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    Method and apparatus for drying and consolidating a preform for optical fibres
    1.
    再颁专利
    Method and apparatus for drying and consolidating a preform for optical fibres 有权

    公开(公告)号：USRE50249E1

    公开(公告)日：2024-12-31

    申请号：US17965365

    申请日：2022-10-13

    Applicant: Prysmian S.p.A.

    Inventor： Stefano Grieco ,  Valeria Caronna ,  Antonio Schiaffo

    IPC: C03B37/014

    Abstract: A process and an apparatus for drying and consolidating an optical fibre preform in a furnace tube comprising a heating chamber, wherein an extension tube having an extension chamber configured to house at least a length portion of the preform is removably joined to the furnace tube and the drying process starts with the preform not completely inserted into the furnace tube, an upper length portion of the preform being surrounded by the extension tube joint to the furnace tube.

    Optical fiber connector and related method
    2.
    发明授权
    Optical fiber connector and related method 有权

    公开(公告)号：US12158622B2

    公开(公告)日：2024-12-03

    申请号：US18447254

    申请日：2023-08-09

    Applicant: PRYSMIAN S.p.A.

    Inventor： Antonio Giglio ,  Kris Roberts ,  Luca Cavenaghi ,  Ian James Griffiths

    IPC: G02B6/38

    Abstract: The invention relates to an optical fiber connector and to a related method for changing the polarity thereof. The connector comprises a ferrule, housing a plurality of terminations of optical fibers, and an inner housing arranged around the ferrule and comprising a rear portion and a front portion configured to be inserted into an optical fiber adapter. The front portion is releasably connected to the rear portion and comprises a frame, configured to surround an outer surface of the ferrule, and a key, extending from said frame along a longitudinal direction of the connector and configured to mate with a corresponding keyway provided in the optical fiber adapter, and The front portion is releasably connected to the rear portion by means of a first coupling member associated to the front portion cooperating with a second coupling member associated to the rear portion, in either one of a first orientation, in which the key extends along an upper wall of the inner housing, said first orientation corresponding to a first polarity of the connector with respect to the adapter, and a second orientation, in which the key extends along a lower wall of the inner housing, said second orientation corresponding to a second polarity of the connector with respect to the adapter.

    Flame retardant electrical cable
    4.
    发明授权
    Flame retardant electrical cable 有权

    公开(公告)号：US12033772B2

    公开(公告)日：2024-07-09

    申请号：US17049684

    申请日：2018-04-26

    Applicant: PRYSMIAN S.P.A. ,  POLITECNICO DI MILANO

    Inventor： Vito Scrima ,  Luigi Caimi ,  Massimo Gola ,  Attilio Citterio

    IPC: H01B7/295 ,  C08F10/02 ,  C08K3/04 ,  C08K3/36 ,  B82Y40/00

    CPC classification number: H01B7/295 ,  C08F10/02 ,  C08K3/041 ,  C08K3/36 ,  B82Y40/00

    Abstract: Disclosed herein are flame-retardant electric cables (10) having a core containing an electric conductor (11) and an electrically insulating layer (12) made from a flame-retardant polyolefin-based composition including a) a cross-linked polyolefin as base polymer, b) silica, and c) carbon nanotubes, wherein the amount of silica is from 5 wt % to 10 wt % of the polyolefin-based composition, and the amount of carbon nanotubes is from 0.5 wt % to 2 wt % of the polyolefin-based composition. Such cables have improved flame retardant performances, especially regarding a lower occurrence of droplets during burning, which render them capable of being certified in higher classes of the current international standards, for example of the standard EN 50399:2011/A1 (2016).

    OPTICAL CABLE FOR BLOWN INSTALLATION
    5.
    发明公开
    OPTICAL CABLE FOR BLOWN INSTALLATION 审中-公开

    公开(公告)号：US20240201461A1

    公开(公告)日：2024-06-20

    申请号：US18389622

    申请日：2023-12-19

    Applicant: PRYSMIAN S.p.A.

    Inventor： Ralph SUTEHALL ,  Susanna SANTAMARIA ,  George Stephen LUCAS

    IPC: G02B6/44

    CPC classification number: G02B6/4438 ,  G02B6/44384

    Abstract: It is disclosed an optical cable for blown installations including a central strength member including at least one optical fibre and a resin layer encasing the at least one optical fibre; at least one tube arranged about the central strength member and loosely housing at least one further optical fibre; and an outer jacket surrounding the least one tube. Also disclosed are an apparatus and a method for manufacturing such optical cable.

    Cable with Joints for the Connection of Cable Armour Non-Metallic Elements
    8.
    发明公开
    Cable with Joints for the Connection of Cable Armour Non-Metallic Elements 审中-公开

    公开(公告)号：US20230326627A1

    公开(公告)日：2023-10-12

    申请号：US18190767

    申请日：2023-03-27

    Applicant: Prysmian S.p.A.

    Inventor： Enrico Maria Consonni ,  Federico Cordo'

    IPC: H01B9/00 ,  F16B7/04

    CPC classification number: H01B9/00 ,  F16B7/0433

    Abstract: The present disclosure relates to a cable comprising a cable core and an armor, the armor being formed by a plurality of consecutive sections of non-metallic tensile elements wound around the cable core, each section including a first non-metallic tensile element connected to a second non-metallic tensile element of the consecutive sections by a joint comprising a first socket and a second socket, each of said sockets comprising a flat body extending longitudinally along a longitudinal axis (S) between a proximal end and a distal end and comprising an inner through bore between a proximal aperture at the proximal end and a distal aperture at the distal end, the first and second non-metallic tensile elements having an end portion being housed in the inner through bore of respectively the first and second socket by the proximal aperture and secured therein by a bonding material, and each inner through bore being shaped to translationally and rotationally lock the bonding material; an interconnecting device translationally and rotationally locked in the distal apertures of the first and the second sockets and allowing the sockets to relatively rotate exclusively around at least one rotation axis (R) perpendicular to a plane where the socket body longitudinal axes (S) of the first and the second sockets lie.

    Flexible power and/or control cable for use on moving applications
    10.
    发明授权
    Flexible power and/or control cable for use on moving applications 有权

    公开(公告)号：US11657926B2

    公开(公告)日：2023-05-23

    申请号：US17465516

    申请日：2021-09-02

    Applicant: Prysmian S.p.A.

    Inventor： Ferruccio Garolfi ,  Valerio Angelo Brambati ,  Elena Roda

    IPC: H01B7/18 ,  H01B7/04

    CPC classification number: H01B7/18 ,  H01B7/041

    Abstract: The present disclosure relates to a flexible cable for use in moving applications, comprising: one or more insulated cores; a filler layer surrounding the one or more insulated cores, having an external surface defining a filler layer external perimeter substantially forming a closed convex polygonal chain with a plurality of line segments connecting consecutive vertices; and an outer sheath surrounding the filler layer and directly applied on the filler layer, having an external surface defining an outer sheath external perimeter forming a continuous closed curve.

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