Patents by Inventor Gaia Dell'Anna
Gaia Dell'Anna has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11467360Abstract: 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: GrantFiled: November 29, 2017Date of Patent: October 11, 2022Assignee: PRYSMIAN S.P.A.Inventors: Nicola Spina, Gaia Dell'Anna
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Publication number: 20200341224Abstract: 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) comprising 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 comprises 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: ApplicationFiled: November 29, 2017Publication date: October 29, 2020Inventors: Nicola SPINA, Gaia DELL'ANNA
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Patent number: 7811494Abstract: 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.Type: GrantFiled: November 23, 2004Date of Patent: October 12, 2010Assignee: Prysmian Cavi E Sistemi Energia S.r.l.Inventors: Gaia Dell'Anna, Alberto Bareggi, Sergio Belli
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Patent number: 7807091Abstract: 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 extruded thermoplastic polymer forming a continuous phase incorporating a dielectric liquid, and are useful, for example, in the production of an electric cable for the transportation and/or distribution of electrical power. The method includes the steps of bringing the liquid to a predetermined pressure greater than the pressure of the molten mass; feeding the liquid into a plurality of storage tanks, and injecting the liquid into the molten mass at an injection pressure equal to the above-mentioned predetermined pressure by means of a plurality of injectors in respective fluid communication with the plurality of storage tanks.Type: GrantFiled: October 31, 2003Date of Patent: October 5, 2010Assignee: Prysmian Cavi e Sistemi Energia S.r.l.Inventors: Luca Balconi, Gaia Dell'Anna, Alberto Bareggi, Sergio Belli
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Patent number: 7744950Abstract: 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 thermoplastic material of at least one thermoplastic polymer and at least one dielectric liquid; (b) passing the thermoplastic material through at least one static mixer; and (c) depositing and shaping the thermoplastic material around a conductor belonging to the cable so as to obtain a layer of thermoplastic coating on the conductor.Type: GrantFiled: November 23, 2001Date of Patent: June 29, 2010Assignee: Prysmian Cavi E Sistemi Energia S.R.L.Inventors: Sergio Belli, Alberto Bareggi, Gaia Dell'Anna, Pier Luigi Folcini, Cristiana Scelza
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Patent number: 7514633Abstract: A cable for use in a predetermined voltage class includes at least one conductor; at least one extruded insulating layer surrounding the conductor, the insulating layer being made from a non-crosslinked insulating material having at least one thermoplastic polymer and at least one dielectric liquid, the insulating layer having a thickness such as to provide a voltage gradient on the outer surface of the cable insulating layer not smaller than 1.0 kV/mm; and a protective element around the extruded insulating layer having a thickness and mechanical properties selected to provide a predetermined impact resistance capability, the protective element having at least one expanded polymeric layer, the thickness being sufficient to prevent detectable insulating layer damage upon impact of at least 25 J energy.Type: GrantFiled: December 3, 2003Date of Patent: April 7, 2009Assignee: Prysmian Cavi e Sistemi Energia S.R.L.Inventors: Gaia Dell'Anna, Cristiana Scelza, Sergio Belli, Alberto Bareggi
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Patent number: 7459635Abstract: A process for manufacturing an electric cable. In particular, the process includes the steps of: a) feeding a conductor at a predetermined feeding speed; b) extruding a thermoplastic insulating layer in a position radially external to the conductor; c) cooling the extruded insulating layer; and d) forming a circumferentially closed metal shield around the extruded insulating layer. The process may be carried out continuously, i.e., the time occurring between the end of the cooling step and the beginning of the shield forming step is inversely proportional to the feeding speed of the conductor.Type: GrantFiled: July 25, 2003Date of Patent: December 2, 2008Assignee: Prysmian Cavi E Sistemi Energia S.R.L.Inventors: Sergio Belli, Alberto Bareggi, Gaia Dell'Anna, Cristiana Scelza, Fabrizio Donazzi
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Publication number: 20080128939Abstract: 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.Type: ApplicationFiled: November 23, 2004Publication date: June 5, 2008Inventors: Gaia Dell' Anna, Alberto Bareggi, Sergio Belli
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Publication number: 20070272426Abstract: A cable for use in a predetermined voltage class includes at least one conductor; at least one extruded insulating layer surrounding the conductor, the insulating layer being made from a non-crosslinked insulating material having at least one thermoplastic polymer and at least one dielectric liquid, the insulating layer having a thickness such as to provide a voltage gradient on the outer surface of the cable insulating layer not smaller than 1.0 kV/mm; and a protective element around the extruded insulating layer having a thickness and mechanical properties selected to provide a predetermined impact resistance capability, the protective element having at least one expanded polymeric layer, the thickness being sufficient to prevent detectable insulating layer damage upon impact of at least 25 J energy.Type: ApplicationFiled: December 3, 2003Publication date: November 29, 2007Inventors: Gaia Dell'Anna, Cristiana Scelza, Sergio Belli, Alberto Bareggi
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Publication number: 20070248748Abstract: 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 extruded thermoplastic polymer forming a continuous phase incorporating a dielectric liquid, and are useful, for example, in the production of an electric cable for the transportation and/or distribution of electrical power. The method includes the steps of bringing the liquid to a predetermined pressure greater than the pressure of the molten mass; feeding the liquid into a plurality of storage tanks, and injecting the liquid into the molten mass at an injection pressure equal to the above-mentioned predetermined pressure by means of a plurality of injectors in respective fluid communication with the plurality of storage tanks.Type: ApplicationFiled: October 31, 2003Publication date: October 25, 2007Inventors: Luca Balconi, Gaia Dell'Anna, Alberto Bareggi, Sergio Belli
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Publication number: 20070181333Abstract: A process for manufacturing an electric cable. In particular, the process includes the steps of: a) feeding a conductor at a predetermined feeding speed; b) extruding a thermoplastic insulating layer in a position radially external to the conductor; c) cooling the extruded insulating layer; and d) forming a circumferentially closed metal shield around the extruded insulating layer. The process according to the invention is carried out continuously, i.e., the time occurring between the end of the cooling step and the beginning of the shield forming step is inversely proportional to the feeding speed of the conductor.Type: ApplicationFiled: July 25, 2003Publication date: August 9, 2007Applicant: PIRELLI & C. S.P.A.Inventors: Sergio Belli, Alberto Bareggi, Gaia Dell'Anna, Cristiana Scelza, Fabrizio Donazzi
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Patent number: 7204896Abstract: An electrical cable includes a conductor, an outer sheath, and a self-repairing material layer between the conductor and outer sheath. The self-repairing material layer is distributed around the conductor in a discontinuous manner. An anchor portion is formed between the conductor and the outer sheath.Type: GrantFiled: November 8, 2002Date of Patent: April 17, 2007Assignee: Pirelli Cavi e Sistemi S.p.A.Inventors: Andrew L. Maunder, Alberto Bareggi, Luca Balconi, Gaia Dell′Anna, Giovanni Pozzati, Sergio Belli
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Patent number: 7196270Abstract: A cable having at least one electrical conductor and at least one extruded covering layer based on a thermoplastic polymer material in admixture with a dielectric liquid. The thermoplastic polymer material is selected from: (a) at least one propylene homopolymer or at least one copolymer of propylene with at least one olefin comonomer; (b) a mechanical mixture of at least one propylene homopolymer or copolymer (a) and (c) at least one elastomeric copolymer or ethylene with at least one aliphatic ?-olefin, and optionally a polyene.Type: GrantFiled: January 15, 2004Date of Patent: March 27, 2007Assignee: Prysmian Cavi E Sistemi Energia S.r.L.Inventors: Gabriele Perego, Cristiana Scelza, Gaia Dell'Anna, Sergio Belli
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Publication number: 20060124341Abstract: A cable having at least one electrical conductor and at least one extruded covering layer based on a thermoplastic polymer material in admixture with a dielectric liquid. The thermoplastic polymer material is selected from: (a) at least one propylene homopolymer or at least one copolymer of propylene with at least one olefin comonomer; (b) a mechanical mixture of at least one propylene homopolymer or copolymer (a) and (c) at least one elastomeric copolymer or ethylene with at least one aliphatic ?-olefin, and optionally a polyene. The cable of the invention possesses good mechanical and electrical properties, including high dielectric strength, in particular enabling it to be used at high operating temperature.Type: ApplicationFiled: January 15, 2004Publication date: June 15, 2006Inventors: Gabriele Perego, Cristiana Scelza, Gaia Dell'Anna, Sergio Belli
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Patent number: 6861143Abstract: A cable includes at least one conductor and at least one covering layer. The at least one covering layer includes a thermoplastic polymer material. The polymer material includes a propylene homopolymer or a copolymer of propylene with an olefin comonomer. The olefin comonomer is ethylene, one or more ?-olefins other than propylene, or ethylene and one or more ?-olefins other than propylene. The homopolymer or copolymer has a melting point between 140° C. and 165° C., a melting enthalpy between 30 J/g and 80 J/g, a boiling diethyl ether soluble fraction less than or equal to 12 wt % and melting enthalpy less than or equal to 4 J/g, a boiling n-heptane soluble fraction between 15 wt % and 60 wt % and melting enthalpy between 10 J/g and 40 J/g, and a boiling n-heptane insoluble fraction between 40 wt % and 8 wt % and melting enthalpy greater than or equal to 45 J/g.Type: GrantFiled: May 16, 2002Date of Patent: March 1, 2005Assignee: Pirelli Cavi e Sistemi S.p.A.Inventors: Luca Castellani, Cristiana Scelza, Gaia Dell'Anna, Enrico Albizzati
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Patent number: 6844526Abstract: A method and apparatus for preheating the conductor elements of cables with extruded insulator essentially by forced thermal convection. Particularly for conductors with metal tape reinforcement, such as for example Milliken conductors, where it has been found that the traditional magnetic-induction heating is not satisfactory since the tape reinforcement shields the elements of conductors.Type: GrantFiled: August 2, 2001Date of Patent: January 18, 2005Assignee: Pirelli S.p.A.Inventors: Paolo Veggetti, Gaia Dell'Anna, Giovanni Pozzati, Marcello Del Brenna, Angelo Sala
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Patent number: 6824870Abstract: A cable with recyclable covering, particularly for transporting or distributing medium or high voltage energy, in which at least one covering layer is based on thermoplastic polymer material comprising a propylene homopolymer or a copolymer of propylene with ethylene or an &agr;-olefin other than propylene in mixture with a dielectric liquid. The cable of the invention possesses superior mechanical and electrical properties, including high dielectric strength, in particular enabling it to be used at high operating temperature.Type: GrantFiled: August 19, 2003Date of Patent: November 30, 2004Assignee: Pirelli S.p.A.Inventors: Luca Castellani, Gaia Dell'Anna, Cristiana Scelza, Enrico Albizzati
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Publication number: 20040091631Abstract: 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 thermoplastic material of at least one thermoplastic polymer and at least one dielectric liquid; (b) passing the thermoplastic material through at least one static mixer; and (c) depositing and shaping the thermoplastic material around a conductor belonging to the cable so as to obtain a layer of thermoplastic coating on the conductor.Type: ApplicationFiled: December 15, 2003Publication date: May 13, 2004Inventors: Sergio Belli, Alberto Bareggi, Gaia Dell'Anna, Pier Luigi Folcini, Cristiana Scelza
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Publication number: 20040042771Abstract: The method and the apparatus of the invention use preheating essentially by forced thermal convection. Particularly for conductors with metal tape reinforcement, such as for example Milliken conductors, where it has been found that the traditional magnetic-induction heating is not satisfactory since the tape reinforcement shields the conductors elements.Type: ApplicationFiled: August 4, 2003Publication date: March 4, 2004Inventors: Paolo Veggetti, Gaia Dell'Anna, Giovanni Pozzati, Marcello Del Brenna, Angelo Sala
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Publication number: 20040038030Abstract: The invention describes a cable with recyclable covering, particularly for transporting or distributing medium or high voltage energy, in which at least one covering layer is based on thermoplastic polymer material comprising a propylene homopolymer or a copolymer of propylene with ethylene or an ∝-olefin other than propylene in mixture with a dielectric liquid. The cable of the invention possesses superior mechanical and electrical properties, including high dielectric strength, in particular enabling it to be used at high operating temperature.Type: ApplicationFiled: August 19, 2003Publication date: February 26, 2004Inventors: Luca Castellani, Gaia Dell'Anna, Cristiana Scelza, Enrico Albizzati