With Weaving, Knitting, Braiding, Twisting Or Needling Patents (Class 156/148)
-
Patent number: 6767602Abstract: A fiber preform for manufacturing a brake disk out of composite material is itself manufactured by superposing and bonding together fiber layers. Structural fiber layers (10) are used to form at least a first preform portion that is to constitute the fiber reinforcement of the brake disk core, while the or each preform portion that is to constitute the fiber reinforcement of a friction portion of the brake disk is constituted by a felt (16, 18), at least in its portion adjacent to the friction face.Type: GrantFiled: March 26, 1999Date of Patent: July 27, 2004Assignee: Messier-BugattiInventors: Renaud Duval, Eric Lherm
-
Publication number: 20040112501Abstract: The invention relates to a continuous method of producing a thick, thermoformable, from a thermoplastic material and reinforcing fibers. The inventive method comprises the following steps: A) blending thermoplastic fibers and reinforcing fibers to give a dry-laid blended web, B) consolidating the blended web by needle felting, C) heating the consolidated blended web, and D) compacting it to give a semi-finished product.Type: ApplicationFiled: October 24, 2003Publication date: June 17, 2004Inventor: Harri Dittmar
-
Publication number: 20040103975Abstract: A ball-covering needlefelt produced by needling a fibre batt in a range of angles including a plurality of angles which are non-perpendicular to the plane of the batt. The range of angles is preferably achieved by the batt being curved during needling, the batt conveniently being curved in its direction of travel through the needling machine. The needleboard of the needling machine is preferably correspondingly curved.Type: ApplicationFiled: July 11, 2003Publication date: June 3, 2004Inventor: Alan John Brasier
-
Patent number: 6736915Abstract: A method of forming a lap mat for use in a subsequent molding operation to form a headliner includes forming a first continuous particulate layer having a non-uniform composition; folding the first continuous particulate layer to form a plurality of first layers; and binding the first layers together wherein the first layers cooperate to define a first region having a first material composition, and a second region having a second material composition different than the first material composition.Type: GrantFiled: April 18, 2002Date of Patent: May 18, 2004Assignee: Lear CorporationInventors: Girma Gebreselassie, Harold G. Wolf, Jr.
-
Patent number: 6736916Abstract: A process of forming a nonwoven fabric is disclosed which comprises the steps of forming a precursor web of multicomponent substantially continuous filaments, exposing the precursor web to a hydraulic arrangement treatment to form apertures without causing substantial filament entanglement, and thereafter forming inter-filament bonds and an integrated web. The resulting apertured nonwoven fabrics have good hand and tactile aesthetics and have a great variety of uses including use in absorbent personal care products, garments, medical applications, and cleaning applications.Type: GrantFiled: November 1, 2001Date of Patent: May 18, 2004Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Tara Tryphena Steinke, Jay Sheldon Shultz
-
Publication number: 20040084134Abstract: A process for producing a non-woven composite fabric by water-jet entangling. First, at least two webs are formed. These at least two webs include at least one spunbonded web or meltblown web. Then, the at least two webs are consolidated by water-jet entangling into a non-woven composite fabric. Compared to a conventional process using thermal bonding to consolidate webs, since the present invention uses water-jet entangling to consolidate webs, the non-woven composite fabric produced from the present invention has superior softness. In addition, the non-woven composite fabric produced from the present invention can be further processed to produce various non-woven composite fabric products such as disposable diapers, sanitary napkins, panty liners, and artificial leather, all with superior softness.Type: ApplicationFiled: October 17, 2003Publication date: May 6, 2004Inventor: Jung Chi Tai
-
Publication number: 20040084129Abstract: A composite textile includes a batting layer, a cushion layer, and a face fabric. The batting layer has high melt temperature and low melt temperature fibers. The cushion layer is needled to the batting layer. The face fabric is bonded to the cushion layer by an adhesive. The face material/cushion layer/batting layer is heat set and rolled onto a roll for use in forming composite parts. The composite textile is more readily recyclable when the batting layer, the cushion layer, the adhesive, and the face material are all formed completely from material of the same chemical nature, such as polyolefin, polyester, or the like.Type: ApplicationFiled: October 24, 2003Publication date: May 6, 2004Applicant: Milliken & CompanyInventor: David E. Wenstrup
-
Publication number: 20040077243Abstract: A laminated waterproof bedding article is formed from a first layer of woven fabric, a second layer of woven or non-woven water-absorbent material that includes thermoplastic filaments, a third layer of a waterproof web of thermoplastic polymeric material, and an optional fourth layer of woven or non-woven fabric that includes thermoplastic filaments, the webs being joined along a plurality of spaced-apart seams to form a unitary structure; optional stitching, which can be decorative, intersects the heat-bonded seams.Type: ApplicationFiled: October 17, 2002Publication date: April 22, 2004Inventor: Bruce Strongwater
-
Patent number: 6695941Abstract: A method of forming a nonwoven fabric suitable for metal-finishing buffing operations includes providing a precursor web comprising polyester, staple length fibers, with hydroentanglement of the web effected to impart desired physical characteristics. Hydroentanglement is effected on a three-dimensional, image transfer device having an array of three-dimensional surface elements for patterning the fabric which is formed. Application of a binder composition lends desired durability to the fabric, with the binder composition preferably including a melamine polymeric composition to achieve the desired strength and abrasion resistance.Type: GrantFiled: May 31, 2001Date of Patent: February 24, 2004Assignee: Polymer Group, Inc.Inventors: Herbert P. Hartgrove, Robert Gregory Rabon, Edwin Gregory Browne, Cheryl L. Carlson, Nick Mark Carter
-
Publication number: 20040022979Abstract: The present invention relates to a hose that includes a tubular innermost portion, a reinforcing layer surrounding the innermost portion, and an outermost layer surrounding the reinforcing layer, where the innermost portion includes a wrapped layer. The innermost portion may be only the wrapped layer or may include an inner tube as well. The present invention also relates to a method of manufacturing hose with a wrapped layer. A film is wrapped around an inner tube or a mandrel, followed by the application of a reinforcing layer and an outermost layer.Type: ApplicationFiled: July 31, 2002Publication date: February 5, 2004Inventors: Kenneth Ludwig, Jennifer Malley, Brian Walsh, Scott Zemanek
-
Publication number: 20040003885Abstract: A method and apparatus for forming an improved pultruded and clinched Z-axis fiber reinforced composite laminate structure. The upper and lower skins and the core are pulled automatically through tooling where the skin material is wetted-out with resin and the entire composite laminate is preformed in nearly its final thickness. The preformed composite laminate continues to be pulled into an automatic 3-dimensional Z-axis fiber deposition machine that deposits “groupings of fiber filaments” at multiple locations normal to the plane of the composite laminate structure and cuts each individual grouping such that a extension of each “grouping of fiber filaments” remains above the upper skin and below the lower skin. The preformed composite laminate then continues to be pulled into a secondary wet-out station.Type: ApplicationFiled: November 19, 2001Publication date: January 8, 2004Inventors: David W. Johnson, James M. Hook, Scott A. Garrett, Steven G. Moyers
-
Patent number: 6669799Abstract: A nonwoven fabric, and method of production, are disclosed, wherein the nonwoven fabric comprises textile length fibers with a portion being thermally fusible. The fabric exhibits sufficient durability to withstand commercial dyeing processes, with the resultant fabric finding widespread applicability by virtue of its durability and aesthetic appeal.Type: GrantFiled: January 19, 2001Date of Patent: December 30, 2003Assignee: Polymer Group, Inc.Inventors: Michael J. Putnam, Herbert P. Hartgrove, Robert Gregory Rabon
-
Publication number: 20030213546Abstract: The present invention relates to a nonwoven fabric, and more specifically, to a durable extensible nonwoven fabric comprising a hydroentangled fibrous blend of non-activated fusible fibers and non-fusible fibers, wherein said nonwoven fabric is subjected to compaction at an elevated temperature thereby activating said fusible fibers to bond with the surrounding fibrous composition and rendering said nonwoven fabric suitable for use in medical applications, such as stockings and wraps.Type: ApplicationFiled: March 7, 2003Publication date: November 20, 2003Inventor: Herbert Hartgrove
-
Patent number: 6645420Abstract: A unitary membrane for use in a pressing apparatus includes a pair of longitudinal edge portions and a semipermeable portion having a plurality of intercommunicating pores. The semipermeable portion is positioned between the pair of longitudinal edge portions. Wherein the unitary membrane includes a formed fabric and has a thickness less than about 0.1 inches. The semipermeable portion has a permeability greater than zero and less than about five CFM per square foot as measured by TAPPI test method TIP 0404-20. A method of making the unitary membrane includes the steps of providing a carrier fabric which is very permeable and forming a plurality of intercommunicating pores in the carrier fabric.Type: GrantFiled: September 30, 1999Date of Patent: November 11, 2003Assignee: Voith Sulzer Papiertechnik Patent GmbHInventor: David A. Beck
-
Patent number: 6632309Abstract: A structural member for reinforcement of asphalt and concrete roadways and other products, and which comprises a gridwork of warp strands and weft strands which are disposed at right angles to each other and so as to define an open structure. In one embodiment, the gridwork is impregnated with a thermosettable B-stage resin so as to interlock the strands at their crossover points and maintain the gridwork in a semi-flexible state, and after being applied to the product to be reinforced, the resin is heated to convert the same into a fully cured composite to thereby rigidize the gridwork and reinforce the product. In cases where the product to be reinforced is heated, such as asphalt paving, the heat of the product provides the heat necessary to fully cure the resin in situ. In another embodiment, the resin is fully cured to rigidize the gridwork prior to its being applied to the structure to be reinforced. A method of producing the resin impregnated gridwork is also disclosed.Type: GrantFiled: August 10, 2000Date of Patent: October 14, 2003Assignee: Hexcel CS CorporationInventors: James E. Hendrix, Gordon L. Brown, Jr., Mansfield H. Creech, Jr.
-
Patent number: 6630046Abstract: The present invention provides wall and floor coverings based on a carrier coated with one or more layers. The carrier includes a fiberglass containing mat consolidated with a binder, a non-woven made of organic synthetic fibers bonded with the fiberglass containing mat by needling. Part of the organic fibers penetrate through the fiberglass mat, and one or more layers coated on a glass fiber side of said carrier, opposite the non-woven synthetic mat.Type: GrantFiled: July 19, 2000Date of Patent: October 7, 2003Assignee: Johns Manville International, Inc.Inventor: Kurt Plötz
-
Publication number: 20030168153Abstract: An absorbent, low-linting fibrous structure comprising an entangled web of synthetic fibers, wherein fibers of at least one of said top surface and said bottom surface are surface bonded, such as by thermal or adhesive bonding. The web is absorbent, has low density, is resistant to linting, and can retain structural integrity at high temperatures. The structure can be made by forming a web of synthetic fibers, entangling the fibers of the web, such as by needling or hydroentangling, and bonding the fibers at the surface of the web by thermal or adhesive bonding.Type: ApplicationFiled: March 17, 2003Publication date: September 11, 2003Inventors: William Robert Ouellette, Robert Allan Johnson, Bruce Neil Hall
-
Publication number: 20030159213Abstract: The present invention describes a new mattress cover sheet with barrier effect against bacteria and parasites, consisting of a spunlace fibre based fabric. The spunlace fabric mattress cover can be produced in a structure with one or more layers, and can contain antibacterial substances. The sheet subject of the invention provides an effective barrier between the person and the mattress, in particular avoiding the transfer of pollutants from the mattress to the person and at the same time protecting the hygiene of the mattress itself.Type: ApplicationFiled: November 29, 2002Publication date: August 28, 2003Inventor: Vittorio Orlandi
-
Patent number: 6610385Abstract: A component formed at least in part by a CMC material and equipped with an integrally-formed surface feature, such as an airflow enhancement feature in the form of a turbulator or flow guide. The CMC material comprises multiple sets of tows woven together to form a preform that is infiltrated with a matrix material. The surface feature is integrally defined at a surface of the cooling passage by an insert member disposed between adjacent tows of at least one of the tow sets. The insert member has a cross-sectional size larger than the adjacent tows, forming a protrusion in the preform that defines the surface feature in the infiltrated, consolidated and cured CMC material.Type: GrantFiled: December 20, 2001Date of Patent: August 26, 2003Assignee: General Electric CompanyInventor: Ronald Ralph Cairo
-
Patent number: 6607797Abstract: A textile air bag material for a protective cushion in an pant restraint system is disclosed. The textile air bag material is composed of a fabric layer having two superimposed wall portions interwoven with each other at their peripheries. The wall portions have a first side with a surface area. On this side a continuous foil of an air-tight material is applied over the entire surface area. Further, a protective cushion made of the textile material and a method for producing the textile material are disclosed.Type: GrantFiled: April 13, 2000Date of Patent: August 19, 2003Assignee: TRW Occupant Restraint Systems GmbH & Co. KGInventor: Philipp Ritter
-
Publication number: 20030121590Abstract: The object of the invention is a process for the production of a multi-directional textile preform, in which there is deposited on a substrate suitable for stitching (M) a first layer of sections of thread, then, if desired, one or several other layers in different directions, so as to produce a sequence of depositions, then, carrying out if desired one or several other sequences of deposition of layers, each section of thread (31, 32, 33) being, at each end, fixed by stitching without knotting into said substrate (M) with the help of a needle (11, 12), characterized in that the stitching at the two ends of each section (31, 32, 33) is carried out independently with the help of two needles (11, 12) using separate threads (Pl , P2) from that of the layers, the end of the section of thread being, upon arrival of the deposition head at the height of its point of turning back, fixed by the stitching thread, the embedded stitching needle serving as a hooking pin for the thread during deposition of the following seType: ApplicationFiled: November 27, 2002Publication date: July 3, 2003Inventors: Georges Cahuzac, Fabien Barrot
-
Patent number: 6585843Abstract: A flexible, collapsible receptacle (hereinafter bag) for handling flowable materials which is fabricated from polymeric fabric and which provides (1) improved static control; (2) improved corrosion inhibition; and/or (3) improved microbial inhibition characteristics. The bag is manufactured by providing a quantity of thermoplastic resin having a predetermined conductivity (anti-static resin); forming the anti-static resin into relatively long, narrow, thin lengths of anti-static material (anti-static tapes); weaving the anti-static tapes into an anti-static fabric having a predetermined, controlled electrical resistivity; cutting the anti-static fabric into a plurality of pieces; and joining the pieces of anti-static fabric together thereby constructing the anti-static bag. Similar methods are disclosed for manufacturing bags having improved corrosion inhibition and/or improved microbial inhibition characteristics.Type: GrantFiled: December 6, 2000Date of Patent: July 1, 2003Assignee: Super Sack Mfg. Corp.Inventors: Craig Alan Nickell, Norwin C. Derby, Bradley Matthew Eisenbarth
-
Patent number: 6579391Abstract: A method for hydroentangling a nonwoven web to increase the strength and abrasion resistance while maintaining highly desirable hand and drape characteristics. The method provides for carding and cross-lapping synthetic and/or natural fibers so as to form a desired substrate. The substrate is then hydroentangled under relatively low pressure to form a desired spunlace web, and a relatively low amount of a foam adhesive latex binding material is applied to the spunlace web. Thereafter, a force is applied to the foamed spunlace web so as to cause the foamed binding material to fully penetrate the spunlace web from face to back. The resulting hydroentangled (spunlace) nonwoven web provides an enhanced balance of tensile properties, abrasion resistance, and fabric aesthetics.Type: GrantFiled: January 15, 1999Date of Patent: June 17, 2003Assignee: North Carolina State UniversityInventors: Donald A. Shiffler, Amit Shahani, Thomas F. Gilmore
-
Patent number: 6579396Abstract: A durable, low-density, high performance insulating material is suitable for use as a high temperature thermal and acoustic insulation. The insulation includes fiber batting made with non-thermoplastic fibers or blends of fibers such as aramid fibers and ceramic fibers, which are bound within at least some interstices by high temperature non-flammable thermoplastic binder such as polyphenylene sulfide. In addition, a fireblocking layer can be provided on at least one surface of the insulation to further improve fire ablation or flame retardance.Type: GrantFiled: March 8, 2002Date of Patent: June 17, 2003Assignee: Tex Tech Industries, Inc.Inventor: David F. Erb, Jr.
-
Publication number: 20030102707Abstract: An article of furniture is made from elongated polymer filaments. The polymer filaments may be monofilaments or plural filaments which are twisted together and heat set to prevent their untwisting during the subsequent weaving process. The heat setting of the polymer filaments is achieved by heating the polymer material either before or after the twisting process.Type: ApplicationFiled: August 29, 2002Publication date: June 5, 2003Applicant: Sun Isle Casual Furniture, LLCInventor: Larry Schwartz
-
Publication number: 20030092337Abstract: Composites made from at least two plies are described, where one of the outer layers is a layer comprising glass fibers, and in particular is a staple glass fiber nonwoven. The layers have been bonded to one another by needling, and the extent of this needling is such that some of the fibers of the organic nonwoven emerge from the surface of the glass fiber sheet. The composite is then provided with a binder by using a rotating roll for single-side application to the glass fiber surface. The composites are particularly suitable for producing bituminized prefabricated roofing and waterproofing sheets, and as backings for coatings, e.g. PVC coatings.Type: ApplicationFiled: October 17, 2002Publication date: May 15, 2003Inventors: Jorg Lehnert, Werner Groh, Michael Schops, Hermann Weizenegger
-
Publication number: 20030066589Abstract: A method is provided for using a woven preform having a base and at least one leg extending from the base. The preform is used to assemble first and second composite laminate components formed from tape or fabric and a resin matrix. Z-pins are inserted into the first component prior to its being cured, forming a stubble extending above a surface of the first component. The uncured preform is placed on the surface of the first component, the stubble extending into the preform. The cured second component is attached to the preform. Over-wrap plies are optionally placed on the outer surfaces of preform. Adhesive is optionally placed between the preform and the first and second components. A vacuum bag and tooling are used while curing the preform to adhere the legs of the preform to the second component and the base of the preform to the first component.Type: ApplicationFiled: October 9, 2001Publication date: April 10, 2003Inventors: Ross A. Benson, Patrick D. Sheahen, Larry R. Bersuch
-
Patent number: 6531014Abstract: A process for making an elastically stretchable composite sheet having a relatively low basis weight. An elastically stretchable second web is placed upon a first web comprising stretchable first continuous fibers and the first and second webs are intermittently bonded together to obtained a first composite web which is stretched under a plastic deformation of the first continuous fibers and then elastically contracted to obtain a second composite web.Type: GrantFiled: July 5, 2000Date of Patent: March 11, 2003Assignee: Uni-Charm CorporationInventors: Toshio Kobayashi, Hideyuki Ishikawa
-
Publication number: 20030045196Abstract: A composite nonwoven fabric includes a stretched unidirectionally aligned nonwoven fabric in which filaments composed of a thermoplastic resin are unidirectionally aligned and stretched and a dry nonwoven fabric that is provided on one side of the stretched unidirectionally aligned nonwoven fabric and that includes thermal-bonding fibers as a chief component. The filaments of the stretched unidirectionally aligned nonwoven fabric and the dry nonwoven fabric are intertwined by a needlepunch process, following which the two fabrics are unified by a thermal calendering process to produce the composite nonwoven fabric.Type: ApplicationFiled: August 26, 2002Publication date: March 6, 2003Inventor: Hideo Kumehara
-
Publication number: 20030037865Abstract: A device and method of use for applying twist-ties onto flexible packages on an assembly line. Each package has a front panel including an exterior surface. Each twist-tie is a strip of material having a first face. The apparatus comprises a glue applicator (e.g., a spray head), a supply (e.g., reel) of twist-tie material, a carrier (e.g., channel shaped head including magnets), and a package support (e.g., conveyor). The package support holds each package at a first station in an orientation whereupon the exterior surface of the front panel is oriented vertically. The carrier is arranged to be oriented in a first horizontal position for receipt of a respective twist-tie thereon so that the first face of the twist-tie is facing upward. The glue applicator applies glue (e.g., sprays hot glue) downward onto the first face of the twist-tie as it is advanced onto the carrier.Type: ApplicationFiled: October 15, 2002Publication date: February 27, 2003Applicant: Fres-co System USA, Inc.Inventors: Nicholas DiFabio, John Hall
-
Patent number: 6524424Abstract: A method of producing a drainage grid or network comprising a number of interlocked strips is disclosed which comprises providing a warp direction a plurality of strips having a channel or channels formed longitudinally therein, feeding such strips into a bonding zone wherein a filter material is bonded over the channel or channels, subsequently providing strips of polymeric material transverse to the warp strips and bonding them thereto to form the weft of the network and thereafter collecting the network or grid so produced. The warp and weft may be produced from yarn reinforced polymeric webbing which is heat bonded to give a mesh. It has been found that polyolefin materials, particularly polyethylene, are suitable. Where reinforcing is provided this may be in the form of reinforcing polyester yarns and are preferably inserted in the longitudinal direction in bundles. The filter fabric may also be a thermoplastic material and may be heat bonded, needle punched or woven.Type: GrantFiled: December 7, 2000Date of Patent: February 25, 2003Assignee: Linear Composites LimitedInventors: Terence John Edwards, Michael King McCreath
-
Publication number: 20030034115Abstract: A plurality of substantially parallel continuous filaments, e.g. of cellulose acetate or rayon, and preferably newly formed, are consolidated or partially stabilised, e.g. by application of solvent and pressure, by hydroentanglement, by embossing, or by crimping and stretching. The filament assembly or subassemblies thus produced are further stablised by folding, bundling, twisting or intertwining, e.g. to form braids (10), and are then bonded to a carrier layer or sandwiched between outer layers (12, 14), e.g. by hydroentanglement, melt blowing, spinbonding etc. The stablised filament assemblies may be arranged spaced transversely and may be cut just prior to bonding so as also to provide longitudinally spaced three dimensionally thicker regions, ready for conversion to finished products such as absorbant feminine hygiene products or medical swabs or the like.Type: ApplicationFiled: October 17, 2002Publication date: February 20, 2003Applicant: Lohmann GmbH & Co KGInventors: Georg Martin Barth, Edmund Hugh Carus
-
Patent number: 6520706Abstract: A support structure flange preform resembles the Greek letter “pi” and has a base with two legs extending therefrom. The preform is composed of a composite material that is formed from tows of woven or braided fiber. The tows are oriented to extend throughout each the base and legs. The preform may be either impregnated with a suitable thermoset resin, or may be unimpregnated so that resin may be infused at a later step of the overall manufacturing process. Two of the preforms are joined to a sine wave-shaped web of the structural beam. The web is formed from uncured, thermoset resin sheets that are reinforced with oriented fibers. The web has two outer laminates that sandwich a syntactic or foamed resin layer in between. The legs of each preform straddle one edge of the web and are shaped to both sides to the precise contours of the web. A laminate strip is positioned against the base of each preform to create a pair of flanges for the structural support member.Type: GrantFiled: August 25, 2000Date of Patent: February 18, 2003Assignee: Lockheed Martin CorporationInventors: Elbert Lee McKague, Jr., Ronald Patrick Schmidt, David Thomas Uhl
-
Patent number: 6506477Abstract: Data defining an outline shape of a section, color-region image data and adhesion-region image data are generated, color toners are transferred onto a color region and an adhesion region on a sheet in accordance with the respective image data, the sheet is aligned on processed sheets and laminated thereon. Next, a laminated body of the sheets is bonded by heating and pressurizing, and the laminated and bonded sheets are cut along the sectional outline shape. Further, sectional shape data of a solid model are generated and a transparent toner is transferred as an adhesive onto the adhesion region of the sheet. Then, after aligning and laminating the sheet on the processed sheets, the transparent toner is melted to bond the sheets. Color toners are transferred onto the color region of the sheet and the sheet is cut along the outline shape. Furthermore, the color region is defined on a transparent sheet in accordance with the sectional shape of the solid model.Type: GrantFiled: December 15, 1999Date of Patent: January 14, 2003Assignee: Minolta Co., Ltd.Inventors: Masahide Ueda, Naoki Kubo, Akiyoshi Kamisaki, Fumiya Yagi
-
Patent number: 6500203Abstract: A stent graft for transluminal implantation includes a resilient tubular interbraided latticework of metal or polymeric monofilaments, a tubular interbraided sleeve of polymeric multifilament yarns, and an adhesive layer between the sleeve and latticework for bonding them together. The monofilaments and multifilament yarns are arranged in respective sets of axially spaced apart and oppositely directed helices, concentric on a common axis of the stent graft. The respective braid angles of the monofilaments and multifilament yarns are carefully matched to ensure that the latticework and sleeve behave according to substantially the same relationship governing the amount of radial reduction that accompanies a given axial elongation. According to a process for fabricating the stent graft, the latticework and sleeve are braided and thermally set independently, then bonded to one another by a silicone polymer adhesive applied evenly to the latticework in a liquid spray that also incorporates an organic solvent.Type: GrantFiled: May 27, 1999Date of Patent: December 31, 2002Assignee: Boston Scientific Scimed, Inc.Inventors: Paul J. Thompson, George W. Du
-
Patent number: 6485592Abstract: A continuous precursor fiber bundle for manufacture of carbon fibers comprising a plurality of precursor fiber bundles each of which comprises at least 30,000 filaments, having a joined portion formed by joining at the terminal end of one of the precursor fiber bundles and the starting end of another one of the fiber bundles directly or through an intervening fiber bundle comprising a plurality of filaments, wherein the individual filaments at the joined portion are substantially uniformly interlaced with each other and wherein the interlacing of filaments is in a pattern selected from the group consisting of continuous substantially uniform interlacing in the transverse direction of said fiber bundles, interlacing at many joints on the joining portion, and interlacing of the entire face of said joining portion.Type: GrantFiled: October 13, 1998Date of Patent: November 26, 2002Assignee: Toray Industries, Inc.Inventors: Kousuke Yoshimura, Toshihide Sekido, Makoto Endo, Takao Sano
-
Publication number: 20020165597Abstract: Methods for attaching an axial filament to the body of a self expanding stent, the filament serving to enhance the radial self expanding force of the stent body. Also stents having enhanced radial self expansion characteristics.Type: ApplicationFiled: May 3, 2001Publication date: November 7, 2002Inventors: Claude O. Clerc, James T. Hogan, Carol A. Kaufmann, E. Skott Greenhalgh
-
Publication number: 20020153084Abstract: A method of inserting z-axis reinforcing fibers into a multi-layer composite laminate. Layers of material made up of z-axis fiber and y-axis fibers are automatically transported into a z-fiber deposition machine having a housing with upper and lower surfaces. Z-axis apertures are formed in the respective upper ad lower surfaces. An elongated solid rod having a tapered front tip is aligned in close proximity to the aperture in the bottom surface. The rod is first rotated by a motor and then actuated upwardly completely through the thickness of the layer of x-y material by an actuator. A first hollow tube having a z-axis is axially aligned with the aperture in the top surface and a fiber bundle is threaded downwardly through a first hollow tube to a position adjacent its bottom end.Type: ApplicationFiled: August 2, 2001Publication date: October 24, 2002Inventors: David W. Johnson, Scott A. Garrett, James M. Hook, Steven G. Moyers
-
Publication number: 20020144767Abstract: A method and apparatus for forming an improved pultruded and clinched Z-axis fiber reinforced composite laminate structure. The upper and lower skins and the core are pulled automatically through tooling where the skin material is wetted-out with resin and the entire composite laminate is preformed in nearly its final thickness. The preformed composite laminate continues to be pulled into an automatic 3-dimensional Z-axis fiber deposition machine that deposits “groupings of fiber filaments” at multiple locations normal to the plane of the composite laminate structure and cuts each individual grouping such that a extension of each “grouping of fiber filaments” remains above the upper skin and below the lower skin. The preformed composite laminate then continues to be pulled into a secondary wet-out station.Type: ApplicationFiled: November 19, 2001Publication date: October 10, 2002Inventors: David W. Johnson, James M. Hook, Scott A. Garrett, Steven G. Moyers
-
Patent number: 6451144Abstract: A method of manufacturing a sock having anti-microbial properties including the steps of providing a quantity of a thermoplastic resin including an anti-microbial agent admixture having a predetermined microbial inhibition characteristic; blending the thermoplastic resin with a polyethylene resin to form an anti-microbial feedstock; forming the anti-microbial feedstock into relatively long, narrow, thin lengths of anti-microbial members; and knitting the anti-microbial members into an anti-microbial sock having predetermined microbial inhibition characteristics.Type: GrantFiled: May 16, 2001Date of Patent: September 17, 2002Assignee: Super Sack Mfg. Corp.Inventors: Robert R. Williamson, Norwin Cedric Derby, Craig Alan Nickell
-
Publication number: 20020124936Abstract: The invention concerns a method for making composite plates which consists in driving along a specific direction a bundle oil parallel yarns; associating with this yarn a yarn layer transversely oriented relative to said specific direction, the bundle of yarns and/or the yarn layer (comprising at least an organic material and at least a reinforcing material, and the assembly comprising at least 10 wt. % of organic material; heating the assembly moving in the specific direction, and fixing it, by heating and/or by pressure, then by cooling, so as to form a composite strip; collecting the strips in the form of one or several composite plates. The invention also concerns a device for implementing the method and the resulting products.Type: ApplicationFiled: February 11, 2002Publication date: September 12, 2002Inventor: Dominique Loubinoux
-
Publication number: 20020123289Abstract: The present invention relates to an electromagnetically conductive textile fabric comprising conductive fibers arranged to provide a conductivity gradient through its thickness. The fibers may be intrinsically conductive or coated with a conducting material and the gradient can be related to variances in fiber density, fiber diameter (fineness) and fiber conductivity. The fabric can be used to eliminate or reduce electromagnetic interference (EMI) in various applications.Type: ApplicationFiled: October 26, 2001Publication date: September 5, 2002Inventors: Alfred R. DeAngelis, Andrew D. Child
-
Patent number: 6440244Abstract: A synthetic magnetodielectric composite material for absorbing electromagnetic radiation has a sheet of fabric having first and second surfaces. The fabric is formed of an insulating material. Magnetically permeable thread is disposed within the fabric. The magnetically permeable thread comprises a material having a permeability substantially greater than the permeability of free space. The fabric is impregnated with resin. The magnetically permeable thread is configured to provide predetermined permittivity and permeability within a selected frequency range, so as to provide desired absorption/transmission of electromagnetic radiation.Type: GrantFiled: July 7, 2000Date of Patent: August 27, 2002Inventors: Rodolfo E. Diaz, Michael C. Miller, Michael M. Lo Re, James P. K. Gilb, Shahriar Alam
-
Patent number: 6436215Abstract: A band element for mounting in the crown portion of a pneumatic tire to provide run flat ability to the tire in the event of loss of air pressure and to provide increased puncture resistance. The band is formed of flat strips of tape having fibers embedded in a resin matrix which are twisted and then pultrated to provide a rectangular cross sectional configuration. The twisted tape is wrapped about a mandrel and forms either the only layer, or the intermediate layer of a composite band in combination with inner and outer layers of flat tape or wound filament fibers, whereby the fibers in the tape extend across the central axis of the band to reduce interlaminar sheer. In another embodiment, a plurality of dimples or depressions are formed in the individual tape layers to extend a plurality of the fibers across the layer boundaries to reduce interlaminar sheer.Type: GrantFiled: February 24, 2000Date of Patent: August 20, 2002Assignee: Bridgestone/Firestone North American Tire, LLCInventors: Charles D. Spragg, James M. Kirby, Edward G. Markow
-
Patent number: 6412154Abstract: The present invention provides a method for the production of bounded non-wovens carriers. The method includes providing a glass staple fiber containing non-woven which is pre-consolidated with a binder. The glass staple fiber non-woven is placed adjacent to one or more non-wovens of synthetic fibers and hydro-dynamically needling at a water beam pressure in the range of 100 to 400 bar.Type: GrantFiled: July 19, 2000Date of Patent: July 2, 2002Assignee: Johns Manville International, Inc.Inventor: Kurt Plötz
-
Patent number: 6405773Abstract: A pneumatic tire is reinforced by a thin annular composite band embedded in the crown portion of the tire to enable the tire to resist compressive forces in the tire when in an uninflated condition. The band is formed of a plurality of wound layers of first and second resin coated fiber tows wherein the first tow is formed of fibers twisted at a greater angle than the fibers in the second tow. Layers of the first tow are located adjacent the neutral axis of the band to provide interlaminar shear strength with the tow layers located adjacent the inner and outer surfaces of the band being formed predominately of the second tow to provide a high level circumferential stiffness. The intermediate tow layers are formed of both type of tows to provide a transition zone between the central interlaminar shear strength and the outer circumferential stiffness.Type: GrantFiled: June 14, 2000Date of Patent: June 18, 2002Assignee: Bridgestone/Firestone North American Tire, LLCInventors: Stephen M. Vossberg, Charles D. Spragg, Edward G. Markow
-
Structure textile material made of at least two base nonwoven fabrics and method for its manufacture
Patent number: 6398895Abstract: The invention relates to a structured textile material made of at least two different, needled base nonwoven fabrics. The base nonwoven fabrics have a structure obtained by needling from at least one side. The needles used for the structure needling are fork needles or crown needles, and the depth of the forks and barbs, respectively, is so selected that, when piercing through, they completely fill up with fibers of the base nonwoven fabric facing the needles. The textile material have unmixed, pure fibers in the pattern, in the background and on the reverse side.Type: GrantFiled: July 19, 2001Date of Patent: June 4, 2002Assignee: Firma Carl FreudenbergInventors: Karlheinz Stein, Heinrich Laun, Michel Pässler -
Publication number: 20020046800Abstract: A hydroentangled nonwoven fabric exhibiting cross-direction extensibility and recovery comprises a nonwoven web of staple length fibers of about 0.8 to 3.0 denier having a basis weight of about 1.0 to 4.0 ounces per square yard. A polymeric binder composition substantially uniformly applied to the nonwoven web imparts desired elasticity to the web, with the fabric exhibiting at least about 50% extensibility in a cross-direction thereof, and at least about 90% recovery in a cross-direction. The nonwoven web may comprise synthetic fibers, natural fibers, and blends thereof, as well as continuous filaments. Patterned hydroentanglement of the web acts to entangle the fibers to provide the fabric with desired performance characteristics. A method of making the nonwoven fabric is disclosed. The nonwoven fabric is particularly suited for use in a mattress pad assembly, as also disclosed herein.Type: ApplicationFiled: August 23, 2001Publication date: April 25, 2002Applicant: Polymer Group Inc.Inventors: Lisa P. Barker, Wayne T. Rhodes, Michael J. Putnam
-
Patent number: 6375773Abstract: A plant serves as a mean for production of a fibre web of synthetic fibres, such as plastic fibres and absorbent fibres, such as viscose and cellulose fibres. The plant includes a forming head preliminary to lay a homogeneously and smoothly distributed fibre layer on a net shaped wire. Furthermore the plant includes a hydro-entangling section with liquid nozzles with powerful liquid jets to treat the in the forming head formed fibre layer, which consists of both synthetic—and absorbent fibres. The plant also includes an oven subsequently to thermal bond the synthetic fibres with cross bonds in the affected areas. Finally the dried web is winded up in a roller. By the help of the plant according to the invention, by higher production speed than known previously a fibre web can be produced, which is far cheaper, and which has a better and more homogeneous structure than similar conventional fibre webs.Type: GrantFiled: April 12, 2000Date of Patent: April 23, 2002Assignee: M&J Fibretech A/SInventor: Jens Ole Bröchner Andersen
-
Patent number: 6372072Abstract: A method of manufacturing a composite laminate and a composite laminate manufactured according to the method are provided. The laminate comprises a series of fabric plies (1 to 15) of fibrous reinforcing material set in plastics matrix material. The method includes the steps of providing a relatively small number of fabric styles from which to choose; selecting at least one of those fabric styles according to design requirements for a particular portion of the laminate; laying up that portion with the said selection, and repeating the selection and layup steps as required to complete the layup of the laminate.Type: GrantFiled: November 26, 1999Date of Patent: April 16, 2002Assignee: BAE Systems plcInventor: Michael J Healey