Patents Assigned to Prysmian S.p.A.
  • Publication number: 20150207303
    Abstract: A cooling system for cooling a power transmission system that includes a cable configured to carry a current corresponding to a transported electric power may include: a cooling device configured to remove heat from the power transmission system; a power supply system configured to extract a power fraction from the cable and configured to supply the cooling device with the power fraction; and a control unit configured to control an amount of the extracted power fraction in response to a parameter of the electric power. When the parameter is higher than a threshold, the extracted power fraction is equal to a first value that depends on the electric power carried in the cable through a first function. When the parameter is lower than the threshold, the extracted power fraction is equal to a second value that depends on the electric power carried in the cable through a second function.
    Type: Application
    Filed: October 27, 2011
    Publication date: July 23, 2015
    Applicant: PRYSMIAN S.P.A.
    Inventors: Paolo Maioli, Ernesto Zaccone
  • Patent number: 9069114
    Abstract: A single-mode optical fiber for transmitting optical signals includes a central core region for guiding the optical signals, and a cladding region surrounding the core region and including a void-containing annular layer containing randomly distributed voids, wherein the void-containing layer is doped with fluorine at a concentration of less than 1 wt % and has a radial thickness equal to or smaller than 3 ?m.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: June 30, 2015
    Assignee: PRYSMIAN S.P.A.
    Inventors: Antonio Adigrat, Franco Cocchini, Antonio Collaro, Antonello Schiaffo
  • Patent number: 9032809
    Abstract: A method for monitoring at least the bending strain of at least one electric cable provided with at least one peripheral mechanically non-symmetric strength member is provided.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: May 19, 2015
    Assignee: PRYSMIAN S.P.A
    Inventors: Carsten Kemnitz, Davide Sarchi, Bernd Knuepfer, Giacomo Coletta, Arnd-Guenther Carl, Thomas Kittel, Reiner Ewald
  • Publication number: 20150129274
    Abstract: A by-pass system for overhead power lines may include: a housing; a bearing frame in the housing; an outdoor termination linked to the bearing frame; and/or an electrical cable electrically connected to the outdoor termination. The bearing frame may be configured to move between a stand-by position of the outdoor termination and an operating position of the outdoor termination. A by-pass system for overhead power lines may include: a housing; a bearing frame connected to the housing; an outdoor termination connected to the bearing frame; and/or an electrical cable electrically connected to the outdoor termination. The bearing frame may be configured to move between a stand-by position of the outdoor termination and an operating position of the outdoor termination.
    Type: Application
    Filed: June 6, 2012
    Publication date: May 14, 2015
    Applicant: PRYSMIAN S.p.A.
    Inventor: Manuel Mauri Lopez
  • Patent number: 8987599
    Abstract: A flat energy cable includes at least one push-pull strength member; a connecting system connected to the outer surface of a cable sheath; and a plurality of magnets connected to the connecting system.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: March 24, 2015
    Assignee: Prysmian S.p.A.
    Inventors: Thomas Reuss, Thomas Kittel, Arnd Guenther Carl
  • Patent number: 8953915
    Abstract: An electric cable includes a strain sensor longitudinally extending along the cable and including a strain optical fiber arranged within a bending neutral region surrounding and including a bending neutral longitudinal axis of the electric cable, and at least two longitudinal structural elements, at least one of the at least two longitudinal structural elements being a core including an electrical conductor, wherein the strain sensor is embedded in a strain-transferring filler mechanically coupling at least one of the at least two longitudinal structural elements with the strain sensor. With the disclosed cable construction, the strain experienced by the at least one of the at least two longitudinal structural elements is transferred to the strain sensor at least in a strained condition. In the preferred embodiments, the electric cable is a heavy-duty cable.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: February 10, 2015
    Assignee: Prysmian S.p.A.
    Inventors: Davide Sarchi, Bernd Knuepfer, Carsten Kemnitz, Roberto Gaspari, Arnd-Guenther Carl, Enrico Consonni, Thomas Kittel, Reiner Ewald
  • Publication number: 20150009005
    Abstract: Apparatus and method for generating electric energy in an electric power transmission system includes an AC cable including a core, wherein a portion of the core is partially surrounded by an apparatus including a ferromagnetic body and an electrically conducting winding. The ferromagnetic body extends along a longitudinal axis and has, in a cross section taken along said longitudinal axis, a shape defined by an arc. The electrically conducting winding is wound around the ferromagnetic body to form turns in planes substantially perpendicular to the arc.
    Type: Application
    Filed: September 26, 2014
    Publication date: January 8, 2015
    Applicant: PRYSMIAN S.p.A.
    Inventors: Lluis-Ramon SALES CASALS, Joaquin DEL RIO FERNANDEZ, Rafael LARA, Antonio Manuel LAZARO
  • Patent number: 8912889
    Abstract: A method for monitoring the torsion of a cable includes the steps of: providing a cable having an outer surface and extending along a longitudinal direction, the cable being provided with at least one identification tag, preferably an RFID tag, arranged in a tag angular position in a cross-sectional plane taken transverse to the longitudinal direction, the at least one tag storing a tag identification code and being capable of transmitting a tag electromagnetic signal; interrogating the at least one identification tag to receive the tag electromagnetic signal, and detecting the tag electromagnetic signal, wherein the step of detecting the tag electromagnetic signal includes the step of reading the tag identification code and determining the tag angular position of the at least one identification tag. A torsion monitoring system of a cable includes at least one identification tag.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: December 16, 2014
    Assignee: Prysmian S.p.A.
    Inventors: Davide Sarchi, Bernd Knuepfer, Giacomo Coletta, Arnd-Guenther Carl, Carsten Kemnitz, Roberto Gaspari, Thomas Kittel, Reiner Ewald
  • Patent number: 8901426
    Abstract: A flame-retardant cable includes at least one conductor and at least one coating made from a flame-retardant composition. The flame-retardant composition includes: (a) at least one crystalline propylene homopolymer or copolymer; (b) at least one copolymer of ethylene with at least one C3-C12 alpha-olefin, having a density of from 0.860 to 0.904 g/cm3 and a Molecular Weight Distribution Index not higher than 5; (c) at least one ethylene homopolymer or copolymer of ethylene with at least one C3-C12 alpha-olefin having a density of from 0.905 to 0.970 g/cm3; and (d) at least one flame-retardant filler.
    Type: Grant
    Filed: August 5, 2008
    Date of Patent: December 2, 2014
    Assignee: Prysmian S.p.A.
    Inventors: Eduardo Grizante Redondo, Frank Luebbe
  • Patent number: 8895851
    Abstract: A magnetically shielded cable arrangement, comprising at least two AC cables (201-203) comprising a spaced portion extending between two close portions of parallel cables, such spaced portion sequentially including a diverging portion, a widely spaced portion and a converging portion, and an EMF shielding system (1) laid over said at least two AC cables (201-203), said EMF shielding system (1) comprising a conductor (2, 3, 11, 12) having two branches (2, 3) forming a median portion (4, 5) and end portions (7-10), the median portion width being equal to or larger than the AC cables distance in the widely spaced portion and the width at the extremities of the end portions (7-10) being larger than the AC cables distance in the close portions and smaller than the AC cables distance in the widely spaced portion, said conductor (2, 3, 11, 12) comprising an inner electrical path (2a, 3a) and an outer electrical path (2e, 3e) connected together (11, 12) at relevant longitudinal ends.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: November 25, 2014
    Assignee: Prysmian S.p.A.
    Inventor: Paolo Maioli
  • Patent number: 8878066
    Abstract: A power transmission cable includes at least one power conductor, an insulating layer surrounding the conductor to form at least one insulated conductor, a flame-retardant halogen free protective sheath provided in a radially external position with respect to the insulated conductor, wherein the sheath has an inner and an outer layer in contact with each other, the inner layer having a thickness at least equal to a thickness of the outer layer, the inner layer including a polymer material having a glass transition temperature equal to or lower than ?30° C., and the outer layer including a mud resistant polymer material.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: November 4, 2014
    Assignee: Prysmian S.p.A.
    Inventors: Franco Galletti, Eduardo Grizante Redondo
  • Publication number: 20140321850
    Abstract: A modular system for the connection of an external communication network to a user network of a building includes: a user module including: a passage opening of a connection cable of the user network including optical fibres associated with respective users and adapters associated with respective optical fibres of the connection cable of the user network, and an operator module including: an inlet opening of at least one connection cable to the external communication network including optical fibres and an outlet opening of fibre optic connection elements connected to the external communication network and provided with a connector at a terminal end thereof. The user module and the operator module are structurally independent from each other and the external communication network is operatively associated with the user network by means of a connection of the connectors of the fibre optic connection elements with respective selected adapters of the user module.
    Type: Application
    Filed: April 28, 2014
    Publication date: October 30, 2014
    Applicant: PRYSMIAN S.P.A.
    Inventor: Arnaud Le Dissez
  • Patent number: 8872613
    Abstract: Apparatus and method for generating electric energy in an electric power transmission system includes an AC cable including a core, wherein a portion of the core is partially surrounded by an apparatus including a ferromagnetic body and an electrically conducting winding. The ferromagnetic body extends along a longitudinal axis and has, in a cross section taken along said longitudinal axis, a shape defined by an arc. The electrically conducting winding is wound around the ferromagnetic body to form turns in planes substantially perpendicular to the arc.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: October 28, 2014
    Assignee: Prysmian S.p.A.
    Inventors: Lluís-Ramon Sales Casals, Joaquin Del Rio Fernàndez, Rafael Lara, Antonio Manuel Lazaro
  • Patent number: 8864503
    Abstract: A biasing connector for biasing a shielding element of a power cable in connection with a cable joint, wherein an external sheath extends over a length of a cable sheath, may include an end portion configured to contact the shielding element and a conductive tape having a first end, connected to the end portion of the biasing connector, and a second end, configured to connect to a terminal providing a biasing voltage. At least one portion of the conductive tape may include at least one layer of a solid flat element having a width substantially equal to a transversal width of the conductive tape. The at least one portion of the conductive tape may be at least partly covered by the external sheath.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: October 21, 2014
    Assignee: Prysmian S.p.A.
    Inventors: Didier Charpentier, Thierry Charpentier, Stephane Tognali
  • Patent number: 8816700
    Abstract: A partial discharge detection device for detecting and measuring partial discharges in electric systems or components, which delivers signals having a form much resembling that of the radiated pulse, for improved identification and analysis. The device is of small size, totally insulated and self-powered, and allows measurements to be performed with the highest safety with no need for direct connection, thereby allowing operators to stand at a distance and avoid any system shutdown while making measurements. Furthermore, it can also detect and deliver the sync signal, which is obtained by picking up the supply voltage of the discharge generating components.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: August 26, 2014
    Assignee: Prysmian S.p.A.
    Inventors: Antonio Di Stefano, Roberto Candela, Giuseppe Costantino Giaconia, Giuseppe Fiscelli
  • Patent number: 8805140
    Abstract: A method for connecting user devices to optical fiber units contained in an optical cable includes: providing an opening in a sheath of the optical cable to access the optical fiber units contained in the optical cable; extracting a segment of at least one optical fiber unit from the optical cable through the opening; inserting a free end of the extracted segment of optical fiber unit into a protection tube; making the protection tube slide on the extracted segment of optical fiber unit to insert an end portion of the protection tube, distal from the free end of the extract segment of the optical fiber unit, into the optical cable through the opening; positioning a closure element on the optical cable in correspondence of the opening so as to substantially realize a closure thereof; securing in a removable way the closure element to the optical cable and bringing the free end of the extracted segment of optical fiber unit in correspondence of a connection point of a user device.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: August 12, 2014
    Assignee: Prysmian S.p.A.
    Inventor: Arnaud Le Dissez
  • Patent number: 8798418
    Abstract: An optical cable includes a buffer tube housing at least one optical fiber, a sheath surrounding such buffer tube and at least one longitudinal strength member embedded in the sheath, in which at least one separation element is provided between a portion of the outer surface of the buffer tube and the inner surface of the sheath, laying in an axial plane not containing the at least one strength member.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: August 5, 2014
    Assignee: Prysmian S.p.A.
    Inventors: Martin Davies, Simon James Frampton, Roger Pike, Ralph Sutehall
  • Patent number: 8792761
    Abstract: An optical fiber includes a glass core and a protective coating consisting of a single coating layer disposed to surround the glass core, wherein the single coating layer is formed from a cured polymeric material obtained by curing a radiation curable composition including: (i) a radiation curable urethane (meth)acrylate oligomer, preferably including a backbone derived from polyoxytetramethylene glycol, (ii) at least one monofunctional reactive monomer, (iii) at least one multifunctional reactive monomer, and (iv) an adhesion promoter.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: July 29, 2014
    Assignee: Prysmian S.p.A.
    Inventors: Lidia Terruzzi, Johannes Adrianus Van Eekelen, Sabrina Fogliani
  • Patent number: 8781282
    Abstract: An optical fiber includes an optical waveguide, a first coating layer disposed to surround the optical waveguide and a second coating layer disposed to surround the first coating layer, wherein the first coating layer is formed by a cured polymeric material obtained by curing a radiation curable composition including at least one (meth)acrylate monomer esterified with at least one branched alcohol having from 9 to 12 carbon atoms, and the second coating layer is formed by a cured polymeric material obtained by curing a radiation curable (meth)acrylate composition including from 0.8% to 1.5% by weight of silica, based on the total weight of the composition.
    Type: Grant
    Filed: November 26, 2009
    Date of Patent: July 15, 2014
    Assignee: Prysmian S.p.A.
    Inventors: Lidia Terruzzi, Silvio Frigerio, Giovanni Villani
  • Patent number: 8781277
    Abstract: An optical fiber cable comprising a polymeric jacket and at least one elongated buffer tube having a substantially circular cross-section and at least one optical fiber disposed within the at least one buffer tube. The optical fiber cable further comprises at least one dummy rod having a substantially non-circular cross-section, wherein the cross-sectional area of each dummy rod is at least 10% less than the cross-sectional area of the at least one elongated buffer tube along a majority of the length of the at least one dummy rod.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: July 15, 2014
    Assignee: Prysmian S.p.A.
    Inventors: Ben Wells, Glenn Falk