301results about "Cable conductor construction" patented technology

A coaxial cable (10) includes at least one conducting wire (110), at least one insulting layer (120) coating a respective conducting wire, at least one shielding layer (130) surrounding the at least one insulting layer, and a single sheath (140) wrapping the at least one shielding layer. The shielding layer includes a polymer material (134) and a plurality of carbon nanotubes (132) embedded in the polymer material. The coaxial cable is, advantageously, an electromagnetic interference (EMI) shield cable.

A coaxial cable includes a core, an insulating layer, a shielding layer, and a sheathing layer. The core includes a carbon nanotube wire-like structure and at least one conductive material layer is disposed on the outside surface of the carbon nanotube wire-like structure. The carbon nanotube wire-like structure includes a plurality carbon nanotubes orderly arranged.

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 metal layer and a carbon nanotube film.

A coaxial cable of the present invention comprises a center conductor, a dielectric surrounding the center conductor, a shielding tape surrounding the dielectric, a braided metal surrounding the shielding tape, and an outer jacket surrounding the braided metal. The shielding tape comprises: (i) a first shielding layer bonded to a first separating layer; (ii) a second shielding layer bonded to the first separating layer and a second separating layer; and (iii) a third shielding layer bonded to the second separating layer. The present invention eliminates the potential problem of the outer shielding structures separating and interfering with connector attachment. Furthermore, the use of three or more shielding layers in the shielding tape of the present invention improves the flex life of the shield tape by covering micro-cracks in the metal layers with additional shielding layers, thus reducing signal egress or ingress. Accordingly, the present invention provides cost savings and/or an improvement in shielding performance.

A method of making a coaxial cable includes forming a conductive tube and setting a settable material therein to define an inner conductor. Forming may include advancing a conductive strip and bending it into a tube having a longitudinal seam. The settable material may be dispensed onto the conductive strip continuously with the forming. Alternately, the settable material may be dispensed onto the conductive strip prior to advancing. The dispensing may use a puller cord as the settable material or carrying some or all of the settable material. The method may further include forming a dielectric layer surrounding the inner conductor, and forming an outer conductor surrounding the dielectric layer.

A shielded electrical transmission cable includes an elongate inner conductor and an elongate shield member surrounding the inner conductor. The shield member is formed of at least one copper clad aluminum shield wire including a core including aluminum and a cladding surrounding the core and including copper.

A jumper coaxial cable assembly includes a jumper coaxial cable and at least one solder-type connector secured thereto. The cable may include an outer conductor, which, in turn, includes aluminum with a tin layer thereon. The tin layer permits an aluminum outer conductor to be used, yet facilitates soldering of the solder-type connector onto the outer conductor. The tin layer may be a tin alloy, such as a tin/lead alloy, for example. The outer conductor may have a continuous, non-braided, tubular shape, and the tin layer may extend continuously along an entire length of the outer conductor. The tin layer may be readily formed by tin plating during manufacturing of the jumper coaxial cable. The jumper coaxial cable assembly may be joined to a main coaxial cable and/or to electronic equipment.

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.

A multipair differential signal transmission cable includes a plurality of differential signal transmission cables being bundled and each including two signal conductors as a differential pair covered with an insulation and a first shielding tape conductor provided therearound. The first shielding tape conductor is longitudinally lapped so as to have an overlapping portion in a cable longitudinal direction. The plurality of differential signal transmission cables include at least one or more pairs of two adjacent differential signal transmission cables. The two adjacent differential signal transmission cables are arranged such that the overlapping portion of one of the two adjacent differential signal transmission cables does not face the other of the two adjacent differential signal transmission cables.

A coaxial cable includes an internal insulating layer formed on an outer periphery of an electric conductor, and a conductive layer formed on an outer periphery of the internal insulating layer, wherein the conductive layer is made of a metal nanoparticle paste sintered body obtained by sintering metal nanopraticles by irradiation of light toward a metal nanoparticle paste, and an external insulating layer is formed on an outer periphery of the conductive layer.

A cable is provided, the cable includes: a conductor configured to propagate a signal; an elastomeric layer surrounding the center conductor; and a conductive topcoat layer surrounding and bonded to the elastomeric layer. The conductive topcoat layer includes a suspension of conductive particles. The conductive topcoat layer is formed by curing a topcoat and conductive paste mixture applied to the elastomeric layer.

A shielded cable includes an inner conductor, a first insulator, a first outer conductor, a second insulator, and a second outer conductor, which are coaxially disposed in this order from an inner side, and has an outer circumference coated by an insulation sheath.

A differential signal cable includes a pair of signal line conductors for transmitting differential signals, an insulation collectively covering the pair of signal line conductors, a shielding tape wrapped around the insulation, and an insulating tape wound around the shielding tape. A gap is formed between an outer peripheral surface of the insulation and an inner surface of the shielding tape such that the insulation is movable relative to the shielding tape.

Fire-resistant coaxial cables are described as well as methods to manufacture them. The dielectric between the coax cable's central conductor and outer coaxial conductor ceramify under high heat, such as those specified by common fire test standards (e.g., 1850° F./1010° C. for two hours). The dielectric can be composed of ceramifiable silicone rubber, such as that having a polysiloxane matrix with inorganic flux and refractory particles. Because thick layers of uncured ceramifiable silicone rubber deform under their own weight when curing, multiple thinner layers are coated and serially cured in order to build up the required thickness. A sacrificial sheath mold is used to hold each layer of uncured ceramifiable silicone rubber in place around the central conductor while curing. The outer conductor can be a metal foil, metal braid, and/or corrugated metal. Another layer of extruded ceramifiable silicone dielectric or an outer wrap of ceramic fiber yarn surrounds the outer conductor and continues to insulate it from the outside if a low smoke zero halogen jacket burns away. Methods of testing and installation are described.

The present invention comprises a shielding tape comprising at least one shielding layer, at least one separator layer, a first (inner) edge, and a second (outer) edge. The shielding tape further includes an indicator extending along at least a portion of the outer edge. The indicator is for identifying the outer edge when the outer edge overlaps the inner edge when the shielding tape is positioned onto a cable. Alternatively, both edges may have an indicator. The present invention makes it easy to locate the outer edge of the shielding tape for an installer wishing to remove at least some of the shielding tape before crimping or compressing a connector onto the end of a cable.