With Core Other Than Wire Patents (Class 57/220)
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Patent number: 11655586Abstract: A cable as may be used in a tire, including a pneumatic tire. The cable is constructed in a manner that can provide a desired stiffness to a tire as well as a certain amount of structural elongation. The cable can be provided in a manner that does not necessarily result in an increase in the overall weight of the tire as would occur by e.g., increasing the diameter of a conventional cable construction.Type: GrantFiled: October 31, 2017Date of Patent: May 23, 2023Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Fanny Layec, Rèmi Pinaut, Marie Chassagne, Laurent Bucher
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Patent number: 11566371Abstract: According to embodiments of the present invention, a stranded conductor is formed in which the occurrence of defects, such as strand unevenness of filaments and outward protrusion of filaments, is inhibited. According to embodiments of the present invention, a stranded conductor (1a) includes soft filaments (2a) stranded together. The soft filaments (2a) include a soft filament made of an aluminum material, disposed along a center (101), and include six soft filaments, twelve soft filaments, and eighteen soft filaments made of an aluminum material, disposed around and concentrically with the center. The filaments are softened filaments that are softened. A lay length (Pa) is from 6.2 times to 15.7 times a conductor diameter of the stranded conductor.Type: GrantFiled: October 4, 2019Date of Patent: January 31, 2023Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.Inventors: Masahiro Yoshimaru, Hideyuki Osuga
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Patent number: 11535982Abstract: A cord (50) comprises: an internal strand (TI) comprising an internal layer (C1), and an external layer (C3); and L>1 external strands (TE) comprising an internal layer (C1?) of Q?=1 internal wire (F1?), an intermediate layer (C2?) of M? intermediate wires (F2?) wound around the internal layer (C1?) with a pitch p2?, and an external layer (C3?) of N? external wires (F3?) wound around the intermediate layer (C2?) with a pitch p3?. The external layer (CE) of the cord is wound around the internal layer (CI) of the cord in a direction of winding of the cord (50). Each external layer (C3, C3?) of each internal and external strand (TI, TE) is wound in the same direction of winding that is the opposite to the direction of winding of the cord (50). The external layer (CE) of the cord (50) is desaturated, and 0.36?(p3??p2?)/p3??0.57.Type: GrantFiled: December 20, 2017Date of Patent: December 27, 2022Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Emmanuel Clement, Marianna Chevalley, Alexandre Gianetti, Stéphane Laurent, Rémi Pinaut
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Patent number: 10724162Abstract: Elongated bodies made from high tenacity polyolefin fibers are provided that are useful as fishing lines, and processes for making the lines. Fibers having tenacities of at least 39 g/denier are braided and fused together to form braided bodies having very small diameters.Type: GrantFiled: November 29, 2017Date of Patent: July 28, 2020Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Thomas Tam, Huy Xuan Nguyen, Lori L. Wagner, Mark Tallent, Christopher B. Miller
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Patent number: 10669126Abstract: A belt for an elevator system includes one or more tension members arranged along a belt width and extending longitudinally along a length of the belt, each tension member including a plurality of fibers extending along the belt length. 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 one or more tension members arranged along a belt width and extending longitudinally along a length of the belt, each tension member including a plurality of fibers extending along the belt length. A jacket material at least partially encapsulates the plurality of tension members.Type: GrantFiled: August 28, 2017Date of Patent: June 2, 2020Assignee: OTIS ELEVATOR COMPANYInventors: Wenping Zhao, Daniel A. Mosher
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Patent number: 10344427Abstract: The present invention provides a production method for a closed-loop cable. The method includes the steps of providing a cable including a core and metal strands helically wound around the core, connecting two ends of the cable in splice areas via splice knots formed by ends of each metal strand, inserting the metal strand ends inside the cable after locally removing the core and subsequently overmolding each splice area using a polymer.Type: GrantFiled: October 8, 2015Date of Patent: July 9, 2019Inventors: Benjamin Coutaz, Marc Courtebras, Pierre-François Baron
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Patent number: 9593446Abstract: With a wire rope comprising at least one plastic core (11) and a number of wire strands (15) twisted around the latter a helical groove (20) is respectively produced by machining around the periphery of the plastic core (11) for each wire strand (15). The cross section of these helical grooves (20) is respectively matched to the outside diameter of the wire strands (15). The plastic core (11) is provided with the helical grooves (20) for receiving the wire strands (15) by this machining directly before the wire strands (15) are wound onto said core. By thus forming the wire rope by means of this machining in order to produce helical grooves of the plastic core, optimal guiding of the wire strands in the twisted state is achieved, and so overall there are improvements to the properties of the wire rope.Type: GrantFiled: June 26, 2014Date of Patent: March 14, 2017Assignee: Fatzer AG DrahtseilfabrikInventor: Christof Nater
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Patent number: 8943789Abstract: The present invention is to provide a hybrid core rope which does not require maintenance or a hybrid core rope capable of reducing a maintenance task. The hybrid core rope includes a resin solid core in which a plurality of spiral grooves is formed in the longitudinal direction on an outer peripheral surface thereof, a plurality of fiber bundles respectively spirally wound around the outer peripheral surface of the resin solid core along the plurality of spiral grooves, the fiber bundles having thickness to fill the spiral grooves, and a plurality of steel strands spirally wound around the outer peripheral surface of the resin solid core around which the fiber bundles are wound. The fiber bundles and the strands are respectively wound so as to have angles which are not parallel to each other.Type: GrantFiled: May 10, 2013Date of Patent: February 3, 2015Assignee: Tokyo Rope Manufacturing Co., Ltd.Inventors: Jun Takeuchi, Kaori Ichikawa
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Publication number: 20150000242Abstract: With a wire rope comprising at least one plastic core (11) and a number of wire strands (15) twisted around the latter a helical groove (20) is respectively produced by machining around the periphery of the plastic core (11) for each wire strand (15). The cross section of these helical grooves (20) is respectively matched to the outside diameter of the wire strands (15). The plastic core (11) is provided with the helical grooves (20) for receiving the wire strands (15) by this machining directly before the wire strands (15) are wound onto said core. By thus forming the wire rope by means of this machining in order to produce helical grooves of the plastic core, optimal guiding of the wire strands in the twisted state is achieved, and so overall there are improvements to the properties of the wire rope.Type: ApplicationFiled: June 26, 2014Publication date: January 1, 2015Inventor: Christof Nater
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Publication number: 20130318937Abstract: The present invention is to provide a hybrid core rope which does not require maintenance or a hybrid core rope capable of reducing a maintenance task. The hybrid core rope includes a resin solid core in which a plurality of spiral grooves is formed in the longitudinal direction on an outer peripheral surface thereof, a plurality of fiber bundles respectively spirally wound around the outer peripheral surface of the resin solid core along the plurality of spiral grooves, the fiber bundles having thickness to fill the spiral grooves, and a plurality of steel strands spirally wound around the outer peripheral surface of the resin solid core around which the fiber bundles are wound. The fiber bundles and the strands are respectively wound so as to have angles which are not parallel to each other.Type: ApplicationFiled: May 10, 2013Publication date: December 5, 2013Applicant: TOKYO ROPE MANUFACTUTING CO., LTD.Inventors: Jun TAKEUCHI, Kaori Ichikawa
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Publication number: 20130319053Abstract: An electrically conductive composite knitting yarn includes a core yarn and a plurality of stainless steel wing yarns that are bonded to the core yarn and extend on a side of the core yarn; each of the wing yarns is bonded to the core yarn by continuously forming twist portions at two loops adjacent to each other from among a plurality of loops formed on the core yarn in a longitudinal length of the core yarn. Alignments of the yarns, forming of yarns in groups, and a method of manufacturing the electrically conductive composite knitting yarn also are disclosed.Type: ApplicationFiled: April 12, 2013Publication date: December 5, 2013Inventors: Kye-Yoon PARK, In-Ho LEE
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Publication number: 20130247534Abstract: A rope having a cut-resistant jacket which includes a core comprised of a plurality of sub-ropes. The sub-ropes may be in a parallel strand configuration. The sub-ropes and the strands thereof may be made of fibers of a synthetic material, such as polyester, nylon, polypropylene, polyethylene, aramids, or acrylics. A cut-resistant jacket surrounds the core and is made from a material that has increased strength and/or abrasion resistance over the material of the core. The cut-resistant jacket may comprise steel wires and may further comprise braided steel wires or rope. The braided steel wires or rope may be covered with a plastic material for increased corrosion resistance. A filter layer may be disposed between the core and the cut-resistant jacket and may be wrapped around an outer surface of the core prior to the cut-resistant jacket being formed.Type: ApplicationFiled: March 26, 2013Publication date: September 26, 2013Applicant: WireCo WorldGroup Inc.Inventors: José António Canedo Duarte da Rocha, João Manuel Morais de Sousa
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Publication number: 20120180926Abstract: A composite hybrid cord comprising a core comprising of a first bundle of synthetic filaments having a filament tenacity of from 10 to 40 grams per decitex and a plurality of cabled strands helically wound around the core, each cabled strand comprising of a plurality of metal strands helically wound around a center second bundle of synthetic filaments that have a filament tenacity of from 10 to 40 grams per decitex. The ratio of the largest cross sectional dimension of the first bundle of synthetic filaments to the largest cross sectional dimension of the second bundle of synthetic filaments is from 1.5:1 to 20:1. The metallic filaments of the cabled strands have an elongation at break that is no more than 24 percent different from the elongation at break of the synthetic filaments of the first and second bundles.Type: ApplicationFiled: July 14, 2011Publication date: July 19, 2012Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Serge Rebouillat, Olivier Rozant, Frederic Fleury
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Publication number: 20110225944Abstract: A steel cord (10) adapted for the reinforcement of rubber products, the steel cord (10) comprises a core (12) and three or more outer strands (14) twisted around the core (12) in a cord twisting direction. The outer strands (14) comprise outer filaments (16) twisted in a strand twisting direction which is the same as the cord twisting direction. The outer strands (14) have a wavy form which makes spaces between the core (12) and the outer strands. The steel cord (10) has improvements on elongation at break and impact resistance capacity.Type: ApplicationFiled: November 23, 2009Publication date: September 22, 2011Inventors: Rik Mullebrouck, Zhichao Cheng
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Publication number: 20100071340Abstract: A combined cable comprising a core cable of high-strength synthetic fibers, which take the form of a twisted bundle of monofilaments or a plurality of twisted bundles of monofilaments, and comprising an outer layer of steel wire strands, is characterized in that the bundle or bundles of monofilaments is or are stretched, with a reduction in diameter, and held in this state by a sheathing, in particular a braided sheathing. The extension under strain of the core cable under load is thereby reduced, so that the load distribution between the cross section of steel and the cross section of synthetic material of the cable improves. In order, in the same sense, conversely to make the strain behavior of the layer of strands approximate that of the core cable, the cable has an intermediate layer of an elastic synthetic material into which the steel wire strands are pressed while spaced apart from one another in such a way that the outer layer extends under load, and contracts radially.Type: ApplicationFiled: May 15, 2008Publication date: March 25, 2010Inventors: Isabel Ridge, O'Hear Nicholas, Otto Grabant, Cornelis Adrianus Das
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Patent number: 7594380Abstract: A hybrid layered cable for use in tire reinforcement includes a non-metallic internal layer and an unsaturated external layer including 3-12 strands. Each strand is at least partly metallic and is helically wound around the internal layer. Each strand includes at least 3 filaments wound helically together. The cable has a relative elongation at break, measured in tension in accordance with the standard ISO 6892 of 1984, which is higher than 7%.Type: GrantFiled: December 27, 2004Date of Patent: September 29, 2009Assignee: Michelin Recherche et Technique S.A.Inventors: Henri Barguet, Le Tu Anh Vo, Thibaud Pottier, Laurence Ducourant
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Patent number: 7337604Abstract: An elongation cord adapted for the reinforcement of elastomer structures has a polymer core and three to nine strands twisted around the core with a cord twisting step in a cord twisting direction. At least one of the strands a first group of filaments and a second group of filaments. The first group of filaments is twisted with a first twisting step in a first twisting direction and the second group of filaments is twisted with a twisting step in a second twisting direction. The first twisting step is different from the second twisting step or the first twisting direction is different from the second twisting direction, or both. The first twisting direction is equal to the cord twisting direction and the first twisting step is equal to the cord twisting step.Type: GrantFiled: June 25, 2004Date of Patent: March 4, 2008Assignee: NV Bekaert SAInventors: Stijn Vanneste, Hans Cauwels
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Patent number: 6779330Abstract: An antimicrobial, cut-resistant composite yarn which has a core member including at least one cut-resistant strand, a cover member including at least one strand wrapped around and enclosing the core member, wherein at least one strand in either the core member or the cover member is treated with and incorporates an antimicrobial compound. The yarn can be used to fabricate cut-resistant garments, such as gloves, worn by meat cutters and others who work with knives, saws and other sharp implements. The antimicrobial effect reduces bacteria, mold and fungi growth on the garments between washings.Type: GrantFiled: October 31, 2000Date of Patent: August 24, 2004Assignee: World Fibers, Inc.Inventors: Dean Riley Andrews, Gregory V. Andrews, John D. Simmons
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Patent number: 6381940Abstract: 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: GrantFiled: April 19, 2000Date of Patent: May 7, 2002Assignee: Supreme Elastic CorporationInventors: Nathaniel H. Kolmes, Della B. Moore, George M. Morman, Jr., Richie D. Phillips, Eric Pritchard
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Patent number: 6363704Abstract: A wire cable for window regulators of automobiles is disclosed. In the wire cable, the core strand has a double-layer twisted strand structure with an F+6+12 element wire structure, and consists of a high-strength synthetic resin filament used as a core element wire (F), six internal element wires primarily twisted around the core element wire to form an internal layer around the core element wire, and twelve external element wires secondarily twisted around the internal layer to form an external layer around the internal layer. Eight external strands, having a single-layer twisted strand structure with a 1+6 element wire structure, are twisted around the core strand to form an 8×7+(F+6+12) element wire structure of the wire cable in cooperation with the core strand. The synthetic resin filament used as the core element wire of the core strand has a diameter slightly larger than that of the internal and external element wires of the core strand.Type: GrantFiled: May 22, 2001Date of Patent: April 2, 2002Inventor: Young-Jo Kim
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Patent number: 6363703Abstract: 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: GrantFiled: June 1, 2000Date of Patent: April 2, 2002Assignee: Supreme Elastic CorporationInventor: Nathaniel H. Kolmes
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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: 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: 5806295Abstract: A cut-resistant flexible yarn suitable for knitting, method of forming the cut-resistant yarn, and protective apparel incorporating the cut-resistant yarn are provided. The yarn includes a plurality of core units. Each of the core units includes a core yarn, and a flexible metallic filament wrapped around the core yarn. The plurality of core units are positioned adjacent to each other to form a bundle. At least one cover strand is wrapped around and encases the bundled core units to form a cover.Type: GrantFiled: May 23, 1997Date of Patent: September 15, 1998Inventors: Steven D. Robins, Robert H. Fleming, Jr.
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Patent number: 5797254Abstract: An extruded polymeric rod is elongated in the solid state by being drawn through a forming device to produce a solid polymeric core having an orientated structure which comprises elongated crystals orientated in the axial direction of the core. The core may also comprise crystals orientated in respective radial directions. The single rod may be replaced by a bundle of rods.Type: GrantFiled: April 22, 1996Date of Patent: August 25, 1998Assignee: Bridon plcInventor: John Mawson Walton
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Patent number: 5669214Abstract: To reduce elongation of a stranded wire rope or cable (1), particularly when running over sheaves, or pulleys, and decrease vibration as well as operating noise while increasing operating speed, insert elements (4) are placed between adjacent rope elements (2). The insert elements, in cross-section, have an intermediate portion part (7) with oppositely positioned concave recesses (9), a head portion (6) which can be widened to the circumferential diameter of the rope or cable (1) and a widened base portion (8). The base portions (8) are not interconnected. The insert ribbons or tapes are preferably formed along their length with slits (11) extending from the head portion (6) to about the middle of the ribbon or tape to allow for bending of the rope, and the inserts about circular pulleys.Type: GrantFiled: October 2, 1995Date of Patent: September 23, 1997Assignee: Fatzer AGInventor: Georg A. Kopanakis
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Patent number: 5651245Abstract: The cable includes a substantially metallic central core (3) and outer strands (2) formed from at least one layer of metal wires (21), particularly steel wires, which are stranded over a core element (22) made from synthetic material, preferably a thermoplastic material, this being with a pitch similar to that of the strands (5,6) with which the core (3) is formed, it being possible for the latter to be entirely metallic or hybrid. These cables are intended particularly for use as a lifting cable, particularly elevator cables, or other multicable installations with transmission by means of adherence.Type: GrantFiled: December 22, 1995Date of Patent: July 29, 1997Assignee: Trefileurope FranceInventor: Jean-Pierre Damien
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Patent number: 5335488Abstract: A cable is provided for attacking rotating wing aircraft by breaking and/or fouling rotor blades and/or blade pitch adjusting mechanisms. The cable comprises a stretchable core and shallow helix angle outer strands. A high hysteresis rubber or rubber-like material occupies the spaces between the strands and the core. The high hysteresis material prevents the cable from bouncing off the rotor blades when coming into contact therewith.Type: GrantFiled: October 8, 1992Date of Patent: August 9, 1994Inventor: Richard F. Honigsbaum
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Patent number: 5269128Abstract: A core for wire rope has a fluted member (1) of polymeric or elastomeric material with symmetrically spaced helical grooves (2) each having the shape of an elliptical arc in cross-section in a plane normal to the core axis. The core may contain a reinforcing member, conductors, or optical fibers.Type: GrantFiled: June 24, 1992Date of Patent: December 14, 1993Assignee: Bridon PLCInventors: John M. Walton, Michael T. Burtoft
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Patent number: 5147721Abstract: A glass matrix/ceramic fiber reinforcement composite is prepared from a yarn formed by spinning glass fiber and ceramic fibers lengths together, to form a bicomponent yarn. The yarn is weavable and spinnable, and accordingly may be prepared in fabric forms, or in windings, of predetermined shape. The precursor is melted by heating to the temperature of the melting point of glass, which fused the glass into a continuous matrix, surrounding the ceramic reinforcement.Type: GrantFiled: July 7, 1989Date of Patent: September 15, 1992Assignee: Hexcel CorporationInventors: Kenneth S. Baron, Milton F. Custer, Andreas G. Hegedus
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Patent number: 5048280Abstract: A high-elongation composite cord used for reinforcing a rubber composite such as a wheel tire and a conveyor belt. It is made by twisting a plurality of strands each made by twisting a plurality of brass-plated steel filaments and monofilaments of organic fiber. Before twisting the cord, monofilaments of organic fiber are put in the gaps formed between the adjacent strands so as to prevent fluidized rubber from penetrating into a center core formed in the cord after the cord has been covered with rubber. The monofilaments should have a diameter small enough not to protrude from a circle circumscribing the cord and large enough to close the gaps between the adjacent strands.Type: GrantFiled: December 26, 1989Date of Patent: September 17, 1991Assignee: Sumimoto Electric Industries, Ltd.Inventors: Kenichi Okamoto, Hidekazu Nakata
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Patent number: 4887422Abstract: This invention provides a composite wire rope comprising a plurality of outer strands laid helically about a helically stranded core. The core is comprised of high strength synthetics, such as polyamide or polyolefin materials to form a unitized lay central member. The method for forming the rope comprises the steps of twisting high strength synthetic monofilament yarns into core elements to provide a high degree of stability and overall tensile strength. Each such element is helically laid in a single operation to form the finished core. Lubricant may be applied and subsequently a protective jacket of steel, natural or synthetic material may be provided to encapsulate the core and lubricant. The rope structure is completed by helically laying a plurality of outer strands about the core.Type: GrantFiled: September 6, 1988Date of Patent: December 19, 1989Assignee: AMSTED Industries IncorporatedInventors: David A. Klees, Robert B. Hoganson, Harry L. Data
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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: 4501115Abstract: A wire rope for use in a traction type elevator system is coated with a soft-solid agent or a greasy agent having a drip temperature higher than 55.degree. C. and exhibiting physical properties such that it is evaporated in an amount less than 1 weight percent at 105.degree. C. for an interval of eight hours and elevates the coefficient of friction or traction between the wire rope and the drive sheave when coated on the wire rope.Type: GrantFiled: April 6, 1983Date of Patent: February 26, 1985Assignees: Mitsubishi Denki Kabushiki Kaisha, Tokyo Rope Mfg., Co., Ltd., Hakko Kouyu Co., Ltd.Inventors: Katsuhiko Suzuki, Seihachi Naganuma
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Patent number: 4376458Abstract: The properties of a composite bead ring for tires are improved by interposing an annular trifurcated element tangentially of the three unitary bead ring components.Type: GrantFiled: November 6, 1981Date of Patent: March 15, 1983Assignee: Compagnie Generale des Etablissments MichelinInventor: Daniel Lejeune
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Patent number: 4315099Abstract: Flexible transmission line, wherein it comprises a fluid circulation duct and reinforcements inside and outside the said duct against compressive forces inside and outside the duct, the internal reinforcement comprising at least one cable within said duct, whereby within said duct over the entire length of the line the cable leaves fluid circulation spaces, while the external reinforcements are coaxial to the duct.Type: GrantFiled: January 2, 1980Date of Patent: February 9, 1982Assignee: Commissariat a l'Energie AtomiqueInventors: Claude Gerardot, Georges Romero
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Patent number: 4219995Abstract: A wire rope is formed by twisting two different metal wires which vary from each other by at least 50% in their loss factors. The two different metal wires are combined in two embodiments: first, wires of steel material and wires of titanium containing material, or secondly, wires of a steel material and wires of chromium stainless steel material. In a preferred embodiment, a wire rope is formed by twisting a plurality of strands around a center core and two different metal wires as described above are employed to form the strands.Type: GrantFiled: September 7, 1978Date of Patent: September 2, 1980Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Shinobu Tajima, Kazutoshi Ohta
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Patent number: 4176705Abstract: A composite cord used in the reinforcement of pneumatic tires is composed of a plurality of twisted steel strands cabled around a multifilament core.Type: GrantFiled: September 15, 1977Date of Patent: December 4, 1979Assignee: The Goodyear Tire & Rubber CompanyInventors: C. Paul Russell, Joseph M. Gingo, Oswald A. Drica-Minieris
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Patent number: 4123894Abstract: A corrosion resistant rope in which the individual strands are sealed with a plastic foam impregnant and which exhibits excellent retention of lubrication is made by preimpregnating the outer strands of the rope with plastic foam material prior to closing the strands into a wire rope. The final rope may then be surface lubricated to provide temporary and long term corrosion resistance and lubrication to exposed surface wires.Type: GrantFiled: August 5, 1977Date of Patent: November 7, 1978Assignee: Bethlehem Steel CorporationInventors: Charles R. Hughes, Darral V. Humphries