Plural Strand Patents (Class 174/128.1)
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Patent number: 7420124Abstract: A wire for use in medical applications. The wire is formed by forming a bundle from a plurality of drawn filled tubing strands and positioning the bundle within an outer tubing. The tubing and strands are then drawn down to a predetermined diameter to form a wire for use in the medical devices. The wire may be covered with an insulating material.Type: GrantFiled: September 13, 2004Date of Patent: September 2, 2008Assignees: Fort Wayne Metals Research Products Corp., W.C. Heraeus GmbH & Co. KGInventors: Mark S. Michael, Hans-Jüergen Wachter, Robert J. Myers
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Patent number: 7417191Abstract: Methods and apparatuses for electrically connecting a medical glucose monitor to a glucose sensor set, as well as for testing the operation of the glucose monitor, monitor cable and glucose sensor set are provided. In one embodiment, an electric cable comprises a cable member, a first connector and a second connector. The cable member in turn comprises at least one insulated conductor, a conductive shielding layer disposed around the at least one insulated conductor; and an insulating layer disposed around the conductive shielding layer. A glucose monitoring system test plug provides for a releasable electrical connection with the electric cable. In one embodiment, the test plug comprises a housing and a fitting affixed thereto which is adapted to electrically couple the test plug with the electric cable.Type: GrantFiled: December 12, 2006Date of Patent: August 26, 2008Assignee: Medtronic MiniMed, Inc.Inventors: John J. Mastrototaro, Richard E. Purvis, Edgardo C. Halili, Eric Johnson
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Publication number: 20080136551Abstract: An upper frequency-range circuit (160) includes a load element (168) exhibiting a capacitive load impedance. A first matching network (166) includes at least one nano-scale Litz wire (100) inductor. The first matching network (166) exhibits an inductive reactance that nominally matches the capacitive load reactance. An electrical conductor for providing connections for radio-frequency signals includes a plurality of nano-scale conductors (120) that are arranged in the form of a Litz wire (100). In one method of making a Litz wire (142), a plurality of carbon nanotubes (144) is placed on a substrate (146). The carbon nanotubes (144) are woven according to a predefined scheme so as to form a Litz wire (142). An inductor may be formed by manipulating the Litz wire (100) to form a coil (150).Type: ApplicationFiled: December 12, 2006Publication date: June 12, 2008Inventor: James P. Phillips
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Publication number: 20080128151Abstract: The present invention concerns an electrical control cable (1?) with a section diameter at most equal to 2 mm, of the type including a plurality of strands extending in the longitudinal direction of the cable, said strands being twisted to form a stranded conductor. According to the invention, only certain strands (20) of the stranded conductor are of electrically conductive material, for example copper, the remaining strands (40) being of non-conductive material, such as a polyamide, high-strength polyester or a polyetherimide.Type: ApplicationFiled: November 20, 2007Publication date: June 5, 2008Inventors: Francis Debladis, Jerome Fournier, Olivier Schuepbach, Michel Saurel
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Patent number: 7317369Abstract: A superconducting magnet coil configuration comprising at least one section of a superconducting strip conductor, which is continuously wound in a cylindrical winding chamber (1) between two end flanges (2, 3) in several solenoid-like layers is characterized in that the section comprises an axial region of reduced current density (=notch region (10)), and the winding layers (6, 9) have hollow cylindrical blind regions (4a, 4b, 4c) which are filled with filler and which have different axial lengths, and radially sequential blind regions (4a, 4b, 4c) each alternately abut one of the two end flanges (2, 3) and are each radially separated from each other by at least one continuous winding layer (7), wherein the axial overlapping region of the blind regions (4a, 4b, 4c) forms the notch region (10). The inventive device thereby realizes a magnet coil configuration comprising a strip conductor which has a notch region for correcting inhomogeneities, wherein the mechanical load on the strip conductor is minimized.Type: GrantFiled: August 31, 2005Date of Patent: January 8, 2008Assignee: Bruker Biospin GmbHInventors: Gerhard Roth, Volker Niemann, Klaus Schlenga
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Patent number: 7228627Abstract: A manufacturing method is provided to form an overhead transmission cable having an elongated stranded steel core, and at least one layer of conductor wires generally encircling the stranded steel core. Each conductor wire includes a circumferentially extending, metallurgically bonded aluminum outer layer of at least 99.5 percent pure aluminum and having an IACS conductivity of at least 20.3 percent. In one embodiment, the steel conductors include a generally circular cross-section and an aluminum outer layer metallurgically bonded thereto, with the thickness of the aluminum outer layer being at least 10 percent of the overall radial dimension of the conductor.Type: GrantFiled: December 16, 2005Date of Patent: June 12, 2007Assignee: United States Alumoweld Co., Inc.Inventors: Hironori Yoshimura, Thomas J. Higham, Henry T. Jarboe, Jr.
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Patent number: 7180002Abstract: The invention describes a flexible multicore electrical cable with a central supporting member (3), several cores (1) that includes insulated fine-strand conductors and surround the supporting member (3), and a plastic sheath (5), wherein the central supporting member (3) includes a torsionally rigid steel cable (3a), which is provided with an outer layer of insulation (3b). The steel cable (3a) includes a core strand (6), a first course of several strands (7) stranded on the core strand (6), and a second course of several strands (10) stranded on the first course, wherein the direction of lay and/or the length of lay of the strands (10) of the second course is different from the direction of lay and/or the length of lay of the strands (7) of the first course.Type: GrantFiled: October 26, 2005Date of Patent: February 20, 2007Inventors: Harald Bertges, Heinz-Willi Hamacher, Walter Winkelbauer
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Patent number: 7145082Abstract: A flexible electric line with at least one electrical conductor is provided having a high tensile, nonmetallic element and a plurality of highly conductive metal wires arranged around it. The flexible electric line has a high tensile element that is a loose composite of a large number of aramid fibers, the cross section of this element being the same as that of one of the individual metallic wires and where the conductor is surrounded by a layer of insulation.Type: GrantFiled: November 15, 2002Date of Patent: December 5, 2006Assignee: NexonsInventors: Thomas Hochleithner, Thomas Noetzel
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Patent number: 7141740Abstract: A sound signal wire that has higher rigidity to prevent roping effect from reducing sound quality during vibration within a speaker frame, and/or also has a higher flexibility and tensile strength to make the vibrated sound signal wire more durable for use with a speaker for transmitting sound signals is disclosed. The sound signal wire is constructed from sets of weaving wire units which weave onto other sets of support wire units along specific paths, with acetal resin or polyurethane coating the surface of the wire. Each wire unit is comprised of an inner fiber and a conductive metal sheet encompassing the inner fiber, in which the inner fiber is a heat-resistant fiber that is made by a poly meta-aramid fiber mixed-woven with a poly para-aramid fiber.Type: GrantFiled: June 27, 2005Date of Patent: November 28, 2006Assignee: Taiwan Maeden Co., Ltd.Inventor: Joseph Ko
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Patent number: 7132603Abstract: The present invention provides an electrical connection device. The device comprises a pin, socket or lug and a means for electrically connecting the pin, socket or lug to groups of strands of an individual multi-bunch core of a machine, reeling or trailing cable. The means is divided into a plurality of portions and each portion is arranged to receive at least one group of strands wherein, in use, the portions are individually connected to the or each respective group of strands whereby the strength of the connection is improved.Type: GrantFiled: August 8, 2002Date of Patent: November 7, 2006Assignee: Head Electrical International PtyInventor: Mark Wells
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Patent number: 7060907Abstract: An electric wire for automobile including a compressed conductor which is obtained by arranging, around a single central element wire of stainless steel, a plurality of peripheral element wires of copper or copper alloy in a single circle in tight adherence with each other, wherein the cross sectional area of the conductor is 0.10 through 0.30 mm2, and a ratio C of the cross sectional area of the central element wire to the cross sectional area of the conductor expressed by the formula below is 19.6 through 33.Type: GrantFiled: October 7, 2004Date of Patent: June 13, 2006Assignee: Sumitomo Wiring Systems, Ltd.Inventor: Koutarou Maeda
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Patent number: 6982385Abstract: A wire cable of electrical conductor forming of multiple metals or alloys includes single (bundle) wire cable or double (bundle) wire cables, in which at least in one bundle of electrical conductor, each bundle of electrical conductor is composed of slim electric wire made by two or more than two metals or alloys, which is covered by insulator to form a wire cable of electrical conductor.Type: GrantFiled: December 4, 2003Date of Patent: January 3, 2006Inventor: Jeng-Shyong Wu
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Patent number: 6933446Abstract: An anti-roosting device is disclosed. The device includes a track, an electrical conductor, and an electrical source. The conductor is embedded within the track, with a portion of the conductor left exposed. The electrical source provides low amperage at high voltage to the electrical conductor such that the device is harmless to both birds and humans, but will deliver a shock that is effective in keeping birds from roosting thereon.Type: GrantFiled: February 19, 2004Date of Patent: August 23, 2005Assignee: Bell Environmental ServicesInventors: Philip M. Waldorf, Sean Smith
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Patent number: 6927342Abstract: Electrical conductors, such as bare or round wires, are insulated by taping with a micaceous insulating tape, having a film support of a polymer which can be heat-shrunk above 150° C. and a layer of mica fastened to the film support by means of a binder, and subsequent heat shrinkage of the polymer. The micaceous tape can also have a second film support of a polymer which can be heat shrunk above 150° C.; this second film support is then fastened to the mica layer on the side opposing the first film support.Type: GrantFiled: June 23, 2000Date of Patent: August 9, 2005Assignee: Von Roll Isola Winding Systems GmbHInventors: Heinz Brandes, Thomas Hillmer, Jean-Luc Rediger, François Jund, Franz Hänggi, José Fernandez
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Patent number: 6900391Abstract: An electric wire for automobile including a compressed conductor which is obtained by arranging around a single central element wire of stainless steel, seven or more peripheral element wires of copper or copper alloy in a single circle in tight adherence with each other, and an insulation coating layer which covers the outer circumference of the conductor, wherein the diameter of the central element wire is larger than the diameters of the peripheral element wires, the cross sectional area of the conductor is 0.13 through 0.16 mm2, and the insulation coating layer contains a fire retardant in the amount of 160 weight parts or more relative to 100 weights parts of insulation polymer.Type: GrantFiled: October 7, 2004Date of Patent: May 31, 2005Assignee: Sumitomo Wiring Systems, Ltd.Inventor: Koutarou Maeda
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Publication number: 20040231883Abstract: An electric wire for automobile has a compressed conductor which is configured by compressing a conductor including a plurality of surrounding wires to surround the central wire. The wires are configured by combination of both wire made of stainless steel and wire made of copper or copper alloy.Type: ApplicationFiled: March 5, 2004Publication date: November 25, 2004Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMIMOTO WIRING SYSTEMS, LTD., SUMIMOTO ELECTRIC INDUSTRIES, LTD.Inventors: Mamoru Kondo, Masanobu Yoshimura
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Publication number: 20040222012Abstract: A small-gauge signal cable has a fiber core of a strong fiber such as aramid, a plurality of conductor wires stranded around the fiber core, a coating of conductive polymer over the stranded conductor wires, and an outer jacket. The fiber core gives the cable greater flexibility and break strength. The conductive coating serves as a protective layer to allow the outer jacket to be stripped easily without damaging the conductor wires. A connector is installed on the cable by crimping the connector directly onto the conductive polymer coating. The conductive polymer coating provides retention of the conductor wires in the proper concentric fabricated orientation for reduced wire fatigue at the point adjacent the connector.Type: ApplicationFiled: May 6, 2003Publication date: November 11, 2004Applicant: Electron Beam Technologies, Inc.Inventor: Paul M. Wlos
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Patent number: 6816052Abstract: Improved Litz track rungs for urban Maglev Inductrack use are provided using an anneal, stainless steel square tube cut to length.Type: GrantFiled: November 10, 2003Date of Patent: November 9, 2004Inventor: Edward Ziegler
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Publication number: 20040124001Abstract: An electrical cable having a holding member arranged within the cable for an optic fiber, which can be used for temperature sensing and/or communications. The holding member can replace one or more strands of the cable, be placed inside an interstice of the cable, be placed in between various layers of the cable, or placed in the jacket of the cable. If desired a strength member may be adjacent to and/or attached to the holding member to provide additional protection for the optic fiber. The cable can be produced through the addition of a planetary strander device to a wire assembly apparatus.Type: ApplicationFiled: September 8, 2003Publication date: July 1, 2004Inventor: Eugene T. Sanders
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Publication number: 20040112630Abstract: A sound signal wire is provided, which is composed of two sets of weaving wires, wherein the first set of weaving wires are positioned at a central portion of the sound signal wire to serve as a main support for the sound signal wire, and the second set of weaving wires are positioned at a peripheral portion of the sound signal wire and rotationally woven to encompass the first set of weaving wires. This sound signal wire has better flexibility and greater tensile strength, and thereby is not easily subject to roping effect during vibration, making the sound signal wire particularly suitable for transmitting sound signals in a speaker.Type: ApplicationFiled: December 13, 2002Publication date: June 17, 2004Applicant: Taiwan Maeden Co., Ltd.Inventor: Joseph Ko
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Publication number: 20040099436Abstract: A wire is obtained by winding a conductor on a center core obtained by twisting a plurality of core threads, and the surface of the conductor is covered with an insulator. As the conductor, a rectangular wire having a rectangular section is preferably used rather than a round wire with respect to volume occupation. The plurality of wires, e.g., three wires, constitute a wire rod. These three wires are twisted, woven, or bundled to form a wire rod. Three wire rods are twisted, woven, or bundled to form an electric cord. A loudspeaker uses the electric cord, and the electric cord is used as a signal input line for a voice coil.Type: ApplicationFiled: November 18, 2003Publication date: May 27, 2004Applicant: PIONEER CORPORATIONInventors: Koji Maekawa, Hiroyuki Kobayashi
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Publication number: 20040089468Abstract: An induction winding (20) consisting of at least one turn, containing current-carrying means (10) comprising stranded conductors (11) arranged in at least one layer (12, 13, 14) where the said at least one layer is electrically insulated from adjacent layers (16, 17, 18) and at least two adjacent strands constituting the said at least one layer are uninsulated.Type: ApplicationFiled: December 31, 2003Publication date: May 13, 2004Inventors: Peter Carstensen, Torbjorn Wass, Bo Hernnas
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Patent number: 6734366Abstract: An overhead cable is provided that comprises a tension-bearing core of twisted steel strands, a conductive layer of aluminum strands arranged at the outer circumference of the twisted steel strands, and an outermost layer arranged at the outer circumference of the aluminum strands. The outermost layer is formed by twisting together a plurality of adjoining segment strands. A spiral groove is provided in the longitudinal direction along the boundary portion of the outer circumferential surface of each adjoining segment strand. Along the contour of a cross-section of this outermost layer, each groove comprises an arc-shaped curve having a radius R centered around a vertex of a regular polygon. Each part between adjoining grooves comprises an arc-shaped curve which is concave with respect to a straight line connecting adjoining of a regular polygon, intersecting the arc-shaped curve with radius R.Type: GrantFiled: November 29, 2000Date of Patent: May 11, 2004Assignee: The Furukawa Electric Co., Ltd.Inventors: Naoshi Kikuchi, Tamezo Suzuki
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Patent number: 6674011Abstract: A layered stranded conductor has an inner layer section and an outer layer section. The inner layer section has one or more inner section element wires, including a first element wire having an outer diameter of 0.08 mm or less. The outer layer section has one or more outer section element wires, including a second element wire stranded with the first element wire and an outer diameter of 0.08 mm or less. The first element wire has 1.5 times or higher tensile strength than that of a second element wire. Additionally, the one or more inner and the one or more outer section element wires are stranded with each other such that a ratio of a strength of the one or more inner section wires to a strength of the one or more outer section wires is 0.5 to 5.Type: GrantFiled: July 25, 2001Date of Patent: January 6, 2004Assignee: Hitachi Cable Ltd.Inventors: Satoshi Ueno, Hiroo Tanaka, Hakaru Matsui
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Patent number: 6649844Abstract: A coil conductor for a dynamoelectric machine which is a coil conductor to be inserted into slots of an iron core of a dynamoelectric machine, the coil conductor being made of a plurality of wire elements compression-bonded to each other by press-forming so as to have a substantially rectangular cross-section. The wire elements may be twisted by at least 360 degrees and the twisted wire elements may be further twisted. The coil conductor includes straight sections and crossover sections, providing an overall shape of a crank wound in a serpentine manner and the straight sections have different intervals that are different in accordance with the different periodical numbers n th and (n+1) th. The coil conductor for a dynamoelectric machine may further include an electrical insulating material disposed around the conductor of a square cross-sectional shape that is formed by simultaneously pressing the conductor bundle with an electrical insulating material placed therearound before press-forming.Type: GrantFiled: February 16, 2001Date of Patent: November 18, 2003Assignee: Mitsunishi Denki Kabushiki KaishaInventors: Katsuhiko Kusumoto, Shinji Nishimura, Keiichi Komurasaki, Akiyoshi Kariyama, Akihiro Yamamura, Yuji Nakahara, Hidekazu Satake, Yoshikazu Ugai
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Patent number: 6642456Abstract: The invention relates to the manufacturing of a seven wire symmetrical hybrid conductor containing a hard copper alloy wire of copper clad steel in the center and six hard ETP copper peripheral wires in 24 and 26 AWG in sizes that fulfills the SAB J 1678 Ford specificiation with regard to electrical resistance and breaking load, having an outside diameter forming a tubular wall with very light undulations.Type: GrantFiled: December 19, 2000Date of Patent: November 4, 2003Assignee: Servicios CondumexInventors: Armando Rodriguez Valadez, Belisario Sanchez Vazquez
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Patent number: 6617516Abstract: A lead wire for use with an oxygen sensor is disclosed. The wire is formed of a center strand having high tensile strength surrounded by a plurality of first strands having high electrical conductance and a plurality of second strands having high tensile strength. The first and second strands are surrounded by a plurality of third strands having high electrical conductance and arranged in groups, and a plurality of fourth strands having high tensile strength, each fourth strand being positioned between two groups of third strands. The second and fourth strands are spaced at equal separation angles around the center strand.Type: GrantFiled: August 12, 2002Date of Patent: September 9, 2003Assignee: Markel CorporationInventors: Kim A. Reynolds, David J. Panish
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Publication number: 20030141101Abstract: The present invention provides a solid electric wire having a small resistance value and a low resistance increase rate at high frequency. A solid electric wire T has a structure in which a plurality of unit wires S are regularly confounded. Each of the unit wires S repeatedly extends inside and outside the electric wire, with a twist direction changed on the basis of a predetermined period. Accordingly, all or most of the unit wires cross each other, and a very large number of cross points are thus created. This reduces the effects of magnetic lines of force on the interaction between the unit wires. This in turn reduces a value for resistance to a high frequency current and the rate of increase in resistance associated with an increase in frequency. Moreover, the regular confounding structure of the unit wires advantageously leads to stable quality.Type: ApplicationFiled: January 29, 2003Publication date: July 31, 2003Applicant: Murata Kikai Kabushiki KaishaInventors: Hiroshi Mima, Yasuo Okuyama, Yasunori Hatakeyama, Tadashi Uozumi
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Publication number: 20030111257Abstract: A wire member adapted to be used in a detection coil of an NMR spectrometer's probe. The wire member comprises a sleeve made of a copper tube having a high electrical conductivity, strands made of platinum, and a thin film of gold or rhodium formed on the surface of the sleeve by plating. The strands are mounted inside the sleeve and have a cross section to cancel the magnetic susceptibility due to the sleeve. The thin film cancels the total magnetic susceptibility of the sleeve and strands.Type: ApplicationFiled: November 1, 2002Publication date: June 19, 2003Applicant: JEOL Ltd.Inventors: Jun Kida, Ryoji Tanaka
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Publication number: 20030111256Abstract: Provided is an automobile power cable in which a stranded wire formed of a plurality of high conductive Al alloy strands each essentially consisted of 0.05 to 0.4 wt. % of Zr, 0.05 to 0.2 wt % of Fe, 0.05 to 0.2 wt. % of Si; and 0.003 to 0.05 wt. % in total of more than one or two kinds selected from a group consisting of Be, Sr, Mg, Ti and V; and the remainder of Al and unavoidable impurities, is coated thereover with an insulation layer made of flame-resistant polyolefin resin and a shield layer formed of a braid containing more than 99 wt. % of Al.Type: ApplicationFiled: December 12, 2001Publication date: June 19, 2003Inventor: Hidemichi Fujiwara
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Patent number: 6576844Abstract: A twisted and compressed conductor including a central wire and a plurality of conductor wires concentrically twisted around the central wire, wherein the central wire is at least one high-strength wire made of a fiber-reinforced metal matrix composite.Type: GrantFiled: October 2, 2000Date of Patent: June 10, 2003Assignee: Yazaki CorporationInventor: Takeshi Kamata
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Patent number: 6559385Abstract: A stranded cable that includes a plurality of brittle load bearing wires and a means for maintaining the stranded arrangement of the brittle wires. Because the load bearing wires are brittle, they cannot be sufficiently deformed during conventional cable stranding processes in such a way as to maintain their helical arrangement. Therefore, the means for maintaining the helical arrangement of the stranded wires allows the stranded cable to be conveniently provided as an intermediate article or as a final article. When used as an intermediate article, it may be later incorporated into a final article such as overhead power transmission cables. The maintaining means may be a tape, an adhesive tape, or a binder applied to the stranded wires.Type: GrantFiled: July 14, 2000Date of Patent: May 6, 2003Assignee: 3M Innovative Properties CompanyInventors: Douglas E. Johnson, Tracy L. Anderson
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Patent number: 6555753Abstract: A method of forming flexible communications wire for use in Local Area Networks is disclosed. A plurality of individual metal strands are formed into a central conductor. The central conductor is then compressed and/or heated to bond adjacent strands together and to reduce the diameter of the wire.Type: GrantFiled: January 23, 2002Date of Patent: April 29, 2003Assignee: Krone, Inc.Inventors: Spring Rutledge, Jim L. Dickman, II, Mark W. White, Robert Kenny
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Publication number: 20030056977Abstract: A multi-spiral element includes a group of spiral conductive lines arranged so as not to cross each other so that the spiral conductive lines are substantially rotationally symmetric with respect to a predetermined point on a dielectric substrate. A plurality of conductive lines in the group of spiral conductive lines have external peripheral ends aligned at a substantially straight line substantially orthogonal to the group of spiral conductive lines. The external peripheral ends of each of the plurality of conductive lines in the multi-spiral element are connected to respective ends of a straight-line-group element having a group of parallel straight conductive lines. A resonator includes the multi-spiral elements functioning as capacitors for accumulating a charge, and the straight-line-group element functioning as an inductor.Type: ApplicationFiled: September 16, 2002Publication date: March 27, 2003Inventors: Seiji Hidaka, Yasuo Fujii, Shin Abe
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Publication number: 20030037957Abstract: A stranded conductor 10 to be used for movable member having a two-layered structure of an inner layer section and an outer layer section, which is prepared by stranding two or more types of element wires with each other, each type having different mechanical properties from one another wherein a first element wire 11 constituting at least the inner layer section 13 has 1.5 times or higher tensile strength than that of a second element wire 12 constituting at least a part of the outer layer section 15, and the respective element wires 11 and 12 are stranded with each other in such that a ratio of a strength in a group of inner layer element wires forming the inner layer section 13 to a strength in a group of outer layer element wires forming the outer layer section 15 (a tensile strength in the group of inner layer element wires/a tensile strength in the group of outer layer element wires) comes to be 0.5 to 5.Type: ApplicationFiled: July 25, 2001Publication date: February 27, 2003Inventors: Satoshi Ueno, Hiroo Tanaka, Hakaru Matsui
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Patent number: 6476324Abstract: In a joining method of first and second conductive members together, at least one of the first and second members is a covered wire having an outer periphery of a conductor wire portion covered by a resin-made covering portion, first, connection portion of the first and second members are pinched between resinous chips. At least a part of the conductor wire portion of the covered wire is covered beforehand by a low-melting-point metal layer having a significant value of thickness. Next, the covering portions corresponding to the connection portions are eliminated by heating and pressurization. And both of the resinous chips are then welded to each other, whereby the connection portions are hermetically sealed. The first and second members are electrically conductively connected together by the welding of the low-melting-point metal layer.Type: GrantFiled: May 31, 2000Date of Patent: November 5, 2002Assignee: Yazaki CorporationInventors: Tetsuro Ide, Takashi Ishii
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Publication number: 20020139564Abstract: An emission control device and method are provided for treating exhaust to reduce pollutants contained therein. The device includes a first chamber through which the exhaust passes. First and second metal grids are disposed within the first chamber at a predetermined distance from each other. Voltage is supplied to the insulated first grid by an electrical induction coil at a predetermined frequency depending upon the application. Electrical charges are generated between the first and second grids which electrically ionizes the exhaust stream. The induction coil includes an insulated center wire, a plurality of bare wires juxtaposed in a curvilinear row and coiled about the center wire, and a plurality of insulated wires juxtaposed in a second row and coiled around the bare wires to provide a highly efficient conductor which also dampens any magnetic field created by the conductor and, thereby, abates creation of random cycling frequencies in adjacent wiring.Type: ApplicationFiled: July 17, 2001Publication date: October 3, 2002Inventor: Paul D. Keppel
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Publication number: 20020129969Abstract: In an electrical cable, particularly a sensor cable, with an electrical conductor (1a, 2a) and an insulating layer (1b, 2b) surrounding the conductor, the conductor (1a, 2a) is made of a plurality of stranded or bunched wire bundles (4). Each wire bundle (4) has a central core wire (5) that is made of a metal with high tensile strength and alternating bending strength and a plurality of copper wires (6) that are stranded around the core wire (5).Type: ApplicationFiled: January 16, 2002Publication date: September 19, 2002Applicant: NEXANSInventors: Ferdinand Groegl, Reingold Goeblmaier, Thomas Mann
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Patent number: 6452101Abstract: An object of the invention is to provide a multi-core conductive wire having the small number of manufacturing processes and a terminal with high strength, and a method of manufacturing the multi-core conductive wire. The multi-core conductive wire is provided with a terminal, at the end portion thereof, where individual strands of the multi-core conductive wire are entangled with each other and the terminal is molded by subjecting to pressure-molding. A method of manufacturing a multi-core conductive wire comprises a step of processing the multi-core conductive wire into a state where individual strands of the multi-core conductive wire are partially entangled with each other; a step of temporarily molding the processed portion; and a step of further applying pressure to the temporarily molded portion for pressure-molding or plastic working.Type: GrantFiled: February 4, 2000Date of Patent: September 17, 2002Assignee: Hitachi, Ltd.Inventors: Takashi Haramaki, Izumi Sakurai, Yoshitaka Kojima
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Patent number: 6448502Abstract: A lead wire for use with an oxygen sensor is disclosed. The wire is formed of a center strand having high tensile strength surrounded by a first plurality of strands having high electrical conductance. Further pluralities of strands having high tensile strength or high electrical conductance surround the center strand and the first plurality of strands.Type: GrantFiled: February 28, 2001Date of Patent: September 10, 2002Inventors: Kim A. Reynolds, John K. Pratt
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Patent number: 6416876Abstract: Copper matrix composites reinforced with continuous SiC and/or boron fibers.Type: GrantFiled: September 15, 2000Date of Patent: July 9, 2002Assignee: 3M Innovative Properties CompanyInventors: Herve E. Deve, John D. Skildum
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Patent number: 6411760Abstract: A coaxial cable includes an inner conductor, a multifilament twisted and drawn or swaged tubular cable outer conductor, and a dielectric (insulative) material therebetween. According to one embodiment, the filaments of the multifilament twisted and drawn or swaged outer conductor are twisted about a central inner conductor provided with an insulative sheath. The outer conductor filaments are arranged such that when they are drawn or swaged, the compressive forces are directed on neighboring filaments and not directed radially inward toward the inner conductor, thereby preventing deformation of the inner conductor. According to another embodiment, each of the filaments is provided with an insulative sheath. According to other embodiments, a cable is formed with a central filament harder than the surrounding filaments. The central filament is withdrawn leaving behind a twisted and drawn or swaged tube with a hollow.Type: GrantFiled: March 10, 2000Date of Patent: June 25, 2002Assignee: General Science & Technology CorpInventor: Francisco J. Avellanet
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Patent number: 6399886Abstract: A highly flexible radiopaque cable includes two, and preferably three or more strands of nickel-titanium (NiTi) alloy wire which are twined about a higher density core wire preferably made of at least one of silver, gold, tungsten, or platinum-iridium to form a wire rope. Other high density core wires may be used. The wire rope is drawn through successive dies to reduce its diameter until the outer surface of the cable is substantially smooth, the cross section of the cable is substantially circular, and the overall diameter of the wire rope is reduced by 20-50%. The cable is then annealed to remove the effects of cold working. The resulting cable has been found to have a substantially equal or improved flexibility (i.e., a lower modulus of elasticity) relative to single strand nickel-titanium wires of the same diameter and a higher radiopacity. In an alternative embodiment, no core wire is utilized, and the higher density wire is drawn with two or more strands of NiTi wire.Type: GrantFiled: October 24, 2000Date of Patent: June 4, 2002Assignee: General Science & Technology Corp.Inventor: Francisco J. Avellanet
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Publication number: 20020062985Abstract: A method of forming flexible communications wire for use in Local Area Networks is disclosed. A plurality of individual metal strands are formed into a central conductor. The central conductor is then compressed and/or heated to bond adjacent strands together and to reduce the diameter of the wire.Type: ApplicationFiled: January 23, 2002Publication date: May 30, 2002Inventors: Spring Rutledge, Jim L. Dickman, Mark W. White, Robert Kenny
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Publication number: 20020053462Abstract: A multiple twisted conductor, which comprises at least two individual twisted conductors (1, 2) comprising individual enamel insulated partial conductors (3), and a common sheath (5) enclosing the individual twisted conductors (1, 2). The individual twisted conductors (1, 2) are arranged inside the common sheath (5) without any insulating layer of their own.Type: ApplicationFiled: October 22, 2001Publication date: May 9, 2002Applicant: NEXANSInventors: Joachim Runge, Hans-Joachim Krenzer, Leonard Danel
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Publication number: 20020053461Abstract: A conductor for high-voltage windings comprising a stranded conductor core surrounded an electrical high-voltage insulation comprising an inner semi-conducting layer, an insulating layer and an outer semi-conducting layer. The core being designed to ensure uniform current distribution and to counteract eddy-current losses This is achieved by an electrically insulating oxide layer being provided on a sufficient number of strands to ensure that all strands in the stranded conductor core are electrically insulated from each other.Type: ApplicationFiled: March 2, 1999Publication date: May 9, 2002Inventors: MATS LEIJON, KENNETH JOHANNESSON, STEFAN MILTON, PETER CARSTENSEN, BENGT RYDHOLM, BO HERNNAS, VIJAYA CHANDRAMOULI
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Publication number: 20020050393Abstract: The invention is directed to a telecommunications cable comprising at least two telecommunications sub-assemblies, each sub-assembly comprising at least one group of at least two signal conductors, said at least one group being surrounded by a conductive shield, and the conductive shields of adjacent sub-assemblies being in electrical contact with each other, wherein said at least one group is surrounded by an insulating medium and wherein each of said conductive shields is made of a layer of conductive material deposited on said insulating medium.Type: ApplicationFiled: April 17, 2001Publication date: May 2, 2002Inventor: Koenraad Vermout
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Publication number: 20020050394Abstract: An improved data telecommunications cable according to the invention includes a plurality of twisted pairs of insulated conductors, and a dielectric pair separator formed with a plurality of folds, to provide a plurality of grooves extending along a longitudinal length of the dielectric filler. Each twisted pair of insulated conductors is disposed within a groove of the dielectric pair separator. The data communications cable also includes a jacket assembly enclosing the plurality of twisted pairs of insulated conductors and the dielectric pair separator. The dielectric pair separator separates each twisted pair of insulated conductors from every other twisted pair of insulated conductors with a spacing sufficient to provide a desired crosstalk isolation between each of the plurality of twisted pairs of insulated conductors.Type: ApplicationFiled: May 11, 2001Publication date: May 2, 2002Inventors: William Clark, Joseph Dellagala, Kenneth Consalvo
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Patent number: 6376775Abstract: A conductor and a rotating electric high-voltage machine that includes the conductor has a cable configured for high-voltage operation. The cable may be included as a winding for the rotating electric high-voltage machine. The conductor includes a first strand that is clad with an electrically insulating layer, and a second strand that is uninsulated whereas the first strand and the second strand are arranged in two or more layers of strands. The two or more layers of strands are insulated from one another. Furthermore, the first and second layers of the two or more layers of strands are arranged around a central core where the central core is at least one of an air core and a core of another material. The second strand is positioned so as not to be electrically contacting any other uninsulated strand.Type: GrantFiled: February 9, 1999Date of Patent: April 23, 2002Assignee: ABB ABInventors: Mats Leijon, Kenneth Johannesson, Stefan Milton, Peter Carstensen, Bengt Rydholm
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Patent number: 6365838Abstract: A method of forming flexible communications wire for use in Local Area Networks is disclosed. A plurality of individual metal strands are formed into a central conductor. The central conductor is then compressed and/or heated to bond adjacent strands together and to reduce the diameter of the wire.Type: GrantFiled: May 25, 2000Date of Patent: April 2, 2002Assignee: Krone, Inc.Inventors: Spring Rutledge, Jim L. Dickman, II, Mark W. White, Robert Kenny