Abstract: A telecommunications cable is disclosed in which a plurality of inwardly extending projections from the cable jacket, form a first and second plurality of substantially parallel longitudinal channels within the cable jacket. The first and second plurality of longitudinal channels are spaced apart from one another with respect to a reference line that transverses the cable, wherein the plurality of inwardly extending projections provide the spaced apart distance between the first plurality and the second plurality of longitudinally extending channels and between corresponding transmission media disposed within the first and second plurality of longitudinally extending channels. With this arrangement, cross talk between the transmission media within the cable is reduced and alien crosstalk between adjacently disposed or stacked cables is also reduced.

Abstract: High performance data cables are provided that allows for future growth in networking speeds. The high performance data cables achieve this result while satisfying the dimensional requirements set by the EIA/TIA 568-A standards as well as fire performance safety requirements of the National Fire Protection Association (NFPA). High performance data cables of this invention achieve the above by controlling parameters that influence impedance performance, near-end crosstalk performance and attenuation. A separating filler material is used to maximize the pair-to-pair distance while maintaining an overall maximum outside diameter of 0.250". This construction benefits crosstalk performance, as both electrical and magnetic field intensities are inversely related to distance and dielectric constant (crosstalk is made up of capacitative and inductive coupling, with inductive coupling becoming significant at frequencies above 50 MHz).

Abstract: A high frequency shielded data transmission cable and method of making same are disclosed. Optimal transmission and minimal signal loss are achieved when the conductors of such a cable are maintained in fixed positions relative to one another and relative to the metal shielding. These features are provided by a cable of the instant invention wherein a central core having diametrically opposed spiral grooves hold the insulated conductors in fixed relation to one another. At least one inner layer of dielectric material maintains the insulated conductors within the grooves and provides a fixed spacing between the conductors and the metal shielding. Metal shielding, preferably of braided strips of metal, provides additional strength and flexibility to the cable. The interstitial spaces of the braid may optionally be filled with a filling compound. Likewise, the insulated conductors may be coated with a water-blocking compound to fill any spaces between the conductors and the walls of the grooves.

Abstract: A cable system is provided which can accomodate electrical and optical cabling. The conductors of the system employ a layer which is impedance-matched to space, decreasing their cross-section to electromagnetic interference. The conductors of the system also employ a layer which symmetrizes electromagnetic interference signals, reducing the effect of interference and crosstalk on the signals carried by the conductors. The system also includes a node interface device for connection to a global electrical and fiber network. The node interface device connects to a user interface device through the cable.

Abstract: A communications cable is provided that includes a cable jacket, twisted pairs of insulated conductors, and a spacer separating the twisted pairs of insulated conductors. The spacer extends within the cable jacket and has a longitudinally extending center portion and a plurality of wall portions radiating from the center portion thereby defining a plurality of compartments within the cable jacket. The twisted pairs of insulated conductors are disposed in the compartments thereby reducing cross talk in the communications cable.

Abstract: The invention relates to a connector and a manufacturing method thereof for a three-phase cable including concentric, segmentally disposed phase conductors (1) with surrounding insulation structures (11) and a concentric earth conductor (8) enclosing the phase conductors. According to the invention, the phase conductors (1) inside the connector are isolated from each other by a star-shaped dividing insulation piece (3) keeping the phase conductors (1) separate in their segments. Phase terminals (2) of the connector are disposed on the segment bottoms of the dividing insulation piece (3). The connector further incorporates a clamp (5, 7) suited for pressing the phase conductors (1) against the phase terminals (2) and a ferrule (10) on which the earth conductor (8) can be bent backward to mechanically lock a receptacle.

Abstract: A multiple pair cable with individually shielded pairs and that is easy to connect has a circular cross-section and includes a plurality of individually insulated conductor pairs and an electrical shield around each pair. The electrical shields of the various pairs include a central rod with radial fins separating the pairs from each other and partially shielding each pair and a peripheral shield around the rod and all of the pairs between the fins and completing the shielding of each pair.

Abstract: A push-cable for mechanically and electrically connecting a video camera head to a push reel and a video circuit includes a central resilient push rod made of a composite material such as resin impregnated glass fibers, and a plurality of conductive wires and filler rods helically wound around the push rod. The push-cable further includes a conductive shield layer surrounding the conductive wires and filler rods and sandwiched between inner and outer layers of plastic film tape. A layer of a high pull strength material such as braided KEVLAR surrounds and overlies the film-enclosed conductive shield. The final layer of the push-cable is a co-polymer polypropylene insulating protective layer. The configuration and geometry of the components of the push-cable are preferably designed to achieve a seventy-five ohm impendence and a high signal-to-noise ratio over an extended length.

Abstract: Conductors are placed in insulator which acts as a spacer/centralizer for the conductors, which are in turn mounted within tubing. The void spaces between the insulator and the tubing inside wall can be filled with a sealing material. Alternatively, the voids around the substantially centralized conductors can be used as flow channels for the transmission of fluid pressure to a remote location, such as downhole. The conductors are protected because they are kept away from the tubing wall and can be further protected by the addition of the sealing material.

Abstract: A high speed telecommunication cable includes at least two soft supports, such as a flame retardant polypropylene material, each having a plurality of embedded twisted pair conductors disposed therein and a plurality of wrapped twisted pair conductors disposed about the periphery thereof.

Abstract: A push-cable for mechanically and electrically connecting a video camera head to a push reel and a video circuit includes a central resilient push rod made of a composite material such as resin impregnated glass fibers, and a plurality of conductive wires and filler rods helically wound around the push rod. The push-cable further includes a conductive shield layer surrounding the conductive wires and filler rods and sandwiched between inner and outer layers of plastic film tape. A layer of a high pull strength material such as braided KEVLAR surrounds and overlies the film-enclosed conductive shield. The final layer of the push-cable is a co-polymer polypropylene insulating protective layer. The configuration and geometry of the components of the push-cable are preferably designed to achieve a seventy-five ohm impedence and a high signal-to-noise ratio over an extended length.

Abstract: The present invention is for a high performance data cable which has an interior support or star separator. The star separator or interior support extends along the longitudinal length of the data cable. The star separator or interior support has a central region. A plurality of prongs or splines extend outward from the central region along the length of the central region. Each prong or spline is adjacent with at least two other prongs or splines. The prongs or splines may be helixed or S-Z shaped as they extend along the length of the star separator or interior support. Each pair of adjacent prongs or splines defines grooves which extend along the longitudinal length of the interior support. At least two of the grooves have disposed therein an insulated conductor.

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 four-core balanced transmission cable of the present invention includes four insulated electric wires, a low dielectric center interposition member having a diameter 0.35 to 0.45 times as great as an external diameter of the insulated electric wire, a pressing winding material for compressedly winding the four insulated electric wires and the center interposition member and a covering member for covering an external circumference of the pressing winding material. Accordingly, the four-core balanced transmission cable of the present invention is thin, soft and light so as to meet the standards or requirements for a cabling system of a computer.

Abstract: A high speed telecommunication cable includes at least one filler member having a plurality of twisted pair conductors disposed about the periphery thereof. Preferably, a plurality of twisted pair conductors are helically wound about each of two filler members and form a single layer about each filler member.

Abstract: A multiple wire electric cable (10) having a plurality of conductive wires (12), each formed of a multifilament tensile core (14) of unbonded aramid fibers (16). Said conductive wires (12) further having at least a pair of tinsel conductor ribbons (18, 20), spirally wrapped in the same direction about tensile core (14). Further, each of conductor wires (12) arranged in an orientation wherein the spiral wraps of conductor tinsel in each conductor wire (12) are in alternating directions from one conductive wire to the next.

Abstract: To fix the conductors and coils of wind overhangs and to fill cavities in the winding overhangs of electrical machines, strings are used which include compressible rovings (1) made up of fibers and surrounded by an elastic sheath (2) which is permeable to impregnating resin. A spacing is introduced into the winding overhangs with a thickness which is greater than the spacings to be filled. The strings are impregnated after they are pulled in. To improve the overhang corona shielding, the strings are treated with a conductive impregnating agent which is permeable to the impregnating resin before they are pulled in.

Abstract: This invention relates to a method for transmitting communication signals and electrical power on a cable between two spaced apart locations, for example between a land based control center and an offshore installation. The communication signals are transmitted over at least two twisted pairs The conductors of each twisted pair are connected in parallel to constitute a power conductor. The communication and power transmissions are separated by transformers. The invention also relates to a cable for performing the method. The cable includes at least two power conductors, each being constituted by one pair of twisted insulated conductors, enclosed within an insulation sheath and outer armor and corrosion protection.

Abstract: A failure-resistant electrical ignition system cable comprises first and second terminal contacts for contacting a source of ignition pulses and contacting the predetermined destination of these pulses, respectively; a plurality of flexible ignition conductors connected between the first and second terminal contacts, each of the ignition conductors being capable of electrically communicating the ignition pulses between the terminal contacts, each of the ignition conductors comprising an electrically-inert center, an elongated conductive wire spirally and interstitially wound around the center for substantially the full length thereof, each of the ignition conductors then being twisted about each other so as to provide repeated electrical contacts of the conductive wire of each whereby electrical continuity between the terminal contacts may be maintained despite the occurrence of one or more electrical discontinuities; the outer exposed surfaces of the twisted ignition conductors being electrically insulated b

Abstract: A speaker cable assembly having sets of conductors braided about an enlarged flexible core assembly. The enlarged core assembly allows distant spacing of the individual conductors to minimize electromagnetic field interactions to cause signal anomalies. The conductors are spirally wound about the flexible core and held in place by a potted layer of plastic. The core is preferably filled with lead shot to provide weight to insure stability during use and operation.

Abstract: An annular conductor consists of a central core (dielectric), circumscribed by a tubular helically wound braid of sets of pairs of strands (insulated or uninsulated), with an electrically insulating protective covering around the braid, and an outermost aluminum foil wrapping circumscribing the protective covering.

Abstract: A multiple conductor electric cable (10) having a plurality of conductors (12), each formed of a multi-filament tensile core (14) of unbonded aramid fibers (16). The conductors (12) further have at least a pair of tinsel conductor ribbons (18, 20), spirally wrapped in the same direction about tensile core (14). Further, conductors (12) are arranged in an orientation wherein the spiral wraps of conductor tinsel in each conductor (12) are in alternating directions from one conductor (12) to the next within a thermoplastic insulating jacket (22), which is further encased within polyester jacket (26).

Abstract: A twin-axial cable comprises a central core around which two conductors are helically wrapped. Interspersing a plurality of spacers between the conductors determines the relative placement of the two conductors on the core. A dielectric barrier encases the core, conductors, and spacers.

Abstract: In a transmission cable for low frequencies, first and second elongate transmission lines disposed in generally parallel alignment in close proximity to each other, each transmission line having an inner conductor and a coaxial outer conductor and insulating material disposed between the inner conductor and the coaxial outer conductor, and a jacket of insulating material covering said coaxial outer conductor, said outer coaxial conductor serving as a shield and means for grounding one end of each of the shields.

Abstract: An X-ray cable has a plurality of elements arranged concentrically relative to one another and including from inside toward outside at least one inner conductor, an inner conducting sleeve, a high voltage isolation, an outer conducting sleeve, a screen and a casing. The inner conductor is composed of one or several wires with a thickness between 0.1 and 0.6 mm. At least one of the wires is composed of ferromagnetic material with high permeability at frequencies over 1 MHz, and a direct current resistance of the inner conductor lies under 20 .OMEGA./m, so that without the use of damping members with a frequency above 1 MHz strongly increasing damping of occurring transient over voltages is provided.

Abstract: The present invention is a method of fabricating a wire and cable article capable of meeting stringent aerospace specifications and requirements, particularly that of low weight. The article generally comprises an inner conductive central core of one or more metal-coated fibers. The conductive core is preferably comprised of silver-coated aramid fibers having a silver coating of greater than 30 wt. % of the fiber, and generally several hundred weight percent thereof. The silver is coated upon aramid fibers to provide a cable having approximately half the weight and approximately 15 times the tensile strength of cables having equivalent resistance and/or equivalently sized cores of silver plated copper. The metal coating of the inventive process is accomplished in two steps: (a) a high tensile strength fiber comprising nylon, aramid, etc., is first plated with a first layer of metal such as copper, silver, etc.; and then (b) electrochemically plated with a second layer of metal.

Abstract: Disclosed herein is a wire conductor for a harness, comprising a central portion which is formed of aramid fiber and a conductor portion formed by circularly compressing a stranded wire which is prepared by arranging copper strands around the central portion and braiding the same. The conductor portion has a conductor sectional area of 0.03 to 0.3 mm.sup.2.

Abstract: A cable and termination for high voltage and high frequency current carrying applications includes an inner conductor having a sheath of braided metallic wire and a cylindrical core of flexible material extending within the sheath and supporting the sheath to prevent reduction in diameter of the sheath in response to tensile forces applied to the cable. The core includes one or more wire filaments connected to bear a portion of tensile forces applied to the cable. The inner conductor is encased in an outer insulation assembly which includes a conducting layer, spaced from the sheath and connected for ground return. The cable includes a termination assembly having a socket, connected to the sheath and wire filaments, for receiving an inner conductor of a complementary termination assembly.

Abstract: To minimize the cross-sectional area or the diameter of an electric line that is under tensile stress, a central fibrous element of a carbon fiber bundle is disclosed. This can be designed so it is resistant to the longitudinal entry of water.

Abstract: An electrical cable includes a central bearing part having a plurality of high-tensile plastic filaments. A rubber sheathing encloses the bearing part. An inner and outer conductor are twisted onto the sheathed bearing part and are disposed concentrically to one another. The inner and outer conductors each include stranded wires. The stranded wires of the inner conductor, as well as the stranded wires of the outer conductor, are twisted together to form a lay. The stranded wires of the inner conductor have the same number of lays as the stranded wires of the outer conductor but with opposite directions of lay. An inner separation layer covers the inner conductor and an outer separation layer covers the outer conductor. Additionally, a rubber insulation layer covers the outer separation layer. Finally, an outer covering encloses the outer separation layer.

Abstract: An electrocarrier cable has conductor elements and support or carrier elements. The conductors are lapped on insulating cores and are enclosed in fluorinated sheaths to form conductor elements which are stranded to an elongated central core, preferably with interleaved support elements. A braid of relatively inextensible fibers, i.e., aramide fibers, encloses the conductor elements and is coated with a polyurethane sheath. The cable is arranged such that the aramide fibers fail in tension before the conductors fail, and is particularly useful in a self-supporting cable for carrying low level currents, such as in the field of oceanography.

Abstract: An electrical cable has a single yarn polyamide fiber strength member with a plurality of copper strands positioned adjacent thereto. An insulator jacket is extruded over the copper strands and the strength member to provide a insulated lead of high strength. A foam filler layer is extruded over a plurality of such leads, and a non-porous jacket is extruded over the foam filler layer, providing a light weight, flexible, high-strength, multi-lead cable, which is easily stripped by automated equipment.

Abstract: The invention provides a compact, circular, flexible, and shielded twin-axial, multi-stranded power cable for transferring current instantaneously and with uniform density substantially free from phase delays at 60 Hz. between a high current power amplifier and a standard three-hole 112 volt AC outlet achieving a pure and powerful bass response and clear, brilliant noise-free highs. The cable has two bundles of five insulated conductors helically and symmetrically wrapped around a dielectric center. The gauge of each conductor and total cross-sectional area of the bundled conductors are predetermined to avoid internal inductance and phase delay effects while providing high current instantaneously and uniformly in high-end audio power applications. In between the bundles are located ground wires which run the length of the cable. The bundles and ground wires are spirally twisted around each other for structural integrity and for a generally round cross-sectional shape.

Abstract: A novel cable for computerized monitoring system comprises at least one outer jacket of plastic abrasion resistant material, one inner layer of fiber reinforcing material and another jacket of plastic abrasion resistant material. The end which is intended to be connected to the tool has a clamp to hold the fiber reinforcing material in place and prevent the fiber reinforcing material from being damaged. The clamp is a hollow cylinder about 1 inch in length with a flange, is internally threaded and is provided with at least one, preferably four grooves. When the clamp is snapped over the end of the cable, the threads engage the plastic material of the outer jacket and the reinforcing material is held in the grooves.

Abstract: A low distortion cable made of multi-strand conductors including a dielectric core, a plurality of conductive strands of solid cross-section wrapped around the core in a single layer and a plurality of dielectric spacer strands, at least one of which is interspersed between each adjacent one of said conductive strands to form therewith a single layer of alternating conductors and dielectrics about a core. The support for the conductive strands is only at the lines of contact with adjacent strands and the core. A dielectric insulatr surrounds and supports the layer of strands and core in a unitary assembly, the interstices between strands and dielectrics, where not in contact along lines of support, being filled with a dielectric gas, such as air.

Abstract: A cable assembly formed by a plurality of bundles of twisted wire strands with the wire strands forming at least one bundle being of a different gauge than the wire strands forming at least one other bundle. Insulation means extend around the bundles of wire strands. A pair of cables configured in the above manner are provided to carry the positive and negative signals between a power source and a load.

Abstract: A cable assembly in which a pair of cables are provided to carry the positive and negative signals between a power source and a load. Each cable consists of a conductor wrapped around a dielectric core, and a plurality of bundles of wire strands are twisted around the wrapped dielectric core. The wire strands forming each bundle are twisted in a first direction and the bundles are twisted around the solid conductor in a direction opposite the first direction. Insulation extends around the bundles of wire strands.

Abstract: A communication or control cable having one or more supporting elements made of(a) high-molecular weight reinforcing fibers or filaments having a modulus of elasticity>100 GPa, which are firmly joined to one another by means of(b) a high-molecular weight, crosslinked resin.

Abstract: A method for measuring a surface temperature of a sensor being heat-transferably contacted with a subject fluid by employing an electrically heating method in which the surface temperature is measured while passing an electrical current through an electrical conductor included in said sensor. In this measuring method, the surface temperature is expressed as a function of a specific value inherent in the sensor, an amount of the electric current supplied to the electrical conductor, and a temperature of the electrical conductor. The sensor is heat-transferably contacted with another fluid whose physical properties are previously known, a surface temperature of the sensor contacted with the another fluid is determined by satisfying a relational equation between the physical properties of the another fluid and the surface temperature, and the specific value inherent in the sensor is determined by using the determined surface temperature.

Abstract: An electric wire having an insulating core rope made of aromatic polyamide fiber, an electric insulating intermediate layer of high heat resistant material which covers the electrical insulating core and an outer conductor which surrounds the intermediate core and is composed of wound conductive wires, elongated conductive pieces or a single bent plate. A pipe which may contain an optical fiber may be embedded in the core and the insulating core may include a heat generator located therein.

Abstract: An electromechanical tow cable which includes a central strength member comprised of a plurality of yarns of electrically conducting aramid fibers. The electrically conducting central member is surrounded by a dielectric medium on the surface of which is located two or more groups of electrically conducting wires circumferentially separated by electrically insulating sections. An outer electrically insulating jacket forms a protection for the cable. The central conducting strength member may be utilized for the application of a relatively high voltage which utilizes one of the conducting wire groups as a ground return. Another one of the conducting wire groups may be utilized for a relatively lower voltage which may utilize the same conductor group as the high voltage for a ground return.

Abstract: A heating element made of carbon, comprising a heating member including carbon powder and an insulating resin, the powder being kneaded with the resin, and a core member formed of an insulating material and having a higher fusing point than the heating member, the core member being disposed substantially centrally of the heating member.

Abstract: A two conductor audio cable having no delay from end to end as a function of the frequency of audio signals conducted therethrough. There are a pair of conductor assemblies each comprising an elongated cylindrical core member of a flexible insulating material extending between the ends of the cable. A plurality of strands of an electrical conducting material are longitudinally disposed between the ends of the cable along the outer surface of the core member to define a cylindrical conductor which is, in essence, all "skin". The strands are electrically insulated from one another. A cylindrical support tube of a flexible insulating material is disposed over the core member and extends between the ends of the cable and is supported concentrically about and spaced from the core member by a helically wrapped support tube.

Abstract: A cable in which a core is surrounded by a plurality of bundles of wire conductors. Each bundle is formed by a plurality of wire strands twisted around a central conductor which is wrapped by a strand of dielectric material.

Abstract: A cable in which a dielectric core is surrounded by a plurality of bundles of wire strands with the wire strands forming each bundle being twisted in a first direction and the bundles being twisted around the solid conductor in a direction opposite the first direction. Insulation means extend around the bundles of wire strands. A pair of cables configured in the above manner are provided to carry the positive and negative signals between a power source and a load.

Abstract: A coaxial cable 1 comprises, parallel and coplanar conductors 5 each surrounded concentrically by a separate corresponding dielectric sheath 6, each said dielectric sheath 6 being concentrically encircled by a separate and conductive outer conductor 7, a dielectric jacket 4 surrounding and containing each outer conductor 7, the jacket 4 being helically wrapped along the length of an elongated cord 9, a flexible and conductive film 11 helically wrapped and surrounding the jacket 4, a conductive tubular sheath 14 surrounding the conductive film 11, and an insulative outer jacket 15 surrounding the conductive sheath 14.

Abstract: A core cable is composed of a core member, a conductor spirally wound around the core member, and an insulator covering the outer surface of a layer of the spirally wound conductor. For the core member and insulator, elastic and deformable materials are used, and the core member, conductor, and insulator stretch and contract integrally with each other. When using a non-elastic core member and insulator, a plurality of core cables are spirally wound together to be formed like a coil and then covered with an elastic and deformable sheath so as to be finished into a single line of cable which stretches and contracts due to elasticity of coil-like cables and sheath.

Abstract: So as to eliminate wind dependent displacements in control cables such as are used in container loading facilities, the weight of the cable itself is increased. To this end, braided-over lead cords are arranged in the central elements of each conductor bundle and in the corner spaces of the core. The load-carrying capacity of the carrier member is ensured by high tensile strength plastic filaments in the form of a braid and optionally in the form of corner fillings.

Abstract: To improve the mechanical strength of a rubber hose cable, support elements are arranged between the conductors and the support elements are connected to a high tensile strength wrapping applied with a lay opposite the twisted conductors with adhesion or by cementing.

Abstract: A mechanically stable, wound, multifilar, ribbon-type conductor having a cross-sectional aspect ratio which may be greater than 12:1, comprising a plurality of conductive strands wound to form a flattened helix containing a plastic strip into which the strands have been pressed so as to form a bond between the strip and the strands. The bond mechanically stabilizes the conductor under tension, preventing it from collapsing into a tubular configuration. In preferred embodiments the plastic strip may be polytetrafluoroethylene, and the conductive strands may be formed from a superconductive material. Conductors in accordance with the present invention may be manufactured by winding a plurality of conductive strands around a hollow mandrel; the cross-section of a hollow mandrel; the cross-section of the mandrel continuously varying from substantially circular to a high aspect ratio elipse while maintaining a constant circumference.