Projecting Particles In A Moving Gas Stream Patents (Class 264/121)
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Publication number: 20100091202Abstract: A glass fibre reinforced plastic substrate provides the mechanical strength and thermal properties for use e.g. in flat display devices. There is a trend towards flat display devices comprising flexible displays. Such display devices also need flexible substrates, and a method to produce such flexible substrates cost effectively. To make such flexible display by conventional manufacturing technologies that have been applied to produce the LCD displays, glass substrates need to be replaced with elastic substrate materials that are deformable even at room temperatures. The elastic substrate must have mechanical durability to offer flexibility desired. Now there is developed a method for producing a glass fibre reinforced plastic substrate so that the glass fibres and binding material are arranged to form a layer with a certain content of glass fibres and then the layer is arranged to be pressed to a thickness that is desirable to the substrate sheet.Type: ApplicationFiled: June 22, 2006Publication date: April 15, 2010Inventor: Toni P. Östergård
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Patent number: 7687012Abstract: A method and apparatus including means for delivery of at least one high speed composite stream of polymer fibers and secondary material. The method and apparatus also includes a movable collection device which intersects in the composite stream of polymer fibers and secondary material and at least one non-contact deflector to redirect at least a portion of the composite stream.Type: GrantFiled: August 30, 2005Date of Patent: March 30, 2010Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Susan J. Daniels, Sara J. Schewe, Randall W. Foss, David P. Hunter, Michael A. Schmidt
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Patent number: 7682554Abstract: An apparatus for forming a shaped fibrous nonwoven structure including a delivery system adapted to provide a high speed composite stream comprising thermoplastic polymer fibers and a secondary material. The apparatus also includes a movable collection device having a collection surface which intersects the composite stream, and at least one deflector to mechanically redirect at least a portion of the composite stream. Further the deflector moves in synchronization with the movable collection device, such that the composite stream is collected on the collection surface forming a fibrous nonwoven structure having at least one non-linear edge.Type: GrantFiled: August 30, 2005Date of Patent: March 23, 2010Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Michael B. Venturino, Seth M. Newlin, Paul E. Olmstead, Susan J. Daniels, Sara J. Schewe
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Patent number: 7622062Abstract: A method for producing three-dimensional parts made of fiber material using a mold, comprising a bottom mold, the inner side of which determines the contour of the bottom side of the molded part and a top mold whose inner side determines the contour of the top side of the molded part. The bottom mold and/or the top mold have holes enabling the passage of air. Fibers are blown into the interior of the closed mold with the aid of an air current and are deposited in the inner sides of the bottom mold and the top mold, whereby a blank of fiber material is formed, the fibers bound together by a bonding agent, whereupon the blank is hardened into a molded part. A device for the production of three-dimensional molded parts comprises a mold having at least one inlet hole for blowing in the fiber material. The molded part has areas with different thickness.Type: GrantFiled: April 2, 2004Date of Patent: November 24, 2009Assignee: Fiber Engineering, GmbHInventor: Egon Forster
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Patent number: 7594618Abstract: A method of applying dry and substantially thermal and acoustical insulation by spraying an air entrained stream of high velocity pils into cavities, including vertical wall cavities, without having to use any insulation securing means is disclosed. A nozzle system is used that comprises a shredder section for reducing the size of the pieces of insulation to pil size and an accelerator section for increasing the velocity of a stream of air suspended pils for improved just-installed insulation integrity or strength.Type: GrantFiled: January 26, 2005Date of Patent: September 29, 2009Assignee: Johns ManvilleInventor: Thomas John Fellinger
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Patent number: 7491354Abstract: A forming box for use in dry forming of a mat of fibrous material, and a forming method. The forming box comprises a housing with an open bottom providing direct access for fibers onto an underlying forming wire and a vacuum box underneath said forming wire; an inlet for supplying fiber material into the inside of the housing; and a number of fiber separating rollers in one or more rows in the housing between the fiber inlet and the housing bottom. An endless belt screen is provided inside the housing having an upper run between two rows of spike rollers and a lower run closer to the open bottom of the forming box. Fiber clumps captured on the lower run of the belt screen are conveyed above fiber separating rollers and are released from the upper run of the belt screen into contact with the fiber separating rollers.Type: GrantFiled: November 5, 2004Date of Patent: February 17, 2009Assignee: Formfiber Denmark APSInventor: Carsten Andersen
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Publication number: 20080264554Abstract: There is provided a protective media and a method of manufacturing the same. In one aspect, the protective media includes a porous dielectric carrier, an active agent incorporated in the porous dielectric carrier, and an electrostatic charge across at least a portion of the porous dielectric carrier. This innovative media is capable of eradicating microorganisms and/or toxins more efficiently than prior art solutions and can also self-sterilize.Type: ApplicationFiled: July 3, 2008Publication date: October 30, 2008Applicant: Triosyn Holding Inc.Inventor: Pierre Jean Messier
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Patent number: 7435312Abstract: An improved paper and the process of making an improved paper web are disclosed. The improved paper is characterized as having two regions; one is a network (or open grid) region and the other is a plurality of domes. At least a portion of either region of the paper web contains a bonding material that penetrates at least partially through the paper's thickness.Type: GrantFiled: November 9, 2005Date of Patent: October 14, 2008Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Jeffrey Dean Lindsay, Michael Alan Hermans, Mike Thomas Goulet, Mark John Hassman, Maurizio Tirimacco, Jeffrey Janne Johnson, Rebecca Catherine Mohr
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Publication number: 20080245885Abstract: A nozzle assembly for conveying a flow of particles of insulation material suspended in air to a substrate to form an insulation product on the substrate is provided, including: a nozzle body defining a flow path for accommodating the flow of particles of insulation material suspended in air, wherein the nozzle body comprises an inlet for receiving the flow of particles of insulation material suspended in air; an outlet for propelling the flow from the nozzle assembly; and at least one expansion section in which the cross-sectional area of the nozzle body expands in the direction of flow, the at least one expansion section being effective to reduce the velocity of the particles flowing therethrough; and at least one binder outlet for providing a binder to the flow of particles of insulation material propelled from the outlet.Type: ApplicationFiled: April 6, 2007Publication date: October 9, 2008Inventor: Daniel Elden Near
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Patent number: 7357888Abstract: A method of making an article includes the steps of feeding fiber yarn, bundle or roving into a chopping device, chopping the fiber yarn, bundle or roving into fiber segments, texturizing the fiber segments, simultaneously introducing the fiber segments and a binder into a mold and molding the article.Type: GrantFiled: December 24, 2002Date of Patent: April 15, 2008Assignee: Owens Corning Intellectual Capital, LLCInventor: Rajendran S. Michael
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Super absorbent distribution system design for homogeneous distribution throughout an absorbent core
Patent number: 7303708Abstract: A super absorbent distribution system for homogenous distribution throughout an absorbent core is disclosed. A super absorbent material is injected into a stream of absorbent fluff at an opposite direction to that of the stream of absorbent fluff. The super absorbent is blasted into the peak and outer surface of a cone shaped super absorbent barrier. The oncoming absorbent fluff also contends with a similarly shaped absorbent fluff barrier. The super absorbent material slows down as it hits the super absorbent barrier and oncoming fluff, then stops, then reverses direction and flows with the absorbent fluff as a homogenous distribution of super absorbent material and absorbent fluff. The combination of super absorbent material and absorbent fluff may encounter baffle members to further distribute the super absorbent material and absorbent fluff.Type: GrantFiled: April 8, 2005Date of Patent: December 4, 2007Assignee: Curt G. Joa, Inc.Inventors: Robert E. Andrews, Chris J. Nelson -
Patent number: 7288338Abstract: A binderless glass fiber mat suitable for use as a separator for valve regulated (“recombinant”) lead acid (“VRLA”) batteries is disclosed. The separator is produced by a dry process by collecting the fibers from fiberizing apparatus, without subjecting them to a wet paper making or other post forming process, and selecting portions of the collected fibers which are sufficiently uniform in thickness and grammage for use as battery separators. The fibers can be entwined to produce a superior separator material. Additives can be introduced during the collection process to enhance the properties of the separator. A battery comprises at least one stack of alternating positive and negative plates, with the separator between adjacent plates. Separators according to the invention are significantly more resilient and have longer fibers than otherwise identical separators made from different samples of the same glass fibers, but by a conventional wet paper making process.Type: GrantFiled: November 23, 2004Date of Patent: October 30, 2007Assignee: KVG Technologies, Inc.Inventor: George Zguris
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Patent number: 7276193Abstract: A method for forming an ultrafine particle brittle material at low temperature which includes the steps of applying a mechanical impact force or a pressure to a ultrafine particle brittle material so as to have a percentage in the ultrafine particles having a primary particle diameter less than 50 nm in all the particles of 10 to 90%, subjecting the resulting brittle material to a heat treatment at a temperature not higher than the sintering temperature thereof so as to have the above percentage of 50% or less, and then applying a mechanical impact force not less than the crushing strength to the resultant material, to crush the material, thereby joining the ultrafine particles in the brittle material with one another, to form a formed article of the ultrafine particle brittle material; and an ultrafine particle brittle material for use in the method.Type: GrantFiled: May 28, 2003Date of Patent: October 2, 2007Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Jun Akedo, Maxim Lebedev
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Patent number: 7244387Abstract: An apparatus and a method for manufacturing an absorbent core for an absorbent product containing a first material and a second material dispersed throughout at least a portion of said first material. A rotating forming wheel produces the absorbent core in a mold provided on its circumferential surface and the forming wheel has a rotating air pervious belt along at least a part of the circumferential surface for keeping fibers and particles of the formed layer or layers in place on the wheel.Type: GrantFiled: January 19, 2005Date of Patent: July 17, 2007Assignee: SCA Hygiene Products ABInventors: Gunnar Larsson, Goran Forsbring
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Patent number: 7198739Abstract: Preform for carbon-carbon composite part (55) comprising multiple layers of fibrous mats (51, 52, 53) wherein each mat (51, 52, 53) comprises random carbon-containing fibrous matrix (11) having polymeric binder distributed therein and wherein adjacent mats (51, 52, 53) are bound together by additional polymer binder, stitching, and interlocking tabs. Also, method of manufacturing thick multi-layer composite preform, by: providing optionally reconfigurable tool including perforated screen through which vacuum can be drawn; delivering chopped fibers (b) to the tool while drawing vacuum therethrough to form fibrous object; delivering binder (c) to the fibrous object; melting or curing the binder (d) to make a fibrous mat (51, 52, 53); assembling plurality of the fibrous mats (51, 52, 53) and additional binder into the shape of a preform (e); and heat-pressing the resulting mat assembly (f) into finished thick preform (55).Type: GrantFiled: May 25, 2004Date of Patent: April 3, 2007Assignee: Honeywell International Inc.Inventors: Mark L. La Forest, Nabil Abu Gharbieh, Raymond J. Cipra, Alan E. Fatz, Thomas H. Siegmund
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Patent number: 7198235Abstract: A method and apparatus for the transmission of information between a track (11, 12) and a vehicle (13, 14) located on the track in a model railroad system, whereby when electrical contact between the vehicle and track, such as between a wheel of the vehicle and a rail of the track, is lost, a capacitor that then exists between the vehicle and the track is used for the transmission of information.Type: GrantFiled: December 31, 2003Date of Patent: April 3, 2007Assignee: Lenz Elektronik GmbHInventor: Bernd Lenz
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Patent number: 7182837Abstract: A process and method which ‘locks in’ three-dimensional texturing added to a paper web by virtue of an adhesive material which is printed onto the surface of the web is generally disclosed. The adhesive may be applied to the web either before, during, or after the web is molded to increase the surface texture. The adhesive may be applied at relatively low pressure so as to preserve surface texture without significant deformation of the web. The cured adhesive material inhibits the web from reassuming a two-dimensional state or may contribute additional texture by rising above the surface of the web. This process may not only increase the bulk of the web when dry and wet, but also increase the wet resiliency, the wet strength, and the tactile properties of the web.Type: GrantFiled: November 27, 2002Date of Patent: February 27, 2007Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Fung-Jou Chen, Jeffrey D. Lindsay, Thomas F. Hunt, Maurizio Tirimacco, John J. Urlaub
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Patent number: 7128973Abstract: Expanded polystyrene particles having a polyvinyl acetate resin-based functional skin layer, and a process thereof are provided. The particle includes an inner expanded polystyrene layer; and a functional skin layer. The inner expanded polystyrene layer is formed by heating and expanding an expandable polystyrene bead or pellet, and the functional skin layer is formed by coating the surface of the inner expanded polystyrene layer with a functional coating composition having 10 to 99 wt % of a vinyl acetate based polymer and 0.1 to 90 wt % of at least one functional additive.Type: GrantFiled: January 30, 2004Date of Patent: October 31, 2006Inventor: Bong-Kuk Park
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Patent number: 7001167Abstract: Apparatus for forming an air formed fibrous web has a form member on which fluent fibrous material is deposited in an air formed deposition process. The fibrous web may be used as an absorbent core of an absorbent article. The form member has a forming surface with a pocket for making a thicker portion of the fibrous web such as for a liquid holding formation of the absorbent core. The pocket has a bottom surface which is shaped so that additional material will be deposited in the pocket. A form member and an absorbent core made using the apparatus are also disclosed.Type: GrantFiled: July 30, 2002Date of Patent: February 21, 2006Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Michael B. Venturino, Susan J. Daniels, Steven P. Milanowski
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Patent number: 6946043Abstract: A method for manufacturing a padded body composed of a skin layer formed in a bag shape and filler made of a granular or fragmental material padded into the skin layer comprising the steps of: mixing the filler and a water reactive binder; padding a mixture of the filler and the binder into the skin layer to form a padded body; and passing steam through the padded body. The binder reacts to the steam so that the filler adheres each other and adheres to an inner surface of the skin layer.Type: GrantFiled: February 17, 2000Date of Patent: September 20, 2005Assignee: Namba Press Works Co., Ltd.Inventors: Taro Ogawa, Yasumasa Senoo, Yasuyuki Toda, Mitsuo Katayama, Takahiro Hara
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Patent number: 6939492Abstract: Disclosed herein is a method for making fibrous web materials which may be used in or as absorbent core materials for absorbent products. The method involves providing loose fibers, entraining the fibers in a moving airstream, treating the fibers with an energy-activatable pre-polymer composition and subjecting the fibers to activation energy to initiate cross-linking of the composition. The fibers are collected on forming surface to form a fibrous web. The fibers may be treated with the composition while entrained in the moving air or after being collected on the forming surface, or in an alternate embodiment by treating with the composition a mat of fibers from which the loose fibers are provided. The fibrous web material may comprise cellulosic fibers such as pulp, and/or synthetic fibers such as staple fibers, and/or super absorbent materials.Type: GrantFiled: December 26, 2002Date of Patent: September 6, 2005Assignee: Kimberly-Clark Worldwide, Inc.Inventors: David Martin Jackson, Jason Sybren Fairbanks, John Gavin MacDonald
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Patent number: 6848894Abstract: An apparatus and a method for preparing an absorbent article is disclosed. The apparatus has at least two forming surfaces which differ in terms of air permeability to allow the selective placement of fibrous material. The forming surface comprises a perforated forming screen. The forming screen has multiple zones with different amounts of open area through which air may pass. Particles carried in the air which flows through the open area are deposited on different zones of the forming screen resulting in different basis weights corresponding to the different air permeabilities. The apparatus and method thus provide an article having optimal zoned absorbency in a cost-effective manner.Type: GrantFiled: February 27, 2001Date of Patent: February 1, 2005Assignee: Paragon Trade Brands, Inc.Inventors: Andrew Baker, Doug Frederisy
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Publication number: 20040235631Abstract: The invention relates to a method for producing a nonwoven fiber composite for the manufacture of filters in the tobacco industry, wherein the method feeds separated fiber materials to a fluidized bed and the separated filter material inside the fluidized bed are transported to a rod-forming device, essentially by a transport air flow flowing in the direction of the rod-forming device and the filter material is compiled on the rod-forming device prior to forming the compacted fiber filter elements.Type: ApplicationFiled: April 2, 2004Publication date: November 25, 2004Applicant: HAUNI Maschinenbau AGInventors: Alexander Buhl, Jann De Boer, Sonke Horn, Irene Maurer, Thorsten Scherbarth, Stephan Wolff, Peter-Franz Arnold
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Patent number: 6821672Abstract: A binderless glass fiber mat suitable for use as a separator for valve regulated (“recombinant”) lead acid (“VRLA”) batteries is disclosed. The separator is produced by a dry process by collecting the fibers from fiberizing apparatus, without subjecting them to a wet paper making or other post forming process, and selecting portions of the collected fibers which are sufficiently uniform in thickness and grammage for use as battery separators. The fibers can be entwined to produce a superior separator material. Additives can be introduced during the collection process to enhance the properties of the separator. A battery comprises at least one stack of alternating positive and negative plates, with the separator between adjacent plates. Separators according to the invention are significantly more resilient and have longer fibers than otherwise identical separators made from different samples of the same glass fibers, but by a conventional wet paper making process.Type: GrantFiled: October 22, 2001Date of Patent: November 23, 2004Assignee: KVG Technologies, Inc.Inventor: George C. Zguris
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Patent number: 6818166Abstract: Method of forming a fiber web (210) intended for use in absorbent products, such as sanitary towels, by air-laying fibers. Separate air flows containing fibers are fed to a number n of different mat-forming wheels (160, 170, 180), where n is a whole number which is at least 2. Separate web layers (161, 171, 181) are formed on each mat-forming wheel. The fiber web (210) is formed by virtue of said web layers being combined downstream of the mat-forming wheels to form a common fiber web which is imparted very great manufacturing accuracy by virtue of the manufacturing method. The manufacturing speed and thus the web speed can be very high, and the desired manufacturing accuracy at the web speed concerned is achieved by selecting a sufficiently great number n of mat-forming wheels. The invention also relates to a fiber web manufactured according to the method.Type: GrantFiled: April 19, 2002Date of Patent: November 16, 2004Assignee: SCA Hygiene Products ABInventors: Gunnar Edwardson, Claes Göransson
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Patent number: 6814911Abstract: A method and apparatus for incorporating an additive material into a fibrous web to be bonded into an elongated porous element by heating the fibers in a confined forming die with a heating medium adapted to bond the fibers to each other at spaced points of contact. An additive material is admixed with the heating medium and then the web of fibers is contacted with the heating medium/additive material mixture whereby the heating medium simultaneously carries the additive material into the fibrous web and heats the fibers to bond them into the porous element. The apparatus includes an adjustable venturi assembly through which the heating medium passes to create a pressure gradient adapted to aspirate a quantity of additive material and entrain a metered quantity of same in the heating medium.Type: GrantFiled: March 11, 2003Date of Patent: November 9, 2004Assignee: Filtrona Richmond, Inc.Inventors: Bennett C. Ward, Raymond J. Nelson, Roy B. Pugh, Jackie F. Payne, Jr., Brian V. Nutter, Michael W. Spencer
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Patent number: 6808664Abstract: Method for forming an air laid fibrous web, wherein an air born fiber stream is laid on a web shaped forming member, such as a wire, and the air laid fibrous web is bonded together. The air laid fibrous web is fed between two web-shaped forming members and bonding of the fibrous web takes place either when this is located between the two web-shaped forming members or immediately after one forming member has left the fibrous web.Type: GrantFiled: May 22, 2001Date of Patent: October 26, 2004Assignee: SCA Hygiene Products ABInventors: Magnus Falk, Anna Månsson
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Patent number: 6770232Abstract: In addition to a loading apparatus (10) for loading material through the upper mouth of the mold cavity (6), the unit comprises a blower device (30) for blowing air, means for moving said device while held a short distance from the upper surface of the material (B′) loaded into the mold cavity, such as to lift in a gauged manner a thin layer of material from the top thereof, and means (51, 55) for collecting the material lifted by the blower device (30), in order to remove it from the mold cavity. In particular, the blower device (30) comprises a relatively narrow, long blowing port (31) arranged to emit an air jet in the form of a thin sheet extending in a horizontal direction, and means (33, 34) for feeding compressed air to said blowing port (31), which is moved while maintained a short distance from the upper surface of the material (B′) loaded into the mold cavity (6) in order to lift a thin gauged layer of material.Type: GrantFiled: July 25, 2001Date of Patent: August 3, 2004Assignee: L.B. - Officine Meccaniche - S.p.A.Inventor: Giorgio Prodi
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Patent number: 6758998Abstract: A method for filling a receiver with expanded fibers includes the steps of feeding at least one bundle of fibers from at least one roving; introducing the at least one bundle into a portable tool having a manual gripping element, a spray nozzle, an air supply device connected for supplying air to the nozzle, an extraction system configured to hold the at least one bundle and feed the at least one bundle to the nozzle, and an inlet guide positioned to guide the at least one bundle to the extraction system; and using the air supply device to expand the fibers of the at least one bundle in said spray nozzle, and spray the expanded fibers into the receiver.Type: GrantFiled: February 19, 2002Date of Patent: July 6, 2004Assignee: Saint-Gobain Vetrotex FranceInventors: Jean-Paul Debalme, Gilles Rocher
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Patent number: 6743313Abstract: Relative coarse flakes fabricated from used and manufacturing scrap asphalt shingle material are finish processed into ground cover and/or erosion control products. Processing of the flakes include (i) softening the surface of the flakes, (ii) embedding a surface treatment material into the softened surface of the flakes, and either (iii) supplying the flake as loose ground cover, or (iv) compressing the flakes into a portable mat.Type: GrantFiled: April 18, 2001Date of Patent: June 1, 2004Assignee: American Builders & Contractors Supply Company, Inc.Inventor: Donald J. Mischo
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Patent number: 6726461Abstract: The invention relates to a screen pipe to be used in dry forming of web material in order to distribute fiber material blown into the screen pipe through a jacket (2) of the pipe onto a wire arranged to move under the pipe. The fiber material provided inside the screen pipe is made to move for example by means of a spiked roll placed inside the pipe, so that the movement of the fiber material has both a radial and a tangential component with respect to the jacket (2) of the screen pipe. The jacket comprises on its inner surface profiled grooves (8) in the pipe's axial direction. The edge (8a) of the profiled groove is situated downstream with respect to the tangential component of the fiber flow. The upstream edge (8b) of the groove is positioned downstream with respect to the tangential component of the fiber flow. The bottoms of the profiled grooves comprise holes or slots (9) through which the fibers are discharged from the screen pipe.Type: GrantFiled: November 19, 2001Date of Patent: April 27, 2004Assignee: BKI Holding CorporationInventors: Paavo Hyvarinen, Heikki Niranen
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Patent number: 6709613Abstract: A nonwoven web contains an even distribution of its composite materials by the separate application of particulate material such as superabsorbent particles into a forming head outside the air stream for deposition of thermoplastic fibers in the forming head. The thermoplastic fibers are distributed by air entertainment through tubular forming screens having rotary distribution members therein. The particulate absorbents are generally placed in the forming box by distribution units which may have metering devices and outlet chutes extending into the forming head.Type: GrantFiled: December 21, 2001Date of Patent: March 23, 2004Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Leon Eugene Chambers, Jr., Eric Edward Lennon, Gabriel Hamman Adam, Jerome Joseph Schwalen, Christopher Andrew Laslie, H. Edmund Clark
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Patent number: 6706129Abstract: There is disclosed a method for manufacturing particle deposited body comprising supplying, under sucking condition, particles entrained by air on a continuous carrier sheet which is running at a prescribed direction to deposit the particles on the carrier sheet, thereby obtaining a particle deposited body comprising the particles and the carrier sheet, the carrier sheet having an air-permeability of 4.0 seconds/(300 ml·32 pcs.) or less.Type: GrantFiled: December 1, 2000Date of Patent: March 16, 2004Assignee: Kao CorporationInventors: Kenji Ando, Kenichi Sato, Yasuhiro Umeki, Hiroshi Hirasawa, Kazuyuki Maeda
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Publication number: 20030234468Abstract: An absorbent material is provided with improved characteristics. A process is provided for making the absorbent material. A web is formed with at least one layer of absorbent material, and it may include a mixture of cellulosic fibers and superabsorbent material. The moisture content of the web is increased so as to increase the web density. Then, the web is compacted at an elevated temperature to further increase the web density and preferably to also effect hydrogen bonding within the web. In one embodiment a tissue layer is provided, is wetted with water, and is bonded to the layer of absorbent material.Type: ApplicationFiled: March 25, 2003Publication date: December 25, 2003Inventors: Krishnakumar Rangachari, Erol Tan, Steven Scott Harlen, Kimberly W. Sumner, David S. Varney
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Patent number: 6660215Abstract: This invention relates to a plant used to form an air-laid web of fibers and a powder on a running endless forming wire that is air-permeable and operates mainly horizontally, wherein the plant includes a suction unit positioned under the forming wire; a forming head with a perforated base positioned above the forming wire; at least one fiber feed duct using air flow from the fiber source to feed the fiber into the forming head; and at least one powder feed duct to feed powder by means of air flow from the powder source into the forming head.Type: GrantFiled: April 6, 2001Date of Patent: December 9, 2003Assignee: M&J Fibretech A/SInventor: Birger Elmgaard Sørensen
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Patent number: 6656412Abstract: A method and apparatus for compacting particles or granules in discrete cavities spaced along an article or articles such as a cigarette filter rod moved underneath the compacting system. The compacting system can be provided with spaced lugs or other protrusions that selectively compact particles within cavities, or a smooth outer periphery that results in progressive compaction of the entire article being moved underneath the compaction system. The article having cavities with particles that need to be compacted can be supported on a support rail with side support rails that maintain the shape of the article during the compaction process.Type: GrantFiled: August 17, 2001Date of Patent: December 2, 2003Assignee: Philip Morris IncorporatedInventors: Ahmet Ercelebi, Martin T. Garthaffner, Janet L. Thompson, Steven Frederick Spiers
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Patent number: 6652789Abstract: The method and apparatus for forming composite wood products particularly composite veneer like products which may be intermediate products and laminated to form the final composite product. Strands are fed from a source of supply at a metered rate, entrained in an air stream and carried along a confined path between an entrainment zone and the source of supply. Strands are condensed onto a surface to form a veneer lay-up of at least one layer of strands on the forming surface and this veneer lay-up is carried from the path and deposited onto a collecting surface and later consolidated into a composite product. Entraining air and strands not forming veneer are separated in the supply station, the strands fall onto the supply of strands and energy is added to the separated entraining air and it is returned to the entraining zone.Type: GrantFiled: March 26, 1998Date of Patent: November 25, 2003Assignee: Weyerhaeuser CompanyInventor: Martin Thomas Pearson
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Patent number: 6645407Abstract: A process for making an absorbent composite including absorbent fibers, superabsorbent polymer and, optionally, thermoplastic fibers and other ingredients is provided. The synthesis (i.e., polymerization) of the superabsorbent is completely integrated into the process for forming the absorbent composite. Specifically, the polymerization of superabsorbent is initiated from within a plurality of absorbent and/or thermoplastic fibers, which are then formed into a web. The integrated process eliminates the need for separate manufacture of superabsorbent polymer prior to the fiber forming and web forming processes. Also, the superabsorbent polymer thus formed tends to disperse better and remain adhered to the absorbent and/or thermoplastic fibers, providing a stable and uniform absorbent composite for various end use applications.Type: GrantFiled: December 14, 2001Date of Patent: November 11, 2003Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Stanley R. Kellenberger, David Martin Jackson, Young C. Ko, Dave A. Soerens, Jason M. Laumer, Sridhar Ranganathan
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Publication number: 20030193118Abstract: A method and means of providing stromal repair and improved refractive correction by creating corneal stromal collagen tissue with fibril diameter and spacing that duplicates the optical transmission and diffusion characteristics of natural corneal collagen.Type: ApplicationFiled: April 16, 2003Publication date: October 16, 2003Inventors: Joseph J. Bango, John B. Fenn
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Patent number: 6630088Abstract: A forming receptacle and method for receiving particulate material thereon, and thereby fabricating particulate congregates for use as absorbent cores in personal care absorbent articles is disclosed. The forming receptacle can comprise sheet material defining bottom and side walls of the receptacle. The bottom and side wall have first and second major surfaces and a thickness. The forming receptacle also comprises an array of apertures connecting first and second major surfaces, and further comprises a matrix of sheet material between apertures defining outer perimeters of respective apertures. Respective aperture walls taper from the first major surface toward the second major surface. Aperture walls of adjacent apertures intersect the second major surface without intersecting each other. The array of apertures can be arranged in a series of parallel rows wherein spacing between apertures is substantially constant from row to row.Type: GrantFiled: October 23, 2000Date of Patent: October 7, 2003Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Michael Barth Venturino, Daniel Mark Duhm, Steven John Shimon
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Patent number: 6627130Abstract: A method and apparatus (20) for scarfing a fibrous web (22) can include a scarfing housing (24) which has been provided with a web entrance portion (26), a web exit portion (28), a discharge conduit (30), and an air flow inlet (32, 54). A rotatable scarfing roll (34) can be located in the scarfing housing (24), and in a particular feature, the discharge conduit (30) can be configured with a distinctive conduit angle (36).Type: GrantFiled: April 23, 2001Date of Patent: September 30, 2003Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Joseph Michael Kugler, Michael Barth Venturino, Todd Christy Thoman
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Patent number: 6604926Abstract: In an apparatus for and method of producing absorbent pads from a flock-air mixture which is fed through a feed conduit to a shaping recess carrier to form the respective absorbent pad, the carrier rotates or circulates in a predetermined direction of operation. For excess air in the region of the flock-laying device is to be sucked away in a simple fashion without adversely affecting the process of shaping the absorbent pad, the feed conduit feeding the flock-air mixture to the carrier is branched into at least first and second conduits, the first conduit carrying a first partial flow of the mixture and the second conduit carrying a second partial flow thereof. The first and second conduits are directed on to the carrier in such a way that the second partial flow meets the carrier substantially downstream of the first partial flow in the direction of operation of the carrier.Type: GrantFiled: May 9, 2001Date of Patent: August 12, 2003Assignee: Winkler + Dünnebier AktiengesellschaftInventors: Armin Geisen, Ulrich Mertgen, Sascha Haase
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Patent number: 6596386Abstract: A formaldehyde-free aqueous binder comprising A) a free-radically polymerized polymer containing from 5 to 100% by weight of units derived from an ethylenically unsaturated acid anhydride or from an ethylenically unsaturated dicarboxylic acid whose carboxyl groups can form an anhydride group, and B) an alkanolamine having at least two hydroxyl groups, is useful as binder for renewable raw materials in the form of fibers or chips to produce shaped articles.Type: GrantFiled: March 17, 2000Date of Patent: July 22, 2003Assignee: BASF AktiengesellschaftInventors: Bernd Reck, Eckehardt Wistuba, Wilhelm Friedrich Beckerle, Axel Kistenmacher, Robert Rupaner, Rainer Hummerich
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Publication number: 20030111774Abstract: A process for making an absorbent composite including absorbent fibers, superabsorbent polymer and, optionally, thermoplastic fibers and other ingredients is provided. The synthesis (i.e., polymerization) of the superabsorbent is completely integrated into the process for forming the absorbent composite. Specifically, the polymerization of superabsorbent is initiated from within a plurality of absorbent and/or thermoplastic fibers, which are then formed into a web. The integrated process eliminates the need for separate manufacture of superabsorbent polymer prior to the fiber forming and web forming processes. Also, the superabsorbent polymer thus formed tends to disperse better and remain adhered to the absorbent and/or thermoplastic fibers, providing a stable and uniform absorbent composite for various end use applications.Type: ApplicationFiled: December 14, 2001Publication date: June 19, 2003Inventors: Stanley R. Kellenberger, David Martin Jackson, Young C. Ko, Dave A. Soerens, Jason M. Laumer, Sridhar Ranganathan
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Patent number: 6576172Abstract: A processed material in which a fibrous binder is mixed with chip-like solid matters such as soft urethane foam is quickly injected into a preform mold having a flat molding surface with a uniform filling density, and then fed to a main mold having a molding surface whose shape corresponds to that of a sound-proof product to be formed, so that main molding is performed under sufficient pressure and heat. With the main molding carried out after the preform molding, it is possible to manufacture sound-proof products of excellent quality.Type: GrantFiled: August 14, 2000Date of Patent: June 10, 2003Assignee: Toyoda Boshoku CorporationInventors: Toshiyuki Ario, Takashi Naka, Junichi Hishida, Tetsuyasu Akita, Masaru Suzuki, Yasushi Tsujita, Takuji Kajihara
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Patent number: 6540852Abstract: An apparatus and methods of manufacturing seamless gaskets using expanded intercalated graphite worms, in which an annular die cavity has a central column with a charge inlet in a perimeter wall. Expanded intercalated graphite worms communicate from a source through the charge inlet in the annular die cavity for depositing a charge of expanded intercalated graphite worms within the die cavity. An upper pusher is movable from a first position distally spaced from an open end of the die cavity to a second position within the die cavity for compressing a first charge of expanded intercalated graphite worms. A lower pusher is movable from a first position to a second position during the compressing of the first charge of expanded intercalated graphite worms in the die. The upper pusher causes the lower pusher to move to the second position, so that a second charge of expanded intercalated graphite worms is received in substantially the same volume as the first charge.Type: GrantFiled: July 21, 1998Date of Patent: April 1, 2003Assignee: Acadia Elastomers CorporationInventors: Steven M. Suggs, Reid M. Meyer
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Patent number: 6521152Abstract: A method and apparatus for combining raw fibrous and binding materials in a single mixing step (Step S3), followed by consolidation (Step S5) so as to greatly shorten the overall cycle time to a finished fiber-reinforced composite part. Chopped fibrous materials and binder materials are deposited sequentially onto a belt conveyor (Step S2) so that the materials are successively layered, one on top of each other in a predetermined ratio, and subsequently mixed (Step S3) to achieve uniform dispersion throughout. The mixed materials are then deposited into a rotating mold (Step S4) to further ensure uniform dispersion of fibrous and binder materials. Impregnation of the fibrous materials with the binder material occur in-situ as the uniformly mixed materials are heated and subsequently compacted in the mold (Step S5) to obtain the desired shape of the fiber-reinforced composite part.Type: GrantFiled: March 16, 2000Date of Patent: February 18, 2003Assignee: Honeywell International Inc.Inventors: Michael D. Wood, Mark L. LaForest, Neil Murdie, Dean S. Kriskovich, Vernon R. Hudalla, Thaddeus W. Gonsowski
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Publication number: 20020190410Abstract: A method and apparatus for converting paper fiber articles into molded parts. The method and apparatus are particularly advantageous in converting paper fiber cores, utilized for winding and unwinding large quantities of paper products, into plugs which are inserted into the ends of the paper fiber cores. The method and apparatus are advantageous in that the material of the paper fiber cores is converted into a molded product without requiring repulping or slurrying of the paper fiber material as in conventional paper recycling methods. The method and apparatus also do not require the introduction of adhesives, and the paper fiber material is preferably maintained substantially dry throughout the process and apparatus.Type: ApplicationFiled: August 22, 2001Publication date: December 19, 2002Inventor: John A. Boney
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Patent number: 6494974Abstract: A method of forming a meltblown web having meltblown fibers and particles is provided. The particles are heated to a temperature approximating that of the meltblown fibers as they are being extruded. As a portion of any heated particle impacts the skin of one or more solidifying meltblown fibers, that portion of any heated particle penetrates into one or more solidifying particles. Although a portion of any particle becomes embedded in and retained by one or more meltblown fibers, such surface penetration is generally slight desirably leaving a substantial amount of surface area of any particle available for interaction with any medium to which a web may be exposed.Type: GrantFiled: September 24, 2001Date of Patent: December 17, 2002Assignee: Kimberly-Clark Worldwide, Inc.Inventor: Wilfred Eugene Riddell
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Publication number: 20020180092Abstract: A textured airlaid web is disclosed. The textured web is formed on a three-dimensional fabric under sufficient force to cause the web to conform to the surface of the fabric. The textured web includes, on a minute scale, peak areas and valley areas. The peak areas and valley areas can improved the liquid handling properties of the web. For instance, webs can be produced having improved absorbency characteristics and/or wicking characteristics.Type: ApplicationFiled: December 21, 2001Publication date: December 5, 2002Applicant: Kimberly-Clark Worldwide, Inc.Inventors: Rodney L. Abba, Robert J. Makolin, David J. Nickel, Charles W. Colman, Jeffrey Dean Lindsay, Fung-Jou Chen, Julie Marie Bednarz