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| Number | Title | Issue Date |
| 8150226 | Method and apparatus for manufacturing an optical cable and cable so manufactured A method and apparatus for manufacturing an optical cable comprising at least one metal tube housing at least one optical fiber and having a predetermined excess fiber length (EFL) is described. In this method the metal tube is plastically deformed and shortened by ... | 04/03/2012 |
| 8147739 | Cable manufacturing process A method for manufacturing a cable, the cable including at least one transmissive element and at least one coating layer made of a polymeric material and arranged at a radially outer position with respect to the transmissive element. The method includes the steps of... | 04/03/2012 |
| 8119193 | Method and device for coating the junction area between at least two elongated elements, in particular between electric cables A method of coating the junction area between elongated elements, in particular between electric cables. This method includes the steps of: arranging a rigid tubular support having two axially separable tubular halves; mounting an elastic tubular sleeve in an elasti... | 02/21/2012 |
| 8097809 | Low-smoke self-extinguishing cable and flame-retardant composition comprising natural magnesium hydroxide A cable having a conductor and a flame-retardant coating having (a) a polymer matrix; and (b) natural magnesium hydroxide particles having an average size (d50) of 0.5 μm to 5.0 μm and an average pore diameter less than or equal to 0.35 μm. ... | 01/17/2012 |
| 8044110 | Optical fiber with polymeric coating crosslinked in the presence of both radical and cationic photoinitiators Optical fiber has a glass portion and at least one coating of crosslinked polymer material surrounding the glass portion, the coating being obtained by crosslinking a composition of (a) at least one radically crosslinkable oligomer containing at least two reactive f... | 10/25/2011 |
| 8001808 | Disassemblable burner for a vapor deposition process A burner for a vapor deposition process has a cylindrical central gas passage and a plurality of external gas passages surrounding the central gas passage. The burner has a back block defining an initial section of the gas passages, a face block defining a final sec... | 08/23/2011 |
| 7995886 | Water-resistant optical cable and manufacturing method A method for manufacturing an optical cable for communication includes at least one micromodule, said micromodule being blocked with respect to the propagation of water. The method includes the steps of providing at least one optical fiber; embedding the at least on... | 08/09/2011 |
| 7927531 | Method and extrusion head for extruding a polymeric material An extrusion method and head for depositing by extrusion a polymeric material intended, in particular, for the production of cables includes a core and a coating layer arranged at a radially outer position with respect of the core. The method includes the steps of f... | 04/19/2011 |
| 7921673 | Apparatus and method for measuring the weight of an optical fiber preform during a chemical deposition process for forming the preform An apparatus for measuring the weight of a preform for optical fibers during a chemical deposition process for the formation of a preform is disclosed. The apparatus has at least one elastic constraint associated with at least one end portion of an elongated element... | 04/12/2011 |
| 7908888 | Process for producing a low-attenuation optical fiber A process for producing a low-attenuation optical fiber by producing a soot core preform by chemical deposition on a substrate; removing the substrate from the soot core preform, thereby forming a central hole along the soot preform; drying and consolidating the soo... | 03/22/2011 |
| 7891216 | Method for producing an optical fiber having low polarization mode dispersion A method for producing an optical fiber having low polarization mode dispersion, by the steps of a) providing an optical fiber perform of glass material; b) heating the glass material of an end portion of the optical fiber perform; c) drawing the heated glass materi... | 02/22/2011 |
| 7884284 | Energy cable comprising a dielectric fluid and a mixture of thermoplastic polymers A cable includes at least one electrical conductor and at least one extruded covering layer including a thermoplastic polymer material in admixture with a dielectric liquid, wherein the thermoplastic polymer material includes (a) at least 75% by weight, with respect... | 02/08/2011 |
| 7872197 | Joining method and related junction for electric cables, tubular covering sleeve for electric-cable junctions and process for manufacturing the same A tubular covering sleeve for joints of electric cables may include a primary tubular body and a coating sheath. The primary tubular body may include at least one annular insert of semiconductive material integrated into at least one layer of insulating material. Th... | 01/18/2011 |
| 7865047 | Water-resistant telecommunication cable Telecommunication cable having an elongated element housing at least one transmitting element. The elongated element has a water-soluble polymeric composition of a vinyl alcohol/vinyl acetate copolymer having a saponification degree of about 60% to about 95%; a plas... | 01/04/2011 |
| 7860361 | Water-blocked optical cable and process for the production thereof An optical cable for communication includes at least one retaining element blocked with respect to the water propagation as well as a process for manufacturing such an optical cable. The optical cable includes, in addition to the retaining element, at least two tran... | 12/28/2010 |
| 7849713 | Optical fibre having low splice loss and method for making it A process for making a non-zero dispersion shifted optical fiber having low splice loss and low attenuation and to an optical fiber produced by this process. A reduction of the splice loss is observed with decreasing drawing tension. The optical fiber has a core reg... | 12/14/2010 |
| 7838770 | Method and device for splicing electric cables The present invention relates to a method as well as to a joint assembly (12) for splicing a first and a second eclectic cable (1, 2) by means of a tubular elastic sleeve (15) at a splicing zone (11) between such cables (1, 2), sai... | 11/23/2010 |
| 7816607 | Process for the production of a multipolar cable, and multipolar cable produced therefrom A process for manufacturing a multipolar cable having at least one pair of cores, each core having at least one conductive element and at least one layer of electrical insulation in a position which is radially external to the at least one conductive element. The pr... | 10/19/2010 |
| 7814767 | Method and induction furnace for drawing large diameter preforms to optical fibres An induction furnace capable of drawing large diameter preforms of up to 130 mm is described. The induction furnace has top and bottom chimneys surrounding the entire preform during operation of the furnace with an inert conditioning gas which is introduced into the... | 10/19/2010 |
| 7811494 | Cable manufacturing process A process for manufacturing a cable which includes a conductor; an inner semiconductive layer surrounding the conductor and having a thickness lower than or equal to 0.4 mm; and an insulating layer surrounding the inner semiconductive layer. The process includes the... | 10/12/2010 |
| 7807091 | Method and plant for the introduction of a liquid into a molten mass under pressure A method and plant for the introduction of a liquid into a molten mass under pressure. Such a method and plant are particularly, but not exclusively, suitable for the formation of a coating layer on a cable element having at least one conductor, the layer having an ... | 10/05/2010 |
| 7801404 | Optical cable and optical unit comprised therein Optical cable having at least one tubular element of polymeric material and at least one transmission element housed within said tubular element. The polymeric material is made from a polymeric composition having (a) at least one olefin polymer; (b) at least one ino... | 09/21/2010 |
| 7793522 | Method and apparatus for forming a preform for a micro-structured optical fiber An intermediate preform is formed in a process of manufacturing an optical fibre by forming a sol containing a glass precursor; pouring the sol in a mold containing a set of elongate elements; aging the sol to obtain a gel body; removing the set of elongate elements... | 09/14/2010 |
| 7790222 | Method for producing a coating layer made of expandable and cross-linkable material in a cable A method for producing a cable including at least one transmissive element, for example, an element transmitting electrical energy or optionally optical signals as well, and an expanded and cross-linked coating layer in a radially outer position with respect to the ... | 09/07/2010 |
| 7779651 | Process for manufacturing a micro-structured optical fibre In a process for manufacturing a micro-structured optical fibre, an intermediate preform is made by forming a sol; pouring the sol in a cylindrical mould including a set of structural generating elements defining internal structural elements of the intermediate pref... | 08/24/2010 |
| 7768630 | Method and apparatus for the evaluation of polarization mode dispersion in optical fibers A method of evaluating the Polarization Mode Dispersion (PMD) of an optical fiber by arranging the optical fiber at substantially zero tension on a surface, propagating prescribed evaluation optical signals along the optical fiber, measuring fiber Differential Group... | 08/03/2010 |
| 7764855 | Optical fiber with cured polymeric coating An optical fiber having: a) a glass portion; and b) at least one protective coating layer disposed to surround the glass portion, the protective coating layer having a modulus of elasticity value between −40° C. and +60° C. between 5 MPa and 600 MPa, preferably ... | 07/27/2010 |
| 7744950 | Process for producing a cable with a recyclable coating comprising a thermoplastic polymer and a dielectric liquid A process for producing a cable, such as, for medium-tension or high-tension power transmission or distribution, having at least one coating layer made of a thermoplastic polymer material. The process includes at least the following steps: (a) extruding a thermoplas... | 06/29/2010 |
| 7730747 | Method for vaporizing a liquid reactant in manufacturing a glass preform A method and device for vaporizing a liquid reactant. A vaporizing plate having a top surface defines a liquid flow channel, the channel being laterally delimited by edges having a height greater than a minimum thickness of liquid reactant required to generate vapor... | 06/08/2010 |
| 7713451 | Process for manufacturing a water-resistant telecommunication cable A process for manufacturing a water-resistant telecommunication cable. The cable has a solid and compact element having a water-soluble polymer material having vinyl alcohol/vinyl acetate copolymer having a hydrolysis degree of 60-95% and a polymerisation degree hig... | 05/11/2010 |
| 7706640 | Telecommunication optical cable for gas pipeline applications having built-in leakage detecting device A telecommunication fiber optic cable for gas pipeline application has a built-in leakage detecting device. The cable has an optical core including a number of telecommunication optical fibers, an outer jacket covering the optical core, and one or more gas leakage d... | 04/27/2010 |
| 7672555 | Cable with a coating layer made from a waste material A cable including at least one core having at least one transmissive element and at least one coating layer made from a coating material, wherein the coating material has at least a first polyethylene having a density not higher than 0.940 g/cm3, preferab... | 03/02/2010 |
| 7645408 | Process for manufacturing the elastomeric sleeve of a joint for electrical cables and manufacturing apparatus thereof A process for manufacturing an elastomeric sleeve of a joint for electrical cables. The sleeve has an electric field-control element, an electrical insulating element surrounding the electric field-control element, and at least a semiconductive element having two st... | 01/12/2010 |
| 7636505 | Microstructured optical fiber An optical fiber includes an optical fiber axis; a core extending along the axis, the core being made of a first, undoped material having a first refractive index; and a cladding coextensive to and surrounding the core. The cladding includes a background matrix made... | 12/22/2009 |
| 7634372 | Method and apparatus for monitoring cable stranding A method and a related apparatus for monitoring an external surface of stranded cables, such as submarine cables for optical telecommunications, and electrical energy cables, provide for telemetrically acquiring a profile of the cable external surface by means of a ... | 12/15/2009 |
| 7622669 | Method for shielding the magnetic field generated by an electrical power transmission line and electrical power transmission line so shielded A method for shielding the magnetic field generated by an electrical power transmission line and an electrical power transmission line so shielded. The electrical power transmission line has at least one electrical cable and at least one shielding element made of fe... | 11/24/2009 |
| 7601915 | Process for manufacturing a cable resistant to external chemical agents A process for manufacturing a cable includes the steps of conveying at least one conductor to an extruder apparatus; extruding an insulating coating layer radially external to the at least one conductor; longitudinally folding a metal tape around the extruded insula... | 10/13/2009 |
| 7587914 | Burner for manufacturing a glass optical fibre preform by vapour deposition A method for feeding a flow of gas to a burner for manufacturing an optical fiber preform. The burner has a plurality of coaxial tubes, each two adjacent coaxial tubes defining an annular channel between themselves; an annular gas distribution chamber at one extremi... | 09/15/2009 |
| 7536071 | Optical cable for communication An optical cable for communication includes at least one micromodule, wherein the micromodule is blocked with respect to the propagation of water. The at least one micromodule includes at least one optical fiber, a retaining element for housing the at least one opti... | 05/19/2009 |
| 7534055 | Low polarisation mode dispersion (PMD) optical fiber link, and method of making the same An optical fiber link has a plurality of optical fiber spans joined one to the other, the plurality of optical fiber spans including at least one first unidirectionally-spun optical fiber span and at least one second unidirectionally-spun optical fiber span having m... | 05/19/2009 |
