Patents Assigned to Prysmian S.p.A.
  • Patent number: 11508496
    Abstract: Disclosed is an opto-electric cable including one or more electrical conductors. Each conductor includes an electrically conductive core and an electrically insulating layer surrounding it. The cable also includes an optical unit embedded within one of the electrically conductive cores. The optical unit includes at least two optical fibers and a single buffer jointly surrounding all the optical fibers. Each optical fiber includes a core, a cladding and a coating. Since all the optical fibers of the optical unit are jointly surrounded—and protected—by a single buffer, an optical unit with a reduced size is obtained. This allows reducing the cross section of the electrical conductor in which the optical unit is arranged. In particular, electrical conductors with cross section lower than 10 mm2 are obtained.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: November 22, 2022
    Assignee: PRYSMIAN S.p.A.
    Inventors: Florin Chirita, Vili Popescu, Cristian Gheorghe, Baris Sönmez
  • Patent number: 11506716
    Abstract: It is described an electrical installation measuring system comprising a control and measuring device configured to be installed on an electrical panel of an electrical installation and perform at least one measure of an electrical parameter of the electrical installation depending on an electrical load connected to the electrical installation and transmit command signals along a telecommunication link. The system further comprises a variable load device connectable to the electrical installation and configured to: receive the command signals from the telecommunication link; and assume a plurality of load configurations according to the command signals.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: November 22, 2022
    Assignee: Prysmian S.p.A.
    Inventor: Roberto Candela
  • Publication number: 20220367083
    Abstract: The invention relates to a flame-retardant cable having improved reaction to fire performances, in particular a reduced or null dripping under fire. The cable has a transmissive core and an outermost layer made from a flame-retardant polymer composition comprising: a) 100 phr of polyvinylchloride (PVC) as base polymer; b) 65-90 phr of a metal hydroxide; c) 2-9 phr of antimony trioxide; d) 1-3 phr of an optionally surface-modified sepiolite, and e) 3-10 phr of a Ca/Zn stabilizer.
    Type: Application
    Filed: May 13, 2022
    Publication date: November 17, 2022
    Applicant: Prysmian S.p.A.
    Inventors: Elena RODA, Franco GALLETTI
  • Patent number: 11500034
    Abstract: An electrical cable analysis method includes providing an electrical cable comprising an elongated metallic element and a cable core, the cable core comprising an electrical conductor. The method includes connecting an electrical generator to an electrical circuit including the elongated metallic element, generating, by the electrical generator, a flow of an electrical current along the electrical circuit, detecting a magnetic field associated with the flow of the electrical current in the electrical cable, measuring at least one value relating to the magnetic field along a cable length of the electrical cable, and analyzing the measured at least one value to obtain information about at least one structural aspect of the electrical cable.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: November 15, 2022
    Assignee: Prysmian S.p.A.
    Inventor: Paolo Maioli
  • Patent number: 11500171
    Abstract: The present invention relates to an optical fiber ribbon, comprising a plurality of adjacent optical fiber units extending in a longitudinal direction and arranged in parallel forming an optical fiber assembly having a width, each of the optical fiber units comprising either a single fiber or a group of at most three optical fibers, preferably two optical fibers, encapsulated with a matrix material; and a plurality of successive elongated rectilinear beads of a bonding material being arranged along a length of said assembly; each of said plurality of beads being configured to form an elongated bond between two adjacent optical fiber units of the plurality of optical fiber units; wherein a first bead forming a first bond connects a first pair of adjacent optical fiber units while the successive bond formed by the successive bead, connects a further pair of adjacent optical fiber units, wherein at least one optical fiber unit of the further pair differs from the optical fiber units of the first pair; wherein at
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: November 15, 2022
    Assignee: Prysmian S.p.A.
    Inventors: Ehsan Fallahmohammadi, Brian G. Risch, John R. Sach, Jeffrey Scott Barker, Clint Anderson
  • Patent number: 11502497
    Abstract: A cable gland for securing a cable to a box comprises a tightening element configured to surround the cable, the tightening element having at least two connecting ends mutually approachable to tighten the tightening element on the cable, and a gland body extending along an axial direction between a first end and a second end, the gland body defining a passing through channel extending along the axial direction between the first end and the second end and configured to receive the cable passing through the first and second ends, the gland body surrounding at least partially the tightening element. The cable gland comprises a first locking arrangement configured to lock along the axial direction the gland body relative to the tightening element.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: November 15, 2022
    Assignee: Prysmian S.p.A.
    Inventor: Nathan Paddick
  • Patent number: 11476614
    Abstract: A cable termination system including a power cable sequentially including a first length of exposed outer semiconductive layer, a length of exposed insulating layer and a length of exposed electric conductor, an electric field control element adapted to be arranged around a portion of said power cable, said electric field control element including: first and second longitudinally spaced semiconducting electrodes; a field grading layer longitudinally extending between the first and second semiconducting electrodes and in electric contact therewith; an insulating layer surrounding the semiconducting electrodes and the field grading layer, wherein the first semiconducting electrode is positioned across a first boundary between the first length of exposed outer semiconductive layer and the length of exposed insulating layer, wherein said second semiconducting electrode is electrically connected with said length of exposed electric conductor, a tubular insulating body adapted to house said power cable and said ele
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: October 18, 2022
    Assignee: PRYSMIAN S.p.A.
    Inventors: Paolo Boffi, Stefano Pogliani
  • Patent number: 11467360
    Abstract: A power cable joint includes splices and extra-length portions of first and second optical fibers which are included in respective first power cable and second power cable, and a cable joint sleeve (100). The abovementioned splices and extra-length portions are accommodated in an organizer (10) that includes a tray (20) having a recessed area (22) and configured to shapingly fit to an outer surface (101) of the cable joint sleeve (100). In particular, splices and extra-length portions of optical fibers are housed in an upper surface (21) of the tray (20). The organizer (10) further includes a fastener (40) configured to secure the tray (20) to the outer surface (101) of the cable joint sleeve (100) and a cover (50) configured to at least partially cover the upper surface (21) of the tray (20).
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: October 11, 2022
    Assignee: PRYSMIAN S.P.A.
    Inventors: Nicola Spina, Gaia Dell'Anna
  • Patent number: 11467361
    Abstract: A splice holder tray has a splice holder section that includes a plurality of inclined channels. Each of the plurality of inclined channels includes a first portion presenting a cross section area that is measured on a reference plane, two opposite lateral openings, and a top opening and a bottom opening. The bottom opening has an area smaller than the cross section area.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: October 11, 2022
    Assignee: Prysmian S.p.A.
    Inventor: Fabio Abbiati
  • Patent number: 11460652
    Abstract: An optical-fiber ribbon includes intermittent gaps along its longitudinal length in which no bonding material is present across the width of the optical-fiber ribbon. These intermittent gaps without bonding material (e.g., adhesive beads) help to reduce or eliminate bonding-material interference as the optical-fiber ribbon is positioned within an alignment chuck during preparations for mass-fusion splicing.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: October 4, 2022
    Assignee: Prysmian S.p.A.
    Inventors: Ehsan Fallahmohammadi, Clint Nicholaus Anderson, Luca Giorgio De Rai
  • Patent number: 11460644
    Abstract: An optical connector adapter assembly includes a first optical connector including a first optical connector body; an adapter body extending along a longitudinal direction between a first end and a second end, the adapter body defining a passing through channel extending along the longitudinal direction and configured to receive the first optical connector body at the first end and a second optical connector at the second end. The assembly includes a first locking arrangement to lock the first optical connector with respect to the adapter body along the longitudinal direction; the first locking arrangement including one or more locking elements associated with the adapter body and extending inside the passing through channel along the longitudinal direction towards the first end; a locking portion associated with the first optical connector body and configured to engage with the locking elements; and a retaining element arranged outside the first optical connector body.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: October 4, 2022
    Assignee: Prysmian S.p.A.
    Inventor: Luca Cavenaghi
  • Patent number: 11460636
    Abstract: A fiber separation tool is provided. The fiber separation tool includes a fin configured to maintain the fiber separation tool in a parallel orientation with respect to a plurality of fibers, a hook tip at a first end of the fin, wherein the hook tip is configured to separate the plurality of fibers, a blade disposed in the fin above the hook tip, wherein a portion of a cutting edge of the blade protrudes from a blade opening in the fin, and wherein the blade is configured to slice through a bonding material connecting the plurality of fibers, a lip at each side of the blade opening, wherein the lip is configured to prevent individual fibers of the plurality of fibers from contacting the blade, and a pivot point configured to guide the fiber separation tool between the individual fibers.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: October 4, 2022
    Assignee: Prysmian S.p.A.
    Inventors: Clint Nicholaus Anderson, Ehsan Fallahmohammadi
  • Patent number: 11450455
    Abstract: An electrical cable for vertical applications includes a core having a length L, a sheath surrounding the core and extending through the whole length L and a reinforcing jacket surrounding the sheath and in direct contact therewith. The reinforcing jacket is made of concentric layers including a first layer longitudinally extending from a first cable end (the proximal or upper cable end, in use) towards a second cable end (the distal or lower cable end, in use) substantially along the whole length L. The reinforcing jacket also includes at least one further layer longitudinally extending from the first cable end towards the second cable end for a length shorter than L. At least one layer of the reinforcing jacket is a circumferentially closed metal tube.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: September 20, 2022
    Assignee: PRYSMIAN S.P.A.
    Inventors: Luca Giorgio Maria De Rai, Rosalba Orazi, Marco Tedeschi
  • Publication number: 20220293296
    Abstract: A cable contains a core including a transmissive element and a coating layer made of a coating material. The coating material contains, with respect to the total weight of polymeric materials present in the composition, (i) 70% to 95% by weight of a recycled linear low density polyethylene (r-LLDPE); and (ii) 5 to 30% by weight of an ethylene-vinyl acetate copolymer (EVA). The coating layer shows mechanical properties comparable to those of a virgin polymer composition and better, both before and after ageing, than recycled polymer-based compositions containing recycled LLDPE but free from EVA. The EVA may be added to the r-LLDPE or, alternatively, be already contained in the r-LLDPE as a result of previous LLDPE use. The cable may further contain a skin layer placed around and in direct contact with the coating layer based on r-LLDPE.
    Type: Application
    Filed: March 2, 2022
    Publication date: September 15, 2022
    Applicant: PRYSMIAN S.p.A
    Inventors: Gustaf JONSSON, Ian James GRIFFITHS
  • Patent number: 11442238
    Abstract: An optical-fiber ribbon includes optical fibers (e.g., reduced-diameter optical fibers) arranged in parallel within optical-fiber units, wherein at least one adjacent pair of optical-fiber units is separated by a longitudinal adhesive-free spacing for a portion of the optical-fiber ribbon's length. Typically, each adjacent pair of optical-fiber units is separated by an adhesive-free spacing for a respective portion of the optical-fiber assembly's longitudinal length. In an exemplary embodiment, longitudinal adhesive-free spacings effectively increase the width of an optical-fiber ribbon formed of reduced-diameter optical fibers so that the optical-fiber ribbon achieves a more conventional optical-fiber ribbon width, thereby facilitating mass-fusion splicing using standard splicing equipment.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: September 13, 2022
    Assignee: Prysmian S.p.A.
    Inventors: Ehsan Fallahmohammadi, Clint Nicholaus Anderson, Luca Giorgio De Rai
  • Patent number: 11435541
    Abstract: A fiber management system for managing and distributing optical fibers comprises at least one supporting element, at least one splice tray pivotally mounted on the supporting element around a pivot axis (X), distributing elements for routing incoming fiber modules toward the splice tray and for routing outgoing fiber modules away from the splice tray, the distributing elements being oriented along respective routing directions transverse to the pivot axis. At least one guiding channel is provided on the supporting element for guiding at least the incoming fiber modules toward the splice tray along a direction substantially parallel to the pivot axis (X), and a retention block acts into the guiding channel between a plurality of retention positions wherein each retention position of the retention block defines a respective passageway for the incoming fiber modules.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: September 6, 2022
    Assignee: PRYSMIAN S.P.A.
    Inventor: Fabio Abbiati
  • Patent number: 11424051
    Abstract: An armoured power cable (10) comprises a cable core (11) and an armour layer (21) comprising a plurality of armouring wires (22) laid around the cable core (11), wherein at least 10% of the armouring wires (22) are wavy wires (23) having a zig-zag shape laying on the outer surface of the cable core (11).
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: August 23, 2022
    Assignee: PRYSMIAN S.P.A.
    Inventors: Richard John Pennell, Ian Dewi Lang, Daniel François De Villiers, Andrew Wynn
  • Patent number: 11415766
    Abstract: High density optical fiber distribution sub-rack comprising: a chassis for housing a plurality of shelves, the chassis comprising at least two shelf storage areas placed side by side with each other, at least one shelf housed in one of the at least two storage areas of the chassis, the at least one shelf having an internal hollow seat for connection modules, the at least one shelf comprising one or more connection modules having a plurality of adapters for interconnection optical fibers, the connection modules being arranged in the internal hollow seat of the at least one shelf at the frontal face of the at least one shelf, wherein the at least one shelf is guided so as to be movable towards the external of the chassis by the succession of a translation movement and a rotation movement of the at least one shelf.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: August 16, 2022
    Assignee: PRYSMIAN S P A.
    Inventors: Andrew Barnes, John Shuman
  • Patent number: 11410795
    Abstract: A power cable and a process of manufacturing a power cable, where the power cable includes a core containing stranded electrically conductive wires that are impregnated with a water-blocking composition, wherein the water-blocking composition contains, based on a total weight of the water-blocking composition: (i) a thermoplastic polymer; and (ii) a positive amount of up to 30 wt % of a crosslinked polymer, where the crosslinked polymer is in the form of a powder having a particle diameter less than 900 ?m and the crosslinked polymer is dispersed in the thermoplastic polymer.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: August 9, 2022
    Assignee: PRYSMIAN S.p.A.
    Inventors: David Horton, Tyson Baker, Chris Dekonkoly
  • Patent number: 11410794
    Abstract: The present disclosure relates to an armoured AC cable comprising at least one core comprising an electric conductor, and an armour surrounding the at least one core and comprising ferromagnetic wires, wherein the ferromagnetic wires are permanently magnetized with a remanent magnetic field which is uniform or variable along the cable length L. The present disclosure also relates to a process for producing an armoured AC cable, a method for improving the performances of an armoured AC cable, and a method for reducing losses in an armoured AC cable.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: August 9, 2022
    Assignee: PRYSMIAN S.p.A.
    Inventors: Paolo Maioli, Marco Ruzzier, Monica Lucarelli