Plural Wire Wrapped Layer Patents (Class 57/213)
  • Patent number: 12054885
    Abstract: Provided is an elastomer reinforcement cord with improved rust resistance. An elastomer reinforcement cord 10 includes metal filaments and a polymer material. The elastomer reinforcement cord 10 has a multi-strand structure which includes: at least one core strand 21 formed by twisting plural metal filaments 1a and 1b together; and two or more sheath strands 22 each formed by twisting plural metal filaments 11a and 11b together, the sheath strands being twisted together around the core strand. An intra-sheath-strand filling rate a, which is a ratio of the area of the polymer material with respect to an intra-sheath-strand gap region A, is 52% or higher, and an inter-strand filling rate b, which is a ratio of the area of the polymer material with respect to an inter-strand gap region B, is 75% or higher.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: August 6, 2024
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Nobuhiro Ando
  • Patent number: 11795613
    Abstract: Provided is an elastomer reinforcement cord with improved rust inhibition. An elastomer reinforcement cord (10) includes metal filaments and a polymer material. The elastomer reinforcement cord (10) has a multi-strand structure which includes: at least one core strand (21) formed by twisting plural metal filaments (1a) and (1b) together; and two or more sheath strands (22) each formed by twisting plural metal filaments (11a) and (11b) together, and in which the sheath strands are twisted together around the core strand. In a region surrounded by a line connecting the centers of the metal filaments constituting the outermost sheath layer of the core strand at a cross-section in a direction orthogonal to an axial direction after vulcanization of the core strand, when a region occupied by other than the metal filaments is defined as a gap region, a filling rate, which is a ratio of the area of the polymer material with respect to the gap region, is 52% to 120%.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: October 24, 2023
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Takahisa Shizuku
  • Patent number: 11585044
    Abstract: A cord for reinforcing elastomers excellent in adhesion to elastomers such as rubber is provided. The cord is a cord for reinforcing elastomers (10) that includes metallic filaments (1) and a resin filament (2) twisted together, the resin filament (2) being made from a polymeric material having a melting point or softening point of 80 to 160° C.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: February 21, 2023
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Takahisa Shizuku, Nobuhiro Ando, Norihiko Kaga
  • Patent number: 11550214
    Abstract: Push-cables and associated apparatus for pipe inspection systems are disclosed. In one embodiment a pipe inspection system includes a camera head, a push-cable including an outer covering enclosing a plurality of electrical conductors for transmitting signals and/or power between the camera head and an electronic device operatively coupled to the push-cable, and a spring assembly disposed about the push-cable near the distal end where the spring assembly comprises a spring with a tapered flex section having a varying cross-sectional area and/or a varying cross-sectional shape.
    Type: Grant
    Filed: May 16, 2021
    Date of Patent: January 10, 2023
    Assignee: SEESCAN, INC.
    Inventors: Mark S. Olsson, Eric M. Chapman, James F. Kleyn
  • Patent number: 11320122
    Abstract: A suspension wire structure comprises a conductive wire, a plurality of supporting stranded wires and a protective layer. The conductive wire has a first strand made of a first material. The plurality of supporting stranded wires surround the conductive wire, and each of the supporting stranded wires has a plurality of supporting strands made of a second material. The protective layer covers the surface of the conductive wire and is located between the conductive wire and the plurality of supporting stranded wires. The plurality of supporting stranded wires and the protective layer are conductive, and the protective layer is made of a third material. The first material, the second material and the third material are different from each other.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: May 3, 2022
    Assignee: Radiant Opto-Electronics Corporation
    Inventors: Guo-Hao Huang, Shang-Chia Liu, Chun-Yi Sun
  • Patent number: 11117784
    Abstract: A belt for an elevator system includes a plurality of tension members arranged along a belt width and extending longitudinally along a length of the belt. Each tension member includes a plurality of first fibers, and a plurality of second fibers different from the first fibers dispersed into the first fibers. A jacket material at least partially encapsulates the plurality of tension members. An elevator system includes a hoistway, an elevator car located in the hoistway and movable therein, and a belt operably connected to the elevator car to suspend and/or drive the elevator car along the hoistway. The belt includes a plurality of tension members arranged along a belt width and extending longitudinally along a length of the belt. Each tension member includes a plurality of first fibers and a plurality of second fibers different from the first fibers dispersed into the first fibers.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: September 14, 2021
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Wenping Zhao, Daniel A. Mosher, Chen Qian Zhao
  • Patent number: 10443191
    Abstract: The present invention relates to a rope for an elevator. The rope for the elevator comprises: a center strand formed by twisting a plurality of wires; inner layer strands formed by twisting the plurality of wires and arranged along the outer periphery of the center strand; and outer layer strands formed by twisting the plurality of wires and arranged along the outer periphery of the inner layer strands, wherein ten of each of the inner layer strands and the outer layer strands are prepared, the diameter of the center strand, the diameter of the inner layer strand and the diameter of the outer layer strand are respectively 0.33-0.35 times, 0.13-0.15 times and 0.22-0.24 times as large as the diameter of a first imaginary circle circumscribed around the outer layer strands, and a fill factor is 64-67%.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: October 15, 2019
    Assignee: Kiswire Ltd.
    Inventors: Sung Hee Hong, Yeon Hwan Bae
  • Patent number: 10173470
    Abstract: Provided is a steel cord for reinforcing a rubber article in which both the rubber penetrability (rust prevention), and the cord strength and shear resistance are highly achieved. Provided is a steel cord for reinforcing a rubber article including: one core strand 11 having a layered-twisted structure formed by twisting a plurality of steel filaments 1; and a plurality of sheath strands 12 having a layered-twisted structure formed by twisting a plurality of steel filaments 2, wherein the sheath strands are twisted around the core strand. An average value Lc of an amount of clearance between outermost layer sheath filaments constituting an outermost layer sheath of the core strand is from 0.073 to 0.130 mm, and the number of the outermost layer sheath filaments is from 7 to 10.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: January 8, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Yusuke Nozaki
  • Patent number: 9150984
    Abstract: Method of manufacturing a multi-layer metal cord having a plurality of concentric layers of wires, comprising one or more inner layer(s) and an outer layer, of the type “rubberized in situ. The method includes the following steps: at least one step of sheathing at least one inner layer with the rubber or the rubber composition by passing through at least one extrusion head; and an assembling step in which the wires of the outer layer are assembled around the inner layer adjacent to it, in order to form the multi-layer cord thus rubberized from the inside. The rubber is an unsaturated thermoplastic elastomer extruded in the molten state, preferably a thermoplastic elastomer of the thermoplastic stirene (TPS) elastomer type such as an SBS, SBBS, SIS or SBIS block copolymer for example.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: October 6, 2015
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Michelin Recherche et Technique S.A.
    Inventors: Emmanuel Custodero, Sébastien Rigo, Jérémy Toussain
  • Publication number: 20150033694
    Abstract: A wire strand (10) comprises a plurality of wires (12, 16, 20). The wires comprise a central king wire (12), a first layer (14) of wires (16) arranged around the king wire, and a second layer (18) of wires (20) arranged around the first layer. The king wire is formed of steel having a carbon content of at least 0.3 wt %. Each wire of the first layer is formed of steel having a carbon content which is less than the carbon content of the king wire. Each wire of the second layer is formed of steel having a carbon content which is greater than, or the same as, the carbon content of the wires of the first layer.
    Type: Application
    Filed: February 13, 2013
    Publication date: February 5, 2015
    Inventor: Hugh David Facey
  • Publication number: 20140298770
    Abstract: Provided is a metal filament body connecting method in which a connecting operation is easy and a metal filament body connecting device which is lightweight and has excellent portability. Provided is a metal filament body connecting method of connecting facing metal filament bodies 20. A pair of fixing members 1 fixing the facing metal filament bodies 20, and a rotating body 2 in which a cutout 2A is arranged between the pair of fixing members 1 are arranged; both end portions of a parallel portion 20A of a metal filament body formed by juxtaposing the facing metal filament bodies 20 are fixed by the pair of fixing members 1; an approximately central portion of the parallel portion 20A of the metal filament body is arranged in a cutout 2A of the rotating body 2; and then, the facing metal filament bodies 20 are twisted together by rotating the rotating body 2.
    Type: Application
    Filed: October 30, 2012
    Publication date: October 9, 2014
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Eiji Kudou, Toshihiro Kami
  • Patent number: 8720176
    Abstract: Method of manufacturing a metal cord with three concentric layers (C1, C2, C3), of the type rubberized in situ, i.e.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: May 13, 2014
    Assignees: Michelin Recherche et Technique S.A., Compagnie Generale des Etablissements Michelin
    Inventors: Thibaud Pottier, Jacques Gauthier, Jérémy Toussain
  • Publication number: 20130220505
    Abstract: Metal cord with a plurality of concentric layers, of the type rubberized in situ, i.e. a cord that is rubberized from the inside, during its actual manufacture, with a rubber known as a filling rubber, in which all or some of the gaps situated between the wires of the cord contain a thermoplastic elastomer of the unsaturated type, particularly an unsaturated thermoplastic stirene (TPS) elastomer such as an SBS, SBBS, SIS or SBIS block copolymer for example. Such a thermoplastic elastomer, used in the molten state, presents no problems of parasitic stickiness if the filling rubber overspills out of the cord following manufacture; its unsaturated and therefore (co)vulcanizable nature makes it extremely compatible with the diene rubber matrices, notably natural rubber matrices as conventionally used as calendering rubber in the metal fabrics intended for reinforcing tires.
    Type: Application
    Filed: May 6, 2011
    Publication date: August 29, 2013
    Applicants: Michelin Recherche et Technique S.A., Compagnie Generale Des Etablissements Michelin
    Inventors: Thibaud Pottier, Sébastien Rigo, Jérémy Toussain
  • Patent number: 8402732
    Abstract: The twisted cable is produced by entwisting plural surround wires together on a central wire. The surround wires have several different sizes. The surround wires are arranged in a particular arrangement so as to reduce elongation when stretch force is exerted on the twisted cable. In addition, the outer surround wires have smoothened outer surfaces, so that the twisted cable has smooth and satiny outer surface. Friction and abrasion caused by pulling the twisted cable is reduced.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: March 26, 2013
    Inventor: Yuan-Hung Wen
  • Publication number: 20120298281
    Abstract: The present invention relates to a three-layered metal cable of construction L+M+N usable as a reinforcing element for a tire carcass reinforcement, comprising an inner layer C1 having L wires of diameter d1 with L being from 1 to 4, surrounded by an intermediate layer C2 of M wires of diameter d2 wound together in a helix at a pitch p2 with M being from 3 to 12, said layer C2 being surrounded by an outer layer C3 of N wires of diameter d3 wound together in a helix at a pitch p3 with N being from 8 to 20, said cable being characterised in that a sheath formed of a cross-linkable or cross-linked rubber composition based on at least one diene elastomer covers at least said layer C2. The invention furthermore relates to the articles or semi-finished products made of plastics material and/or rubber which are reinforced by such a multi-layer cable, in particular to tires used in industrial vehicles, more particularly heavy-vehicle tires and their carcass reinforcement plies.
    Type: Application
    Filed: July 17, 2012
    Publication date: November 29, 2012
    Applicant: MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventors: Henri Barguet, Alain Domingo, Arnaud Letocart, Thibaud Pottier
  • Patent number: 8250844
    Abstract: A cable includes a first layer of wire helically wound to define a lumen having a lumen diameter. A second layer of wire is helically wound over the first layer. A first end segment of the second layer is configured with a plurality of strands that are fused together. A second end segment of the second layer is configured with a plurality of strands that are fused together.
    Type: Grant
    Filed: August 17, 2009
    Date of Patent: August 28, 2012
    Assignee: W. C. Heraeus GmbH
    Inventor: Jacob E. Markham
  • Publication number: 20120174557
    Abstract: Multistrand metal cord (C-1) having two layers (Ci, Ce) of J+K construction, which can especially be used for reinforcing tires for industrial vehicles, consisting of a core comprising J strands forming an inner layer (Ci), J varying from 1 to 4, around which core are wound, in a helix, with a helix pitch PK of between 20 and 70 mm, K outer strands forming an outer layer (Ce) around said inner layer (Ci), each outer strand: comprising a cord (10) having two layers (C1, C2) of L+M construction, rubberized in situ, comprising an inner layer (C1) comprised of L wires (11) of diameter d1, L varying from 1 to 4, and an outer layer (C2) of M wires (12), M being equal to or greater than 5, of diameter d2, which are wound together in a helix with a pitch p2 around the inner layer (C1); and having the following characteristics (d1, d2 and p2 being expressed in mm): 0.10<d1<0.50; 0.10<d2<0.
    Type: Application
    Filed: July 5, 2010
    Publication date: July 12, 2012
    Inventors: Sandra Boisseau, Henri Barguet, Thibaud Pottier
  • Publication number: 20120060963
    Abstract: The present invention relates to plied silver yarn using silver wire as thread, wherein the silver wire is entirely made of silver (Ag) or a silver alloy, to achieve antimicrobial properties and conductivity, as well as to functional fabric using same and to a method for producing same. The plied silver yarn of the present invention uses, as a core yarn, any one of at least one strand of silver wire and fiber yarn made from natural fiber or synthetic fiber, and uses the other as winding yarn covering the core yarn, wherein said one strand of silver wire is produced by casting a silver alloy containing pure silver or copper into a wire rod through directional solidification, and making the wire rod into a microfiber having a diameter of 0.015 to 0.05 mm through a pulling process.
    Type: Application
    Filed: May 20, 2010
    Publication date: March 15, 2012
    Applicant: AMOGREENTECH CO., LTD.
    Inventors: Yong Sul Song, Moon Hoe Kim, Min Ho Won
  • Patent number: 8117817
    Abstract: A cable includes a first layer of wire helically wound to define a lumen having a lumen diameter. A second layer of wire is helically wound over the first layer. A first end segment of the second layer is configured with a plurality of strands that are fused together. A second end segment of the second layer is configured with a plurality of strands that are fused together.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: February 21, 2012
    Assignee: W. C. Heraeus GmbH
    Inventors: Jacob E. Markham, Richard W. Koniszczuk
  • Patent number: 7870715
    Abstract: There is provided a steel cord including a plurality of untwisted core filaments of steel aligned in parallel, and a layer of sheath filaments of steel twisted around the core filaments so as to be unevenly distributed around the core filaments, wherein interstices between the filaments are maintained during vulcanization thereby achieving improved rubber penetration (sufficiently adhering rubber to the core filaments). Since the cross sectional length of the steel cord 10 is greater than the minimum cross sectional length, interstices A are maintained between sheath filaments 14 under the tension and pressure p of the surrounding rubber 16 applied to the steel cord 10 during vulcanization. Rubber 16 penetrates into the steel cord 10 through the interstices A, and sufficiently adhere to core filaments 12 to achieve high rubber penetration.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: January 18, 2011
    Assignee: Bridgestone Corporation
    Inventor: Yukimasa Fukuda
  • Publication number: 20100068495
    Abstract: A steel cord (200) is described that is simple and cost effective to produce while solving some particular problems for the reinforcement of elastomer belts such as timing belts or the like. The cord (200) is a single lay cord that comprises a core filament (202), around which a first layer and a second layer of filaments (204, 210, 212) is twisted, all filaments being twisted with the same lay length and direction. By appropriate choice of the lay length, the core filament diameter and the filament diameters of the first layer—the latter being larger or equal to the former—an aggregate gap can form in which intermittently a filament (210?) of the second layer gets entrained. This aggregate gap must be between 40 and 70% of the core filament diameter in order to obtain the desired effect of having a core filament (202) that is deformed with the same lay length and direction as the other filaments (204,210,212). A deformed core filament (202) suppresses the effect of core filament migration.
    Type: Application
    Filed: November 30, 2007
    Publication date: March 18, 2010
    Inventors: Hendrik Rommel, Bert Vanderbeken
  • Publication number: 20100031623
    Abstract: A steel cord comprises more than one steel filament (10). At least some of the steel filaments have a zinc iron alloy layer (14) partially covered with a zinc cover (16). The zinc cover is only present in valleys formed in the zinc-iron alloy layer. The processability and adhesion level in rubber products of the stell cord are increased.
    Type: Application
    Filed: February 12, 2008
    Publication date: February 11, 2010
    Inventors: Bert Vanderbeken, Paul Bruyneel, Wouter Vandenbranden, Stijn Vancompernolle
  • Publication number: 20090088278
    Abstract: An annular metal cord includes an annular core portion formed in an annular shape, and an outer layer portion spirally wound around the annular core portion while running over an annular circumference thereof plural times and covering an outer peripheral surface of the annular core portion. Each of the annular core portion and the outer layer portion are formed by a strand material which is formed by intertwisting a plurality of metal filaments. The annular core portion and the outer layer portion are formed by a continuous strand material.
    Type: Application
    Filed: September 5, 2007
    Publication date: April 2, 2009
    Applicants: SUMITOMO (SEI) STEEL WIRE CORP., SUMITOMO ELECTRIC TOCHIGI CO., LTD.
    Inventors: Hiroshi Sasabe, Hitoshi Wakahara, Yuichi Sano, Kenichi Okamoto
  • Patent number: 7510523
    Abstract: A method for fixing one of a balloon and a tubular member to an object with a thread for a medical equipment, may include covering the object with an end of the one of the balloon and the tubular member, winding the thread at a first pitch in a first direction from an edge of the end of the one of the balloon and the tubular member toward an intermediate position of the one of the balloon and the tubular member, and winding the thread at a second pitch in a second direction opposite to the first direction, the second pitch being shorter than the first pitch.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: March 31, 2009
    Assignee: Fujinon Corporation
    Inventor: Toshio Sakamoto
  • Publication number: 20080236130
    Abstract: In a rope of a type of filling a resin constituting other member between strands, there is provided a wire rope for a running wire capable of promoting fatigue life by reducing a wire breakage at a point of being contacted to a core rope by precisely constraining a movement of a wire and reducing an elongation. A rope having a core rope and a plurality of pieces of side strands arranged at an outer periphery thereof and twisted together, and a resinous spacer interposed between the side strands, in which the core rope includes a rope main body and a resin coating layer outwardly surrounding the core rope main body, the core rope main body and the side strand are separated by the resin coating layer, and the resin spacer is provided with a contour in correspondence with an outer layer wire of the side strand and invades between the wires.
    Type: Application
    Filed: January 4, 2008
    Publication date: October 2, 2008
    Inventors: Ippei Furukawa, Shuji Ida
  • Patent number: 7228681
    Abstract: A steel cord adapted for the reinforcement of elastomers includes: a core steel filament with a diameter dc and coated with a polymer, six intermediate steel filaments with a diameter di smaller than or equal to dc, the intermediate steel filaments being twisted around the core steel filament, ten to eleven outer steel filaments with a diameter do, smaller than or equal to di wherein these outer steel filaments are twisted around the intermediate steel filaments, and the outer steel filaments are preformed in order to allow rubber penetration inside the cord. The core steel filament, the intermediate steel filaments, and the outer steel filaments all have a tensile strength of at least 2600 MPa. The cord has an outer diameter D according to the following formula: D?dc+2×di+2×do+0.1 mm, wherein all diameters are expressed in millimeters (mm).
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: June 12, 2007
    Assignee: NV Bekaert SA
    Inventors: Dirk Meersschaut, Stijn Vanneste, Hans Cauwels
  • Patent number: 7162858
    Abstract: A push-pull cable is provided. The cable includes a central wire, a first set of wires wrapped around the central wire, and a second set of wires wrapped around the first set of wires. A coating is then formed around the second set of wires. Also provided is a method for manufacturing such a wire.
    Type: Grant
    Filed: May 20, 2005
    Date of Patent: January 16, 2007
    Assignee: Teleflex Incorporated
    Inventor: Dennis Graham
  • Patent number: 7135227
    Abstract: Provided is an electrically conductive elastic composite yarn having an elastic member that is surrounded by at least one conductive covering filament. The conductive covering filament has a length that is greater than the drafted length of the elastic member such that substantially all of an elongating stress imposed on the composite yarn is carried by the elastic member. The elastic composite yarn may further include an optional stress-bearing member surrounding the elastic member and the conductive covering filament.
    Type: Grant
    Filed: April 15, 2004
    Date of Patent: November 14, 2006
    Assignee: Textronics, Inc.
    Inventors: Eleni Karayianni, Omero Consoli, George W Coulston, Klaus Joachim Regenstein
  • Patent number: 7089724
    Abstract: A hybrid flexible wire shaft having an inner portion with the characteristics of a push/pull shaft having at least one layer of wire groups helically wound on a core wire at a relatively high pitch angle, and an outer portion with the characteristics of a torsional transmission flexible shaft having two or more layers of wire groups wound on the central portion at a relatively low pitch angle. Each layer of the outer group is wound in a direction opposite to the wind direction of each adjacent layer of that group. In an alternate construction, the high and low pitch portions are reversed and an additional outer layer is provided which is wound in a direction opposite to the outermost layer of the high pitch portion.
    Type: Grant
    Filed: February 7, 2005
    Date of Patent: August 15, 2006
    Assignee: S.S. White Technologies Inc.
    Inventor: Adam R. Black, III
  • Patent number: 6962182
    Abstract: A multi-layer cable having an unsaturated outer layer, usable as a reinforcing element for a crown reinforcement of a tire, comprising a core of diameter d0 surrounded by an intermediate layer (C1) of six or seven wires (N=6 or 7) of diameter d1 wound together in a helix at a pitch p1, this layer C1 itself being surrounded by an outer layer (C2) of P wires of diameter d2 wound together in a helix at a pitch p2, P being less by 1 to 3 than the maximum number Pmax of wires which can be wound in one layer about the layer C1, this cable having the following characteristics (d0, d1, d2, p1 and p2 in mm): (i) 0.28?d0<0.50; (ii) 0.25?d1<0.40; (iii) 0.25?d2<0.40; (iv) for N=6: l.10<(d0/d1)<1.40; for N=7: 1.40<(d0/d1)<1.70; (v) 5.3?(d0+d1)<p1<p2<4.7?(d0+2d1+d2); and (vi) the wires of layers C1 and C2 are wound in the same direction of twist.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: November 8, 2005
    Assignee: Michelin Rechlin et Techerche S.A.
    Inventors: Francois-Jacques Cordonnier, Alain Domingo
  • Patent number: 6837289
    Abstract: A multi-layer cable having an unsaturated outer layer, usable as a reinforcing element for a tire carcass reinforcement, comprising a core of diameter d0 surrounded by an intermediate layer (C1) of four or five wires (M=4 or 5) of diameter d1 wound together in a helix at a pitch p1, this layer C1 itself being surrounded by an outer layer (C2) of N wires of diameter d2 wound together in a helix at a pitch p2, N being less by 1 to 3 than the maximum number Nmax of wires which can be wound in one layer about the layer C1, this cable having the following characteristics (d0, d1, d2, p1 and p2 in mm): 0.08<d0<0.28;??(i) 0.15<d1<0.28;??(ii) 0.12<d2<0.25;??(iii) for M=4: 0.40 <(d0/d1)<0.80;??(iv) for M=5: 0.70<(d0/d1)<1.10; 4.8?(d0+d1)<p1<p2<5.6?(d0+2d1+d2);??(v) the wires of layers C1 and C2 are wound in the same direction of twist.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: January 4, 2005
    Assignee: Michelin Recherche et Technique, S.A.
    Inventors: Francois-Jacques Cordonnier, Alain Domingo, Henri Barguet, Le Tu Anh Vo
  • Patent number: 6766841
    Abstract: A multi-layer cable having an unsaturated outer layer, usable as a reinforcing element for a crown reinforcement of a tire, comprising a core of diameter d0 surrounded by an intermediate layer (C1) of four or five wires (N=4 or 5) of diameter d1 wound together in a helix at a pitch p1, this layer C1 itself being surrounded by an outer layer (C2) of P wires of diameter d2 wound together in a helix at a pitch p2, P being less by 1 to 3 than the maximum number Pmax of wires which can be wound in one layer about the layer C1, this cable having the following characteristics (d0, d1, d2, p1 and p2 in mm): (i) 0.10≦d0<0.50; (ii) 0.25≦d1<0.40; (iii) 0.25≦d2<0.40; (iv) for N=4: 0.40<(d0/d1)<0.80; for N=5: 0.70<(d0/d1)<1.10; (v) 4.8 &pgr;(d0+d1)<p1<p2<5.6&pgr;(d0+2d1+d2); and (vi) the wires of layers C1 and C2 are wound in the same direction of twist.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: July 27, 2004
    Assignee: Michelin Recherche et Technique, S.A.
    Inventors: Francois-Jacques Cordonnier, Alain Domingo, Henri Barguet
  • Patent number: 6748989
    Abstract: A multi-layer cable having an unsaturated outer layer, comprising a core (C0) of diameter d0 surrounded by an intermediate layer (C1) of six or seven wires (M=6 or 7) of diameter d1 wound together in a helix at a pitch p1, surrounded by an outer layer (C2) of N wires of diameter d2 wound together in a helix at a pitch p2, N being less by 1 to 3 than the maximum number Nmax of wires which can be wound in one layer about the layer C1, this cable has the following characteristics (d0, d1, d2, p1 and p2 in mm): (i) 0.14<d0<0.28; (ii) 0.12<d1<0.25; (iii) 0.12<d2<0.25; (iv) for M=6: 1.10<(d0/d1)<1.40; for M=7: 1.40<(d0/d1)<1.70; (v) 5&pgr;(d0+d1)<p1<p2<5&pgr;(d0+2d1+d2); (vi) the wires of layers C1 and C2 are wound in the same twist direction.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: June 15, 2004
    Inventors: Francois-Jacques Cordonnier, Alain Domingo
  • Publication number: 20040108038
    Abstract: A multi-layer cable having an unsaturated outer layer, usable as a reinforcing element for a tire carcass reinforcement, comprising a core of diameter d0 surrounded by an intermediate layer (C1) of four or five wires (M=4 or 5) of diameter d1 wound together in a helix at a pitch p1, this layer C1 itself being surrounded by an outer layer (C2) of N wires of diameter d2 wound together in a helix at a pitch p2, N being less by 1 to 3 than the maximum number Nmax of wires which can be wound in one layer about the layer C1, this cable having the following characteristics (d0, d1, d2, p1 and p2 in mm):
    Type: Application
    Filed: June 24, 2002
    Publication date: June 10, 2004
    Inventors: Francois-Jacques Cordonnier, Alain Domingo, Henri Barguet, Le Tu Anh Vo
  • Publication number: 20040060631
    Abstract: A multi-layer cable having an unsaturated outer layer, usable as a reinforcing element for a crown reinforcement of a tire, comprising a core of diameter d0 surrounded by an intermediate layer (C1) of six or seven wires (N=6 or 7) of diameter d1 wound together in a helix at a pitch p1, this layer C1 itself being surrounded by an outer layer (C2) of P wires of diameter d2 wound together in a helix at a pitch p2, P being less by 1 to 3 than the maximum number Pmax of wires which can be wound in one layer about the layer C1, this cable having the following characteristics (d0, d1, d2, p1 and p2 in mm):
    Type: Application
    Filed: July 3, 2003
    Publication date: April 1, 2004
    Inventors: Francois-Jacques Cordonnier, Alain Domingo
  • Publication number: 20040060275
    Abstract: A multi-layer cable having an unsaturated outer layer, usable as a reinforcing element for a crown reinforcement of a tire, comprising a core of diameter d0 surrounded by an intermediate layer (C1) of four or five wires (N=4 or 5) of diameter d1 wound together in a helix at a pitch p1, this layer C1 itself being surrounded by an outer layer (C2) of P wires of diameter d2 wound together in a helix at a pitch p2, P being less by 1 to 3 than the maximum number Pmax of wires which can be wound in one layer about the layer C1, this cable having the following characteristics (d0, d1, d2, p1 and p2 in mm):
    Type: Application
    Filed: July 3, 2003
    Publication date: April 1, 2004
    Inventors: Francois-Jacques Cordonnier, Alain Domingo, Henri Barguet
  • Patent number: 6630241
    Abstract: A rubber-steel cord composite comprising a steel cord having, in a planar image of the steel cord formed by X-rays passing through the steel cord, a fraction R of the total area occupied by filaments of from 0.45 or more to 0.95 or less in an arbitrarily selected portion of the steel cord having a length of 15 mm in an axial direction of the cord, is provided. The length of 15 mm in an axial direction of the cord means a length of 15 mm in an axial direction of an actual cord and the fraction R of the total area occupied by the filaments is expressed as R=F/A, wherein A represents the total area of the cord and F represents the area of the cord occupied by the filaments. An object of the present invention is to provide a pneumatic tire for passenger cars that shows no separation of the interface of adhesion during use, particularly during use in the run-flat condition, and exhibits excellent durability.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: October 7, 2003
    Assignee: Bridgestone Corporation
    Inventors: Tomohisa Nishikawa, Kazuomi Kobayashi, Kenji Matsuo
  • Patent number: 6530410
    Abstract: As the present invention there is disclosed a pneumatic radial tire comprising a carcass having a smaller tensile rigidity than that of conventional pneumatic radial tires by application of a steel cord having a smaller Young's modulus to the carcass or by application of a smaller amount of a high strength steel cord formed with carcass filaments having a greater tensile strength to the carcass while maintaining the necessary strength of the carcass. In accordance with the present invention, extension of the carcass increases and extension of a belt in the circumferential direction of the tire is suppressed when the tire is inflated by an inner pressure. As a result, compression stress working on the carcass when a vehicle turns decreases and buckling deformation of the steel cord can be prevented. Accordingly, durability is improved.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: March 11, 2003
    Assignee: Bridgestone Corporation
    Inventor: Naohiko Obana
  • Publication number: 20020174645
    Abstract: A hybrid cord which is characterized by
    Type: Application
    Filed: February 25, 2002
    Publication date: November 28, 2002
    Inventors: Gia Van Nguyen, Florence de Boisfleury, Mustafa Goksoy, Robert Edward Lionetti
  • Patent number: 6442922
    Abstract: Disclosed herein are a tire-reinforcing steel cord and a pneumatic radial tire using the same. The tire-reinforcing steel cord includes an inner layer consisting of 3 filaments and an outer layer consisting of 7 or 8 filaments and surrounding the inner layer. The inner layer and the outer layer are twisted in such a manner that they have the same twist direction and the same twist pitch length, whereby the number of the twisting steps in the manufacture of the steel cord is reduced, and also the penetration of rubber into the steel cord is improved such that the steel cord has an improved durability upon application to tires.
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: September 3, 2002
    Assignee: Hankook Tire Co., Ltd.
    Inventor: Yong Sig Han
  • Patent number: 6418704
    Abstract: A wire rope (10) includes a plurality of strands (12). The strands are formed from individual wires or filaments (14). The strands are wound about a central axis. A conduit (16) also extends along said central axis. The conduit has walls that are foraminous and permit radial flow of a lubricant. The lubricating compound is injected into the channel (18) defined by the conduit. The lubricating material migrates through the orifices in the conduit wall and radially outwardly therefrom.
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: July 16, 2002
    Assignee: Utilx Corporation
    Inventors: Glen J. Bertini, Glenn S. Jessen
  • Patent number: 6412263
    Abstract: 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: Grant
    Filed: June 2, 2000
    Date of Patent: July 2, 2002
    Assignee: Hongduk Steel Cord Co., Ltd.
    Inventors: Byung-Ho Lee, Seung-Ho Lim
  • Patent number: 6405774
    Abstract: A rubber reinforcing steel cord of a bundle-twisted+layer-twisted structure obtained by arranging 9 steel filaments around 3 steel filaments each being two-dimensionally wave-like shaped in the lengthwise direction, intertwining all of these steel filaments in one operation to form a bundle-twisted cord, and further arranging 14 steel filaments around the bundle-twisted cord followed by intertwining. Also, a heavy duty pneumatic radial tire using the rubber reinforcing steel cord as the cord of the carcass layer thereof.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: June 18, 2002
    Assignee: The Yokohama Co., Ltd.
    Inventor: Ryuzo Komatsu
  • Patent number: 6381940
    Abstract: A cut-resistant combined yarn is described that includes a wire component. Kinking and knotting of the wire component resulting from stretching of the wire component during knitting is avoided by encasing the wire component within a cut resistant combined yarn that has a higher stretch resistance than the wire component. The combined yarn includes at least one strand of stainless steel, at first non-metallic strand of an inherently cut-resistant material, and a second non-metallic strand of a cut resistant material, a non-cut resistant material or fiberglass. The non-metallic strands are air interlaced with each other to form intermittent attachment areas along the lengths of the strands. At least one or the other of the strands is a multi-filament strand. During air interlacing operation, the two non-metallic strands encase the stainless steel strand in the non-metallic strands at least in some of the zones.
    Type: Grant
    Filed: April 19, 2000
    Date of Patent: May 7, 2002
    Assignee: Supreme Elastic Corporation
    Inventors: Nathaniel H. Kolmes, Della B. Moore, George M. Morman, Jr., Richie D. Phillips, Eric Pritchard
  • Patent number: 6363703
    Abstract: A composite cut-resistant yarn having a fiberglass and wire component a fiberglass core strand having a denier of between about 100 and about 1200 at least a first wire strand wrapped the fiberglass core strand in a first wire strand direction and at least a first non-metallic non-high performance fiber cover strand wrapped around the first wire strand in a first cover strand direction. The yarn does not include high performance constituents, yet is comparable in cut-resistance characteristics.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: April 2, 2002
    Assignee: Supreme Elastic Corporation
    Inventor: Nathaniel H. Kolmes
  • Patent number: 6360522
    Abstract: A filler element is located between each adjacent pair of outer strands of a wire rope and interlocks with the adjacent strands. The filler elements provide the rope with substantially smooth outer surface reducing vibration of the rope passing over a pulley. Filler elements are disclosed consisting of an elastometic or polymeric material having an oriented molecular structure aligned along the filler element and also aligned in a generally radial direction with respect to the rope.
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: March 26, 2002
    Assignee: Bridon PLC
    Inventor: John Mawson Walton
  • Patent number: 6354068
    Abstract: 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: Grant
    Filed: June 22, 2000
    Date of Patent: March 12, 2002
    Assignee: Bridgestone Corporation
    Inventors: Shuichi Onuma, Naohiko Obana, Chihiro Yoshida
  • Patent number: 6353177
    Abstract: A vibration resistant overhead electrical cable is provided, such as a high-voltage transmission line, which has an insulated conductor, the insulation of which has an axially continuously rotating oval or elliptical outer periphery such that the aerodynamic forces acting on the cable act in a continuously changing direction, thereby reducing the tendency of the cable to vibrate. The ratio of the major to minor axis of the oval or elliptical shape is preferably between 1.1 and 1.2 and the length between axial rotations along the longitudinal axis of the cable is usually between about 2.5 and 3.5 meters.
    Type: Grant
    Filed: June 7, 1994
    Date of Patent: March 5, 2002
    Assignee: Nexans Canada Inc.
    Inventor: Walter W. Young
  • Patent number: 6339920
    Abstract: A wire rope for a heavy-load crane, such as a ladle crane is provided that is not only almost rotation-resistant but is also unlikely to be broken by wear and fatigue of wires. The rotation-resisting wire rope has a plurality of side strands. In side each strand, wires are laid in the same direction as the lay of core strand wires, around the periphery of a core strand. The side strands are laid in a direction opposite to the lay of the core strand wires so as to form the wire rope. The side strands preferably have a smaller pitch multiple than a pitch multiple of the wire rope. The ratio between a diameter of the side strands and a diameter of the core strand is preferably about 1.3 to about 1.8. The pitch multiple of strands is preferably about 5 to about 8 and the pitch multiple of the wire rope is preferably about 8 to about 10. Both the core strand and the side strands preferably have shaped wires, having a flattened surface, at an outermost ply.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: January 22, 2002
    Assignee: Kawasaki Steel Corporation
    Inventor: Yasuo Yokoyama
  • Publication number: 20020002815
    Abstract: A wire rope (10) includes a plurality of strands (12). The strands are formed from individual wires or filaments (14). The strands are wound about a central axis. A conduit (16) also extends along said central axis. The conduit has walls that are foraminous and permit radial flow of a lubricant. The lubricating compound is injected into the channel (18) defined by the conduit. The lubricating material migrates through the orifices in the conduit wall and radially outwardly therefrom.
    Type: Application
    Filed: May 29, 2001
    Publication date: January 10, 2002
    Applicant: UTILX Corporation
    Inventors: Glen J. Bertini, Glenn S. Jessen