Including Nonround Cross Section Patents (Class 57/215)
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Patent number: 12148551Abstract: The present disclosure relates to a cable comprising a cable core and an armor, the armor being formed by a plurality of consecutive sections of non-metallic tensile elements wound around the cable core, each section including a first non-metallic tensile element connected to a second non-metallic tensile element of the consecutive sections by a joint comprising a first socket and a second socket, each of said sockets comprising a flat body extending longitudinally along a longitudinal axis (S) between a proximal end and a distal end and comprising an inner through bore between a proximal aperture at the proximal end and a distal aperture at the distal end, the first and second non-metallic tensile elements having an end portion being housed in the inner through bore of respectively the first and second socket by the proximal aperture and secured therein by a bonding material, and each inner through bore being shaped to translationally and rotationally lock the bonding material; an interconnecting device tranType: GrantFiled: March 27, 2023Date of Patent: November 19, 2024Assignee: Prysmian S.p.A.Inventors: Enrico Maria Consonni, Federico Cordo′
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Patent number: 12000086Abstract: A compact steel cord is provided. The cord includes a core-filament I steel wire with a diameter of d0, and four middle-layer M steel wires with a diameter of d1 and eight outer-layer O steel wires with a diameter of d2 that are twisted around the core-filament I steel wire in the same lay direction and the same lay length. Gaps L are reserved between the outer-layer O steel wires, an average width of the gaps L is not smaller than 0.02 mm, and the total size of the gaps L is larger than d0 and smaller than d1. The steel cord of a stable structure can be obtained by controlling the proportion of the sizes of all layers of monofilaments, the rubber coating performance of a tire cord can also be improved, the corrosion resistance, fatigue resistance, impact resistance and adhesion retention of a tire are improved.Type: GrantFiled: May 20, 2021Date of Patent: June 4, 2024Assignee: Jiangsu Xingda Steel Tyre Cord Co., Ltd.Inventors: Xiang Liu, Aiping Wang, Weiming Ma, Nianpeng Zhao, Xianghui Liu, Zengguang Ke, Hengxiang Cao
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Patent number: 11585321Abstract: A wind turbine includes a tower and a vortex-induced vibration (VIV) mitigation system configured on the tower. The VIV mitigation system has a rod attached to an outer surface of the tower and extending longitudinally along an axis of the tower. A plurality of strake support guides extend transversely from and are spaced apart along the rod, the strake support guides comprising a length and a shape to retain a strake supported thereon. A strake is wrapped in a helical pattern around the tower, wherein at least a plurality of wraps of the strake are laid on and supported by the strake support guides.Type: GrantFiled: October 28, 2020Date of Patent: February 21, 2023Assignee: General Electric CompanyInventors: Noah David Liebman, Benjamin Patrick Hallissy
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Patent number: 11401657Abstract: The invention relates to a method for filling in a tension member in particular for conveyor belts, in particular a tension member which is configured as a steel cable. The method is intended to allow the full penetration of the tension member structure.Type: GrantFiled: February 29, 2020Date of Patent: August 2, 2022Assignee: ContiTech Transportbandsysteme GmbHInventors: Florian Lotz, Marius Dreier, Harald Koch, Iordanis Pavlidis
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Patent number: 11352743Abstract: A synthetic fiber rope comprising:—a core, said core being a laid or braided synthetic fiber strand,—a polymer layer, said polymer layer covering said core,—a first layer, said first layer having at least six first synthetic fiber strands laid in a first direction surround said polymer layer, and—a second layer, said second layer having at least twelve second synthetic fiber strands laid in a second direction surround said first layer.Type: GrantFiled: March 22, 2019Date of Patent: June 7, 2022Assignees: BRIDON-BEKAERT ROPES GROUP, BRIDON INTERNATIONAL LIMITEDInventors: Timothy Hunter, Pengzhu Wang, Ian Sinsbury, Adam Jeays, James Taylor
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Patent number: 11069456Abstract: A conductor for power transportation includes an elongated core constructed from a core material and an elongated conductive casing constructed from a conductive material. The elongated conductive casing is positioned around the elongated core and constructed from various layers of wires. Each layer of wires consists of a set of wires which are positioned next to each other, and at least a fraction of these wires being shaped in such a way that for the cross section of the wire, a circumscribed circle is filled only with between 50% and 90% of wire material. The cross section of the wire has a central portion filled with wire and a plurality of protrusions. The shape of these wires is such that the space taken up by these wires in the stack of wires in the layers is substantially cylindrical.Type: GrantFiled: November 21, 2018Date of Patent: July 20, 2021Assignee: LAMIFILInventor: Peter Hermans
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Patent number: 10912929Abstract: A tubular body that includes a plurality of first wires distributed in an annular portion of the tubular body, and a plurality of deformed second wires alternately disposed between each of the plurality of first wires, the plurality of first wires and the plurality of deformed second wires being in an alternately twisted arrangement in a longitudinal direction of the tubular body, where each of the plurality of first wires has a substantially circular shape in a cross section view, and each of the plurality of deformed second wires has a non-circular shape in the cross section view, has an arcuate side portion that receive a part of a side surface of an adjacent wire of the plurality of first wires, and has an annular sector shape protruding in a radial direction in the cross section view of the tubular body.Type: GrantFiled: April 3, 2019Date of Patent: February 9, 2021Assignee: ASAHI INTECC CO., LTD.Inventors: Hiroyuki Nishihara, Aya Takechi
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Patent number: 10640919Abstract: A locked coil wire rope includes a circular steel wire inner layer, a central metal core, and a Z-shaped steel wire outer layer. The central metal core has a structure of 1×19W, 1×19S, 1×26WS, 1×31WS, 1×31SW, 1×49SWS or 1×55SWS. The circular steel inner layer includes at least two circular steel wire layers, and a number of steel wires of circular steel wire layer is no less than 18. The Z-shaped steel wire outer layer includes at least one Z-shaped steel wire layer, and a number of steel wires of the Z-shaped steel wire layer is no less than 51. A capacity expansion framework is further disclosed.Type: GrantFiled: November 29, 2018Date of Patent: May 5, 2020Assignee: Guizhou Wire Rope Incorporated CompanyInventors: Zhongqu Huang, Xiaogang Wang, Xiaoyu He, Zhiyuan Yan, Nan Xia
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Patent number: 10640922Abstract: A hybrid strand includes a core and outer wires arranged around the core, wherein at least a part of the outer wires is compressed, wherein the compressed outer wires include a flattened cross-sectional shape, the outer wires are composed of steel, and the core is a fiber core. A corresponding production method produces such a hybrid strand.Type: GrantFiled: July 21, 2016Date of Patent: May 5, 2020Assignee: TEUFELBERGER SEIL GESELLSCHAFT M.B.H.Inventors: Robert Traxl, Gunter Kaiser, Rudolf Kirth, Bjoern Ernst, Erich Ruehrnoessl, Peter Baldinger
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Patent number: 10501887Abstract: A wire rope has a lubricated core, an inner jacket in contact with the core, and outer strands wrapped around the inner jacket. An outer jacket surrounds the outer strands and contacts the inner jacket to form an integrated jacket. A method of forming an integrated jacket for a wire rope in which an inner jacket is cold applied and an outer jacket is applied by application of molten material to the inner jacket.Type: GrantFiled: May 23, 2017Date of Patent: December 10, 2019Inventor: Bonita Carter
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Patent number: 10352683Abstract: Disclosed are methods and apparatuses for analysis of synthetic ropes, cords, slings, cables and belts (collectively termed “ropes”) including but not limited to ropes for bearing loads as well as fiber optic cables. The ropes are provided with one or more elements for magnetic detection, wherein the magnetic detection elements each comprise a metal fiber or an appropriately treated synthetic fiber. The methods and apparatuses encompass detection of induced or residual magnetism or magnetic flux in the magnetic detection element(s), to sense for example lay length and/or damage, breakage or wear of the magnetic detection element(s), indicative of the condition of the rope.Type: GrantFiled: March 23, 2015Date of Patent: July 16, 2019Assignee: Her Majesty the Queen in Right of Canada as Represented by the Minister of Natural Resources CanadaInventor: Sylvain Ouellette
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Patent number: 10138597Abstract: An operating wire has a multi-twisted structure constituted by twisting side strands, each formed by twisting element wires together around a core strand. A side element wire of the side strand faces the outside of the operating wire in the radial direction at a site located on the outer circumference of the operating wire and has a flattened surface where a flat portion provided in a portion of the side element wire in the circumferential direction extends in the X axis direction, the length in the X axis direction of the flattened surface being 4.8-11.0 times the diameter of the side element wire, and the pitch magnification of the side strand being 7.0-12.0 times the diameter.Type: GrantFiled: March 12, 2015Date of Patent: November 27, 2018Assignee: HI-LEX CORPORATIONInventors: Akira Tsuda, Tomo Sakaguchi
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Patent number: 9970137Abstract: A vascular occlusion device for effectively occluding blood flow and pressure to a vascular defect while simultaneously not occluding blood flow and pressure to adjacent vasculature is provided. The vascular occlusion device can include a tubular member that has variable porosity regions along its length. The tubular member can be formed of a plurality of filaments that have different cross-sectional shapes along their length that are indexed to the variable porosity regions along the length of the tubular member.Type: GrantFiled: October 14, 2015Date of Patent: May 15, 2018Inventor: Juan A. Lorenzo
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Patent number: 9761352Abstract: A stranded conductor (2) including a specific number of a first type of wire (5) which, in cross-section of the stranded conductor, are arranged in a hexagonal pattern around a central wire in at least two layers. The wires arranged at the vertices of the hexagonal pattern are of a second type of wire having in principle a smaller diameter than the first type of wires. The interstitial spaces (10) between the first and the second wires are filled by a sealing agent (3).Type: GrantFiled: March 6, 2014Date of Patent: September 12, 2017Assignee: Huber+Suhner AGInventor: Thomas Cantz
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Patent number: 9573792Abstract: An elevator may include: a hoisting machine; a set of hoisting ropes; a traction sheave that comprises a plurality of grooves; and diverting pulleys. The hoisting machine may engage the set of ropes via the traction sheave. Each groove may have an opening for receiving an individual rope. Each rope may include steel wires of circular, non-circular, or circular and non-circular cross-section, twisted together to form strands. The strands of each rope may be twisted together to form the respective rope. A thickness of each rope may be greater than or equal to about 2.5 mm and less than or equal to about 8 mm. An average of wire thicknesses of the steel wires may be greater than or equal to 0.1 mm and less than or equal to 0.4 mm. The strength of the steel wires may be greater than 2,300 N/mm2 and less than 3,000 N/mm2.Type: GrantFiled: November 18, 2004Date of Patent: February 21, 2017Assignee: KONE CorporationInventors: Esko Aulanko, Jorma Mustalahti, Pekka Rantanen, Simo Makimattila
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Patent number: 9470657Abstract: The invention relates to a method and apparatus for measuring lay length of a wire rope having a number or external strands to form a rope having spiral grooves in the surface between the strands. A magnetic flux circuit is generated, part of which is formed within a region of the advancing wire rope. Variations of magnetic field around the region of the rope or variations of magnetic flux entering or leaving the rope are sensed by at least two sensors arranged around the rope. Signals from the sensors are subtractively combined to eliminate variations due to off-axis movements of the rope, and the combined signals reveal an oscillating pattern due to the undulating surface of the rope. Linking the oscillating pattern to distance along the rope reveals the lay length, which corresponds to a number of oscillations which is the same as the number of strands at the surface.Type: GrantFiled: October 4, 2012Date of Patent: October 18, 2016Assignee: Her Majesty the Queen in Right of Canada as Represented by the Minister of Natural Resources CanadaInventor: Sylvain Ouellette
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Patent number: 9315363Abstract: An elevator may include: a hoisting machine; hoisting ropes; a traction sheave that includes grooves; a counterweight; an elevator car; counterweight guide rails; and elevator car guide rails. Each hoisting rope may include steel wires of circular, non-circular, or circular and non-circular cross-section, twisted together to form strands. The strands of each hoisting rope may be twisted together to form the hoisting rope. A thickness of each hoisting rope may be greater than or equal to 2.5 mm and less than or equal to 8 mm. Each hoisting rope individually may contact one of the grooves. A cross-sectional area of the steel wires may be greater than 0.015 mm2 and less than 0.2 mm2. The strength of the steel wires may be greater than 2300 N/mm2 and less than 2700 N/mm2.Type: GrantFiled: June 3, 2003Date of Patent: April 19, 2016Assignee: KONE CORPORATIONInventors: Esko Aulanko, Jorma Mustalahti, Pekka Rantanen, Simo Makimattila
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Patent number: 9315938Abstract: An elevator may include: a hoisting machine; hoisting ropes; a traction sheave that includes grooves; and diverting pulleys. Each of the hoisting ropes may individually contact one of the grooves. Each hoisting rope may include steel wires of circular, non-circular, or circular and non-circular cross-section, twisted together to form strands. The strands of each hoisting rope may be twisted together to form the hoisting rope. A thickness of each of the hoisting ropes may be greater than or equal to 2.5 mm and less than or equal to 8 mm. A cross-sectional area of the steel wires of the hoisting ropes may be greater than 0.015 mm2 and less than 0.2 mm2. The strength of the steel wires may be greater than 2,700 N/mm2 and less than 3,000 N/mm2.Type: GrantFiled: June 3, 2003Date of Patent: April 19, 2016Assignee: KONE CORPORATIONInventors: Esko Aulanko, Jorma Mustalahti, Pekka Rantanen, Simo Makimattila
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Publication number: 20150068655Abstract: Disclosed is a tire-reinforcing steel cord for a radial tire. The tire-reinforcing steel cord has a double layer structure including a first-layer core and a second-layer core provided on the surface of the first-layer core. The first-layer core has an elliptical or rectangular cross section. The tire-reinforcing steel cord can improve processability, fatigue characteristics, and rolling resistance performance of a tire, resulting in improved fuel efficiency. A radial tire using the tire-reinforcing steel cord is also disclosed.Type: ApplicationFiled: April 9, 2014Publication date: March 12, 2015Applicant: HANKOOK TIRE CO., LTD.Inventors: Kwan Woo JUNG, Il Yong PARK, Kum Kang HWANG, Ill Soon JANG, Ji Wan LEE, Mi Jung LEE
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Publication number: 20140260174Abstract: A method of constructing a wire rope from plural outer strands and a core, the core having one or more core strands, each of the one or more core strands having plural core wires, the method comprising: swaging the core to laterally compress the core to an extent sufficient to cause concave deformation of at least some of the plural core wires; and closing the plural outer strands over the core to produce the wire rope.Type: ApplicationFiled: March 14, 2014Publication date: September 18, 2014Applicant: 1735729 Alberta Ltd.Inventor: Kim Cavallin
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Patent number: 8677725Abstract: The invention pertains to the production of cables and can be used for reinforcing single-block constructions and other articles made of concrete. The purpose of the invention is to create a self-rectifying reinforcing member. The reinforcement cable comprises a central wire and layer-forming wires spirally wound around the same and having a periodical profile. A periodical profile is applied on the outer section of the surface of the layer-forming wires and is made in the form of inclined protrusions above the generatrix of the crimped surface of the cable. The sections of the surface of the layer-forming wires in contact with other wires are made in the form of spirally-arranged planar flats.Type: GrantFiled: October 11, 2010Date of Patent: March 25, 2014Assignee: Limited Liability Company “Armasteel”Inventors: Lev Markovich Zaretsky, Veniamin Alexandrovich Kharitonov, Yuriy Anatolyevich Dryomin
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Patent number: 8496231Abstract: A steel rope safety system includes at least one steel rope having at least one strand, and the at least one rope or at least one strand is compacted. Further, a method is provided for making a steel rope safety system comprising the step of providing at least two wires, the step of stranding the wires thereby forming a strand for a rope and the step of compacting the strand. The steel rope safety system includes a guardrail system having vertical poles and horizontal compacted ropes which are held in place by hooks. The steel rope safety system may include non-round shaped, such as trapezoidal shaped compacted wires. There is likewise provided the use of compacted steel ropes as impact reducing material.Type: GrantFiled: October 12, 2012Date of Patent: July 30, 2013Assignee: NV Bekaert SAInventors: Xavier Amils, Dale King
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Patent number: 8286949Abstract: A steel rope safety system includes at least one steel rope having at least one strand, and the at least one rope or at least one strand is compacted. Further, a method is provided for making a steel rope safety system comprising the step of providing at least two wires, the step of stranding the wires thereby forming a strand for a rope and the step of compacting the strand. There is likewise provided the use of compacted steel ropes as impact reducing material.Type: GrantFiled: March 8, 2010Date of Patent: October 16, 2012Assignee: NV Bekaert SAInventors: Xavier Amils, Dale King
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Publication number: 20100043381Abstract: One aspect of this invention concerns a multi-strand steel wire rope (28, 32, 36, 46, 50) comprising multiple strands (3, 10, 38) laid up helically on a core (30, 34,), characterised in that at least some of the strands are deep strands (10, 38), i.e. strands with a heightwidth ratio greater than unity. Another aspect of the invention concerns the deep strand (10, 38) itself.Type: ApplicationFiled: November 1, 2007Publication date: February 25, 2010Inventor: Michiel Nicolaas Van Zyl
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Publication number: 20100005774Abstract: 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: ApplicationFiled: August 28, 2006Publication date: January 14, 2010Applicant: Bridgestone CorporationInventor: Yukimasa Fukuda
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Patent number: 7322220Abstract: An apparatus for manufacturing a trapezoidal wire using two-set shaping rollers has a body rotating about a central axis at a predetermined speed, a plurality of first shaping roller sets installed along an outer circumference of the body, each first shaping roller set including an upper roller and a lower roller and a shaping portion, into which a wire is inserted to be processed, between the upper roller and the lower roller, and a plurality of second shaping roller sets arranged after the first shaping roller sets along the outer circumference of the body and in a direction in which the wire moves, each second shaping roller set comprising an upper roller and a lower roller and a shaping portion, into which the wire is inserted to be processed again, between the upper roller and the lower roller, wherein wires processed by the first and second shaping roller sets while passing therethrough are stranded by the rotating body.Type: GrantFiled: December 27, 2006Date of Patent: January 29, 2008Assignee: LS Cable Ltd.Inventors: Ki-hong Park, Seon-tae Kim, Sang-jun Bae, Tae-jung Lee
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Patent number: 6964625Abstract: A game ball including a casing and a lacing. The casing has a laced region. The lacing is coupled to the laced region of the casing. The lacing has an exposed surface comprised of an outer material that is compressible, resilient, and tactile. The outer material has a modulus of elasticity of between 14 and 170 kg/cm2 and a tensile strength between 100 and 650 kg/cm2. At least a portion of the lacing can have an exposed pebbled surface.Type: GrantFiled: October 19, 2002Date of Patent: November 15, 2005Assignee: Wilson Sporting Goods Co.Inventors: Kevin J. Murphy, Douglas G. Guenther
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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: 6360522Abstract: 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: GrantFiled: August 16, 2000Date of Patent: March 26, 2002Assignee: Bridon PLCInventor: John Mawson Walton
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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: 6334293Abstract: The invention relates to a composite cord (10) for reinforcement of elastomers comprising a core (12) of a high polymer material, a first layer of steel filaments (14) twisted around said core and a second layer of steel filaments (16) twisted around said first layer. The polymer material is present in a sufficient volume to create gaps between adjacent filaments of the first layer and possibly also between the filaments of the second layer. The composite cord is characterized by a decreased fretting of the steel filaments.Type: GrantFiled: February 18, 2000Date of Patent: January 1, 2002Assignee: N.V. Bekaert S.A.Inventors: Horst Poethke, Steven Wostyn, Stijn Vanneste
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Patent number: 6308508Abstract: A steel cord for reinforcement of a radial tire and a radial tire employing the same are disclosed. The steel cord is made of more than three steel filaments of which one or two filaments are regularly twisted, the other filaments are open-twisted and each filament is twisted in same direction. Each steel filament using carbon steel has the carbon content of 0.7 to 0.96 wt %, the tensile strength of the filament is in the range of 260 to 380 kgf/mm2, the twisting pitch is 10 to 20 mm, and each filament is plated with brass. The topping characteristic is improved and the uniformity of tire is enhanced.Type: GrantFiled: September 9, 1999Date of Patent: October 30, 2001Assignee: Hankook Tire Co., Ltd.Inventor: Yong Sik Han
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Publication number: 20010017027Abstract: The wire rope of this invention has at most 18 outer strands and an independent wire rope core, with the strands of the core being laid in the opposite direction to the outer strands of the rope, and a nylon jacket is provided between the core and the outer strands of the wire rope.Type: ApplicationFiled: February 9, 2001Publication date: August 30, 2001Inventor: Joseph Misrachi
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Patent number: 5946898Abstract: A wire rope including a core rope having a number of strands each made of a number of wires, and a number of outer strands closed on the core rope. Each strand of the core rope has a contact section where two or more wires of the strand of the core rope come into contact with the closed outer strand. A total of contact section rates Tz is 20 percent or more of a circumference of a circumscribed circle of the core rope: Tz (%)=Ti/C.times.100, wherein Tl denotes a length of a circumferential component of the contact section, "C" denotes a length of the circumference of the circumscribed circle of the core rope. A non-contact section rate Gz is below 20 percent of the circumference of the circumscribed circle of the core rope: Gz (%)={100-(n.times.Tz)}/n, wherein "n" denotes the number of strands.Type: GrantFiled: July 28, 1997Date of Patent: September 7, 1999Assignee: Shinko Kosen Kogyo Kabushiki KaishaInventors: Mikio Kurata, Toshihiko Sabae, Hirofumi Ueki
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Patent number: 5738466Abstract: A ribbed flexible member for casting into an anchorage medium includes a central strand with outer wires extending helically about the strand. Parts of the exposed surfaces of some of the outer wires are indented in a non-axial direction, those parts being distributed along the strand.Type: GrantFiled: July 26, 1995Date of Patent: April 14, 1998Assignee: Bridon plcInventors: Peter Stuart Ashmore, John Mawson Walton
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Patent number: 5711143Abstract: An overhead cable provided with a plurality of segment strands of a sector-shaped cross-section twisted at the outermost layer and having grooves of a substantially arc-shaped cross-section at the surface at the adjoining portions of the segment strands. Also, a low sag, low wind load cable provided with tension-bearing cores comprised of strands having a linear expansion coefficient of -6.times.10.sup.-6 to 6.times.10.sup.-6 /.degree.C. and an elastic modulus of 100 to 600 PGa and with a plurality of sector-shaped cross-section segment strands twisted around the outermost circumference of the cable including the tension-bearing cores comprised of a super-high-heat resisting aluminum alloy or extra-high heat resisting aluminum alloy, grooves of a substantially arc-shaped cross-section being provided at the surface at adjoining portions of the twisted segment strands. This enables the wind load to be reduced. Further, a low wind load cable can be easily fabricated at a low cost.Type: GrantFiled: December 1, 1995Date of Patent: January 27, 1998Assignees: The Kansai Electric Power Co., Inc., The Furukawa Electric Co, Ltd.Inventors: Takeo Munakata, Jun Katoh, Naoshi Kikuchi, Naoyoshi Shimokura, Yuji Ishikubo
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Patent number: 5688597Abstract: A tire cord which is improved in rubber penetration. The cord has at least four filaments twisted together so as to form a core and a sheath surrounding the core. The filaments change place repeatedly along the longitudinal direction of the cord such that one of the filaments forms the core in a portion, but in a different portion of the cord, the same filament forms part of the sheath.Type: GrantFiled: August 1, 1995Date of Patent: November 18, 1997Assignee: Sumitomo Rubber Industries, Ltd.Inventor: Masatsugu Kohno
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Patent number: 5449861Abstract: The present invention provides a wire for a press-connecting terminal which has a high flexibility, and achieves a high reliability for a connection portion at the time of press-connection, and also provides a method of producing a conductor of such a wire. The wire provides a stranded conductor and an insulator covering the conductor. Wire elements of the stranded conductor are concentrically twisted in layers in the same direction at the same pitch, and the stranded conductor is compressed into a circular cross-section in such a manner that a space factor of the cross-section of the conductor is not less than 99%. The present invention also provides a multi-layer compressed concentric stranded conductor which enables a uniform compression of a base stranded wire.Type: GrantFiled: February 24, 1994Date of Patent: September 12, 1995Assignee: Vazaki CorporationInventors: Toshihiro Fujino, Tamotsu Nishijima
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Patent number: 5418333Abstract: A method of manufacture and a resultant cable structure of elliptical stranded cable which optimizes the use of existing conventional stranding machines. In accordance with the present invention, one or more layers of shaped, non-circular, wires are interposed to provide support between the inner core of substantially round wires each having essentially the same diameter and the outer layer of round wires of different diameters, which outer layer includes round wires of different diameters which are arranged to provide the minor and major axes of the elliptical cable. The shaped wires are preferably trapezoidal in shape. Alternatively, the shaped wires may be arcuately shaped elliptical wires subtending an angle determined by dividing 360.degree. by the number of shaped wires (for example, 30.degree. for a twelve wire layer) and having an aspect ratio (ratio of major axis X dimension to minor axis Y dimension) sufficient to provide support between the inner core and outer layer of round wires.Type: GrantFiled: July 8, 1993Date of Patent: May 23, 1995Assignee: Southwire CompanyInventor: Eugene T. Sanders
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Patent number: 5307615Abstract: Flexible tension member includes a helical bundle of substantially identical elongate elements. Each element inside the bundle is in contact with six adjacent elements, and the lay length of the helical bundle is at least 30 times its diameter. Each element is a strand including wires extending helically around the axis of the strands and substantially all of the strands have a helical lay direction opposite to the helical lay direction of the bundle.Type: GrantFiled: December 26, 1991Date of Patent: May 3, 1994Assignee: Bridon PlcInventors: John M. Walton, Yeung C. Tong
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Patent number: 5260516Abstract: Concentric Compressed Unilay Stranded Conductors are formed of certain combinations of compressed wires, such as 1+7+12, 1+6+11 or 1+7+12+17, which have nominally equal diameters. The combinations of conductors or wires are selected so that the number of wires in any two adjacent layers are not divisible by a common number with the exception of the integer one. Compression of wires in one or more layers is such as to provide area reductions within the range from 0 to approximately 19% for the layers affected.Type: GrantFiled: April 24, 1992Date of Patent: November 9, 1993Assignee: Ceeco Machinery Manufacturing LimitedInventor: Andrew Blackmore
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Patent number: 5171942Abstract: An oval or elliptical shaped overhead conductor that is twisted along its length to provide a continuously varying profile to the wind. A single core is comprised of a circular center wire wrapped by circular wires and the core is surrounded or encased by one or more layers of wire strands, including strands of different size from that of the core wires. Each layer is helically wound in a direction opposite to the underlying layers. The surrounding strands may be circular, with the strand sizes symmetrically arranged to result in a substantially oval or elliptical cross-section. Alternatively, the strands may be shaped into symmetrically arranged non-circular arcuate cross-sections, which when wound together result in an oval or elliptical conductor cross-section. The core strands are each circular or round wires having the same diameter, with the result that the core is easy and inexpensive to manufacture.Type: GrantFiled: February 28, 1991Date of Patent: December 15, 1992Assignee: Southwire CompanyInventor: Wilber F. Powers
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Patent number: 5099902Abstract: A pneumatic tire bead is formed into a spiral coil consisting of a plurality of convolutions or turns of wire. The wire may be round, square, oval or hexagonal in cross section. A crimp or offset bend is made in each of the convolutions a distance of one wire width or a fraction of the wire width in each full 360 degree wire turn such that the ends of the bead wire permit the bead side walls to remain in flat parallel planes. This offset relationship reduces nonuniformity in the tire heretofore produced by spirally wound wire beads. The bead wire can be wound in a vertical plane or in a radial spiral clock-like spring fashion. In another embodiment a pair of mirror image offset coils are joined together to form a composite bead preferably for use in heavy duty applications. In still another embodiment a single flat hoop may be placed between a pair of mirror image offset coils to increase resistance to circumferential distortion.Type: GrantFiled: December 21, 1990Date of Patent: March 31, 1992Assignee: Bridgestone/Firestone, Inc.Inventor: Louis W. Shurman
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Patent number: 4915490Abstract: A crush-resistant tube for a plastics packaged optical fibre (1, 2) is formed by helically stranding together five or more non-circular cross-section wires (3) which are created from circular cross-section wires during the stranding operation.Type: GrantFiled: June 8, 1989Date of Patent: April 10, 1990Assignee: STC PLCInventors: Melvin M. Ramsay, Philip W. Black, Idwal D. L. Jones
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Patent number: 4878343Abstract: A composite reinforcing rope is made of a cylindrical core of twisted filaments of aromatic polyamides around which a plurality of steel wires of a rectangular configuration are coiled. The steel wires are wound side-by-side in one layer. Each wire is twisted around its own axis to such a degree that its broader side fully engages the periphery of the polyamide core. The edges of respective wires are rounded whereby the convex narrow dides of adjoining wires contact one another substantially along a line.Type: GrantFiled: April 27, 1988Date of Patent: November 7, 1989Assignee: AKZO BM Arnhem, The NetherlandsInventors: Wolfgang Weidenhaupt, Gunther Wepner, Peter Dismon, Mattheus G. Remijn
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Patent number: 4843696Abstract: A method and apparatus for the high speed reshaping of round wire as it exits a drawing machine, but prior to its being collected on a bobbin or a stempack. The shape imparted to individual wires is such that as the preshaped wires are applied to a core by a stranding machine, a cable results in which there is substantially no interstitial space between the wires which add excessive bulk.Type: GrantFiled: May 11, 1987Date of Patent: July 4, 1989Assignee: Southwire CompanyInventors: Bobby C. Gentry, Bobby G. Workman, Wilber F. Powers, Jr., Gary W. Bradley
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Patent number: 4809492Abstract: The twistless and/or weakly twisted wire rope or cable with the many strand many layer structure comprises a core rope and a cover layer stranded on the core rope in an opposite stranding direction. The core rope is made exclusively from substantially circular strands and the cover layer is made exclusively from only one layer of substantially flat strands.Type: GrantFiled: September 11, 1987Date of Patent: March 7, 1989Assignee: Vereinigte Drahtseilwerke GmbHInventor: Helmuth Fischer
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Patent number: 4782196Abstract: A support strand is formed of a non-extensible thread wound around an elastic thread in order to restrain the extension of the non-extensible thread within such a limit that the coil of the wound, non-extensible thread can follow movement of the elastic thread. A signal transmitting strand is further wound around the outer surface of the support strand to form the composite strand.Type: GrantFiled: May 25, 1984Date of Patent: November 1, 1988Assignee: Maruichi Sangyo Kabushiki KaishaInventor: Ryouichi Ukai
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Patent number: 4778246Abstract: A high tensile strength transmission cable having a plurality of main compacted strands. The strands surround, and are adjacent to, an uncompacted and moveable core which may form or contain one or more transmission elements. A method for making such a high strength transmission cable includes the steps of compacting the cable formed by a plurality of pre-compacted strands wound around a hard core wire, opening the strands to replace the hard core wire with a soft core containing transmission elements, and then closing the strands.Type: GrantFiled: May 15, 1985Date of Patent: October 18, 1988Assignee: Acco Babcock Industries, Inc.Inventor: David W. Carroll
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Patent number: 4763466Abstract: A steel cord comprising at least 10 metal filaments and having an elongation of 0.015-0.045% under a load of 0.5 kgf, an elongation of 0.025-0.060% under a load 1 kgf, and an elongation of 0.060-0.114% under a load of 4 kgf, assuming that the elongation under a load of 0.05 kgf is 0%, has a soft twist construction and is suitable to be used in the carcass of a radial tire for truck and bus.Type: GrantFiled: September 5, 1986Date of Patent: August 16, 1988Assignees: Kawasaki Steel Corporation, Kawatetsu Wire Products Co., Ltd.Inventors: Hideo Abe, Takaaki Hira, Toru Sasaki, Keiji Kumagai, Kunihiko Kataoka, Takashi Sasaki