Abstract: Dry coaxial cable resistant to water penetration, made of a core conductor, a dielectric element based on three layers of polymers, and an external conductor and an extruded cover, characterized because it has swellable protecting elements against water penetration placed between the external conductor and the protective cover.

Abstract: An implantable lead having an elongated lead body and a function conductor extending in the longitudinal direction of the conductor body, the function conductor being provided to implement a medical function of the lead, wherein in addition to the function conductor, a field decoupling conductor loop is provided, which reduces coupling of the function conductor to the outside alternating magnetic field by generating an induction field that is in the opposite direction of an outside magnetic field.

Abstract: Spiral-wound materials, spirals, and shafts made therefrom that have wraps with edges that may nest within one another are described. Such edges allow the spiral to achieve a smaller bending radius, meaning tighter turns and more flexibility due to the ability of adjacent wraps to nest within each other when the shaft is bent. Spirals having wraps with edges capable of nesting can be used in the medical field for devices that track anatomy, such as endoscopes, colonoscopes, catheters, and the like.

Abstract: Novel shielded flat wire pair and cable implement flat, smooth conductors coated with insulation bonded together, providing rectangular cross-sections and equidistant, smooth surfaces for high frequency signal current flow. Flat wire pairs with conductive covers and symmetrically placed shield conductors in grooves between flat wires minimize intra-pair signal flow skew. Shielded flat wire pairs are placed within a cable assembly with adjacent wire pairs oriented orthogonally, minimizing crosstalk and rendering crosstalk common-mode. Such orientation of flat wire pairs is assisted by an internal separator, which may be electrically conductive and grounded providing enhanced pair to pair isolation. Presence of flat wire pairs and an internal separator in a cable positions additional single wires in the cable firmly against a grounded external shield, ensuring a predetermined impedance for these signal wires.

Abstract: The present invention relates to a novel shield structure for an electric cable which is able to cut-off the effect of the external noises as low as the limit thereof. A metal sheet tape including magnesium as a major component thereof having high electro-magnetic shield performance, high vibration absorption performance as well as high heat conductivity being wound spirally on an outer circumference of the electric cable may provide a high performance shield layer. Furthermore in an AV cable, original sounds may be recovered with extremely high faithfulness by forming a shield layer with winding spirally the metal sheet tape, which includes magnesium as a major component and is wound in the counter clockwise direction in the direction viewed from an IN end to an OUT end of an AV cable.

Abstract: A coaxial cable includes a center conductor, a dielectric layer extending around the center conductor, and an outer conductor extending around the dielectric layer. The outer conductor includes winding turns wrapped along a helical path around the dielectric layer in a first lay direction. A wire layer extends around the outer conductor. The wire layer includes winding turns wrapped along a helical path around the outer conductor in a second lay direction. The second lay direction is opposite to the first lay direction.

Abstract: There is provided a shielded cable wherein a metal coated resin tape is helically wound, whereby a plurality of signal cables are shielded, and no sudden signal attenuation occurs in high frequency ranges. A shielded cable has a shield conductor produced by helically winding a metal coated resin tape together around the circumference of a plurality of signal wires, upper and lower metal foils are in electrical contact with each other in overlap parts of the winding of the metal coated resin tape. The metal coated resin tape is formed with one edge part folded back so that the metal foil is disposed on an outward side. The overlap width of the winding of the metal coated resin tape is one-quarter to one-half of the tape width.

Abstract: An outer casing of a control cable has a small stroke loss and a small variation of freeplay length, even when the degree of bending varies. An outer casing is formed so that an armor layer of two threads configuration is formed, in which a trapezoidal wire made of metal and a round wire 17 or an oval wire are respectively aligned and wound spirally, and on the surface of the armor layer, a coating made of synthetic resin is provided. A control cable is formed so that an inner cable is inserted into the outer casing. The ratio of width in the axis direction of the round wire 17 or the oval wire to the width of the bottom of the trapezoidal wire 16 is 0.3 to 2, the ratio of the thickness of the round wire 17 or the oval wire to the thickness of the trapezoidal wire is 0.5 to 1, the ratio of the winding pitch P of the spiral to the outer diameter D2 of the armor layer 13 is 0.25 to 0.8.

Abstract: The present invention relates to a micro coaxial cable with a high bending performance, comprising an inner conductor; an insulating layer configured to surround the inner conductor, and a helical winding conductor configured to surround the insulating layer and having an elongation of 1.5 to 4% and a pitch of 3.0 to 5.0 D.

Abstract: A cable includes an insulated electric wire, a lateral winding layer formed by spirally winding an elemental wire having conductivity on a periphery of the insulated electric wire, a reversal lateral winding layer formed by spirally winding an elemental wire having conductivity in a direction intersecting with the winding direction of the lateral winding layer, a buffer layer formed between the lateral winding layer and the reversal lateral winding layer, and a sheath formed on a periphery of the reversal lateral winding layer. Each of a winding angle ?1 of the elemental wire forming the lateral winding layer and a winding angle ?2 of the elemental wire forming the reversal lateral winding layer is an acute angle, and an absolute value of difference between the winding angle ?1 and the winding angle ?2 is not more than 20 degrees.

Abstract: Apparatus for continuous extrusion of an aluminium sheathing on to a core cable includes a rotatable wheel formed with two identical circumferential grooves outwardly bounded by arcuate tooling discharging through radial exit apertures to an extrusion chamber positioned around a portal mandrel. A powered pay-off reel is arranged continuously to supply core cable through the mandrel whilst aluminium sheathing is extruded as a loose fit from extrusion chamber around the core cable. The extruded cable is discharged through cooling device to roller corrugator including a rotating frame mounted on carriage freely moveable axially of the cable and provided with a rotational drive having a roller arranged to form a continuous helical indentation in the sheathing. Pneumatic actuating cylinders positioned on the carriage provide a constant, low magnitude, tension on the portion of the sheath intermediate the extrusion chamber and roller corrugator and limit forces tending to distort the uncooled sheath.

Abstract: The coiled wire armored cable (10) includes transmission wires (14) encased by an insulator (12). A solid protective wire (16) is spirally wound over the exterior of the insulator. The protective wire (16) is fabricated from a metal, such as steel or titanium material, and will have a gauge that prevents a rodent from chewing through the wire. The coils of the protective wire are spaced apart along the length of the cable. The spacing (a) of the coils will be less than the width of the teeth of the rodent so that the coils create a “fence” that prevents the rodent's teeth from contacting the insulator.

Abstract: A conductor includes a central element having a length, a plurality of insulated strands disposed about the central element in at least first and second concentric layers, a layer of a dielectric material having a velocity of propagation disposed around the plurality of insulated strands. Each of the plurality of insulated strands has a conductive element and a layer of insulative material disposed around the conductive element and a length approximately equal to an inverse of the velocity of propagation of associated dielectric materials multiplied by the product of the length of the central element and the number one hundred.

Abstract: A cable for high speed data communications and methods for manufacturing such cable are disclosed, the cable including a first inner conductor enclosed by a first dielectric layer and a second inner conductor enclosed by a second dielectric layer. The cable also includes conductive shield material wrapped in a rotational direction at a rate along and about the longitudinal axis around the inner conductors and the dielectric layers, including overlapped wraps of the conductive shield material along and about the longitudinal axis, the conductive shield material having a variable width. Transmitting signals on the cable including transmitting a balanced signal characterized by a frequency in the range of 7-9 gigahertz on the cable.

Abstract: An electric submarine power cable, in particular for use in hydrocarbon pipeline heating systems and adapted to be installed as a piggyback cable on the pipelines, having a multi-wire stranded conductive core with an outer insulation and at least one outer protective sheath as well as armoring means. The armoring means are incorporated in the conductive core as integral tensile strength wire elements. Moreover, a hydrocarbon pipeline heating system as such, having this submarine power cable.

Abstract: Spiral-wound materials, spirals, and shafts made therefrom that have wraps with edges that may nest within one another are described. Such edges allow the spiral to achieve a smaller bending radius, meaning tighter turns and more flexibility due to the ability of adjacent wraps to nest within each other when the shaft is bent. Spirals having wraps with edges capable of nesting can be used in the medical field for devices that track anatomy, such as endoscopes, colonoscopes, catheters, and the like.

Abstract: A temperature-resistant electrical line comprises at least one central electrical conductor, an insulation, which is made from a mineral material and surrounds the electrical conductor completely, and a metallic outer tube, which bears against the insulation. The outer tube (3) has, over its entire length, a helical notch (4), which is open to the outside, and which is produced once the line is finished by means of a metal-removing tool and whose depth is at least 50% of the wall thickness of the outer tube (3), with a residual wall thickness (5) which ensures the stability thereof.

Abstract: A conductor of an electric cable for wiring, containing a copper alloy material containing 1.0 to 4.5 mass % of Ni, 0.2 to 1.1 mass % of Si, and the balance of Cu and unavoidable impurities, in which the copper alloy material has an average grain diameter of 0.2 to 5.0 ?m.

Abstract: A cable for high speed data communications and methods for manufacturing such cable are disclosed, the cable including a first inner conductor enclosed by a first dielectric layer and a second inner conductor enclosed by a second dielectric layer. The cable also includes conductive shield material wrapped in a rotational direction at a rate along and about the longitudinal axis around the inner conductors and the dielectric layers, including overlapped wraps of the conductive shield material along and about the longitudinal axis, the conductive shield material having a variable width. Transmitting signals on the cable including transmitting a balanced signal characterized by a frequency in the range of 7-9 gigahertz on the cable.

Abstract: A coaxial cable is disclosed that includes a signal line, an insulating layer for coating the signal line, a first shield having a tape-like conductor wound around the insulating layer and a second shield composed of a conductor provided around the outer periphery of the first shield. The coaxial cable further includes multiple coaxial cables of equal length, a fixing member for bundling the multiple coaxial cables, a signal line connecter for connecting the multiple coaxial cables, and a shield connector for connecting the shields of the multiple coaxial cables.

Abstract: A micro coaxial cable includes an inner conductor; an insulation layer having foaming cells and formed to surround the inner conductor; an over-foaming preventing layer formed to surround the insulation layer for the purpose of uniform forming of the foaming cells; a metal shield layer formed to surround the over-foaming preventing layer; and a protective coating layer formed to surround the metal shield layer.

Abstract: A method of manufacturing an electric cable includes winding together two groups in such a manner as to form a group helix, each group having two twisted-together conductor wires, and where the groups are wound together at a speed that varies between two limit speeds having the same sign and in such a manner that the pitch of the group helix varies along the cable between two limit values having the same sign.

Abstract: A cable for high speed data communications and method of manufacturing the cable, the cable including a first inner conductor enclosed by a first dielectric layer and a second inner conductor enclosed by a second dielectric layer, the inner conductors and the dielectric layers twisted in a rotational direction at a periodic rate along and about a longitudinal axis and conductive shield material wrapped in the rotational direction at the periodic rate along and about the longitudinal axis around the inner conductors and the dielectric layers, including overlapped wraps at the periodic rate along and about the longitudinal axis. Transmitting signals on the cable including transmitting a balanced signal characterized by a frequency in the range of 7-9 gigahertz on the cable.

Abstract: A cable for high speed data communications and methods for manufacturing such cable are disclosed, the cable including a first inner conductor enclosed by a first dielectric layer and a second inner conductor enclosed by a second dielectric layer. The cable also includes conductive shield material wrapped in a rotational direction at a rate along and about the longitudinal axis around the inner conductors and the dielectric layers, including overlapped wraps of the conductive shield material along and about the longitudinal axis, the conductive shield material having a variable width. Transmitting signals on the cable including transmitting a balanced signal characterized by a frequency in the range of 7-9 gigahertz on the cable.

Abstract: The coiled wire armored cable (10) includes transmission wires (14) encased by an insulator (12). A solid protective wire (16) is spirally wound over the exterior of the insulator. The protective wire (16) is fabricated from a metal, such as steel or titanium material, and will have a gauge that prevents a rodent from chewing through the wire. The coils of the protective wire are spaced apart along the length of the cable. The spacing (a) of the coils will be less than the width of the teeth of the rodent so that the coils create a “fence” that prevents the rodent's teeth from contacting the insulator.

Abstract: A current conductor made of braided wire is provided for use in applications of over 5 A/mm2 density or in pulsating applications. The current conductor is formed by braiding conductor-containing groups (11) of strands that are insulated from one another, with the groups (11a, 11b) intersecting one another at an angle. The braid has a cross section of closed profile, and within the cross section a spacer (12)is positioned for preserving the shape of the profile and for maintaining spaced the braid portions facing one another. The angle of intersection of the mutually intersecting groups (11) is 90°±30°.

Abstract: A cable for high speed data communications and method of manufacturing the cable, the cable including a first inner conductor enclosed by a first dielectric layer and a second inner conductor enclosed by a second dielectric layer, the inner conductors and the dielectric layers twisted in a rotational direction at a periodic rate along and about a longitudinal axis and conductive shield material wrapped in the rotational direction at the periodic rate along and about the longitudinal axis around the inner conductors and the dielectric layers, including overlapped wraps at the periodic rate along and about the longitudinal axis.

Abstract: The cables include belted insulated conductors, a compression and creep resistant jacket surrounding the insulated conductors, a filler material and compression resistant filler rods placed in interstitial spaces formed between the compression and creep resistant jacket and the insulated conductors, and at least one layer of armor wires surrounding the insulated conductor and compression and creep resistant jacket. The filler material may be a non-compressible filler material.

Abstract: A coaxial cable (10) includes at least one conducting wire (110), at least one insulating layer (120) coating a respective conducting wire (110), at least one shielding layer (130) surrounding the at least one insulating layer (120), and a single sheath (140) wrapping the at least one shielding layer (130). The shielding layer (130) is a carbon nanotube film.

Abstract: A high voltage ignition wire (10) has a ferrite core, a coiled wire (14) surrounding the core, and an insulating sheath surrounding the coiled wire. The coiled wire (14) is made from theoretically pure copper having a strand diameter of 0.081-0.099 inches. The coiled wire (14) is wound around the core between 140 and 160 turns per inch. The specific construction of this high voltage ignition wire (10) achieves an advantageous resistance of 13.5-16.5 ohms/ft.

Abstract: A current-seen cable, includes a main cord as a power cord or a signal cord and a plurality of electroluminescence cords, said a plurality of electroluminescence cords are arrayed abreast and are intertwisted helically in sequence to be a electroluminescence cable which is insulated from the main cord and emit light section by section, in which every electroluminescence cord is controlled by a driver working in synchronization with the main cord to emit light in sequence. Said current-seen cable is driven to emit light by a plurality of output drivers controlled by the program-operated chip.

Abstract: A coaxial cable (10) includes at least one conducting wire (110), at least one insulating layer (120) coating a respective conducting wire (110), at least one shielding layer (130) surrounding the at least one insulating layer (120), and a single sheath (140) wrapping the at least one shielding layer (130). The shielding layer (130) includes a number of carbon nanotube yarns.

Abstract: The invention provides an electrical cable reuse method which reduces a long time stock of cables. For assembling a wiring harness, step S1 reuses special electrical cables stocked in an electrical cable storehouse, and the cables having been colored in a first color are coated with a second color. Step 2 cuts ordinary cables and special cables each in a desired length, removes a part of a cable sheath of each cable, and fits a terminal piece to the exposed part. Step 3 connects ordinary cables and the special cables with each other. Step 4 inserts the terminal piece into a connector housing.

Abstract: Coaxial and twisted pair conductive yarn structures reduce signal crosstalk between adjacent lines in woven electrical networks. A coaxial conductive yarn structure includes an inner conductive yarn having a plurality of conductive strands twisted together. An outer conductive yarn is wrapped around the inner conductive yarn. An insulating layer separates the inner and outer yarns. A twisted pair conductive yarn structure includes first and second conductive yarns, each including a plurality of conductive strands being twisted together. The first and second conductive yarns are twisted together to form a helical structure. In a woven electrical network, at least one conductor of adjacent conductive yarn structures is connected to ground to reduce signal crosstalk. Coaxial and twisted pair yarn structures may also be formed simultaneously with weaving or knitting the threads that make up the structures into a fabric.

Abstract: A shield cable, in which a winding looseness of a shield layer due to twisting can be decreased and a short-circuit between a shield layer and signal conductor as well as a disconnection of the signal conductor is prevented, and a wiring component and information apparatus having the shield cable are provided. A twisted conductor is covered with an insulator to form an insulated wire with an outer diameter of 0.3 mm or less. This insulated wire is covered with a shield conductor and a sheath so as to form a shield cable. The shield conductor consists of a plurality of shield layers. The first shield layer at an inner most part is formed by winding conductors spirally with a scroll pitch of 7 to 13 mm. One shield cable may contain two insulated wires.

Abstract: Cables used with wellbore devices to analyze geologic formations adjacent a wellbore are disclosed. The cables include one or more armor wires formed of a high strength core surrounded by a corrosion resistant alloy clad. The cables may be employed as a slickline or multiline cables, where the armor wire is used to convey and suspend loads, such as tools, in a wellbore. The cables may also be useful for providing wellbore related mechanical services, such as, jamming, fishing, and the like.

Abstract: Disclosed are durable corrosion resistant wellbore electrical cables including a coated electrical conductor, a polymeric protective layer for trapping coating flakes, a first insulating jacket disposed adjacent to the polymeric protective layer and having a first relative permittivity. A second insulating jacket is disposed adjacent to the first insulating jacket and has a second relative permittivity that is less than the first relative permittivity. Another aspect of the invention is a method for manufacturing a cable that includes providing a coated electrical conductor, extruding a polymeric protective layer over the coated electrical conductor, extruding a first insulating jacket over the protective polymeric layer, and extruding a second insulating jacket thereon. Cables of the invention may further include armor wire layers or even current return conductors.

Abstract: An ignition wire having low resistance and high inductance includes a ferrite core, a coiled wire surrounding the core, and an insulating sheath, where the high voltage ignition wire exhibits a resistance of 130-210 Ohms/ft and an inductance of 44-104 ?H. The coiled wire may have a diameter of 0.07-0.11 mm, 110-180 turns/in. and comprises a CuNi-based alloy. The coiled wire is preferably made of a CuNi-based alloy having, by weight, 80-95% Cu and 5-20% Ni. The ferrite core may include a core stranding which includes a ferrite core coating. The ferrite core coating may include, by weight, about 5.0-8.4% carbon, 31.7-37.8 oxygen, 1.5-1.7% copper, 0.6-0.8% aluminum, 0.1-0.2% sulfer, 7.0-11.6% zinc, 2.4-3.3 nickel and the balance iron and minor amounts of impurities.

Abstract: 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.

Abstract: Electric cables used with wellbore devices to analyze geologic formations adjacent a wellbore including at least one insulated conductor, and one or more armor wires surrounding the insulated conductor, the armor wires formed of a high strength core surrounded by a corrosion resistant alloy clad. The alloy clad includes such alloys as beryllium-copper based alloys, nickel-chromium based alloys, superaustenitic stainless steel alloys, nickel-cobalt based alloys, nickel-molybdenum-chromium based alloys, and the like. The cables of the invention may be any useful electric cable, including monocables, quadcables, heptacables, quadcables, slickline cables, multiline cables, coaxial cables, or seismic cables.

Abstract: A coaxial element wire includes a center conductor, an insulation layer, and an outer conductor. The insulation layer is provided around the center conductor, and it has a thickness of 0.15 mm or less. The outer conductor is a ribbon-shaped conductor obtained by pressing a copper or copper alloy round wire into a flat form, without annealing after pressing. This ribbon-shaped conductor is spirally wrapped around the insulation layer to thereby form the coaxial element wire. The coaxial element wire may be covered with a protective jacket, and plural coaxial wire elements may be joined into a common jacket to form a multicore cable.

Abstract: A cable includes a central insulated conductor with a plurality of outer insulated conductors disposed around the central conductor. Interstices formed between the central conductor and outer conductors are at least partially filled with a filler material. Filler materials suitable for high temperature use are included. A jacket encases the filler material and the central and outer conductors. In some embodiments a yarn strand is disposed in the interstices.

Abstract: An electroluminescent wire core having a flexible central electrode, a luminescent layer and a transparent, conductive layer. An outer surface of the central electrode is coated with the luminescent layer and the transparent, conductive layer respectively. In the transparent, conductive layer is disposed luminescent power which is covered by thermoplastic macromolecular polymer and synthetic resin.

Abstract: A physiological effect device comprising an elongate flexible member, band or strip having a magnetically inductive core around which is coiled at least one insulated electrically conductive wire. The conductive wire can act as a solenoid and utilize the small electrical pulses normally sent around or through a subject (such as an animal) wearing the device and thereby induce a (therapeutic) magnetic field in the core. The device may provide a useful induced magnetic field for physiological effects even when at rest and/or may absorb electrical pulses (such as those associated with pain in an animal). The device may further be arranged to absorb or screen radiation (such as microwaves or the like).

Abstract: A coaxial element wire includes a center conductor, an insulation layer, and an outer conductor. The insulation layer is provided around the center conductor, and it has a thickness of 0.15 mm or less. The outer conductor is a ribbon-shaped conductor obtained by pressing a copper or copper alloy round wire into a flat form, without annealing after pressing. This ribbon-shaped conductor is spirally wrapped around the insulation layer to thereby form the coaxial element wire. The coaxial element wire may be covered with a protective jacket, and plural coaxial wire elements may be joined into a common jacket to form a multicore cable.

Abstract: A cable has three or more conducting layers which are mutually separated by isolating layers, resistive layers, or reduced electrical contact surfaces. The conducting layers include electrical conductors helically arranged with predetermined pitch lengths. The predetermined pitch lengths increase in steps from layer to layer from a radial innermost conducting layer to an intermediate conducting layer located between the radial innermost conducting layer and a radial outermost conducting layer, but the predefined pitch lengths remain substantially constant or decrease in steps from layer to layer from the intermediate conducting layer to the radial outermost conducting layer. As a result, an even current distribution and, thereby, a reduced AC loss is obtained.

Abstract: A protective sheath is intended to cover a flexible tube or hose used for conveyance of a working fluid to a hydraulic or pneumatic device, and is formed of a strip that is helically wound around an outer surface of the flexible tube. The strip comprises: a core of electrically insulating and flame retardant material; and a core-covering layer of electrically conductive and flame retardant material having a first surface portion intended to contact the outer surface of the flexible tube, and a second surface portion opposite to the first surface portion and forming an on sight surface of the strip when it is wound around the flexible tube. The core-covering layer of electrically conductive material dissipates electrostatic charges which are formed on the outer surface of the flexible tube, and protects the outer surface of the flexible tube from wear and flame by performing a flame retardant action.

Abstract: A medical electrode cable has an exterior, tubular insulating sheath containing a number of side-by-side wires arranged substantially parallel to the sheath and helically proceeding around and,along a longitudinal axis. At least one of the wires is a low-resistivity conductor, and at least two of the wires are high-resistivity conductors. All of the wires have equal diameters. The low-resistivity conductor is a wire having a core of a low-resistivity material encased in an exterior jacket of the same high-resistivity material which forms the high-resistivity conductors.

Abstract: An electrically conducting lead (10) suitable for human implantation. The lead comprises a spiral coil of relatively electrically conducting material, such as one more metal wire strands (11) embedded for at least a portion of its length within an elongate member of relatively electrically insulating material (12). The lead (10) is elongatable to a length that is at least 20% longer than its relaxed length. The lead (10) also remains electrically conducting when elongated to an elongation length longer than said relaxed length.

Abstract: A physiological effect device comprising an elongate flexible member, band or strip having a magnetically inductive core around which is coiled at least one insulated electrically conductive wire. The conductive wire can act as a solenoid and utilise the small electrical pulses normally sent around or through a subject (such as an animal) wearing the device and thereby induce a (therapeutic) magnetic field in the core. The device may provide a useful induced magnetic field for physiological effects even when at rest and/or may absorb electrical pulses (such as those associated with pain in an animal). The device may further be arranged to absorb or screen radiation (such as microwaves or the like).