Abstract: A braided wire according to the present invention is constituted by weaving a plurality of first long conductors arranged in parallel and a plurality of second long conductors arranged in parallel so as to cross the first long conductors each other. Each of the first and second long conductors has a section which is perpendicular to an axis thereof and flattened such that a thickness of the conductor is decreased toward both end portions in a width direction. The first and second long conductors each having the flattened section are woven such that they are put one on another in a thickness direction.

Abstract: A heat shrinkable shielding tube and a manufacturing method thereof employ an electromagnetic wave shielding material inserted into a heat shrinkable tube and adhered lengthwise thereto. A metallized fabric electromagnetic shielding material may be adhesively bonded inside the tube with a longitudinal stripe of adhesive. The longitudinal edges of the electromagnetic shielding material overlap to prevent electromagnetic leakage. Electrical wires or cables to be shielded are inserted into the shielding tube, and upon heating, the tube tightly engages the wires and provides effective electromagnetic shielding. The heat shrinkable shielding tube provides an outstanding effect in shielding electromagnetic wave radiation, and because the construction and manufacturing processes are flexible, it can also significantly reduce production costs.

Abstract: A sheathing strip with mating side edges that includes a flexible plastic film sheathing strip having a nominal thickness of less than twenty thousandths of one inch, first and second side surfaces, and first and second strip side edges; a first mating side edge formed onto the first side surface of the first side edge of the sheathing strip; and a second mating side edge formed onto the second side surface of the second side edge of the sheathing strip. The first and second mating side edges mate to form a tubular sheath when the sheathing strip is wrapped helically around a bundle of wires or the like.

Abstract: The present invention features a high-temperature, automotive-wire article having a thin wall construction and an operative temperature of at least 135 degrees Centigrade. The wire article is made of an inner core of copper that is surrounded by a single layer of insulation, the latter of which includes an integral composite of two insulations. The inner layer of the composite consists of a fluorocarbon material; the outer layer of the composite is made of an irradiated, cross-linked polyolefin material. The outer layer may be irradiation cross-linked with between approximately 60 to 400 kGy, and preferably between 100 and 200 kGy. The inner and outer layers can optionally be adhesively bonded together or thermal fused together using a meltable resin, in order to form a single layer. The total wall thickness of the composite is less than approximately 0.5 mm.

Abstract: A high speed data transmission cable comprises a pair of primary cables positioned adjacent to each other along their lengths with each primary cable including a pair of generally parallel conductors coupled together and surrounded by insulation. A shield layer surrounds each primary cable along its length to isolate the primary cables from each other. The primary cables and corresponding shield layers are twisted together around a center axis and form a double helical structure, thereby providing improved transmission characteristics in the high speed data transmission cable.

Abstract: A winding element for an electrical machine, in particular a turbogenerator, includes an electrically conductive conductor configuration for carrying an electric current, an insulating layer surrounding the conductor configuration and a protective configuration surrounding the insulating layer. The protective configuration includes an isolating layer disposed like a helix, and an at least slightly electrically conductive contact layer likewise disposed like a helix and overlapping itself. The contact layer traverses or passes through the isolating layer from an inner side facing the insulating layer to an outer side facing away from the insulating layer. A winding assembly for an electrical machine includes an electrically conductive winding support and a winding element circumferentially surrounded and electrically contacted by the winding support.

Abstract: A coaxial radiating cable comprised of a plurality of conductive strips wrapped in coaxial relationship to a center conductor and separated by a dielectric core. The plurality of conductive strips define in combination an outer conductor of the radiating cable and have a width and wrap angle selected to form apertures along the cable in a desired pattern, size and/or shape. The cable is designed to be efficiently and inexpensively manufactured and is designed to be coiled and uncoiled without significant distortion.

Abstract: The invention relates to a sleeve of braided sheath having at least one expanded end whose diameter is greater than the nominal diameter of the sheath; the expanded end includes a certain quantity of adhesive between its component filaments and it is surrounded, at least up to its free edge, by a ring of heat-shrink plastics material. The ring is shrunk in part only so as to be capable of being heat shrunk again once the sleeve has been put into place, thereby clamping the expanded end and fixing the position of said sleeve.

Abstract: A coaxial, fiber optic, or twisted pair cable having a is core surrounded by an armor layer and an outer protective jacket such that relative movement between the armor layer and the protective jacket is permitted. The armor layer has a pair of opposing longitudinal edge portions and is wrapped around a cable core such that a longitudinally extending seam is produced. The outer surface of the armor layer has an adhesive layer disposed thereon for bonding an outer protective jacket thereto. Portions of the outer surface of the armor layer adjacent the longitudinally extending seam are oxidized, thereby effectively neutralizing the adhesive layer. The oxidized portions of the armor layer reduce, if not eliminate, adherence between the protective jacket and the armor layer along the longitudinally extending seam.

Abstract: An electrical cable with, multiple conductors, a dense braid encircling the conductors, a sealant sheath encircling the dense braid, an open braid encircling the sealant sheath, and a sealant layer covering the open braid and entering interstices in the open braid to bond to the sealant sheath.

Abstract: A quad or dual differential pair cable for bi-directional high speed differential signal transmission has a first differential pair of conductors and a second differential pair of conductors. The conductors extend in substantially parallel relation to one another and are electrically insulated from each other by an insulating dielectric. The dielectric and the conductors are surrounded by a conductive metal shield. The dielectric insulates the conductors both from each other and from the shield and is sufficiently crush resistant to maintain the conductors in substantially parallel relation to one another over the length of the cable, The shield may be covered with an optional jacket. Each wire of a differential pair of wires are oriented 180 degrees apart from one another. The distance between any one of the conductors and the shield is equal to or greater than the distance between that conductor and a center axis of the cable.

Abstract: A cable assembly is described, which includes a bundle of wires (14, FIG. 1) and a shield structure (24) around them which is of light weight for aircraft applications, and which provides effective shielding especially against electromagnetic interference. The shield structure includes a metal braiding (32) sandwiched between radially outer and inner shrink tubes (34, 30), with each shrink tube having an electrically conductive coating (42, 40) in contact with the metal braiding. The inner shrink tube, which has a conductive coating on its outside surface, is initially shrunk around the bundle of wires to stabilize their positions. The tubular wire braiding is installed around the inner shrink tube and the outer shrink tube which has a conductive coating on its radially inner surface, is placed around the braiding. Then, the outer shrink is tube is heat shrunk in place. Sandwiching the wire braiding between two metal coatings provides enhanced interference protection.

Abstract: Interconnection cable for transmission of low frequency signals, preferably of audio frequency signals, includes a core (1) ensuring mechanical strength of the cable and surrounded by at least four insulated conductors (2) forming first and second signal path of the cable in equal number. The conductors (2) are covered by an insulation layer (3) of foamed non-polar plastic. A shielding conductor (4) is made of a fabric layer with a density of 55 to 95%, woven of copper wire having a diameter in order of magnitude of several tenth millimeters. An outer shell (5) made of solid plastic covers the assembly of the core (1)/conductors (2)/shielding conductor (4).

Abstract: A lightweight braided metallic shielding is applied to wiring harnesses to protect against lightning strikes and electromagnetic interference (EMI). The braided shielding has an open braid construction which may be as much as 40% lighter in weight and which provides better electromagnetic shielding than conventional braided shielding. The decrease in weight is achieved by utilizing a braid carrier application angle, as measured from the axis of the wire harness, which is as small as about eighteen degrees, so as to produce a braided shield that has as few as four picks per inch. The ensuing braided shield is very flexible and results in a degree of wire harness coverage which may be as low as about 60%, but which exhibits low electrical resistance which contributes significantly to lightning protection and EMI shielding.

Abstract: An electrical cable comprises one or more insulated elongate electrical conductors (1,2), a metal electrical shield 5 surrounding the conductors and a pull-thread 7 that extends along the cable under the shield so that the shield can be cut longitudinally by pulling the thread.The cable can be stripped of shield and jacket simply by pulling the thread and then tearing the end of the shield and jacket off. If desired a second conventional pull thread may be located between the shield and jacket in order to allow the jacket to be removed and the shield exposed.

Abstract: An improved low noise electrical signal transmission cable is disclosed. The cable employs an insulative layer of expanded polytetrafluoroethylene (PTFE) which is bonded in fixed relative position with a surrounding shield layer through use of an adhesive, such as fluorinated ethylenepropylene (FEP) or perfluoroalkoxy polymer (PFA). The bonding process reduces the separation of layers which can sometimes occur with expanded PTFE insulative cables and avoids the generation of unwanted triboelectric signals that can result from such separation.

Abstract: A shielded cable is disclosed having metal coated aramid fibers as the shielding.

Abstract: The present invention features a shielded wire and cable article capable of meeting stringent aerospace specifications and requirements, particularly those pertaining to low weight and high temperature. The article generally consists of an inner conductive core of one or more wires that can be twisted or braided and which can be individually insulated. The conductive core is surrounded by one or more thin layer(s) of insulation about which the shielding of this invention is overlaid. The shielding is made of a woven, braided or served mesh or woven yarn of metal-coated high-performance fibers. The fibers of the mesh or yarn are characterized by high-tensile strength and flexibility and are operative at high temperatures, equal to or exceeding 150.degree. C. When the fibers themselves are braided, the resulting mesh can be braided even more tightly about the interior insulation surface than can conventional meshes.

Abstract: Armored cable sheath is coded for easy visual identification by applying patterns, e.g., colored patterns, along the length of the cable.

Abstract: A shielded coaxial electrical cable for transmission of electrical signals in which very fine wires or light-weight foils are used as shielding materials. The shielding materials are held in place by an adhesive to prevent dislodgement or misalignment of the shielding materials by forces exerted upon them during subsequent manufacturing steps.

Abstract: An electrical cable and a method for manufacturing the electrical cable are provided in which a plurality of insulated conductors have a protective jacket extruded thereabout, the protective jacket having an exterior ribbed surface which includes a plurality of longitudinally extending ribs between which extend a plurality of thermal expansion voids. The protective jacket is formed from a thermally set elastomeric material which is partially cured, and then a protective exterior armor is helically wrapped around the exteriorly ribbed surface of the elastomeric, protective jacket. Then, the electric cable is heated to an elevated temperature for a period of time which is sufficient for fully curing the elastomeric protective jacket formed therein.

Abstract: A high frequency electric cable including at least one inner electrical conductor comprising a twisted strand of conductive wires, wherein a metal tape is taped with overlap around said strand. The overlapping metal tape is used to provide a low linear attenuation and to provide good mechanical strength.

Abstract: An electrically conductive cable is shielded from electromagnetic interference (EMI) with a mesh of aluminum wire that has been treated with a chromate conversion coating. The coating resists corrosion of the aluminum wire and galvanic reaction of the aluminum wire with dissimilar metals, thereby reducing degradation of shield effectiveness due to oxidation and allowing aluminum wire to be used to reduce shield weight in corrosive environments. The mesh may include a less compressible wire, such as tin plated copper, to alleviate cold flow problems.

Abstract: The present invention relates to a cable used to supply electric power to a pump for pumping crude oil from an oil well. It is consisted of an insulating layer, a resin sheath and a metallic sheath sequentially layered onto the surface of a conductor. A protective layer comprised by a wrapping of thermal resistant tape is formed at the surface of at least one of the insulating layer and the resin sheath. Due to the provision of this protective layer, it is possible to prevent the breakdown of the insulating layer and the formation of holes in the cable caused by pressure changes occurring when the cable is removed from an oil well within the high pressure environment.

Abstract: An electrical system comprises an inverter, a three-phase electric motor and a cable to transfer energy from the inverter to the motor. The cable further comprises a center conductor and two additional conductors disposed about the center conductor. Insulators physically and electrically separate the conductors from one another. Electromagnetic emissions from the cable are substantially prevented due to the construction of the cable.

Abstract: An electrically conductive ribbon is wound into contact with the screen of each of a plurality of individual conductors in a multicore cable and is passed through a continuous boundary aperture in the tubular body portion of a backshell which is rotated to wind the ribbon about the cable until the ribbon tightly fills the space between the ribbon wound portion of the cable and the internal surface of the body portion to anchor the cable to the tubular body portion. The free end of the ribbon is then severed substantially flush with the external surface of the tubular body portion.

Abstract: Lower weight shielded cable assemblies with an enhanced level of shielding effectiveness, e.g. in the range of 0.1 MHz to 20 GHz, comprising a core of at least one insulated conductor element overwrapped with metallized fabric, e.g. characterized as having a surface resistivity less than 100 milliohms/square or as being a metallized fabric coated with at least a layer of copper having a metal density of greater than 50 grams/square meter. Cable assemblies can employ a shielding subassembly comprising braided wire and one or more layers of copper-metallized fabric where the shielding subassembly has a transfer impedance at 10 MHz of less than 50 mo/m. For example, it has been found that cable assemblies employing a four layer wrap of certain metallized fabrics can provide up to 20 decibels improvement in shielding effectiveness over a wide range of frequencies with a 74 percent reduction in weight compared to a standard wire braid/foil laminate shield.

Abstract: The present invention relates to an electric cable which includes at least one cable part and at least one shield which surrounds at least one cable part, and which further includes a plastic or a rubber sheath which embraces the cable part or parts and the shield, wherein each cable part includes a conductor made of copper wire or some other electrically conductive material, and a plastic or a rubber insulating layer. According to the invention, the shield is comprised of one or more prefabricated, woven or braided bands which are placed longitudinally around the cable part or parts. The total width of the shield band or bands can be larger than the perimeter of the underlying construction to allow an overlap of the shield. Different diameters of wire in the shield allow interlocking of the shield about the cable part.

Abstract: Armored cable sheath is coded for easy visual identification by applying patterns, e.g., colored patterns, along the length of the cable.

Abstract: A braided cable having outwardly successive layers including: a core having a transmission medium, the transmission medium being an insulated conductor; a shielding tape surrounding the core and extending longitudinally within and parallel to the length of the cable, the shielding tape having a first edge and an oppositely located second edge, the first and second edge overlapping by inwardly curving towards one another, the shielding tape further having at least one layer of aluminum material and a second layer of polyolefin or polyester material; a cable braid longitudinally surrounding the shielding tape; and an outer jacket longitudinally surrounding the cable braid.

Abstract: A flexible shielded cable that employs a thin metallic foil or plastic metallic foil tape having a metal surface wherein the metallic foil or metal surface is less than 0.0030 inches in thickness disposed about a layer of dielectric material and disposed within a metallic serve or braid. The thin metallic foil prevents or reduces relative movement of the dielectric and the conductor core disposed therein relative to the braid. Preferably, either the metallic foil or braid is a noncopper metal.

Abstract: An angularly adjustable angularly adjustable electrical conduit fitting includes an articulate metal conduit bendable at least 90 degrees about an arc having an inside radius of curvature not exceeding 12 inches, the conduit in its preferred from being between 19 3/4 and 20 3/4 inches long in a contracted state and being extendable by between 21% and 23% of its contracted length and having at one end a conduit coupling and at its opposite end a conduit or wall opening connector.

Abstract: The present invention features a new "filter line" cable having a shield layer of metallized, high-tensile strength fibers. The filter line cable has a conductive core having a primary insulation layer. Over the primary insulation is a filtering layer made up of ferromagnetic particles (ferrite o magnetite) within a polymeric matrix such as Viton, a fluorinated elastomeric polymer. The filtering layer provides the "filter line" protection against internal RFI and microwave interferences traveling down the wire. A shield of metal-coated, high-tensile strength fibers (such as nylon, aramid, etc.) is woven or served to provide a flexible mesh layer of about 95% coverage; this is placed over the filtering layer. The shield layer provides protection against external EMI interference signals. An insulating-jacket layer is placed over the shield layer; it is made of materials such as Teflon, Kapton, fluorinated polyethylenes, carbon-filled fluorinated polyethylenes and combinations thereof, etc.

Abstract: A coaxial cable of the type used for a drop cable for cable television includes flat reinforcing wires forming a reinforcing covering for a foil shield. The coaxial cable includes an elongate center conductor, a surrounding dielectric material, and an outer conductor including the foil shield and the plurality of flat reinforcing wires forming the reinforcing covering for the shield. The flat reinforcing wires may be braided or may be wrapped to form a served covering. The flat wires are preferably sized to have a greater strength than conventional round wires. Therefore, a method for manufacturing the cable may advantageously include the steps of applying the flat wires and extruding an outer protective jacket continuously in tandem to thereby increase manufacturing efficiency.

Abstract: A metal-shielded cable includes a core made of insulated wires each having a conductor coated with an insulation layer. The core is surrounded with a composite metal shield which includes a laminated metal-plastic layer and a shield layer. The shield layer includes a tape formed of woven filaments, which is wound around or aligned longitudinally along the core of the cable.

Abstract: A shielded electric signal cable having at least two semiconductive jacket layers of the same or differing conductivity to cover pinholes, meet variable electrical resistance specifications, and decrease signal transfer from jacket to shield.

Abstract: The present invention features a shielded wire and cable article capable of meeting stringent aerospace specifications and requirements, particularly that of low weight. The article generally comprises an inner conductive core of one or more wires that can be bare or individually insulated, and that can be straight, twisted or braided within the core. The core can also comprise a multicore consisting of a plurality of core members. The conductive core is surrounded by one or more thin layer(s) of insulation about which the shielding of this invention is applied. The shielding comprises a braided or served mesh or woven yarn of metallically coated fibers, characterized by high tensile strength and flexibility. Where the fibers themselves are braided, the resulting mesh can be braided more tightly about the interior insulation surface than can conventional meshes.

Abstract: An electrical cable and method for making the same. The cable includes a plurality of conductors formed into a bundle and surrounded by an armor sheath. A barrier, formed of polyester or polypropylene tape, is disposed directly between the bundle of conductors and armor sheath. The tape is formed into layers, each layer extending over the length of the bundle of conductors. The tape has a thickness of about 1.5 to 2.0 mils. The preferred form of tape has longitudinally extending corrugations providing a corrugated thickness of 8.0 to 10.0 mils. Each layer of tape is applied either helically or longitudinally wrapping the tape around the bundle of conductors. The barrier separates the bundle of conductors and the armor sheath and provides impact resistance against the armor sheath being driven into contact with the conductors.

Abstract: The present invention features a shielded wire and cable article capable of operating more effectively in high power environments. The article generally comprises an inner conductive core of one or more wires that can be twisted or braided and which can be individually insulated. The conductive core is surrounded by one or more thin layer(s) of insulation about which conventional, braided or served mesh shielding is applied. The shielding effectiveness is improved in accordance with this invention by the addition of a layer of conductive polymer material above or below the braided or served mesh.

Abstract: A coaxial cable is disclosed that employs a plain stitch wire tube formed by braiding a plurality of flattened individual solid metal conductors. The plain stitch wire tube obtained by braiding the flattened conducting wires acts as an external conductor. The coaxial cable may be used, for example, as a feeder cable for an automobile antenna. The coaxial cable thus obtained provides improved shielding against inductive interference and can be manufactured at a lower cost compared with conventional cables.

Abstract: The present invention features a shielded wire and cable article capable of meeting stringent aerospace specifications and requirements, particularly that of low weight. The article generally comprises an inner conductive core of one or more wires that can be bare or individually insulated, and that can be straight, twisted or braided within the core. The core can also comprise a multicore consisting of a plurality of core members. The conductive core is surrounded by one or more thin layer(s) of insulation about which the shielding of this invention is applied. The shielding comprises a braided or served mesh or woven yarn of metallically coated fibers, characterized by high tensile strength and flexibility. Where the fibers themselves are braided, the resulting mesh can be braided more tightly about the interior insulation surface than can conventional meshes.

Abstract: An electro-mechanical cable for use in cable deployed pumping systems includes a containment layer surrounding a cable core and constructed to restrain outward radial expansion of the core while permitting longitudinal expansion.

Abstract: A crush, kink, and torque resistant, flexible coaxial cable having a closely spaced, spiralled rigid metal wire layer between the outer conductor of the coaxial transmission line and the outer jacket of the cable. Small size light weight, good flexibility with minimum spring-back and excellent crush resistance are provided together with excellent kinking, and torque resistance. This eliminates the need for external ruggedization to protect the electrical properties of the cable.

Abstract: A magnetic wave shield tape comprises a strip-shaped conductive member and a strip-shaped insulative member, the strip-shaped magnetic member being fixed to and overlapping the strip-shaped insulative member in the width direction.

Abstract: The invention relates to an electric cable comprising a braid which consists of crossed metallic braiding elements and surrounds the cable core, in which braided non-metallic elements of a high tensile strength are braided. Improved values for resistance to interference radiation and damping are obtained in that the metallic braiding elements and the non-metallic elements are arranged radially one over the other in parallel.

Abstract: A shielded cable comprising an assembly of one or more core wires and a shielding member comprising plural element wires around the assembly. The shield member has a single layer structure formed by braiding on the assembly the plural element wires each of which comprises a conductor of high conductivity and spun stainless steel strands woven around the conductor, or a double layer structure comprising two layers, one layer comprising a braid of plural element wires each of which comprises a spun stainless steel strand or spun stainless steel yarns woven around a conductor of high conductivity, and the other layer comprising a braid of plural soft copper wires or copper alloy wires.

Abstract: A coaxial electric cable having a significant reduction in weight for equivalent electrical properties provided by wide spacing of braided or served shielding wires under metal foil, metal-laminated, or conductive tape shielding in a porous expanded polytetrafluoroethylene-insulated cable.

Abstract: An armoured electric cable having integral tensile members to provide additional tensile strength. The tensile members are embedded in an inner PVC jacket which securely grips the central insulated conductors over which it is extruded. The jacket is, in turn, securely gripped by an armour cover formed of a steel strip which is wound helically around the jacket and bites into longitudinal ridges on the jacket. The armour coating has an undulating shape and is covered by an outer PVC jacket which is extruded over it. Thus, in the vertical position much of the weight of the insulated conductors, inner and outer PVC jackets and armour coating can be supported by the tensile members without producing dangerous longitudinal slippage or creepage between them.

Abstract: An electrical assembly for transmitting signals having a wire or cable conductor core, an electrically-insulating jacket surrounding and enveloping the core, and a surrounding braided shield formed from yarns of nickel-plate carbon fibers. Typically each fiber has a diameter of 5-10 microns and the yarn contains 800 to 12,000 fibers.

Abstract: An .?.angularly adjustable.!. angularly adjustable electrical conduit fitting includes an articulate metal conduit bendable at least 90 degrees about an arc having an inside radius of curvature not exceeding 12 inches, the conduit .?.in its preferred from.!. being between 193/4 and 203/4 inches long in a contracted state and being extendable by between 21% and 23% of its contracted length and having at one end a conduit coupling and at its opposite end a conduit or wall opening connector.