Patents Assigned to Nexans
  • Patent number: 6674946
    Abstract: An optical cable (1) has at least two optical fibers (2, 3), composed of plastic, which are surrounded by a common sheath (6) made of insulating material. To ensure functional endurance, even with frequent bending, the optical fibers (2, 3) are stranded together with a short length of lay which is smaller than six times the diameter (D) of an optical fiber (2, 3). In addition, at least two layers of high tensile strength fibers (5) composed of insulating material are stranded around the optical fibers (2, 3), which are stranded together.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: January 6, 2004
    Assignee: Nexans
    Inventors: Gert Warden, Hildegrad Mertens
  • Patent number: 6674009
    Abstract: Nanocomposites containing a clay and an organic compound, in which the clay is a clay bridged by a metal compound, preferably iron oxide and/or aluminum oxide. The organic compound is preferably a polymer. The clay-based nanocomposites have good mechanical properties and good heat resistance. The invention also provides cables containing such a nanocomposite, preferably in their sheath or outer coating. Finally, the invention provides a process for producing the nanocomposite.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: January 6, 2004
    Assignee: Nexans
    Inventors: Lionel Fomperie, Pascal Amigouet, Faïza Bergaya, Tushar Mandalia
  • Patent number: 6663404
    Abstract: A device for transmitting current between two terminals of a cassette (K) between which at least one ribbon cable is arranged that extends in turns. The cassette includes a fixed stator and a rotatable rotor between which the ribbon cable is positioned. One of the two terminals is movable relative to the other. The ribbon cable at its ends is located in the area of the terminals. It is brought out of the cassette at the terminals for the connection of continuing cables (17). At least two plate-shaped contact carriers (18,19) are mounted to the outside of the stator of the cassette. The conductors of the ribbon cable on the one hand and the conductors of a continuing cable on the other hand can be connected to the contact carriers. The contact carriers are connected with one another by elastic snap-in elements to form a unit.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: December 16, 2003
    Assignee: Nexans
    Inventors: Rainer Huscher, Alexander Steinert
  • Patent number: 6657122
    Abstract: A multiple parallel conductor (1), particularly a transposed conductor, for windings of electrical devices and machines is described, which has a plurality of individually electrically insulated partial conductors (3) that together are provided with a common wrapping which comprises a perforated tape (8).
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: December 2, 2003
    Assignee: Nexans
    Inventors: Hans-Joachim Krenzer, Joachim Runge
  • Patent number: 6651317
    Abstract: A method for producing an electrical ribbon cable wherein at least two bare electrical conductors are arranged in parallel and spaced at a distance from each other between two foils of an insulating material that are firmly joined together while enclosing the conductors and fixing them in position. To save the costly adhesive that is typically used, the two foils are ultrasonically welded to each other and to the conductors.
    Type: Grant
    Filed: November 19, 2001
    Date of Patent: November 25, 2003
    Assignee: Nexans
    Inventor: Andreas Pedimonte
  • Patent number: 6649570
    Abstract: A buffer layer structure based on doped ceria for providing optimized lattice match with a YBCO layer in a conductor, a lattice matching layer for use in said structure and process of manufacturing thereof. Said buffer layer comprises a CeO2 layer doped with a dopant, and has a superconductive layer of YBCO on said CeO2 layer. The invention is characterized in that the CeO2 layer is a lattice matching layer.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: November 18, 2003
    Assignee: Nexans
    Inventor: Christian Belouet
  • Patent number: 6649845
    Abstract: An elongate object (e.g., a cable) with at least one transmission element arranged in a core thereof, in which an outer sheath (3) of insulation material is applied over the core. To achieve specific properties of the sheath (3), the sheath is provided with a coating (4) of a cross-linkable insulating material, which is very thin compared to the thickness of the sheath, and the individual properties of which are adjusted to the particular application of the object.
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: November 18, 2003
    Assignee: Nexans
    Inventors: Friedrich Mueller, Gilles Widawski, Andreas Rietz
  • Patent number: 6645411
    Abstract: In a process for the production of conducting wires coated with cross-linked polyethylene in which a granulate made of polyethylene is coated with a fluid cross-linking agent, the coated granulate is melted in an extruder and extruded onto the electrical conducting wire, and the extruded film is cross-linked by being heated to a temperature over the decomposition temperature of the cross-linking agent, a mixture of granulate, meal, or powder made of a polyethylene homopolymer and a polyethylene copolymer is coated with the cross-linking agent and stabilizer, with the portion of copolymer in the coating on the cable lying between 1 and 8 weight percent.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: November 11, 2003
    Assignee: Nexans
    Inventors: Franz Dänekas, Marc Strittmatter
  • Patent number: 6641414
    Abstract: A device for signal transmission between two terminals, having at least one cable (10) accommodated in an essentially circular cartridge (K) and positioned between the terminals. At least one of the two terminals is movable relative to the other. The cartridge (K) comprises a rotor (15) rotatable around its axis (A) and a fixed stator (16), which together delimit an acceptance space (17) serving to accept the cable (10). To allow the utilization of cables (10) of varying widths, a compensation body (18) with variable axial height is applied to at least one of the surfaces of the rotor (15) or stator (16) bordering the acceptor space (17).
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: November 4, 2003
    Assignee: Nexans
    Inventors: Helmut Rebhan, Alexander Steinert
  • Patent number: 6638568
    Abstract: A method of curing cracks in a ceramic shaped body made from ceramic magnet materials or ceramic superconductor materials, in which a filling material which melts at a lower temperature than the material of the shaped body or is flowable at a lower temperature than the material of the shaped body is applied to the surface of the shaped body at least in the area of a crack and/or is introduced into at least one crack, in which the shaped body with the filling material is heated to and maintained at a temperature at which the material of the shaped body does not yet melt or is not yet flowable, but at which the filling material is in at least partially molten and flowable state at least until the fused filling material can penetrate at least partially into the crack, in which the filling material consists of non-metallic or essentially of non-metallic compounds and is at least partially crystallized, and in which the shaped body with the filling material is cooled, wherein the thermal crystallization conditions
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: October 28, 2003
    Assignee: Nexans Superconductors GmbH
    Inventors: Michael Baecker, Joachim Bock, Herbert C. Freyhardt, Andreas Leenders, Heribert Walter, Martin Ullrich
  • Patent number: 6624357
    Abstract: A tubular cable adapter for use in jointing and/or terminating a medium voltage medium voltage paper insulated cable is provided. The cable adapter includes an impregnating compound barrier sleeve (1), a semi-conductive layer (2) partially covering the impregnating compound barrier sleeve, and a support member (3) for maintaining the impregnating compound barrier sleeve and the semi-conductive layer in a radial expanded state, the support member being removable from said impregnating compound barrier sleeve. The tubular cable adapter also has a conductive member (4) covering, at least partially, the impregnating compound barrier sleeve (1) and the semi-conductive conductive member layer (2).
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: September 23, 2003
    Assignee: Nexans
    Inventor: Josef Cardinaels
  • Patent number: 6605781
    Abstract: A cable guide, in particular for an optical or electrical cable for telecommunications, includes a cylindrical portion for coming into abutment via one of its ends against a sealing gasket for mounting at the inlet to a sealed box for protecting splices and containing a gas under pressure in a tubular passage secured to the box, and being designed via its opposite end to be subjected to thrust from a nut screwed onto the tubular passage. This portion is extended away from the box by at least one radially deformable frustoconical tongue having a clamping portion at its end for clamping onto the periphery of the cable.
    Type: Grant
    Filed: April 11, 2002
    Date of Patent: August 12, 2003
    Assignee: Nexans
    Inventors: Michel Milanowski, Alain Vincent
  • Patent number: 6583361
    Abstract: A flexible coaxial cable includes a shield formed by at least one metal tape provided with a metal coating and wound helically around the insulated core of the cable. The shield is sealed to itself in leakproof manner by the coating which is melted so as to bond directly together the overlapping turns of a single tape or the overlapping turns of two superposed tapes by subjecting the cable provided with the shield to peripheral induction heating.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: June 24, 2003
    Assignee: Nexans
    Inventors: Pascal Clouet, Jean-François Guinot, Jean-Jacques Maisseu, François Vaille
  • Patent number: 6584333
    Abstract: The invention relates to a high-temperature superconductor component with a particular cross-sectional area, which has a current-carrying section, the current-carrying section being in contact with a safety conductor in such a way that the critical current flowing on transition of the superconductor to normal conduction can be taken up without damage by the safety conductor in at least 1 second and rerouted, as well as a process for its production.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: June 24, 2003
    Assignee: Nexans Superconductors GmbH
    Inventors: Stephan Gauss, Joachim Bock, Johannes Holzem, Guenter Brommer, Markus Grom, Werner Horst
  • Patent number: 6584258
    Abstract: The present invention is an improved method and apparatus for peeling matrix material from a fiber optic ribbon structure. The present invention uses a peel tool which has a base portion and a lever portion, where the two portions are connected to each other such that they pivot with respect to each other. Both portions are wide enough to allow a fiber optic ribbon to be adhered to opposing surfaces of the lever and base portions when the portions are closed. The ribbon is secured to the opposing surfaces with an adhesive, such that when the lever portion is pivoted away from the base portion an even peel force is distributed across the width of the ribbon matrix, causing an even portion of the ribbon matrix material to be removed, thus exposing the individual fibers for splicing, repair etc. without requiring multiple peel operations.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: June 24, 2003
    Assignee: Nexans
    Inventors: Justin Thompson, Kevin Duncan
  • Patent number: 6576166
    Abstract: A method and apparatus for manufacturing a graded-index plastics optical fiber of continuously varying index profile, starting from a particular polymer P and a particular compound M1, the method including the steps of: preparing two compositions of different refractive index, allowing the compositions to diffuse one into the other, and spinning the compositions so as to obtain the fiber, wherein, prior to extrusion, the two compositions are subjected to active mixing, and extrusion of the fiber is followed by curing.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: June 10, 2003
    Assignee: Nexans
    Inventors: Bernard Perrin, Alain Pastouret, Dominique Morichere, Xavier Andrieu
  • Patent number: 6566605
    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.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: May 20, 2003
    Assignee: Nexans
    Inventor: Daniel Prudhon
  • Patent number: 6556780
    Abstract: The present invention relates to an offshore installation including an oil/gas flowline umbilical installed between a platform—or a shore installation—and a sea bed based template and including an insulated electrical cable conductor connected in series with the steel oil/gas pipe to a power supply. The main features of the invention is that the far end interconnection between the cable conductor (or parallel cable conductors) and the pipe is grounded to seawater to provide a single point grounded system, such that all the current flows in the selected cable conductors, and the system has zero volts at the far end whereby no current is transmitted though the sea. The power supply is insulated from ground and the current is fed from the power supply through the pipe, and returns through the cable, whereby a voltage level of zero Volts is obtained at the far end where the system is grounded, and all the current is forced through the cable(s) and the pipe/flowline.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: April 29, 2003
    Assignee: Nexans
    Inventors: Einar Mjelstad, Oyvind Iversen, Torunn Lund Clasen
  • Patent number: 6550300
    Abstract: An apparatus for producing annularly corrugated metal tubes, particularly the outer conductor of coaxial high-frequency cables, using at least one pressure roller revolving around a plain tube. The corrugations are formed in the plain tube by the teeth of the pressure roller, which is rotatable about an axis at a 90° angle to the longitudinal axis of the tube, and the axis of rotation of the pressure roller, itself in a plane perpendicular to the longitudinal axis of the tube, revolves around the plain tube being fed to the pressure roller as the corrugations are produced. The plain tube in turn rotates the pressure roller by its feed. The tips of the teeth are substantially flat, the tube is tightly guided in a guide bushing (12) in front of and behind the engagement with the pressure roller (13), and the number of teeth (Z) ranges between 7 and 11, preferably between 8 and 10.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: April 22, 2003
    Assignee: Nexans
    Inventors: Ernst Hoffmann, Klaus-D. Jank, Michael Meyer, Robert Strohmeyer, Friedrich Harten
  • Patent number: 6542760
    Abstract: The invention relates a powder in tube type method of making an HTc superconductive multifilament strand having a silver-based matrix, in which: a first envelope is filled with powder reagents for an HTc superconductor; the resulting billet is drawn down into a monofilament strand; said monofilament strand is cut up into lengths and a secondary envelope is filled with the resulting lengths, thereby making a multifilament billet which is drawn down into a multifilament strand; said multifilament strand is cut up into lengths and a new envelope is filled with the resulting lengths, thereby making a new multifilament billet which is drawn down into a new multifilament strand; and it is shaped and subjected to heat treatment; according to the invention, at least one face of the monofilament strand is electrically insulated; and during the first multifilament step the secondary envelope is filled with the resulting insulated lengths.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: April 1, 2003
    Assignee: Nexans
    Inventors: Albert Leriche, Erick Beghin, Gérard Duperray, Denis Legat, Peter Friedrich Herrmann