Plied Patents (Class 57/236)
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Patent number: 6829880Abstract: A tire for a vehicle wheel, includes a torus-shaped carcass, a tread located on a periphery of the carcass, and a pair of axially-facing side walls ending with beads reinforced with bead wires and respective bead-filling elements for mounting the tire on a corresponding rim. The tire includes rubberized fabrics reinforced with metal reinforcing cords. At least one of the metal reinforcing cords comprises at least two wires helicoidally double-twisted around a longitudinal axis of the metal cord. Further, at least one of the wires is permanently deformed by a substantially-sinusoidal deformation lying in a plane.Type: GrantFiled: November 25, 2003Date of Patent: December 14, 2004Assignee: Pirelli Pneumatici S.p.A.Inventor: Omero Noferi
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Patent number: 6805178Abstract: A metallic cord is composed of metallic filaments gathered together, the metallic filaments include at least one patterned filament which is, before gathered together, two-dimensionally waved so as to have a wave form defined by plural kinds of cycles different from each other in respect of the wave length and/or wave height. A pneumatic tire includes the metallic cords as its carcass cords.Type: GrantFiled: May 9, 2002Date of Patent: October 19, 2004Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Shinichi Miyazaki, Kazumi Yamazaki, Osamu Toda
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Patent number: 6796115Abstract: A process for producing yarns that have enhanced resistance to unraveling and linting, wherein the yarns are moved along guides through a needle loom where a series of needles engage the yarns. This engagement of the yarns by the needles causes the fibers of the yarns to become intermixed.Type: GrantFiled: December 19, 2001Date of Patent: September 28, 2004Inventor: Gilbert Patrick
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Publication number: 20040177601Abstract: 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: March 23, 2004Publication date: September 16, 2004Applicant: Sun Isle Casual Furniture, LLCInventor: Larry Schwartz
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Publication number: 20040131821Abstract: Towels which produce little to no lint (herein referred to as “lint-free”) and methods for making such towels are described herein. The lint-free towels contain a small amount of short cotton fibers in the pile yarn and the pile yarn contains a low twist factor. In the preferred embodiment, 24% or more of the noil is removed when the pile yarn is produced. This combination of low twist factor with few short cotton yarn, results in soft, absorbent, lint-free towels. Preferably, the lint-free towels contain yarn with a hairiness index of 5 to 7.5. The lint-free towels are produced by twisting the pile yarn with a poly vinyl alcohol (PVA) spun yarn. After weaving the yarns to form a towel, the PVA yarn is then dissolved during the production process, leaving twistless pile yarn.Type: ApplicationFiled: April 10, 2003Publication date: July 8, 2004Inventor: Rajesh Mandawewala
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Patent number: 6748731Abstract: A tire cord having core filaments preformed into a helical configuration while maintaining the core filaments in a parallel, side-by-side relationship. The core filaments are not twisted or stranded together. High tensile strength sheath filaments are also preformed into a flattened helical configuration so that the sheath filaments can be wrapped around the side-by-side core filaments such that the sheath filaments do not put such tension on the core filaments as to cause the core filaments to bunch. The core filaments are maintained in a flat, side-by-side configation so that no voids are formed and rubber can penetrate into the tire cord. The core filaments may number from three to six and the sheath filaments from one to seven. The cross-section of the tire cord is flattened and confined within an oval-shaped outer bound, the oval outer bound being characterized by a major axis and a minor axis.Type: GrantFiled: April 8, 2002Date of Patent: June 15, 2004Assignee: Tokusen U.S.A., Inc.Inventors: Takanori Kobayashi, William E. Smith, Charles E. Smith, Jr.
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Patent number: 6725640Abstract: 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: GrantFiled: April 17, 2002Date of Patent: April 27, 2004Assignee: Sun Isle Casual Furniture, LLCInventor: Larry Schwartz
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Patent number: 6709728Abstract: The present invention relates to specific methods of producing cleated rubber-backed floor mats (such as dust control or rubber mats) through the utilization of the combination of a perforated coated woven fabric article and a cushioned platen liner between the article and the metal platen of an in-line dust control mat manufacturing machine. Such a procedure permits a more efficient manner of producing cleated anti-creep dust control mats than previously followed. The produced mat as well as the woven fabric article/cushioned platen liner combination are also encompassed within this invention.Type: GrantFiled: July 25, 2001Date of Patent: March 23, 2004Assignee: Milliken & CompanyInventors: Robert C. Kerr, Amy B. Streeton
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Patent number: 6705070Abstract: 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: GrantFiled: February 11, 2002Date of Patent: March 16, 2004Assignee: Sun Isle Casual Furniture, LLCInventor: Larry Schwartz
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Patent number: 6698179Abstract: A process for manufacturing a metal cord includes the steps of permanently deforming at least one wire using a substantially sinusoidal deformation lying in a plane and stranding the at least one wire together with one or more other wires by helicoidally double twisting the wires around a longitudinal axis of the metal cord. The metal cord may include at least two wires each with diameter greater than or equal to 0.10 mm and less than or equal to 0.50 mm. An associated metal cord includes at least two wires. One or more of the at least two wires is permanently deformed using a substantially sinusoidal deformation lying in a plane. The at least two wires are stranded together by helicoidally double twisting the at least two wires around a longitudinal axis of the metal cord.Type: GrantFiled: July 3, 2002Date of Patent: March 2, 2004Assignee: Pirelli Pneumatici S.p.A.Inventor: Omero Noferi
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Publication number: 20030221762Abstract: A steel cord is composed of three to six steel filaments each having a filament diameter of from 0.25 to 0.45 mm, the three to six steel filaments including shaped filaments and twisted together, wherein the shaped filaments are, before twisted together, coiled to be set in a form of coil having a coil diameter of less than 5 mm and a coil pitch of more than 5 mm, the shaped filaments include at least two kinds of shaped filaments which are different in respect of the form of coil, the shaped filaments are twisted together while the coil diameter is reduced, the elongation of the cord at 50N load is less than 0.2%, and the cord strength is in a range of from 2500 to 3500 N/sq.mm.Type: ApplicationFiled: March 13, 2003Publication date: December 4, 2003Inventors: Shinichi Miyazaki, Kazumi Yamazaki, Osamu Toda
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Publication number: 20030209003Abstract: An electrically conductive yarn comprises stainless steel fibers. the electrically conductive yarn comprises at least one elongated element, which has an outer surface being provided out of metal or metal alloy having a lower specific electrical resistance as the stainless steel fibers.Type: ApplicationFiled: May 13, 2003Publication date: November 13, 2003Applicant: N.V. BEKAERT S.A.Inventors: Steve Verstraeten, Jan Pavlinec, Pol Speleers
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Patent number: 6625970Abstract: An article of furniture is made from elongated polymer filaments which are attached and woven onto a frame forming woven panels. Subsequent to the weaving and attachment process, the completed article is placed in an oven to heat set the resulting woven material. The polymer filaments may be monofilaments or plural filaments which are twisted together and then heat set to prevent their untwisting during the subsequent weaving process. The heat setting of the polymer filaments is achieved by heating to about the softening temperature or above of the polymer material.Type: GrantFiled: January 31, 2002Date of Patent: September 30, 2003Assignee: Sun Isle Casual Furniture, LLCInventor: Larry Schwartz
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Publication number: 20030165656Abstract: A carpet fiber yarn having carpet fiber and binder material, the yarn being subjected to singeing to remove protruding fiber ends, and subjected to heat sufficient to melt the binder fiber, wherein initial appearance and trafficked appearance of a first test carpet having a pile comprised of the yarn is improved over a corresponding second test carpet having a pile comprised of an unsinged yarn with the carpet fiber and the binder fiber, the unsinged yarn also being subjected to heat sufficient to melt the binder fiber.Type: ApplicationFiled: November 13, 2002Publication date: September 4, 2003Applicant: Solutia Inc.Inventors: Richard W. Miller, Harold M. Familant, Tim D. Smith, Kenneth R. Thomas, Bart S. Campbell, Debra N. Hild, James E. Polk, David B. Horn, Raymond S. Knorr, Walter J. Nunning, William K. Fairchild
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Publication number: 20030106300Abstract: A steel cord (16) adapted for the reinforcement of thermoplastic elastomers comprises more than one strand (18, 20). Each strand comprises two or more steel filaments (22, 24, 26, 28). At least some of said steel filaments are provided with a zinc coating (40), characterized in that said zinc coating (40) has a thickness lower than two micrometer and that an alloy layer zinc-steel (42) is present between the zinc coating and the steel.Type: ApplicationFiled: November 6, 2002Publication date: June 12, 2003Inventors: Paul Bruyneel, Eric Bruneel, Frans Van Giel
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Patent number: 6550507Abstract: An as-spun monofilament of thermotropic aromatic polyester(amide), which satisfies the following conditions: D≧40; Te>45; &Dgr;L≧0, D being its diameter (in &mgr;m), Te its tenacity (in cN/tex) and &Dgr;L its variation in length (in %) after 2 minutes at 235±5° C. at an initial tension of 0.2 cN/tex. A spinning process for obtaining such a monofilament, including, upon emergence from the spinneret, of structuring the flow of the polymer by stretching in a layer of gaseous fluid for a predetermined time which is a function of the diameter D, before thermally quenching the flow of polymer thus structured in a liquid, so as to solidify it.Type: GrantFiled: December 6, 1999Date of Patent: April 22, 2003Assignee: Michelin Recherche et Technique S.A.Inventors: Philippe Esnault, Jean-Claude Aubry
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Patent number: 6425237Abstract: A sewing yarn is described, with at least two roving. yarns, which are twisted together with one another for the formation of the sewing yarn, whereby each roving yarn has the structure of a core yarn, comprising at least one first multifilament yarn component, forming a yarn core, and a second fiber yarn component spun over the core. In the cross-section of the sewing yarn, the spun fiber yarn covering of at least one roving yarn contains less than 41 individual fibers.Type: GrantFiled: March 16, 2000Date of Patent: July 30, 2002Assignee: Amann & Soehne GmbH & Co.Inventors: Karl Greifeneder, Kurt Truckenmueller
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Patent number: 6415593Abstract: A steel cord is formed by compactly twisting steel filaments together, the steel filaments including a plurality of zigzag filaments and optionally a nonzigzag filament, the zigzag filament being zigzaged two-dimensionally and made up of straight segments each extending between the zigzag peak points, the nonzigzag filament being straight. In case the cord is composed of only the zigzag filaments, the zigzag filaments include at least two kinds of zigzag filaments having different zigzag pitch lengths. In case the cord is composed of both the zigzag filaments and nonzigzag filaments, some of the zigzag and nonzigzag filaments are first loosely twisted together into a bunch, and then a plurality of bunches are twisted together into the cord. In any case, the zigzag pitch length and zigzag wave height of each zigzag filament are substantially constant along the length thereof.Type: GrantFiled: October 11, 2001Date of Patent: July 9, 2002Assignees: Sumitomo Rubber Industries, Ltd., Sumitomo Electric Industries, Ltd.Inventors: Shinichi Miyazaki, Kazumi Yamazaki, Yasuo Sakai
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Patent number: 6412263Abstract: A reinforcing steel cord for rubber products, such as steel belted radial tires or conveyor belts, is disclosed. This steel cord is improved in rubber penetration and ageing adhesive force relative to the rubber material. The steel cord is formed by twisting a plurality of brass coated external element wires around a flat and spirally twisted core, with the twisted direction of the core being the same as or opposite to that of the resulting steel cord. In the steel cord, the pitch of the twisted core is set to allow the core to be twisted 0.2 to 2 times within the pitch of the cord, thus preferably forming sufficient interspaces between the core and the external wires in addition to the interspaces between the external wires.Type: GrantFiled: June 2, 2000Date of Patent: July 2, 2002Assignee: Hongduk Steel Cord Co., Ltd.Inventors: Byung-Ho Lee, Seung-Ho Lim
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Patent number: 6354068Abstract: A steel cord comprises a core of three or more filaments bundled without twisting and a sheath of at least one layer comprised of plural filaments wound around the core, wherein all core filaments are arranged in a given rectangle at any section in its longitudinal direction. Such steel cords are used in a belt of a pneumatic tire. And also, these cords are produced by a tubular-type twisting machine having a specified structure.Type: GrantFiled: June 22, 2000Date of Patent: March 12, 2002Assignee: Bridgestone CorporationInventors: Shuichi Onuma, Naohiko Obana, Chihiro Yoshida
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Patent number: 6351933Abstract: A pneumatic tire for heavy duty use comprises at least one radial carcass ply, a tread portion disposed radially outwardly of the crown region of the carcass plies and a crown reinforcing structure interposed between the tread portion and the crown region of the carcass plies. The crown reinforcing structure includes a belt assembly having at least a first, radially innermost and a second, radially outermost belt ply. The cords reinforcing the belt plies are preferably made of PET or PEN and have a linear density comprised between 2000 and 16000 Denier, a twist comprised between 2 and 7 TPI and a twist multiplier comprised between 3 and 5.Type: GrantFiled: November 18, 1999Date of Patent: March 5, 2002Assignee: The Goodyear Tire & Rubber CompanyInventor: René François Reuter
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Patent number: 6332310Abstract: A steel cord is formed by compactly twisting steel filaments together, the steel filaments including a plurality of zigzag filaments and optionally a nonzigzag filament, the zigzag filament being zigzaged two-dimensionally and made up of straight segments each extending between the zigzag peak points, the nonzigzag filament being straight. In case the cord is composed of only the zigzag filaments, the zigzag filaments include at least two kinds of zigzag filaments having different zigzag pitch lengths. In case the cord is composed of both the zigzag filaments and nonzigzag filaments, some of the zigzag and nonzigzag filaments are first loosely twisted together into a bunch, and then a plurality of bunches are twisted together into the cord. In any case, the zigzag pitch length and zigzag wave height of each zigzag filament are substantially constant along the length thereof.Type: GrantFiled: July 29, 1999Date of Patent: December 25, 2001Assignees: Sumitomo Rubber Industries, Ltd., Sumitomor Electric Industries, Ltd.Inventors: Shinichi Miyazaki, Kazumi Yamazaki, Yasuo Sakai
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Patent number: 6250254Abstract: An animal chew including a plurality of fibers which are wound together to form rope strands. Two or more rope strands are twisted together to form a rope segment. A ribbon baring indicia is either interlaced with the rope segments or helically twisted around the perimeter of the rope segment. The indicia printed on the ribbon can either be of a fun nature, a commercial nature, or a public safety nature.Type: GrantFiled: July 21, 1999Date of Patent: June 26, 2001Inventor: Charles Weinacker
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Patent number: 6237663Abstract: A metal cord for reinforcing articles made from elastomeric material comprises a plurality of metal wires wound spirally around each other. At least one of the metal wires is formed from a shape memory material, has capacities of recovering a previously memorized shape, and is deformed from the memorized shape. The shape memory wire of the cord has the recovery capacities substantially active in a first heat cycle and degraded to at least a significant predetermined extent after the first heat cycle. One or more such metal cords may be incorporated in pneumatic tires, reinforcing fabric, and other articles, including by means of processes described herein.Type: GrantFiled: October 14, 1998Date of Patent: May 29, 2001Assignee: Pirelli Coordinamento Pneumatici S.p.A.Inventors: Marco Cipparrone, Gurdev Orjela, Guido Riva
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Patent number: 6076344Abstract: Process for producing a steel cord for pneumatic tires comprising a bunch of wires, the core of which consists of wire filaments 10 arranged bunched juxtaposed in parallel. Preferably at least three wire filaments 10, 20 are provided, at least two wire filaments located juxtaposed in parallel being spirally shaped as core filaments 10 forming a core 60 and at least one wire filament spirally surrounding the two core filaments 10 as a sheathing wire 20. Spirally shaping the wire filaments 10 is achieved in accordance with the invention by false twisters 40. Due to this spiral shaping of the wire filaments 10 migration of the filaments from the core composite is avoided more particularly. The residual torsional stresses of the core filaments among each other and in conjunction with the restoring forces of the sheathing wire are advantageously cancelled. In addition, the steel cord features to advantage a flattened, more particularly, oval shape.Type: GrantFiled: July 17, 1998Date of Patent: June 20, 2000Assignee: Drahtcord Saar GmbH & Co. KGInventor: Siegfried Doujak
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Patent number: 5987867Abstract: A yarn for a floor textile material which is comprised of a coarse yarn and a fine yarn twisted together for tufting into a backing material to provide a floor mat. The finer yarn has fibers in the range of 32 to 100 decitex while the coarser yarn has fibers in the range of 110-290 decitex.Type: GrantFiled: November 24, 1997Date of Patent: November 23, 1999Assignee: Milliken Denmark A/SInventors: Aage Lang, Jan Lang, Willy DeMeyer
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Patent number: 5918453Abstract: Fabrics containing melamine fibers are rendered more comfortable by carding the melamine fibers under vacuum so as to exhibit a narrower fiber diameter distribution (.delta..sub.d) and/or a narrower staple length distribution (.delta..sub.l) as compared to melamine fibers which are carded in the absence of vacuum. In addition, more comfortable melamine fiber-containing yarns are produced by spinning the staple fiber at a lower twist multiplier (TM) as compared to conventional melamine fiber yarns. Most preferably, the melamine fiber-containing fabrics and yarns will be blended with at least one other type of synthetic fibers, such as aramid fibers.Type: GrantFiled: October 1, 1998Date of Patent: July 6, 1999Assignee: BASF CorporationInventors: George M. Kent, Karl Ott
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Patent number: 5887416Abstract: A rental mat in which a pile yarn is tufted onto a base cloth and the total or a part of pile shape is a cut pile. The pile yarn is composed of one BCF nylon twist yarn and one or more nylon monofilament single yarns. The BCF nylon twist yarn and the nylon monofilament single yarns are tufted as one pile yarn under a state of being twisted each other, and are separated and isolated respectively from the twisted state at a part of the cut pile on a mat surface.Type: GrantFiled: November 13, 1997Date of Patent: March 30, 1999Assignee: Duskin Co., Ltd.Inventors: Kikuo Shimono, Yuji Nagahama
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Patent number: 5829241Abstract: A process and apparatus for making alternate S and Z twist plied yarn from individual singles yarns includes the steps of tensioning the singles yarns as they move in a path through the process, twisting the individual yarns in either an S or Z direction, snubbing the yarn to restrain ply twisting so the twist in the singles yarn can equalize itself, stopping the forward movement of the yarn, then bonding the ply-twisted yarns at a node while applying twist, stopping the twisting operation, then repeating the procedure while twisting in the opposite direction. The ply twisted yarn has a lower defect level of less than 2.5 defects per 100 inch length of yarn.Type: GrantFiled: February 2, 1996Date of Patent: November 3, 1998Assignee: E. I. duPont de Nemours and CompanyInventors: Robert William McAllister, Steven Kikuo Shibata
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Patent number: 5822973Abstract: A steel cord intended for use to reinforce rubber products is produced by drawing, into a steel filament of 0.10 to 0.40 mm in diameter and more than 3,000 N/mm.sup.2 in strength, a wire rod having a carbon content of more than 0.70% by weight, and twisting a plurality of such steel filaments together. Also a pneumatic tire is provided which employs in at least a portion of a reinforcing member thereof the steel cord improved in corrosion resistance and having an R.sub.1 /R.sub.0 ratio.times.100 which is less than 100, where R.sub.0 is the radius of spiral curvature of the spiraled steel filament resulting from untwisting said steel cord and R.sub.1 is the radius of spiral curvature of said steel filament of which the surface layer inside the spiral is removed by dissolving.Type: GrantFiled: October 6, 1997Date of Patent: October 20, 1998Assignee: Bridgestone Metalpha CorporationInventors: Yoshikazu Kaneko, Naohiko Obana
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Patent number: 5819521Abstract: A steel cord for reinforcing a rubber product has a multilayer structure consisting of two or more layers including a core, or a structure consisting of seven or more strands twisted in the same direction at the same pitch. In the steel cord, at least one of three strands that are successively adjacent to one another or that are in mutual contact is formed of two filaments that are paired substantially parallel to each other. The direction of pairing the two filaments of each strand is substantially the same over the entire length of the cord. Each of the remaining strands is formed of a single filament.Type: GrantFiled: December 24, 1996Date of Patent: October 13, 1998Assignee: Bridgestone CorporationInventor: Kiyoshi Ikehara
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Patent number: 5802839Abstract: An endless power transmission belt construction, cord therefor and methods of making the same are provided, the cord having the yarns and the plies thereof respectively twisted on a 2 for 1 twister so as to cause the longitudinal axes of the fiber filaments to be disposed generally in the longitudinal direction of the cord with the denier of the fiber filaments of each yarn being approximately 1500. The twist multiplier of three plies is 3.7687 as the plies are twisted together at a rate of approximately 2.9 turns per linear inch of the cord, and the twist multiplier for the two yarns is 3.6765 as the two yarns for each ply are twisted together at a rate of approximately 4.9 turns per linear inch of that ply. The twist multiplier for five plies is 3.6986 as the plies are twisted together at a rate of approximately 1.8 turns per linear inch of the cord, and the twist multiplier for three yarns is 3.5838 as the three yarns for each ply are twisted together at a rate of approximately 3.Type: GrantFiled: April 2, 1996Date of Patent: September 8, 1998Assignee: Dayco Products, Inc.Inventor: Robert M. Van Hook
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Patent number: 5772809Abstract: A pneumatic tire comprises a carcass toroidally extending between a pair of bead portions and a belt arranged outside the carcass in a radial direction of the tire and composed of at least one belt layer, in which the belt layer is made from a plurality of steel cords, each cord being formed by twisting 2 to 4 filament bundles each consisting of two steel filaments paralleled with each other so as to have a structure that major axes of the filament bundles constituting the cord are set toward substantially the same direction. In the belt layer, the major axes of the filament bundles in the cords constituting the belt layer are arranged substantially in a row in a widthwise direction of the belt.Type: GrantFiled: December 4, 1996Date of Patent: June 30, 1998Assignee: Bridgestone CorporationInventor: Manabu Yanagisawa
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Patent number: 5694755Abstract: A buoyant line or rope made from two or more strands of natural or synthetic fibers, with the fibers in one or more of the strands being arranged (e.g., by being spun or "laid") around a buoyant core. The relative buoyancy of the line may be increased or decreased by changing the number of strands having a buoyant core or by changing the diameter of the buoyant cores.Type: GrantFiled: January 23, 1997Date of Patent: December 9, 1997Assignee: Froystad Fiskevegn ASInventor: Per Fr.o slashed.ystad
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Patent number: 5661966Abstract: A steel cord effective for reinforcing a super-large off-road tire wherein strands made by simultaneously twisting together 3 to 6 steel wires in the same twisting direction with the same pitch length are used and the steel cord is made by twisting together 3 to 6 such strands in the same direction as the twisting direction of the strands and with the same pitch length. Each of the steel wires constituting the strands continuously has a small wavy pattern of a pitch length smaller than the lay length of the strands and therefore each of the strands has a compound pattern comprising a wavy pattern formed by the twisting and said small wavy pattern and in a gap is formed between steel wires each of the strands by the small wavy pattern. The lay length P.sub.1 of the steel cord is 8 to 15 times the steel cord diameter D and the elongation on breakage by tension of the steel cord is over 5%.Type: GrantFiled: June 27, 1996Date of Patent: September 2, 1997Assignee: Tokyo Rope Manufacturing Co. Ltd.Inventor: Kazuo Matsumaru
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Patent number: 5644909Abstract: An alternate twist plied yarn formed from a plurality of strands of singles yarn twisted in alternating directions in lengthwise intervals of first half-cycles of twist at a predetermined twist level followed by second half-cycles of twist at the same twist level with reversal nodes therebetween, the singles twisted yarns being ply-twisted together in alternating directions in lengthwise intervals of first half-cycles of ply-twist followed by second half-cycles of ply-twist, there being a bond formed adjacent each node wherein the first half-cycle of ply-twist is located within the bond and the second half-cycle of ply-twist originates at one end of the bond, the twist level in the singles twisted yarn is between 25% in the same direction and 60% in the opposite direction of the twist applied to the singles yarns before plying.Type: GrantFiled: September 10, 1996Date of Patent: July 8, 1997Assignee: E.I. Du Pont de Nemours and CompanyInventors: Warren Francis Knoff, Robert William McAllister, Peter Popper, Steven Kikuo Shibata, Robert Edward Taylor, Paul Wesley Yngve
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Patent number: 5609013Abstract: A steel cord for the reinforcement of rubber articles is formed by twisting plural filament wires of a high carbon steel. In this case, the filament wire is drawn from a wire rod so as to satisfy a relationship of T.gtoreq.230-148 logD (wherein D is a diameter of the filament wire and T is a tensile strength of the filament wire) and a difference in tensile strength between a surface layer portion and an internal portion in the filament wire of not more than 80 kgf/mm.sup.2.Type: GrantFiled: February 3, 1995Date of Patent: March 11, 1997Assignee: Bridgestone Bekaert Steel Cord Co., Ltd.Inventors: Akihiro Kaneda, Koichi Yokota, Masao Nakamura
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Patent number: 5603208Abstract: A composite rubber body is formed by embedding steel cords in rubber and vulcanization-building them. In this case, each of the steel cords is a single steel filament wire or plural twisted steel filament wires obtained by drawing of a wire rod of high carbon steel having a given composition. The filament wires satisfy given relationships between filament diameter and tensile strength before and after the vulcanization and have a retention of loop strength of not less than 55%.Type: GrantFiled: February 15, 1995Date of Patent: February 18, 1997Assignee: Bridgestone Bekaert Steel Cord Co., Ltd.Inventors: Masuhiro Fujita, Hironori Sakaguchi, Akihiro Kaneda
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Patent number: 5557915Abstract: An alternate twist plied yarn formed from a plurality of strands of singles yarn twisted in alternating directions in lengthwise intervals of first half-cycles of twist at a predetermined twist level followed by second half-cycles of twist at the same twist level with reversal nodes therebetween, the singles twisted yarns being ply-twisted together in alternating directions in lengthwise intervals of first half-cycles of ply-twist followed by second half-cycles of ply-twist, there being a bond formed adjacent each node wherein the first half-cycle of ply-twist is located within the bond and the second half-cycle of ply-twist originates at one end of the bond, the twist level in the singles twisted yarn is between 25% in the same direction and 60% in the opposite direction of the twist applied to the singles yarns before plying.Type: GrantFiled: November 14, 1994Date of Patent: September 24, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventors: Warren F. Knoff, Robert W. McAllister, Peter Popper, Steven K. Shibata, Robert E. Taylor, Paul W. Yngve
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Patent number: 5502960Abstract: A steel cord for reinforcing automobile tires is composed by intertwisting at least one material wire having small spiral-like curls and 1 to 5 straight material wires. This restricts the ratio of fracture elongation of the two kinds of material wires as well as the elongation percent of the cord at 5 kg loading and improves the stability of twist, the fatigue resistance, the penetrability of a rubber compound and the handling workability.Type: GrantFiled: September 12, 1994Date of Patent: April 2, 1996Assignee: Tokusen Kogyo Company LimitedInventors: Yoshiro Kobayashi, Katsutoshi Saita, Yoshinobu Takegawa, Koichi Hinoura
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Patent number: 5478624Abstract: A synthetic yarn made from a blend of base fibers selected from the group consisting of polyester, nylon 6 and nylon 66, and 1-12 weight percent of a heat activated binder fiber having a melting point within the range of 165.degree.-190.degree. C., said binder fiber being made from a copolyamide which is derived from a mixture of 50 to 85 wt. % caprolactam, 0 to 40 wt. % hexamethylenediamine adipate or a combination of hexamethylenediamine and adipic acid, and optionally a salt selected from the group consisting of hexamethylenediamine dodecanedioate, hexamethylenediamine azeleate, hexamethylenediamine sebacate and hexamethylenediamine terephthalate; and a chain terminator selected from at least one of the group consisting of a fatty acid and a fatty amines, wherein said fatty acid or fatty amine include at least 14 carbon atoms.Type: GrantFiled: February 14, 1995Date of Patent: December 26, 1995Assignee: AlliedSignal Inc.Inventor: Robert A. Lofquist
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Patent number: 5465566Abstract: A system for bonding alternate S and Z twist plied yarn. The system bonds the plied yarns as they move in a path through the process and permits balanced expansion of the yarn while preventing lateral movement out of the path. The bonding of the yarn strands while plied together, forms a bond characterized by a dense region of filaments adhesively joined together where one of the strands overlaps another strand, followed by a less dense region along the one strand where fewer filaments are adhesively joined, followed by another dense region.Type: GrantFiled: June 8, 1993Date of Patent: November 14, 1995Assignee: E. I. Du Pont de Nemours and CompanyInventors: Donald W. Edwards, Craig A. Jackson, Steven K. Shibata, Paul W. Yngve
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Patent number: 5456697Abstract: A braided suture possesses a cable core which resists any tendency to protrude through the surrounding braid structure.Type: GrantFiled: August 23, 1993Date of Patent: October 10, 1995Assignee: United States Surgical CorporationInventors: Michael P. Chesterfield, Ilya S. Koyfman, Donald S. Kaplan, Matthew E. Hermes
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Patent number: 5442903Abstract: Monofilament twist for applications, such as, for example, use as a reinforcement in tires, for paper-machine junction felts, as a canopy support and for knitting, braiding or other textile operations, consisting of at least two monofilaments of synthetic material of a grist at least equal to 20 tex, assembled, twisted and thermoset and virtually free of untwisting stress. The synthetic material is preferably based on polyamide or polyester. Process for the production of twists.Type: GrantFiled: November 23, 1993Date of Patent: August 22, 1995Assignee: Rhone-Poulenc FibresInventor: Gerard Lagarrigue
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Patent number: 5423859Abstract: A bioabsorbable surgical suture which includes at least one multifilament yarn having at least one portion wherein the filaments of the yarn are entangled. The suture has a core formed by combining a length of the entangled yarn with a length of at least one other entangled yarn to form a plied yarn which is then entangled and twisted in a particular direction. This entangled and twisted yarn is then combined with another entangled and twisted yarn, both yarns having been twisted in the same direction. The combined yarns are then twisted together in the opposite direction to form a suture core.Type: GrantFiled: February 1, 1993Date of Patent: June 13, 1995Assignee: United States Surgical CorporationInventors: Ilya Koyfman, Michael P. Chesterfield
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Patent number: 5408819Abstract: A metal cord for reinforcing a rubber article is made by twisting three or more metal filaments. At least one or at most the total number minus two of the metal filaments have a larger shaping ratio in the diametrical direction of the cord than the other metal filaments. At least one of the metal filaments having a larger shaping ratio is kept out of contact at portions in the longitudinal direction with a metal filament or filaments arranged in juxtaposition at one side or both sides thereof. At least two adjacent ones of the metal filaments having a smaller shaping ratio are in contact with each other.Type: GrantFiled: September 22, 1992Date of Patent: April 25, 1995Assignee: Sumitomo Electric Industries, Inc.Inventors: Yoshifumi Nishimura, Kenichi Okamoto
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Patent number: 5337549Abstract: A steel cord for reinforcement of rubber products composed of two material wires of a diameter of 0.25 to 0.40 mm and a carbon content of 0.75 to 0.88 wt % which are entwisted at a twist pitch of 9.0 to 16.0 mm and in open structure, with improved fatigue resistance, flexibility and corrosion resistance.Type: GrantFiled: July 20, 1993Date of Patent: August 16, 1994Assignee: Tokusen Kogyo Company LimitedInventors: Yoshirou Kobayashi, Koichi Hinoura, Akihiro Nagamoto
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Patent number: 5333442Abstract: A multi-strand nylon rope having improved abrasion resistance is comprised of a plurality of strands. Each strand is comprised of a plurality of yarns wherein each yarn is formed of a predetermined number of filaments. The filaments of each yarn are twisted together to form a yarn of a predetermined size, the twist direction being opposite that of the final ply yarn direction. For a right lay rope a sufficient number of filaments are twisted together in the left or "S" direction to produce a yarn of a predetermined size. Three or more yarns prepared in this manner are then plied or twisted together in the opposite or right direction. The cover for each strand is formed of alternate yarns of standard (i.e. round) and oblong filaments, respectively, the oblong filaments having a modification ratio of three, forming a rope having increased abrasion resistance, a hand and feel that is not stiff or unmanageable and which resists strand-to-strand wet abrasion.Type: GrantFiled: November 9, 1992Date of Patent: August 2, 1994Assignee: American Manufacturing Company, Inc.Inventor: George A. Berger
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Patent number: 5321960Abstract: A reinforcing yarn and an abrasion resistant knitted fabric made therewith are disclosed. The reinforcing yarn is made by Z twisting one end of a "Z"-twist textured yarn together with one end of a "S"-twist textured yarn to yield an S/Z yarn pair, which is then reverse twisted together with a duplicate S/Z yarn pair to yield a 4-end multi-twisted reinforcing yarn. This reinforcing yarn is knit in plaited relationship to the body yarn of a fabric to produce a fabric with exceptional abrasion resistance.Type: GrantFiled: January 28, 1993Date of Patent: June 21, 1994Assignee: Kayser-Roth CorporationInventors: Caleb C. Whitt, Rudolph W. Howard, Boyce J. Asbill, Denise C. Yow
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Patent number: 5295346Abstract: A metal cord usable for the reinforcement of rubber articles is comprised of a helically formed single wire filament having a twisting angle of 75-84.5.degree. or a bundle of two twisted metal filaments each having a twisting angle of 75-84.5.degree.. Such metal cords are preferably used as a rubber reinforcement in each part of a pneumatic tire.Type: GrantFiled: March 3, 1992Date of Patent: March 22, 1994Assignee: Bridgestone CorporationInventors: Motonori Bundo, Kazuma Morotomi