variable position web support plenum may include an arcuate outer surface with a plurality of fluid vents for emitting a fluid to support the web of brittle material over and spaced apart from the arcuate outer surface thereby preventing mechanical contact and damage to the web of brittle material. A support plenum counterbalance may be mechanically coupled to the variable position web support plenum, wherein the support plenum counterbalance supports at least a portion of the weight of the variable position web support plenum on the guide rail. Apparatuses incorporating the non-contact dancer mechanism and methods for using the non-contact dancer mechanism for handling continuous webs of brittle material are also disclosed.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: March 19, 2013
    Assignee: Corning Incorporated
    Inventors: Chester H. H. Chang, Kevin A Cole, Sean M. Garner, Gary E. Merz, Richard H. Weachock
  • Patent number: 8177940
    Abstract: A web stabilizer adapted to stabilize a web moving across a span between two components of a web machine or machines, the stabilizer including: a surface facing and adjacent the moving web, and at least one transition in the surface of the stabilizer, wherein the transition is a protrusion or recess in the surface between a leading edge of the stabilizer facing a direction of web travel and a trailing edge of the stabilizer.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: May 15, 2012
    Assignee: Andritz Inc.
    Inventors: Gerald Kramer, Alain Chamberland, Rudy Chang, Paul Richards, Kurt Mitterboeck, Edward Brossard, Joseph Guadagno, Dave Gamble
  • Patent number: 8118977
    Abstract: An apparatus for handling a moving material web includes: a treatment unit including a rotating conveyor belt which forms a closed loop and carries the material web; a second treatment unit with a second conveyor belt which also forms a closed loop, both treatment units being connected parallel relative to each other; a first switch-over for the transfer of the web from the first to the second conveyor belt; and a second switch-over unit for the transfer of the web from the second to the first conveyor belt.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: February 21, 2012
    Assignee: Voith Patent GmbH
    Inventors: Wolfgang Denk, Norbert Karner
  • Patent number: 8080132
    Abstract: The invention relates to a device (11) for stabilising the transport of a material web (12) on the upper face of an air-permeable machine clothing (10), in particular a fibrous web. The device is located on the underside of the machine clothing directly upstream of an intake nip in the direction of travel (17) of the web, said nip being formed by a roll (5) and the machine clothing, and comprises a first negative-pressure zone (19) and at least one vacuum opening (20) that faces essentially in the opposite direction to the direction of travel of the web, communicating with the first negative-pressure zone of the device. This permits the boundary layer (23) of air that is carried along by the underside of the machine clothing to be at least partially sucked from said clothing into the first negative-pressure zone.
    Type: Grant
    Filed: July 6, 2005
    Date of Patent: December 20, 2011
    Assignee: Voith Patent GmbH
    Inventors: Thomas Scherb, Carlos Luiz Silva
  • Patent number: 7976680
    Abstract: Rope guide arrangement, deflection device, and method for guiding a leader strip of a material web through a device. The arrangement includes at least two ropes being arranged offset relative to one another in a first plane defined by a machine direction and a transverse machine direction. Further, the at least two ropes are arranged offset relative to one another in a second plane oriented at a non-zero angle from the first plane.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: July 12, 2011
    Assignee: Voith Patent GmbH
    Inventors: Wolfgang Drefs, Sylvain Demers, Josef Schneid
  • Patent number: 7892399
    Abstract: An air stabilization system employing two parallel, opposite-facing Coanda nozzles, with each nozzle exhausting gas at opposite directions, subjects a moving flexible web to opposing forces effective to create local tension within the web. Each nozzle includes an elongated slot that is perpendicular to the path of the moving web. The nozzles serve as separate points along the machine direction for controlling the height of the web. The operative surface with the nozzles can exhibit a flush surface. The nozzles can be formed on elevated structures on the operative surface. The operative surface can be covered with a transparent substrate to minimize shape distortions on the moving web and to prevent debris from collecting around the sensor. By modulating the velocities of gases exiting the nozzles, the shape of the web can be manipulated to present a planar contour. The air stabilization system can be incorporated into a caliper scanner.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: February 22, 2011
    Assignee: Honeywell ASCa Inc.
    Inventors: Duck Graham, Tamer Alev, Michael Hughes, Ron Beselt, Glen Visser, Daniel Gordon, Salvatore Chirico
  • Patent number: 7681327
    Abstract: A vacuum belt conveyor of a web forming machine for transferring a threading tail has at least two turning rolls (16, 17) and an air-permeable belt loop (20), arranged around the turning rolls (16, 17). The vacuum belt conveyor also has vacuum means (22) for creating a vacuum effect on both the section of the belt loop (20) conveying the threading tail (23) and in connection with the first turning roll (16) of the turning rolls (16, 17). Arranged in connection with the first turning roll (16) in the travel direction of the threading tail (23) there is at least one cross-directional dividing structure (24) for creating at least two axial vacuum zones (25).
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: March 23, 2010
    Assignee: Metso Paper, Inc.
    Inventors: Veli-Pekka Koljonen, Matti Lehtonen
  • Publication number: 20100058907
    Abstract: Guiding and cutting apparatus for use in a paper converting and sheet inserting apparatus. Guiding apparatus includes first and second rollers for engaging lateral edges of a web and a driving apparatus configured to permit the rollers to rotate at different surface speeds relative to one another. Cutting apparatus includes an angled blade for transversely cutting each side-by-side portion of a slit web into discrete sheets. Two side-by-side sheets are cut from respective web portions separately in time. Method, blade apparatus, web brake and slitter apparatus are disclosed.
    Type: Application
    Filed: September 5, 2008
    Publication date: March 11, 2010
    Applicant: Kern International, Inc.
    Inventor: Peter Kern
  • Patent number: 7625465
    Abstract: Vacuum belt conveying device for guiding a moving web, in particular a web threading strip of a paper or board web, having an air-permeable transport belt guided endlessly in a loop with an upper run and a lower run, and a device arranged within the loop for applying a vacuum to the inner side of one of the runs of the transport belt in order to hold the web firmly on the transport belt, in which the device for applying a vacuum is formed by means of at least one long-gap ejector, which in each case has an air jet injector having a large number of air outlet nozzles along the inlet side of the long gap and, on the inlet side, is positioned at a distance under the inner side of the run which is provided to hold the web firmly.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: December 1, 2009
    Assignee: Andritz Kusters GmbH
    Inventors: Andreas Pesch, Bernhard Schmitz
  • Patent number: 7468117
    Abstract: A process for producing tissue webs is disclosed. In particular, the process is directed to transferring a wet web from a transfer surface to a separate conveyor, such as a fabric. The process, in one embodiment, may include the steps 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 surface to the fabric while subjecting the wet tissue web to temperatures and pressures sufficient to cause gases to evolve from liquids associated with the web. The gases form in between the tissue web and the transfer surface facilitating transfer of the web onto the fabric. In one particular embodiment, for example, gases are evolved by heating the wet web and then subjecting the web to a suction force.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: December 23, 2008
    Inventors: Craig A. Blodgett, Paul D. Beuther
  • Publication number: 20080302499
    Abstract: Rope guide arrangement, deflection device, and method for guiding a leader strip of a material web through a device. The arrangement includes at least two ropes being arranged offset relative to one another in a first plane defined by a machine direction and a transverse machine direction. Further, the at least two ropes are arranged offset relative to one another in a second plane oriented at a non-zero angle from the first plane.
    Type: Application
    Filed: May 6, 2008
    Publication date: December 11, 2008
    Applicant: VOITH PATENT GmbH
    Inventors: Wolfgang DREFS, Sylvain DEMERS, Josef SCHNEID
  • Patent number: 7422661
    Abstract: Equipment for leading a web threading tail in a paper machine has at least two sequential surfaces (11) in the direction of travel of the web threading tail (10), between which a nozzle (12) is arranged to form a directed air blast and thus to transport the web threading tail (10). The equipment has an element (13) in which an exhaust zone (20) is arranged in the surface (11) before the nozzle (12) in the direction of travel of the web threading tail (10), for leading air away from the element (13) between the web threading tail (10) and the surface (11).
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: September 9, 2008
    Assignee: Metso Paper, Inc.
    Inventors: Vesa Ahvenniemi, Bo Fagerström, Hannu Kasula, Jorma Kinnunen, Seppo Laine, Kenneth Widell, Juha Lipponen
  • Patent number: 7381304
    Abstract: A method for threading a running paper web from a preceding section to a following section of a paper-making or paper-finishing machine, includes the steps of: providing a threading tail of the running paper web by cutting it from the running paper web at least one of its edges; providing at least one sensing element for gaining data from at least one property of the threading tail and/or threading process; transferring the gained data into a data collecting system and/or into an analysis system; and using the data for influencing the at least one property of the threading tail and/or the threading process.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: June 3, 2008
    Assignee: Voith Paper Patent GmbH
    Inventors: Allan Broom, Sylvain Demers, Wolfgang Drefs
  • Patent number: 7377994
    Abstract: A web is threaded in the reeling of a paper or board web, by passing a web tail strip (W) into a reeling nip between a reeling drum (10) and a reel spool (12), on which a web roll is formed. The tail strip (W) is passed into the reeling nip by a suction zone (20) which extends substantially around the entire reeling drum circumference and is (10) in an area where a full-width web runs during reeling, so that the tail strip (w) can be conducted directly along the suction zone (20). The suction zone (20) is placed in the longitudinal direction of the reeling drum (10), i.e. in the width direction of the web.
    Type: Grant
    Filed: August 7, 2003
    Date of Patent: May 27, 2008
    Assignee: Metso Paper, Inc.
    Inventors: Vesa Ahvenniemi, Kenneth Widell, Hannu Kasula, Seppo Laine, Bo Fagerström
  • Patent number: 7377999
    Abstract: An arrangement in the on-line finishing of a paper machine, which includes at least one finishing stage (12, 13) for the paper web produced, has cutting equipment (16) for forming the tail as well as tail threading equipment (15) for carrying the tail through the finishing stage (12, 13). At the end of the finishing stage (12, 13) there is a draw point (24), through which a carrier rope system (17) included in the tail threading equipment (15) is adapted to pass. The draw point (24) is formed between one cylinder (28) and a wire (29) arranged in contact with it for forming a single-contact draw point.
    Type: Grant
    Filed: November 3, 2003
    Date of Patent: May 27, 2008
    Assignee: Metso Paper, Inc.
    Inventors: Vesa Ahvenniemi, Jorma Kinnunen
  • Publication number: 20080036135
    Abstract: A stationary working surface of a one roll microcreper member is of plastic resin having low wear and friction properties. As a primary pressing member subject to concentrated force it is 0.040 inch thick. One or both opposed retarder members of a bladed microcreper are of the plastic. Thermoplastics meeting wear and friction limits, e.g. ultra high density polyethylene, are employed. Primary extensions, some having openings, slots or holes serve as flexible retarders to engage treated material. By a load-spreading surface, the thermoplastic primary member is restrained without distortion. By this surface being linear it slideably inserts into a mounting. By this surface being parallel to the roll axis the primary member is free for cross-machine thermal expansion. A primary member shown is sheet form, mounted between sheet metal members, one with a restraint surface. Sheet materials of polyolefins, wood pulp, etc.
    Type: Application
    Filed: January 8, 2007
    Publication date: February 14, 2008
    Inventors: J. Drew Horn, Peter R. Smith, Richard C. Walton
  • Publication number: 20080029237
    Abstract: A swing paper machine configured to manufacture both wet crepe paper web having a moisture content of at least 20% and dry crepe paper web having a moisture content less than about 15%. The paper machine includes a Yankee dryer having a paper web positioned thereon, a creping doctor blade configured to remove the paper web from the Yankee dryer as either the wet crepe paper web or the dry crepe paper web, a first reel, at least one carrier web, and at least one dryer. The wet crepe paper web is carried by the at least one carrier web to the at least one dryer for reducing a moisture content of the wet crepe paper web. The wet crepe paper web bypasses engagement with the first reel. The dry crepe paper web engages the first reel and is wound into a parent roll. The paper machine is changeable between manufacture of wet and dry crepe paper web without altering a position of the first reel and the at least one carrier web relative to the Yankee dryer.
    Type: Application
    Filed: August 2, 2006
    Publication date: February 7, 2008
    Inventors: Dennis Michael Urbanek, John Earle Wells
  • Patent number: 7294235
    Abstract: There is described a method and apparatus for applying steam from a steam source to a moving web to thereby improve the smoothness and gloss of the web. A housing has at least one cooling chamber upstream and at least one steam chamber downstream. The cooling air in the cooling chamber is used to cool the web before steam is applied to the web from the steam chamber. This allows a sufficient volume of steam to be delivered to the web to thereby raise its moisture content to a desired level to thus achieve optimized calendering of the web.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: November 13, 2007
    Assignee: ABB Ltd.
    Inventor: Robert G. Hamel
  • Patent number: 7192506
    Abstract: A dry end of a tissue machine is made shorter by close-coupling a reel-up to the drying section and supporting the web from the drying section to the reel-up by a foil or a belt such that web stability is maintained, thus allowing high-speed operation. The foil's downstream edge can form a nip with the paper roll and nip load can be controlled by controlling pivotal movement of the foil. The reel-up can include a calendering belt for calendering the web as it passes through a nip between the belt and a reel drum supported on the belt, and a rotatable reel spool on which a paper roll is wound in nipping engagement with the reel drum. Alternatively, the reel drum can be eliminated and the paper roll can be supported on the belt. A composite shaftless core for winding is also disclosed.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: March 20, 2007
    Assignee: Metso Paper Karlstad AB
    Inventor: Anders Tommy Lindén
  • Patent number: 7179349
    Abstract: A web (W) is passed from a preceding treatment stage to a finishing device in which the web (W) is finished in the finishing device and from which finishing device the web (W) is passed further to a subsequent treatment stage. The web (W) is brought to a roll (11; 14) of the finishing device as supported substantially before a nip area (N1; N2). The web (W) is passed from the circumference of a roIl (12; 15) of the finishing device as substantially supported afler the nip area (N1; N2). A device for passing a web in connection with a finishing device of a paper machine causes a web (W) to be brought by the device to the circumference of a roll (11; 14) of the finishing device substantially before a nip area (N1; N2) and/or the web (W) can be passed from the circumference of a roll (12; 15) of the finishing device substantially after the nip area (N1; N2).
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: February 20, 2007
    Assignee: Metso Paper, Inc.
    Inventor: Pekka Koivukunnas
  • Patent number: 7135091
    Abstract: The invention relates to an arrangement for threading a pulp web (W) from the press section (1) of a pulp machine to the dryer (2) of the pulp machine. The arrangement comprises a closing tail threading belt (3) or the like, which is arranged to convey the narrow tail end (Wh) formed on the pulp web (W) inside the dryer (2), where the tail threading cord travels outside the edge of the normal web line of the pulp web. The tail end (Wh) can subsequently be broadened into a normal-width pulp web (W). The arrangement further comprises means (7) for gripping the tail end (Wh) in order to bring the tail end inside/between a closing tail threading cord (3) or the like, whereby the gripping means (7) are arranged to function at the normal running speed of the pulp machine.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: November 14, 2006
    Assignee: Metso Paper, Inc.
    Inventors: Olli Huhtala, Tapani Tilli
  • Patent number: 7128289
    Abstract: An apparatus for reel replacement in machines for the production of reels of light-weight web material, of a type with a device for winding material onto a tubular core or rod and a device for feeding an unloaded rod (spool) intended to replace the reel. The apparatus has a surface (80) able to delimit, in cooperation with the surface of an unloaded rod (51), a channel (85) to which a jet of air produced by a plurality of nozzles (9) is directed.
    Type: Grant
    Filed: July 11, 2005
    Date of Patent: October 31, 2006
    Assignee: FOCUS S.R.L. societa unipersonale
    Inventor: Fabio Perini
  • Patent number: 7112258
    Abstract: A dry end section for a paper-making machine for producing a high-bulk tissue is provided. Such a machine comprises a through-air dryer adapted to finally dry a paper web and a through-air drying fabric configured to transport the web through the through-air dryer. A separating device is included for facilitating separation of the web from the through-air drying fabric. A reel is also provided and is configured to receive the web thereon. The web is received directly on the separating device or on a fabric wrapped about the separating device. In some instances, the web may be compressed between the separating device and an adjacent roll or by a web-compressing device disposed along the fabric transporting the web. The web is then transported to the reel directly from the fabric or other support mechanism extending between the separating device and the reel, without free draw of the web. Associated methods are also provided.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: September 26, 2006
    Assignee: Metso Paper Karlstad Aktiebolag (AB)
    Inventors: Ingvar Berndt Erik Klerelid, Lars-Erik Roland Önnerlöv, Leif Sören Videgren
  • Patent number: 7067039
    Abstract: A variable representing runnability of a paper web to be manufactured with a paper machine or processed with a finishing apparatus is measured and the speed difference between operational groups of the paper machine and/or the finishing apparatus is adjusted on the basis of the measurement of said variable such that the moisture profile of the paper web is measured substantially along the entire width of the paper web, the minimum and maximum values for moisture are defined on the basis of the moisture profile, a drawing window describing the allowable tension to be directed to the paper web is defined, the lower and upper limits of the drawing window being defined on the basis of the minimum and maximum values for moisture, and the speed difference between the operational groups is adjusted so that the paper web tension is within the range defined by the drawing window.
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: June 27, 2006
    Assignee: Metso Automation OY
    Inventors: Jari Almi, Pekka Höyssä
  • Patent number: 7056420
    Abstract: The invention relates to a method in leading a web threading tail particularly in a paper machine. In the method a device is used, which is moved close to a fabric transporting the web threading tail and by means of which the web threading tail is detached from the surface of the fabric. The web threading tail is transferred laterally relative to its direction of travel to the following web threading device, after which the device is moved away from the vicinity of the web threading tail. The transfer of the web threading tail in the cross direction of the paper machine takes place mechanically by pushing. The invention also related to a corresponding device.
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: June 6, 2006
    Assignee: Metso Paper, Inc.
    Inventor: Juha Salmela
  • Patent number: 7008510
    Abstract: An arrangement in tail threading in a multinip calender of a paper machine comprises rolls that form nips, extraction rolls as well as tail threading apparatus for guiding the tail to be transferred during tail threading through the multinip calender. The arrangement includes a holding point adapted prior to the last nip and a cutting device. The arrangement further includes a support device adapted at the holding point for supporting the tail during cutting.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: March 7, 2006
    Assignee: Metso Paper, Inc.
    Inventors: Ismo Kallio, Juha Laitio, Pekka Linnonmaa
  • Patent number: 7005036
    Abstract: An apparatus is available for transferring a flexible material web from an upstream section to at least one downstream section of a machine having a web running direction. The machine is configured for at least one of manufacturing and treating the material web. The apparatus includes two separation elements configured for splitting and thereby separating the material web into an edge strip, an adjoining transfer strip and a remaining web adjoining the transfer strip, the edge strip extending in the web running direction. The apparatus further includes at least one deflection device configured for deflecting the edge strip away from the transfer strip and simultaneously tautening the edge strip upon deflection thereof.
    Type: Grant
    Filed: July 16, 2003
    Date of Patent: February 28, 2006
    Assignee: Voith Paper Patent GmbH
    Inventors: Rudolf Beisswanger, Wolfgang Drefs, Allan Broom, Sylvain Demers
  • Patent number: 6998018
    Abstract: A creped tissue paper is made by creping a tissue paper from a drying cylinder with a creping doctor, receiving the creped web on a carrying fabric, carrying the creped web on the carrying fabric through a compression nip that compresses the web to substantially reduce its thickness and improve softness of the web, and carrying the creped, compressed web on the carrying fabric or a subsequent fabric to a reel-up.
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: February 14, 2006
    Assignee: Metso Paper Karlstad AB
    Inventors: Ingvar Berndt Erik Klerelid, Johan Ulf Rågård
  • Patent number: 6994773
    Abstract: An apparatus is available for transferring a flexible material web from an upstream section to at least one downstream section of a machine having a web running direction. The machine is configured for at least one of manufacturing and treating the material web. The apparatus includes two separation elements configured for splitting and thereby separating the material web into an edge strip, an adjoining transfer strip and a remaining web adjoining the transfer strip, the edge strip extending in the web running direction. The apparatus further includes at least one deflection device configured for deflecting the edge strip away from the transfer strip and simultaneously tautening the edge strip upon deflection thereof.
    Type: Grant
    Filed: July 10, 2001
    Date of Patent: February 7, 2006
    Assignee: Voith Paper Patent GmbH
    Inventors: Rudolf Beisswanger, Wolfgang Drefs, Allan Broom, Sylvain Demers
  • Patent number: 6972073
    Abstract: The invention relates to a method for conveying and guiding a lead-in strip in a paper machine, in which method a lead-in strip is directed over a run of a conveyor in the paper machine and a longitudinal vacuum effect is produced across the run of the conveyor in the direction of moment of the run of the conveyor.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: December 6, 2005
    Assignee: Metso Paper, Inc.
    Inventor: Jukka Autio
  • Patent number: 6972074
    Abstract: Equipment for fabric guiding in a paper machine has a fabric (10) and rolls (12–18) adapted to support it. In connection with the roll (17) end there is arranged equipment comprising a stand (19) and a nip guard (26). The stand (19) includes a transfer base (20) as well as transfer equipment (22) for moving the transfer base (20). The equipment further comprises an edge detector (23) for the roll (17) arranged on the opposite side of the fabric (10), for which edge detector there is a vertical bracket (25) arranged in the stand (19). The vertical bracket (25) and the nip guard (26) form an integrated sheet-metal construction.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: December 6, 2005
    Assignee: Metso Paper, Inc
    Inventors: Ville Nenonen, Samppa J. Salminen, Risto Väätänen
  • Patent number: 6946059
    Abstract: A paper machine for manufacturing a fiber web traveling in a machine direction and having a tail includes at least one rope defining a rope nip. A threading arm assembly is positioned in association with the rope nip. The threading arm includes a frame and a diverter carried by the frame. The diverter is movable to divert the tail in a direction transverse to the machine direction toward the rope nip.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: September 20, 2005
    Assignee: Voith Paper Patent GmbH
    Inventors: Leif Mohrsen, John Eagle
  • Patent number: 6942759
    Abstract: A method of threading a fiber web tail movable in a machine direction, comprising the steps of: positioning a threading arm assembly in association with a rope nip, the threading arm assembly including a frame and a diverter carried by and movable relative to the frame; diverting the tail using the threading arm assembly in a direction transverse to the machine direction toward the rope nip; and threading the diverted fiber web tail into said rope nip.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: September 13, 2005
    Assignee: Voith Paper Patent GmbH
    Inventors: Leif Mohrsen, John Eagle
  • Patent number: 6942758
    Abstract: A method and equipment for tail threading in a paper machine in which tail threading is carried out in stages: the web is guided to the broke treatment at a selected dryer, a cut is formed in the web to separate a narrow tail from the rest of the web, i.e. the broke web, prior to the dryer, the edge opposite to the cut of the broke web is turned away from the cutting point to form an open draw between the tail and the broke web, the tail is guided from the selected dryer to the following section while the broke web is transferred further to the broke treatment, while travelling in a controlled manner, the tail is widened to the full width and the broke web is simultaneously reduced away.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: September 13, 2005
    Assignee: Metso Paper, Inc.
    Inventors: Kari Juppi, Osmo Jääskeläinen, Antti Komulainen
  • Patent number: 6936137
    Abstract: A device for non-contact support of a continuous moving web of material employs an air clamp stabilizer that includes a Coanda slot and a backstep that is located downstream of the direction of the airflow extending from the Coanda slot. This configuration permits a Coanda jet to expand and to create an additional suction force. Vortex formation may also occur which further contributes to the strength of the suction force. As the web passes the stabilizer, an area of the web material rides on an air bearing that is maintained above the stabilizer surface and downstream of the backstep.
    Type: Grant
    Filed: October 2, 2002
    Date of Patent: August 30, 2005
    Assignee: Honeywell International Inc.
    Inventors: Stefan Moeller, Steven Axelrod, Jenson Luis
  • Patent number: 6928912
    Abstract: An apparatus transfers a moving web of a flexible material from a web guide surface. The web guide surface outputs the moving web, and the moving web has at least one web edge. The apparatus includes at least one edge nozzle, each edge nozzle being positioned so as to be proximate one at least one web edge. Each edge nozzle is configured for separating the moving web from the web guide surface and is further configured to function as a severing device. Each edge nozzle is thereby configured for transversely severing the moving web and forming a new start portion thereof. Each edge nozzle briefly ejects therefrom a high-energy air jet, each high-energy air jet being ejected between the web guide surface and the moving web.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: August 16, 2005
    Assignee: Voith Paper Patent GmbH
    Inventors: Wolfgang Drefs, Sylvain Demers, John Eagle
  • Patent number: 6918996
    Abstract: A method and apparatus in ropeless tail threading in a multi-roll calender is disclosed wherein the threading tail is guided through the multi-roll calender in such a way that, before the multi-roll calender, the threading tail is guided first of all to the broke processing and then cut when the tail threading begins. The tail threading takes place in stages, so that at least once during the tail threading the threading tail in connection with the multi-roll calender is guided to broke processing and cut, after which the tail threading is continued, once the previous stage has succeeded.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: July 19, 2005
    Assignee: Metso Paper, Inc.
    Inventors: Kari Hasanen, Juha Laitio, Mika Viljanmaa
  • Patent number: 6916404
    Abstract: A method and an apparatus for web threading in a drying section of a paper machine or the like. A leader (24) and a so called run-down strip are formed by cutting in the web coming to the drying cylinder in the drying section. An underpressure box (18) is arranged at the opening gap between the drying cylinder (14) and the drying wire, on that side of the wire which is away from the web, whereby this box can direct against the web an underpressure which is controllable in the machine's cross direction. The underpressure box creates an underpressure region (34?) between the leader and the underpressure box, the region having an underpressure p1 at the detachment point, i.e. in the area where the wire is detached from said drying cylinder (14), which underpressure is sufficient to detach the leader from said drying cylinder.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: July 12, 2005
    Assignee: Metso Paper, Inc.
    Inventors: Antti Komulainen, Kari Juppi, Jorma Laapotti, Reijo Jokinen, Matti Kurki, Juha Lipponen, Markku Lyytinen, Samppa J. Salminen
  • Patent number: 6905575
    Abstract: In a paper/board or finishing/converting machine, a calender (1) comprises a number of rolls (2, 3) formed into a roll stack, and a number of lift-out rolls (4), which are arranged in such a way that the web (W) being treated travels from one calender (1) nip (N) to another via a lift-out roll (4). Between the calender (1) roll (2, 3) and the lift-out roll (4), the web (W) being treated is supported by means of at least one closing member (5, 5?, 6) not extending through the nip (N), which closing member is formed by a belt, wire or metal wire (7), which is arranged to travel via two or more guide rolls (4, 8).
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: June 14, 2005
    Assignee: Metso Paper, Inc.
    Inventors: Pekka Linnonmaa, Antti Heikkinen
  • Patent number: 6849159
    Abstract: The invention concerns an equipment and a method in the transfer of a paper/board web in a paper or board machine. In an embodiment of the invention, the dryer section comprises at least one group of drying cylinders in which, instead of a conventional wire draw, a transfer belt (H100) is employed, to which the web (W) is affixed by effect of adhesion and which transfer belt is passed over drying cylinders (K1, K2, . . . ) and reversing rolls (E1, E2, . . . ) and further in said group (RI) of drying cylinders in the dryer section. The invention also concerns a method in the transfer of the web (W) in the dryer section (K) of a paper/board machine.
    Type: Grant
    Filed: May 28, 1998
    Date of Patent: February 1, 2005
    Assignee: Metso Paper, Inc.
    Inventors: Heikki Ilvespää , Juhani Vestola, Kari Juppi, Antti Komulainen
  • Publication number: 20040261962
    Abstract: A creped tissue paper is made by creping a tissue paper from a drying cylinder with a creping doctor, receiving the creped web on a carrying fabric, carrying the creped web on the carrying fabric through a compression nip that compresses the web to substantially reduce its thickness and improve softness of the web, and carrying the creped, compressed web on the carrying fabric or a subsequent fabric to a reel-up.
    Type: Application
    Filed: July 28, 2004
    Publication date: December 30, 2004
    Applicant: Metso Paper Karlstad AB
    Inventors: Ingvar Berndt Erik Klerelid, Johan Ulf Ragard
  • Publication number: 20040261966
    Abstract: A system for removing dust, dirt and like from the surface of a flexible paper substrate and accurately positioning same comprises a transport assembly for conveying the paper substrate along a path of travel. The transport assembly includes a rotating vacuum drum having an outer surface over which the paper substrate is trained in the direction of drum rotation as it moves along the path of travel. Openings are provided in the outer surface of the vacuum drum, and a suction source is connected to those openings so that dust, dirt and the like on the surface of the paper substrate are drawn away by the suction as the paper substrate moves along the path of travel over the drum. The linear speed of the paper substrate is slightly more or less than the surface velocity of the vacuum drum so that the paper sweeps across the drum surface during the cleaning process.
    Type: Application
    Filed: June 27, 2003
    Publication date: December 30, 2004
    Inventor: Charles Gary Atwell
  • Patent number: RE39601
    Abstract: To accomplish a web transfer, which in reliability is comparable to the one obtained with a closed draw, in any operating environment, but especially where it is desirable to transfer a fast running tissue web (4) from the drying section of a tissue machine, e.g., a Yankee dryer (2), to a reel-up (3), a web support device (10) extends across the width of the web (4) and along a predetermined run of the web support device has a support surface (11) formed by a series of plate member assemblies (23) having means for creating a flow of air in the direction of the web run. Between the web (4) and the support surface (11) the flow of air forms an air layer (15) of reduced static pressure, so as to stabilize the web (4) against flutter. The predetermined run may extend through a calender (7) and past scanner equipment (8). Pneumatic tail threading capabilities may be included.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: May 1, 2007
    Assignee: Metso Paper Karlstad AB
    Inventors: Tord O. S. Svanqvist, B. Lennart H. Örtemo