Patents by Inventor Paolo Veggetti

Paolo Veggetti 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).

  • Patent number: 8916776
    Abstract: An electric power cable contains a core and a jacket forming the exterior of the cable. The jacket is formed by extruding a first layer and a second layer over a plurality of concentric neutral elements, substantially encapsulating these elements. At least the first layer is an expanded polymeric material, by having its density reduced through the use of a foaming agent during extrusion. The second layer, which may also be expanded, is extruded around the first layer. The expanded polymeric material makes stripping the jacket easier, minimizes indentations in the cable's insulation layers, lightens the cable, and increases the cable's flexibility.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: December 23, 2014
    Assignee: Prysmian Cavi E Sistemi Energia S.R.L.
    Inventors: Paul Cinquemani, Andrew Maunder, Paolo Veggetti, Alberto Bareggi, Sergio Belli
  • Patent number: 8772638
    Abstract: Process for manufacturing a cable comprising the following steps:(a) conveying at least one conductor to an extruder apparatus;(b) extruding an insulating coating layer radially external to said at least one conductor; (c) longitudinally folding a metal tape around said extruded insulating coating layer, said metal tape bearing at least one adhesive coating layer in a radially external position; (e) extruding at least one continuous coating layer comprising at least one polyamide or a copolymer thereof around and in contact with said folded metal tape; wherein the step (e) is carried out at a draw down ratio (DDR) not higher than 2.5, preferably of from 1.2 to 2.0.
    Type: Grant
    Filed: August 17, 2009
    Date of Patent: July 8, 2014
    Assignee: Prysmian Cavi E Sistemi Energia S.R.L.
    Inventors: Alberto Lumachi, Paolo Veggetti, Luca Giorgio De Rai, Franck O'Neil, Alberto Bareggi, Marco Frigerio, Sergio Belli
  • Patent number: 8765035
    Abstract: A process for manufacturing a self-extinguishing cable including at least one transmissive element and at least one flame-retardant coating in a position radially external to the at least one transmissive element, wherein the at least one coating includes an expanded flame-retardant polymeric material having (a) at least one expandable polymer; (b) at least one expanding agent; (c) at least one flame-retardant inorganic filler, in an amount of 100 parts by weight of 250 parts by weight with respect to 100 parts by weight of the at least one expandable polymer. The process includes the following steps: (i) feeding the flame-retardant polymeric material to an extruding apparatus, therein melting and mixing it; (ii) passing the flame-retardant polymeric material obtained in step (i) through at least one static mixer; and (iii) depositing by extrusion the flame-retardant polymeric material obtained in step (ii) onto the at least one transmissive element conveyed to the extruding apparatus.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: July 1, 2014
    Assignee: Prysmian Cavi E Sistemi Energia S.R.L.
    Inventors: Gianbattista Grasselli, Alberto Bareggi, Cristiana Scelza, Marco Frigerio, Paolo Veggetti, Sergio Belli
  • Patent number: 7816607
    Abstract: 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 process includes the steps of: a) assembling the at least one pair of cores so as to form an assembled element having a plurality of interstitial zones between the cores, and b) depositing by co-extrusion an expandable polymeric material in a position which is radially external to the cores so as to fill the interstitial zone and to form a filling layer of substantially circular transverse cross section, and at least one containment layer of polymeric material in a position radially external to the filling layer. The multipolar cable obtained from the process.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: October 19, 2010
    Assignee: Prysmian Cavi E Sistemi Energia S.R.L.
    Inventors: Sergio Belli, Alberto Bareggi, Paolo Veggetti, Luca Balconi, Paolo Bossi
  • Publication number: 20100000759
    Abstract: Process for manufacturing a cable comprising the following steps:(a) conveying at least one conductor to an extruder apparatus;(b) extruding an insulating coating layer radially external to said at least one conductor; (c) longitudinally folding a metal tape around said extruded insulating coating layer, said metal tape bearing at least one adhesive coating layer in a radially external position; (e) extruding at least one continuous coating layer comprising at least one polyamide or a copolymer thereof around and in contact with said folded metal tape; wherein the step (e) is carried out at a draw down ratio (DDR) not higher than 2.5, preferably of from 1.2 to 2.0.
    Type: Application
    Filed: August 17, 2009
    Publication date: January 7, 2010
    Inventors: Alberto LUMACHI, Paolo VEGGETTI, Luca Giorgio DE RAI, Franck O'NEIL, Alberto BAREGGI, Marco FRIGERIO, Sergio BELLI
  • Patent number: 7642462
    Abstract: A multipolar cable for transmitting energy and/or signals, as well as an extrusion method and apparatus for the production thereof, is described. The multipolar cable has at least three transmissive elements and a sheath in which at least three longitudinal housings being intended to house respectively the at least three transmissive elements according to a predetermined configuration and being formed within respective substantially lobe-shaped longitudinal portions of the sheath. The multipolar cable allows the connection of the transmissive elements to one or more consumption points by means of at least one connector provided with at least three perforating elements.
    Type: Grant
    Filed: December 30, 2003
    Date of Patent: January 5, 2010
    Assignee: Prysmian Cavi e Sistemi Energia
    Inventors: Paolo Veggetti, Sergio Belli, Luca Balconi, Luca De Rai, Angelo Riella, Vincenzo Crisci
  • Patent number: 7601915
    Abstract: 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 insulating coating layer, the metal tape bearing at least one adhesive coating layer in a radially external position; and extruding at least one continuous coating layer of at least one polyamide or a copolymer thereof around and in contact with the folded metal tape. The step of extruding the at least continuous coating layer is carried out at a draw down ratio not higher than 2.5, preferably, 1.2 to 2.0.
    Type: Grant
    Filed: April 27, 2004
    Date of Patent: October 13, 2009
    Assignee: Prysmian Cavi E Sistemi Energia S.R.L.
    Inventors: Alberto Lumachi, Paolo Veggetti, Luca Giorgio De Rai, Franck O'Neil, Alberto Bareggi, Marco Frigerio, Sergio Belli
  • Publication number: 20090200059
    Abstract: An electric power cable contains a core and a jacket forming the exterior of the cable. The jacket is formed by extruding a first layer and a second layer over a plurality of concentric neutral elements, substantially encapsulating these elements. At least the first layer is an expanded polymeric material, by having its density reduced through the use of a foaming agent during extrusion. The second layer, which may also be expanded, is extruded around the first layer. The expanded polymeric material makes stripping the jacket easier, minimizes indentations in the cable's insulation layers, lightens the cable, and increases the cable's flexibility.
    Type: Application
    Filed: July 15, 2005
    Publication date: August 13, 2009
    Inventors: Paul Cinquemani, Andrew Maunder, Paolo Veggetti, Alberto Bareggi, Sergio Belli
  • Publication number: 20090071692
    Abstract: The present invention relates to a manufacturing process of a multipolar cable comprising at least one pair of cores, each core comprising at least one conductive element and at least one layer of electrical insulation in a position which is radially external to said at least one conductive element. This process comprises the steps of: a) assembling said at least one pair of cores so as to form an assembled element having a plurality of interstitial zones between said cores, and b) depositing by co-extrusion an expandable polymeric material in a position which is radially external to said cores so as to fill said interstitial zone and to form a filling layer of substantially zone and to form a filling layer of substantially circular transverse cross section, and at least one containment layer of polymeric, and at least one containment layer of polymeric material in a position radially external to said filling layer. The present invention also relates to a multipolar cable obtained from said process.
    Type: Application
    Filed: November 11, 2008
    Publication date: March 19, 2009
    Inventors: Sergio Belli, Alberto Bareggi, Paolo Veggetti, Luca Balconi, Paolo Bossi
  • Patent number: 7469470
    Abstract: A cable comprises at least two cores stranded together, an expanded inner jacket layer, a substantially circular metallic armor partially contacting the inner jacket to form unfilled interstices outside the inner jacket, and a polymeric outer jacket. The expanded inner jacket substantially takes the shape of the periphery of the stranded cores, providing a non-circular cross section for the expanded inner jacket. A method of producing a cable comprises providing at least two cores, expanding a polymeric material, extruding the expanded polymeric material around the cores, and allowing the expanded polymeric material to collapse onto the cores. A substantially circular metallic armor is applied, resulting in a plurality of unfilled voids between the inner jacket and the metallic armor. An outer jacket is extruded on the metallic armor.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: December 30, 2008
    Assignee: Prysmian Cavi e Sistemi Energia S.R.L.
    Inventors: Daniel Cusson, Paul Cinquemani, Paolo Veggetti, Marco Frigerio, Alberto Bareggi
  • Patent number: 7465880
    Abstract: 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 process includes the steps of: a) assembling said at least one pair of cores so as to form an assembled element having a plurality of interstitial zones between the cores, and b) depositing by co-extrusion an expandable polymeric material in a position which is radially external to the cores so as to fill the interstitial zone and to form a filling layer of substantially circular transverse cross section, and at least one containment layer of polymeric material in a position radially external to the filling layer. The multipolar cable obtained from the process.
    Type: Grant
    Filed: November 22, 2001
    Date of Patent: December 16, 2008
    Assignee: Prysmian Cavi E Sistemi Energia S.r.l.
    Inventors: Sergio Belli, Alberto Bareggi, Paolo Veggetti, Luca Balconi, Paolo Bossi
  • Publication number: 20080190643
    Abstract: 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 insulating coating layer, the metal tape bearing at least one adhesive coating layer in a radially external position; and extruding at least one continuous coating layer of at least one polyamide or a copolymer thereof around and in contact with the folded metal tape. The step of extruding the at least continuous coating layer is carried out at a draw down ratio not higher than 2.5, preferably, 1.2 to 2.0.
    Type: Application
    Filed: April 27, 2004
    Publication date: August 14, 2008
    Applicant: PERELLI & C.S.P.A.
    Inventors: Alberto Lumachi, Paolo Veggetti, Luca Giorgio De Rai, Franck O'Neil, Alberto Bareggi, Marco Frigerio, Sergio Belli
  • Patent number: 7377763
    Abstract: An extrusion method and apparatus (11) for producing a cable (1, 101) including at least one core (7) comprising at least one transmissive element (2, 40), and at least one pair of coating layers (8, 9) arranged at a radially outer position with the respect of the core (7) are described. The method of the invention includes the simultaneous steps of depositing by co-extrusion at least one coating layer (8) of polymeric material and one coating layer (9) of expanded polymeric material and of maintaining a residual pressure not greater than the external pressure in a substantially annular interspace (21) defined between the coating layers. With respect to the methods of the prior art, the present invention allows to avoid the formation of bubbles at the interface between said at least one coating layer (8) of polymeric material and the coating layer (9) of expanded polymeric material, attaining an optimal adhesion between said layers (8, 9).
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: May 27, 2008
    Assignee: Prysmian Cavi E Sistemi Energia S.R.L.
    Inventors: Luca Balconi, Alberto Bareggi, Sergio Belli, Paolo Veggetti
  • Publication number: 20070262483
    Abstract: A process for manufacturing a self-extinguishing cable including at least one transmissive element and at least one flame-retardant coating in a position radially external to the at least one transmissive element, wherein the at least one coating includes an expanded flame-retardant polymeric material having (a) at least one expandable polymer; (b) at least one expanding agent; (c) at least one flame-retardant inorganic filler, in an amount of 100 parts by weight of 250 parts by weight with respect to 100 parts by weight of the at least one expandable polymer.
    Type: Application
    Filed: December 24, 2003
    Publication date: November 15, 2007
    Inventors: Gianbattista Grasselli, Alberto Bareggi, Cristiana Scelza, Marco Frigerio, Paolo Veggetti, Sergio Belli
  • Publication number: 20070251716
    Abstract: A multipolar cable for transmitting energy and/or signals, as well as an extrusion method and apparatus for the production thereof, is described. The multipolar cable has at least three transmissive elements and a sheath in which at least three longitudinal housings being intended to house respectively the at least three transmissive elements according to a predetermined configuration and being formed within respective substantially lobe-shaped longitudinal portions of the sheath. The multipolar cable allows the connection of the transmissive elements to one or more consumption points by means of at least one connector provided with at least three perforating elements.
    Type: Application
    Filed: December 30, 2003
    Publication date: November 1, 2007
    Inventors: Paolo Veggetti, Sergio Belli, Luca Balconi, Luca De Rai, Angelo Riella, Vincenzo Crisci
  • Publication number: 20070056762
    Abstract: A cable comprises at least two cores stranded together, an expanded inner jacket layer, a substantially circular metallic armor partially contacting the inner jacket to form unfilled interstices outside the inner jacket, and a polymeric outer jacket. The expanded inner jacket substantially takes the shape of the periphery of the stranded cores, providing a non-circular cross section for the expanded inner jacket. A method of producing a cable comprises providing at least two cores, expanding a polymeric material, extruding the expanded polymeric material around the cores, and allowing the expanded polymeric material to collapse onto the cores. A substantially circular metallic armor is applied, resulting in a plurality of unfilled voids between the inner jacket and the metallic armor. An outer jacket is extruded on the metallic armor.
    Type: Application
    Filed: November 16, 2006
    Publication date: March 15, 2007
    Inventors: Daniel Cusson, Paul Cinquemani, Paolo Veggetti, Frigerio Marco, Alberto Bareggi
  • Patent number: 7175411
    Abstract: The present invention concerns a process for producting cables, in particular cables for the distribution of electrical energy or cables for telecommunications, more particularly, cables having at least one covering layer comprising a composition of high viscosity. More particularly, the present invention concerns cables having at least one covering layer comprising a polymeric composition comprising a mineral filler capable of imparting one or more specific properties to the aforesaid cables. In accordance with the present invention, said production process comprises the stages of: conveying at least one conducting element inside of an extruder; feeding the polymeric material, optionally premixed with other components of said composition, into said extruder, filtering the material transferred and plasticized by the screw of said extruder; depositing said material onto said at least one conducting element, the filtration operation being performed with a filtration efficiency greater than 0.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: February 13, 2007
    Assignee: Prysmian Cavi e Sistemi Energia S.R.L.
    Inventors: Sergio Belli, Angelo Giuseppe Locatelli, Giovanni Pozzati, Paolo Veggetti
  • Patent number: 7166802
    Abstract: A cable comprises at least two cores stranded together, an expanded inner jacket layer, a substantially circular metallic armor partially contacting the inner jacket to form unfilled interstices outside the inner jacket, and a polymeric outer jacket. The expanded inner jacket substantially takes the shape of the periphery of the stranded cores, providing a non-circular cross section for the expanded inner jacket. A method of producing a cable comprises providing at least two cores, expanding a polymeric material, extruding the expanded polymeric material around the cores, and allowing the expanded polymeric material to collapse onto the cores. A substantially circular metallic armor is applied, resulting in a plurality of unfilled voids between the inner jacket and the metallic armor. An outer jacket is extruded on the metallic armor.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: January 23, 2007
    Assignee: Prysmian Cavi E Sistemi Energia S.r.L.
    Inventors: Daniel Cusson, Paul Cinquemani, Paolo Veggetti, Marco Frigerio, Alberto Bareggi
  • Patent number: 7087842
    Abstract: Electric cable (20), in particular for power transmission or distribution at medium or high voltage, comprising a metallic screen (5) and a water swellable layer (21) capable of forming a barrier to the water penetration provided in a position radially external to said metallic screen (5). Said water swellable layer (21) is made of an expanded polymeric material in which a water swellable material preferably in the form of powder, is embedded.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: August 8, 2006
    Assignee: Pirelli Cavi e Sistemi S.p.A.
    Inventors: Sergio Belli, Alberto Bareggi, Paolo Veggetti, Luca Castellani, Giovanni Pozzati, Luca Balconi
  • Publication number: 20060137894
    Abstract: A cable comprises at least two cores stranded together, an expanded inner jacket layer, a substantially circular metallic armor partially contacting the inner jacket to form unfilled interstices outside the inner jacket, and a polymeric outer jacket. The expanded inner jacket substantially takes the shape of the periphery of the stranded cores, providing a non-circular cross section for the expanded inner jacket. A method of producing a cable comprises providing at least two cores, expanding a polymeric material, extruding the expanded polymeric material around the cores, and allowing the expanded polymeric material to collapse onto the cores. A substantially circular metallic armor is applied, resulting in a plurality of unfilled voids between the inner jacket and the metallic armor. An outer jacket is extruded on the metallic armor.
    Type: Application
    Filed: December 27, 2004
    Publication date: June 29, 2006
    Inventors: Daniel Cusson, Paul Cinquemani, Paolo Veggetti, Marco Frigerio, Alberto Bareggi