Paper Forming Member (e.g., Fourdrinier, Sheet Forming Member, Etc.) Patents (Class 162/903)
  • Publication number: 20030056914
    Abstract: Security paper (1) has a security zone (2) for providing protection against mechanical falsification. The security zone comprises a set of cells (3) indented in the paper and optionally interconnected by indented link portions, the thickness of the paper being substantially uniform throughout its area that is complementary to the cells (3) and to the link portions in the security zone (2).
    Type: Application
    Filed: September 3, 2002
    Publication date: March 27, 2003
    Inventors: Stephane Mallol, Yvan Thierry
  • Patent number: 6533901
    Abstract: A paper machine fabric comprising two separate layers which are made of a yarn system made up of warp and weft yarns forming the paper side and a yarn system made up of warp and weft yarns forming the machine side. The yarn system forming the paper side is arranged to comprise two warp systems and two weft systems. The warp system made up of top warps of the layer forming the paper side is interconnected with the warp system of the structure forming the machine side by means of binder yarns by arranging the binder yarns at the paper-side binding point to press the top warps inside the fabric in such a manner that the binder yarns are at the binding point under the surface of the fabric.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: March 18, 2003
    Assignee: Tamfelt Oyj ABP
    Inventor: Seppo Taipale
  • Patent number: 6508965
    Abstract: A process and an apparatus for the production of paper products, such as “cat litter” or paper fuel, comprising reducing paper to a particulate form by shredding and grinding, conveying the particles of paper from a hopper as a layer on a first conveyor firstly beneath a leveling and compacting roller and thereafter beneath a set of water sprayers, before discharging from the conveyor onto a second conveyor with the assistance of a rearwardly baffle plate to invert the layer during transfer. The inverted layer on the second conveyor passes to a third conveyor belt which moves through a ring with has the effect of wrapping the belt over itself and around the mix to form a tunnel enveloping and compacting the mix to form an extrusion. The paper product as extruded is cut into pellets before subjecting the pellets to dehydration. In the case of paper product to be used as paper fuel, the paper is mixed with coal dust.
    Type: Grant
    Filed: September 27, 1999
    Date of Patent: January 21, 2003
    Assignee: Fibrecycle Pty Ltd.
    Inventor: Donald B. Webb
  • Patent number: 6479414
    Abstract: A textile machine felt, which can be used, for example, as a compacting felt on machines for rendering textiles shrinkproof, consists of a ground textile (1) and a felt layer (2) which is stitched thereon and comprises at least in its surface region an elastic knit fabric (3), for example, a continuous warp knitted sleeve.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: November 12, 2002
    Assignee: Huyck Austria GmbH
    Inventor: Wolfgang Hauer
  • Publication number: 20020129914
    Abstract: Process for conditioning a circulating felt belt of a machine, pipe suction apparatus and traversing pipe suction apparatus therefor, the process including performing a zonal conditioning of a plurality of zones across a width of the felt belt by measuring at least one of, fibrous material web cross direction profile; felt belt cross direction profile; and permeability of the felt belt across the width of at least one of the web and the belt. The felt belt is conditioned depending on measuring results obtained for a respective zone. The pipe suction apparatus includes a ceramic body extending at least essentially across the entire width of the felt belt, the ceramic body being provided with a slotted surface by way of which the felt belt is subjectable to vacuum, with a respective effective amount of slotted surface being zonally variably adjustable by way of movable tongues.
    Type: Application
    Filed: December 31, 2001
    Publication date: September 19, 2002
    Applicant: VOITH PAPER PATENT GMBH
    Inventors: Joachim Grabscheid, Ulrich Begemann, Oswald Satzger, Wolfgang Mayer, Ralf Rziha, Wolfgang Bamberger, Georg Kleiser, Thomas Ruhl
  • Patent number: 6436240
    Abstract: Papermachine clothing comprises a base fabric comprising at least two superimposed perforated non-woven membranes (11, 12), the upper or paper side one of which (11), has a lower maximum creep modulus and is less hard than the lower or machine side membrane (12).
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: August 20, 2002
    Assignee: Voith Fabrics Heidenheim GmbH & Co. KG
    Inventor: John Jeffrey
  • Publication number: 20020088593
    Abstract: A yarn is produced which consists substantially of twisting filaments which are wrapped sequentially upon each other helically upon the yarn in layers, wherein the helically wound filaments preferably are wound right to left and then left to right alternatively to balance the yarn, wherein optionally a glue is applied to one of the filaments to maximize the performance of the yarn in producing paper.
    Type: Application
    Filed: August 9, 2001
    Publication date: July 11, 2002
    Inventor: Gerald J. Mauretti
  • Publication number: 20020088596
    Abstract: The invention relates to a paper machine clothing, notably an air-dry clothing (TAD clothing), in the form of a woven having a weaving design. According to the invention the relative depth of machine clothing cups which are open towards the contact surface of the paper is 20% or more, said relative cup depth being the quotient of the difference between the measurement height for which the bearing percentage is 30% and the measurement for which the bearing percentage is 60% on the one hand, and the sum of the diameters of a warp thread and a weft, on the other hand. The measurement height “0” is the outer limit of the paper machine clothing on the paper contact surface, the bearing percentage is the projected sectional area of the threads of the woven at a given measurement height in relation to the measurement surface, the section areas being parallel to the surface of the clothing.
    Type: Application
    Filed: October 4, 2001
    Publication date: July 11, 2002
    Inventor: Hans-Jurgen Lamb
  • Patent number: 6413377
    Abstract: A double layer papermaking fabric having twice as many paper side cross machine direction yarns as machine side cross machine direction layer. A system of machine direction yarns is interwoven with both cross machine direction layers, with each machine direction yarn forming first and second knuckles on each side of the fabric. The paper side knuckles are woven with uniform spacing and each machine side cross machine direction yarn is passed under by two machine direction knuckles spaced by at least one intermediate machine direction yarn.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: July 2, 2002
    Assignee: AstenJohnson, Inc.
    Inventor: Walter P. Wright
  • Patent number: 6397899
    Abstract: A transfer fabric for conveying wet paper from a sheet forming part to a hydro-extracting part and a papermaking machine using the same are disclosed. A transfer fabric for receiving from a paper forming fabric the wet paper formed by a sheet forming part and delivering the wet paper into a hydro-extracting part as the subsequent step. The transfer fabric is a clothed net produced by preparing as wefts such yarns having both monofilaments and plain threads of a small diameter so bound as to interpose water absorbing gaps therebetween on the running side face side and plain threads of a small diameter so bound as to interpose water absorbing gaps therebetween on the wet paper receiving face side, and as warps monofilaments or twisted monofilaments, laying the wefts in a plurality of layers and the warps in a single layer, and weaving the wefts and said warps.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: June 4, 2002
    Assignees: Kobayashi Engineering Works Ltd., Nippon Filcon Co., Ltd.
    Inventors: Shogo Kobayashi, Hiroyuki Nagura
  • Publication number: 20020060057
    Abstract: The invention relates to a paper machine wire for the wet end section of a paper machine, comprising a textile or non-textile fabric, especially a woven fabric, the one side of which is directed to the paper and the other, opposite side of which is directed to the paper machine, the one side of the fabric directed to the paper being at least partly covered by a fiber layer. The fiber layer is permanently compressed in some regions less intensively than in other regions.
    Type: Application
    Filed: December 22, 1999
    Publication date: May 23, 2002
    Inventor: ARVED H. WESTERKAMP
  • Publication number: 20020060058
    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: Application
    Filed: February 22, 2001
    Publication date: May 23, 2002
    Inventor: Robert L. Crook
  • Publication number: 20020060039
    Abstract: A paper machine fabric comprising two separate layers which are made of a yarn system made up of warp and weft yarns forming the paper side and a yarn system made up of warp and weft yarns forming the machine side. The yarn system forming the paper side is arranged to comprise two warp systems and two weft systems. The warp system made up of top warps of the layer forming the paper side is interconnected with the warp system of the structure forming the machine side by means of binder yarns by arranging the binder yarns at the paper-side binding point to press the top warps inside the fabric in such a manner that the binder yarns are at the binding point under the surface of the fabric.
    Type: Application
    Filed: June 15, 2001
    Publication date: May 23, 2002
    Applicant: TAMFELT OYJ ABP
    Inventor: Seppo Taipale
  • Patent number: 6391159
    Abstract: The invention relates to a method of and a device for the manufacture of dimensionally stable, liquid-impermeable, flexible, elastic pressbands, particularly for use with broad-nip shoepresses of paper making machines. The method comprising pouring a flowable mixture of a prepolymer onto a substrate moved by a distance maintaining device over a cylindrical mandrel and maintained during this movement in an adjustable distance from the surface of said mandrel, and being coated during this movement by a coating device with a flowable prepolymer, wherein during this coating of the substrate threads or wires are laid down onto the substrate in the direction of rotation of the mandrel and are coated with the polymer substance.
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: May 21, 2002
    Assignee: Scapa Forming GmbH
    Inventor: Werner Schön
  • Publication number: 20020056536
    Abstract: The invention relates to a paper machine clothing in the form of a fabric with a web pattern which recurs regularly over the surface and has indentations (20) that are formed by the thread overlays (21), the latter having been surface ground. Said thread overlays cover three consecutive warp or weft threads crosswise thereto. A paper machine clothing of this type can be used especially in “through air drying” techniques to produce an especially voluminous tissue paper.
    Type: Application
    Filed: October 19, 2001
    Publication date: May 16, 2002
    Inventor: Hans-Jurgen Lamb
  • Patent number: 6379506
    Abstract: Auto-joinable triple layer papermaker's forming fabrics which exhibit relatively low caliper values, good mechanical stability, and relatively high permeability. In one embodiment of the present invention, triple layer papermaker's forming fabrics having both top and bottom sets of machine direction and cross machine direction yarns are provided in which each yarn in the set of bottom machine directions yarns alternatively pairs with the two yarns in the set of bottom machine direction yarns that are woven immediately adjacent to it.
    Type: Grant
    Filed: October 5, 2000
    Date of Patent: April 30, 2002
    Assignee: Weavexx Corporation
    Inventors: Robert G. Wilson, Kevin John Ward
  • Patent number: 6334467
    Abstract: A flat woven papermaker's forming fabric having a paper side layer and a machine side layer interconnected by pairs of weft binder yarns. Each of the binder yarn pair members in sequence interweaves with a portion of the paper side layer warp yarns in segments of the weft yarn path so as to complete an unbroken weft path in the paper side layer weave pattern, and to provide an internal paper side layer float. Each of the binder yarn pair floats interlaces with a machine side layer warp yarn so as to bind the paper and machine side layers together. To recess the binder yarns from the plane of fabric wear the interlacing point is located at or near the midpoint of an internal float in the machine side layer warp yarn. The number of paper side layer weft yarns located between each of the pairs of intrinsic weft yarns is irregular within one repeat of the overall fabric weave pattern. The location of the paper side layer internal floats also determines the interlacing locations with the machine side layer.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: January 1, 2002
    Assignee: AstenJohnson, Inc.
    Inventors: Rex Barrett, Dale B. Johnson, Rick Stone
  • Patent number: 6276402
    Abstract: A “triple layer” fabric having upper and lower systems of interwoven yarns interconnected into an integral fabric by a system of stitching yarns. Preferably, the fabric is a forming fabric having upper and lower layers of uniformly sized machine direction (MD) yarns. Upper and lower layer cross machine direction (CMD) yarns weave, respectively, with the upper and lower MD yarns to define the upper and lower yarn systems. The lower layer CMD yarns are preferably larger in diameter than the MD yarns. The lower layer CMD yarns weave in a repeat pattern with respect to the lower layer MD yarns such that the lower layer CMD yarns weave in a repeat defined by floats under groups of at least three lower MD yarns and over pairs of adjacent lower MD yarns. Each lower layer MD yarn is in at least two different pairs relative to at least two different lower layer CMD yarns within the repeat which maintains a substantial degree of stacking of the lower layer MD yarns below respective upper layer MD yarns.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: August 21, 2001
    Assignee: AstenJohnson, Inc.
    Inventor: Samuel H. Herring
  • Patent number: 6240973
    Abstract: A forming fabric having a paper side layer and a machine side layer comprises at least two systems of weft yarns and a single set of warp yarn triplets. In the fabric weave pattern, each member of each triplet set of warp yarns interweaves with the paper side weft yarns to occupy in sequence segments of an unbroken warp path in the paper side surface, and the members of each triplet interlace in pairs with single machine side layer weft yarns. Each segment in the unbroken warp path is separated by at least one paper side layer weft yarn. The machine side layer interlacing points can be regularly or irregularly spaced. After heat setting, the fabrics typically have a warp fill from about 105% to about 140%, an open area of at least 35% in the paper side surface, and an air permeability typically from about 3,500 to about 8,200 m3/m2/hr. Paper products made using these fabrics have enhanced printability.
    Type: Grant
    Filed: October 11, 2000
    Date of Patent: June 5, 2001
    Assignee: AstenJohnson, Inc.
    Inventors: Richard Stone, Dale B. Johnson
  • Patent number: 6193847
    Abstract: A papermaking belt and paper made thereon. The papermaking belt comprises a patterned framework and a reinforcing element. The papermaking belt may be used as a through air drying belt, a forming wire, a backing wire, a conventional press felt, etc. The papermaking belt has a reinforcing element and a framework extending from the reinforcing element. Intermediate various portions of the framework are deflection conduits. The framework is interrupted and subdivided by synclines. The framework, synclines and deflection conduits respectively impart first, second and third values of intensive properties to regions of the paper made on these portions of the belt. The value of the intensive property of the regions of the paper corresponding to the synclines is intermediate the value of the regions of the paper corresponding to the framework and deflection conduits.
    Type: Grant
    Filed: June 12, 2000
    Date of Patent: February 27, 2001
    Assignee: The Procter & Gamble Company
    Inventor: Paul Dennis Trokhan
  • Patent number: 6123116
    Abstract: Multi-layer papermaker's fabrics are provided which include in the bottom fabric layer pairs of cross machine direction yarns that are woven in the same shed so as to provide paired bottom fabric layer cross machine direction yarns. Typically, these paired yarns comprise two smaller yarns that replace what otherwise would have been a larger single yarn, thereby reducing the thickness, void volume and water carrying propensity of the fabric. These fabrics may include a relatively large number of cross machine direction yarns on the papermaking surface and/or a papermaking surface having single float machine direction knuckles, so as to provide a high level of fiber support and good papermaking qualities.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: September 26, 2000
    Assignee: Weavexx Corporation
    Inventors: Kevin John Ward, Brian Herbert Pike Troughton
  • Patent number: 6120642
    Abstract: The invention relates to a papermaking fabric and method of producing a soft, bulky tissue web in which an embryonic fiber web is wet-molded onto a three-dimensional substrate wherein the web-contacting surface of said substrate is a three-dimensional porous nonwoven material. The method can provide higher levels of bulk and surface depth in tissues than is practical with woven papermaking fabrics.
    Type: Grant
    Filed: June 3, 1998
    Date of Patent: September 19, 2000
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Jeffrey Dean Lindsay, Mark Alan Burazin
  • Patent number: 6116156
    Abstract: A machine is provided for producing a continuous material web. In particular, a paper web or a cardboard web can be produced by the machine. The machine has a number of rolls, around which the material web is guided by the use of at least one belt. The belt has at least two zones. The zones have different properties with at least one of the zones being designed to transmit a drive force to the rolls of the machine.
    Type: Grant
    Filed: July 2, 1998
    Date of Patent: September 12, 2000
    Assignee: Voith Sulzer Papiermaschinen GmbH
    Inventors: Christian Schiel, Karlheinz Straub
  • Patent number: 6112774
    Abstract: A forming fabric has machine direction yarns and cross machine direction yarns interwoven in a repeating pattern of multiple repeating units. The repeating units of the pattern comprise: paper side cross-machine direction yarns forming the paper side of the fabric; machine side cross-machine direction yarns forming the machine side of the fabric; and machine direction yarns interwoven with both the paper side cross machine direction yarns and the machine side cross machine direction yarns. The machine direction yarns comprise first and second sets of machine direction yarns arranged in an alternating pattern. Each of the machine direction yarns of the first and second sets passes above four paper side cross machine direction yarns to form paper side knuckles separated from one another by at least two paper side cross machine direction yarns.
    Type: Grant
    Filed: June 2, 1998
    Date of Patent: September 5, 2000
    Assignee: Weavexx Corporation
    Inventor: Robert G. Wilson
  • Patent number: 6073661
    Abstract: A process for forming paper using a papermaker's forming fabric comprising a fabric layer including cross machine direction fabric yarns and machine direction fabric yarns interwoven to form a papermaking surface with alternating single knuckles thereon. First additional cross machine direction yarns are positioned between adjacent cross machine direction fabric yarns on the papermaking surface of the fabric layer. Second additional cross machine direction yarns are positioned between the cross machine direction fabric yarns on the papermaking surface of the fabric layer. Each of the first and second additional cross machine direction yarns serve as fiber supporting yarns and as locator yarns for another of the first and second additional cross machine direction yarns. Each of the first and second additional cross machine direction yarns are interwoven with the fabric layer. Paper stock is deposited on the fabric to form a wet paper web, and moisture is removed from the wet paper web to form paper.
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: June 13, 2000
    Assignee: Weavexx Corporation
    Inventor: Robert G. Wilson
  • Patent number: 6071837
    Abstract: A membrane felt for a tissue making process using a Yankee or MG cylinder the membrane felt comprising a polymeric matrix membrane layer (11) and a supporting base structure (12). The polymeric matrix optionally at least partially encapsulates parallel yarns extending it at least one direction. The supporting base structure is a textile substrate. These are secured together, preferably via a batt fibre layer which may be needled between the supporting base structure and membrane layer.
    Type: Grant
    Filed: August 1, 1997
    Date of Patent: June 6, 2000
    Assignee: Voith Fabrics Heidenheim GmbH & Co KG
    Inventor: Robert L. Crook
  • Patent number: 6010598
    Abstract: A papermaking belt comprised of a resinous polymer with improved elongation. The papermaking belt of this invention is comprised of a reinforcing element and a resinous polymer wherein the resinous polymer exhibits improved elongation both at room temperature and elevated temperatures while maintaining creep resistance and without any undue loss of tensile strength. In addition to papermaking belts, the resinous polymer of this invention may also be used for other applications.
    Type: Grant
    Filed: May 8, 1997
    Date of Patent: January 4, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Glenn David Boutilier, Paul Dennis Trokhan, Michael Gomer Stelljes, Jr.
  • Patent number: 5983953
    Abstract: A process for forming paper using a papermaker's forming fabric comprising a fabric layer including cross machine direction fabric yarns and machine direction fabric yarns interwoven to form a papermaking surface with alternating single knuckles thereon. First additional cross machine direction yarns are positioned between adjacent cross machine direction fabric yarns on the papermaking surface of the fabric layer. Second additional cross machine direction yarns are positioned between the cross machine direction fabric yarns on the papermaking surface of the fabric layer. Each of the first and second additional cross machine direction yarns serve as fiber supporting yarns and as locator yarns for another of the first and second additional cross machine direction yarns. Each of the first and second additional cross machine direction yarns are interwoven with the fabric layer. Paper stock is deposited on the fabric to form a wet paper web, and moisture is removed from the wet paper web to form paper.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: November 16, 1999
    Assignee: Weavexx Corporation
    Inventor: Robert G. Wilson
  • Patent number: 5937914
    Abstract: A papermaker's fabric includes a base fabric structure that includes MD yarns and primary CMD yarns interlaced to form a papermaking surface. The papermaker's fabric further includes first and second auxiliary CMD yarns positioned between each pair of adjacent primary CMD yarns. Each first auxiliary CMD yarn has an interlacing pattern relative to the MD yarns that is identical to a first of the pair of adjacent primary CMD yarns, and each second auxiliary CMD yarn has an interlacing pattern relative to the MD yarns that is identical to a second of the pair of adjacent primary CMD yarns. The first auxiliary CMD yarn is positioned between the second primary and auxiliary CMD yarns.
    Type: Grant
    Filed: February 20, 1997
    Date of Patent: August 17, 1999
    Assignee: Weavexx Corporation
    Inventor: Robert G. Wilson
  • Patent number: 5925221
    Abstract: A papermaking fabric primarily for use as a press felt comprises basalt fibers.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: July 20, 1999
    Assignee: Scapa Group PLC
    Inventors: Ian Christison Sayers, Robert David Buchanan
  • Patent number: 5900122
    Abstract: A papermaking forming belt and a method of making the same, as well a cellulosic web and the process of making the web are disclosed. The belt comprises an air-permeable reinforcing structure and a resinous framework. The reinforcing structure has a web-facing side defining an X-Y plane, a machine-facing side opposite the web-facing side, and a Z-direction perpendicular to the X-Y plane. The resinous framework is comprised of a plurality of discrete protuberances extending from the reinforcing structure, each of the protuberances having an axis, a top surface, a base surface opposite the top surface, and walls. The axes of at least some of the protuberances and the Z-direction form an acute angles therebetween.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: May 4, 1999
    Assignee: The Procter & Gamble Company
    Inventor: Larry L. Huston
  • Patent number: 5894867
    Abstract: A process for forming paper using papermaker's forming fabric comprising a fabric layer including cross machine direction fabric yarns and machine direction fabric yarns interwoven to form a papermaking surface with alternating single knuckles thereon. First additional cross machine direction yarns are positioned between adjacent cross machine direction fabric yarns on the papermaking surface of the fabric layer. Second additional cross machine direction yarns are positioned between the cross machine direction fabric yarns on the papermaking surface of the fabric layer. Each of the first and second additional cross machine direction yarns serve as fiber supporting yarns and as locator yarns for another of the first and second additional cross machine direction yarns. Each of the first and second additional cross machine direction yarns are interwoven with the fabric layer to float over odd numbers of adjacent fabric layer machine direction yarns.
    Type: Grant
    Filed: October 27, 1997
    Date of Patent: April 20, 1999
    Assignee: Weavexx Corporation
    Inventors: Kevin J. Ward, Robert G. Wilson
  • Patent number: 5881764
    Abstract: A multi-layer papermaker's forming fabric utilizes stitching yarns in the papermaking surface and is formed of repeating units, each of which comprises: a set of top machine direction yarns; a set of bottom machine direction yarns; a set of bottom cross-machine direction yarns interwoven with the set of bottom machine direction yarns; and pairs of first and second stitching yarns extending in the cross machine direction. The first and second stitching yarns of each pair are interwoven with the top and bottom machine direction yarns such that, as a fiber support portion of the first stitching yarn is interweaving with the top machine direction yarns, a binding portion of the second stitching yarn is positioned below the top machine direction yarns, and such that as a fiber support portion of the second stitching yarn is interweaving with the top machine direction yarns, a binding portion of the first binding yarn is positioned below the top machine direction yarns.
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: March 16, 1999
    Assignee: Weavexx Corporation
    Inventor: Kevin J. Ward
  • Patent number: 5871887
    Abstract: The invention comprises an apparatus for use in making a web of papermaking fibers. The apparatus comprising: a dewatering felt layer having a first web facing felt surface at a first elevation and a second oppositely facing felt surface, and a web patterning layer comprising a photosensitive resin. The patterning layer penetrates the first felt surface, and extends from the first felt surface to form a web contacting top surface at a second elevation different from the first elevation. The invention also comprises a method of forming a web support apparatus having a felt layer and a web patterning layer.
    Type: Grant
    Filed: March 20, 1997
    Date of Patent: February 16, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Paul Dennis Trokhan, Dean Van Phan
  • Patent number: 5857498
    Abstract: The forming fabric has a top machine side and an opposing bottom paper side and comprises machine direction (MD) yarns and cross machine direction (CMD) yarns interwoven in a repeating pattern of multiple repeating units. The repeating unit of the pattern comprises: paper side CMD yarns forming the paper side of the fabric; half as many machine side CMD yarns forming the machine side of the fabric; and MD yarns interwoven with both the paper side CMD yarns and the machine side CMD yarns. Within the repeating unit, each of the MD yarns passes beneath at least two paper side CMD yarns to form first and second paper side knuckles. Each of the MD yarns also passes above two machine side CMD yarns to form first and second machine side knuckles, which are separated from one another by at least two machine side CMD yarns.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: January 12, 1999
    Assignee: Weavexx Corporation
    Inventors: Ednaldo Vilar Barreto, Robert G. Wilson
  • Patent number: 5853547
    Abstract: The present invention is an improved 7,3-broken twill, TAD fabric for use in the formation of a paper web. The present invention is also a process of using this fabric to produce a paper product having high bulk and absorbency. Finally, the present invention is the paper product produced in a TAD process using this fabric.
    Type: Grant
    Filed: October 18, 1996
    Date of Patent: December 29, 1998
    Assignee: Asten, Inc.
    Inventors: Frederick W. Ahrens, Thomas Gulya, Gary L. Worry, Walter P. Wright
  • Patent number: 5839479
    Abstract: A papermaking fabric for increasing bulk in the paper sheet during forming and/or through air drying which is comprised of a system of MD filaments selectively interwoven with a system of CD filaments having at least smaller and larger filament subsets.
    Type: Grant
    Filed: March 26, 1997
    Date of Patent: November 24, 1998
    Assignee: Asten, Inc.
    Inventors: Thomas Gulya, Samuel H. Herring, Walter P. Wright
  • Patent number: 5837102
    Abstract: A paper-making machine for forming a paper web from a fiber suspension includes rotatable rolls, an endless forming fabric, and a headbox configured to receive and discharge the fiber suspension. The endless forming fabric is carried by the rolls and is configured to directly carry the fiber suspension discharged by the headbox. The forming fabric includes a monolithic plastic sheet with water drainage holes therein. The sheet has an embossed outer surface with generally rounded projections and generally rounded depressions. Each of the projections has a height of at least 125 microns. The embossed outer surface is configured for contacting the fiber suspension. The embossed outer surface of the sheet is formed using a calender having at least one embossing roll.
    Type: Grant
    Filed: March 12, 1998
    Date of Patent: November 17, 1998
    Assignee: Voith Sulzer Paper Technology North America, Inc.
    Inventor: Edwin X. Graf
  • Patent number: 5826627
    Abstract: A composite forming fabric in which the woven paper and machine side layers are interconnected by pairs of intrinsic weft binder yarns which interweave with the paper side layer to occupy an unbroken weft path. Each member interweaves sequentially with the warps of the paper side layer and with at least one warp of the machine side layer. Each part of the unbroken weft path is separated from adjacent parts by at least one paper side layer warp yarn. The unbroken weft path is the same, or different, to the weft path of the immediately adjacent paper side layer weft yarns. This arrangement overcomes the paper side layer surface imperfections, which cause an unacceptable level of marking, hitherto associated with the use of intrinsic weft binder yarns in composite fabrics.
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: October 27, 1998
    Assignee: JWI Ltd.
    Inventors: Ronald H. Seabrook, Dale B. Johnson, Derek G. Chaplin, Rex Barrett
  • Patent number: 5806569
    Abstract: A papermaking forming fabric having a single layer of machine direction filaments interwoven with smaller and larger diameter cross direction filaments, the larger diameter filaments forming a wear surface on the machine side of the fabric.
    Type: Grant
    Filed: March 26, 1997
    Date of Patent: September 15, 1998
    Assignee: Asten, Inc.
    Inventors: Thomas Gulya, Samuel H. Herring, Walter P. Wright
  • Patent number: 5776313
    Abstract: Continuous belts used on paper making machines are made of alternating aliphatic polyketones. The belts have excellent dimensional stability, are hydrolytically stable, and have good resistance to abrasive wear.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: July 7, 1998
    Assignee: Shell Oil Company
    Inventors: George Bakis, John Edmond Flood
  • Patent number: 5641402
    Abstract: A disc filter used in the pulp and paper industry meets modern requirements by axially dividing the tank and shaft (with the flow channels) into at least two separate and distinct portions, so that the treatment of pulp in several different stages using the same disc filter is possible.
    Type: Grant
    Filed: August 23, 1995
    Date of Patent: June 24, 1997
    Assignee: Ahlstrom Machinery Oy
    Inventors: Raimo Kohonen, Ari Pelkio
  • Patent number: 5624790
    Abstract: A backside textured papermaking belt is disclosed which is comprised of a framework and a reinforcing structure. The framework has a first surface which defines the paper-contacting side of the belt, a second surface opposite the first surface, and conduits which extend between first and second surfaces of the belt. The first surface of the framework has a paper side network formed therein which defines the conduits. The second surface of the framework has a backside network with passageways that provide surface texture irregularities in the backside network. The papermaking belt is made by applying a coating of photosensitive resinous material to a reinforcing structure which has opaque portions, and then exposing the photosensitive resinous material to light of an activating wavelength through a mask which has transparent and opaque regions and also through the reinforcing structure.
    Type: Grant
    Filed: December 20, 1995
    Date of Patent: April 29, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Paul D. Trokhan, Glenn D. Boutilier
  • Patent number: 5597450
    Abstract: A paper machine dryer fabric includes hollow thermoplastic monofilaments to replace at least a portion of the wefts, also known as cross-machine direction strands. Fabrics including such monofilaments may be either a woven fabric, or a spiral fabric. The deformable nature of the hollow monofilaments decreaes the air permeability of the fabric, and in the case of spiral fabrics, improves monofilaments retention within the helical coils between the hinge yarns. The hollow monofilaments have a solidity in the range of from about 60% to about 75%. A suitable thermoplastic is polyethylene terephthalate. Hollow monofilaments do not have the disadvantages of other deformable yarns, such as spun yarns, multifilament yarns or plied monofilament yarns, each of which tend to hold and entrap within their structure both water and foreign matter.
    Type: Grant
    Filed: October 24, 1994
    Date of Patent: January 28, 1997
    Assignee: JWI Ltd
    Inventors: Samuel Baker, James Harrison
  • Patent number: 5571590
    Abstract: This invention pertains to papermaking felts, methods of making such felts, methods of using the felts, and methods of making paper using such felts. A felt of the invention contains at least one substrate web having a fuse-bonded joint extending across the width of the felt. The joint is preferably formed by superposing, onto each other, end portions of a flat-woven substrate web element, with the end portions extending away from the ends in a common direction, and concurrently severing the ends from the end portions, and fuse bonding the end portions to each other, along a common cut line.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: November 5, 1996
    Assignee: Appleton Mills
    Inventors: Gary V. Schultz, Dennis J. Le Gault
  • Patent number: 5554467
    Abstract: A backside textured papermaking belt is disclosed which is comprised of a framework and a reinforcing structure. The framework has a first surface which defines the paper-contacting side of the belt, a second surface opposite the first surface, and conduits which extend between first and second surfaces of the belt. The first surface of the framework has a paper side network formed therein which defines the conduits. The second surface of the framework has a backside network with passageways that provide surface texture irregularities in the backside network. The papermaking belt is made by applying a coating of photosensitive resinous material to a reinforcing structure which has opaque portions, and then exposing the photosensitive resinous material to light of an activating wavelength through a mask which has transparent and opaque regions and also through the reinforcing structure.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: September 10, 1996
    Assignee: The Proctor & Gamble Company
    Inventors: Paul D. Trokhan, Glenn D. Boutilier
  • Patent number: 5515779
    Abstract: A method for producing a printed piece of paper wherein the paper is formed by forming fabric having knuckles disposed thereon. Color printing screens are provided having diagonals for depositing ink arranged at angles of typically 45.degree. or more. The printing screens are applied to the paper after ensuring that the angles of the diagonals in the printing screens are different from angles of areas of high and low density in the paper formed by the forming fabric knuckles when the printing screens overlie the piece of paper, whereby to provide more uniform print on the piece of paper.
    Type: Grant
    Filed: October 13, 1994
    Date of Patent: May 14, 1996
    Assignee: Huyck Licensco, Inc.
    Inventor: Roger Danby
  • Patent number: 5514472
    Abstract: The dirt-repellent monofilament with a toughness of at least 36 cN/tex and an extension of under 44% has a soiling index A1>2 after five soiling and cleaning cycles. To manufacture the dirt-repellent monofilaments, a copolymer with a melting point of 255.degree. to 275.degree. C. and consisting of alkenes and perfluoroalkenes is added to a polymer melt of polythylene terephthalate before extrusion. The dirt-repellent monofilament is advantageously used in the manufacture of cleaning filters for the dry section of a paper machine, i.e. paper machine fabric filters. It may also be used to produce fabrics for general use as technical fabrics which have to be cleaned in difficult conditions.
    Type: Grant
    Filed: August 10, 1995
    Date of Patent: May 7, 1996
    Assignee: Rhone-Poulenc Viscosuisse S.A.
    Inventors: Halim Baris, Erwin Lerch
  • Patent number: 5514523
    Abstract: A backside textured papermaking belt is disclosed which is comprised of a framework and a reinforcing structure. The framework has a first surface which defines the paper-contacting side of the belt, a second surface opposite the first surface, and conduits which extend between first and second surfaces of the belt. The first surface of the framework has a paper side network formed therein which defines the conduits. The second surface of the framework has a backside network with passageways that provide surface texture irregularities in the backside network. The papermaking belt is made by applying a coating of photosensitive resinous material to a reinforcing structure which has opaque portions, and then exposing the photosensitive resinous material to light of an activating wavelength through a mask which has transparent and opaque regions and also through the reinforcing structure.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: May 7, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Paul D. Trokhan, Glenn D. Boutilier
  • Patent number: 5503715
    Abstract: Disclosed herein is a cellulosic fibrous structure having multiple regions distinguished from one another by basis weight. The structure is a paper having an essentially continuous high basis weight network, and discrete regions of low basis weight which circumscribe discrete regions of intermediate basis weight. The cellulosic fibers forming the low basis weight regions may be radially oriented relative to the centers of the regions. The paper may be formed by using a forming belt having zones with different flow resistances. The basis weight of a region of the paper is generally inversely proportional to the flow resistance of the zone of the forming belt, upon which such region was formed. The zones of different flow resistances provide for selectively draining a liquid carrier having suspended cellulosic fibers through the different zones of the forming belt.
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: April 2, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Paul D. Trokhan, Dean V. Phan, Larry L. Huston