Patents by Inventor Mauro Maritano

Mauro Maritano 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: 9658418
    Abstract: An optical cable has a cable core including at least one tube loosely accommodating optical fibers, the at least one tube being accommodated within a jacket embedding at least two strength members, the cable core and the jacket comprising combustible material. A ratio of core combustible material/jacket combustible material is lower than 60 vol %. The jacket is made of a composition having hardness of at least 60 Shore D and a LOI higher than 35%.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: May 23, 2017
    Assignee: PRYSMIAN S.P.A.
    Inventors: Davide Ceschiat, Mauro Maritano
  • Patent number: 9595367
    Abstract: A high voltage direct current cable includes at least one electrical conductor, at least one semiconducting layer, at least one stratified insulation made from windings of at least one paper-polypropylene laminate, the stratified insulation being impregnated with at least one electrically insulating fluid having a kinematic viscosity of at least 1,000 cSt at 60EC, wherein the laminate includes at least one paper layer having an air impermeability of at least 100,000 Gurley sec?1. Such a high air impermeability of the paper layer(s) remarkably reduces the swelling of the polypropylene layer(s) during impregnation with a high viscosity insulating fluid, thus preventing delamination, up to the end of the impregnation process for the whole stratified insulation.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: March 14, 2017
    Assignee: PRYSMIAN S.P.A.
    Inventors: Mauro Maritano, Gianni Miramonti
  • Patent number: 9279952
    Abstract: 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 transmission elements housed within the retaining element and a water swellable yarn housed within the retaining element. The water swellable yarn is selected according to the following equation: V w V TF = k V t + R ( I ) in which Vw is the volume of the water swellable yarn after swelling upon contact with water; VTF is the total free volume in the retaining element; k is a constant?180; R is a constant?1.4; and Vt is the free volume per each transmission element. Advantageously, the optical cable is water-blocked and the water swellable yarn does not induce microbending effects on the transmission elements.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: March 8, 2016
    Assignee: PRYSMIAN CAVI E SISTEMI ENERGIA S.R.L.
    Inventors: Alessandro Ginocchio, Enrico Consonni, Paolo Arturo Presa, Massimo Pizzorno, Mauro Maritano
  • Publication number: 20150226928
    Abstract: An optical cable has a cable core including at least one tube loosely accommodating optical fibers, the at least one tube being accommodated within a jacket embedding at least two strength members, the cable core and the jacket comprising combustible material. A ratio of core combustible material/jacket combustible material is lower than 60 vol %. The jacket is made of a composition having hardness of at least 60 Shore D and a LOI higher than 35%.
    Type: Application
    Filed: August 8, 2012
    Publication date: August 13, 2015
    Applicant: Prysmian S.p.A.
    Inventors: Davide Ceschiat, Mauro Maritano
  • Publication number: 20120285725
    Abstract: A high voltage direct current cable includes at least one electrical conductor, at least one semiconducting layer, at least one stratified insulation made from windings of at least one paper-polypropylene laminate, the stratified insulation being impregnated with at least one electrically insulating fluid having a kinematic viscosity of at least 1,000 cSt at 60EC, wherein the laminate includes at least one paper layer having an air impermeability of at least 100,000 Gurley see. Such a high air impermeability of the paper layer(s) remarkably reduces the swelling of the polypropylene layer(s) during impregnation with a high viscosity insulating fluid, thus preventing delamination, up to the end of the impregnation process for the whole stratified insulation.
    Type: Application
    Filed: December 16, 2009
    Publication date: November 15, 2012
    Inventors: Mauro Maritano, Gianni Miramonti
  • Publication number: 20110089588
    Abstract: 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 transmission elements housed within the retaining element and a water swellable yarn housed within the retaining element. The water swellable yarn is selected according to the following equation: V w V TF = k V t + R ( I ) in which Vw is the volume of the water swellable yarn after swelling upon contact with water; VTF is the total free volume in the retaining element; k is a constant?180; R is a constant?1.4; and Vt is the free volume per each transmission element. Advantageously, the optical cable is water-blocked and the water swellable yarn does not induce microbending effects on the transmission elements.
    Type: Application
    Filed: November 16, 2010
    Publication date: April 21, 2011
    Applicant: Prysmian Cavi e Sistemi Energia S.r.L.
    Inventors: Alessandro GINOCCHIO, Enrico Consonni, Paolo Arturo Presa, Massimo Pizzorno, Mauro Maritano
  • Patent number: 7865047
    Abstract: 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 plasticizer; a hydrolysis stabilizer compound having a chelant group having two hydrogen atoms bonded to two respective heteroatoms selected from nitrogen, oxygen and sulfur. The two hydrogen atoms have a distance between each other of 4.2×10?10 m to 5.8×10?10 m. The stabilizer compound is present in an amount of at least 0.75 mmoles per 100 g of copolymer. The elongated element is in particular a buffer tube housing a plurality of optical fibers. The presence of the stabilizer reduces the increase of the hydrolysis degree of the copolymer upon aging, thus maintaining the desired water blocking properties of the copolymer.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: January 4, 2011
    Assignee: Prysmian Cavi e Sistemi Energia S.R.L.
    Inventors: Mauro Maritano, Raffaella Donetti, Antonio Campana, Massimiliano Pavan, Raimondo Scordamaglia
  • Patent number: 7860361
    Abstract: 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 transmission elements housed within the retaining element and a water swellable yarn housed within the retaining element. The water swellable yarn is selected according to the following equation: V w V TF = k V t + R ( 1 ) in which Vw is the volume of the water swellable yarn after swelling upon contact with water; VTF is the total free volume in the retaining element; k is a constant ?180; R is a constant ?1.4; and Vt is the free volume per each transmission element. Advantageously, the optical cable is water-blocked and the water swellable yarn does not induce microbending effects on the transmission elements.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: December 28, 2010
    Assignee: Prysmian Cavi e Sistemi Energia S.r.L.
    Inventors: Alessandro Ginocchio, Enrico Consonni, Paolo Arturo Presa, Massimo Pizzorno, Mauro Maritano
  • Patent number: 7801404
    Abstract: 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 inorganic filler; and (c) at least one olefin polymer including at least one functional group. The at least one olefin polymer including at least one functional group (c) is present in the polymeric composition in an amount of about 3 parts by weight to about 10 parts by weight, preferably about 5 parts by weight to about 8 parts by weight, with respect to 100 parts by weight of the olefin polymer (a).
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: September 21, 2010
    Assignee: Prysmian Cavi E Sistemi Energia S.R.L.
    Inventors: Massimiliano Pavan, Giovanni Brandi, Mauro Maritano
  • Patent number: 7713451
    Abstract: 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 higher than 1,800 and at least one solid low-melting and one solid high melting plasticizers. The process produces continuously the water-soluble polymer material by separately feeding, in sequence, a multi-screw extruder, in the flow direction, with the copolymer and the high melting plasticizer melting and mixing them while transporting them through the extruder, and with the low melting plasticizer, melting and mixing them with the copolymer and the high melting plasticizer, subsequently homogenizing the copolymer and the plasticizers and finally discharging the melt, at a temperature lower than or equal to 205° C. A process for extruding the above PVA based water-soluble polymer material.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: May 11, 2010
    Assignee: Prysmian Cavi E Sistemi Energia S.R.L.
    Inventors: Massimiliano Pavan, Stefano Testi, Raffaella Donetti, Cristiano Puppi, Mauro Maritano
  • Patent number: 7706640
    Abstract: 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 detector optical fibers. One or more gas leakage detector optical fibers are enclosed within the outer jacket. Preferably, the cable has a linearly extending rod reinforcing system having strength rods that force the cable to bend in a preferential bending place. Preferably, the leakage detector optical fibers are located at, or close to, a plane that is substantially orthogonal to the preferential bending plane and passing through the cable neutral axis.
    Type: Grant
    Filed: October 23, 2003
    Date of Patent: April 27, 2010
    Assignee: Prysmian Cavi E Sistemi Energia S.R.L.
    Inventors: Massimo Pizzorno, Alessandro Ginocchio, Mauro Maritano
  • Patent number: 7466887
    Abstract: An optical fiber cable having a polymeric component, in particular a buffer tube, suitable for both terrestrial and undersea uses. The polymeric material forming the component has a copolymer of propylene with a C4-C8 ?-olefin and preferably a nucleating agent disbursed therein. The obtained component shows improved dimensional stability, which guarantees its non-deformability, and high transparency and can be extruded at lower extrusion temperatures.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: December 16, 2008
    Assignee: Prysmian Cavi E Sistemi Energia S.R.L.
    Inventors: Luca Castellani, Mauro Maritano, Giovanni Brandi
  • Publication number: 20080304798
    Abstract: 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 inorganic filler; and (c) at least one olefin polymer including at least one functional group. The at least one olefin polymer including at least one functional group (c) is present in the polymeric composition in an amount of about 3 parts by weight to about 10 parts by weight, preferably about 5 parts by weight to about 8 parts by weight, with respect to 100 parts by weight of the olefin polymer (a).
    Type: Application
    Filed: August 28, 2003
    Publication date: December 11, 2008
    Applicant: PIRELLI & C.S.P.A.
    Inventors: Massimiliano Pavan, Giovanni Brandi, Mauro Maritano
  • Publication number: 20080267569
    Abstract: 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 transmission elements housed within the retaining element and a water swellable yarn housed within the retaining element. The water swellable yarn is selected according to the following equation: V w V TF = k V t + R ( 1 ) in which VW is the volume of the water swellable yarn after swelling upon contact with water; VTF is the total free volume in the retaining element; k is a constant ?180; R is a constant ?1.4; and Vt is the free volume per each transmission element. Advantageously, the optical cable is water-blocked and the water swellable yarn does not induce microbending effects on the transmission elements.
    Type: Application
    Filed: November 5, 2004
    Publication date: October 30, 2008
    Inventors: Alessandro Ginocchio, Enrico Consonni, paolo Arturo Presa, Massimo Pizzorno, Mauro Maritano
  • Patent number: 7386208
    Abstract: Optical cable, in particular for submarine connections. A water blocking resin filling composition of reduced hardness is disposed into interstices. Preferably, the resin composition is a polyurethane resin having less than about 35% by weight of a polyol/polyisocyanate mixture and about 60% to about 90% by weight of a mineral oil. The polyurethane resin preferably has less than about 12% by weight of a coupling agent. The cable has an optical core surrounded by a plurality of metallic wires and an outer polymeric sheath. The optical core is of the “tight” type with a plurality of optical fibers embedded into a polymeric matrix disposed around a strength member.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: June 10, 2008
    Assignee: Prysmian Cavi e Sistemi Energia S.R.L.
    Inventors: Claudio Bosisio, Massimillano Pavan, Mauro Maritano
  • Publication number: 20070246848
    Abstract: 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 higher than 1,800 and at least one solid low-melting and one solid high melting plasticizers. The process produces continuously the water-soluble polymer material by separately feeding, in sequence, a multi-screw extruder, in the flow direction, with the copolymer and the high melting plasticizer melting and mixing them while transporting them through the extruder, and with the low melting plasticizer, melting and mixing them with the copolymer and the high melting plasticizer, subsequently homogenizing the copolymer and the plasticizers and finally discharging the melt, at a temperature lower than or equal to 205° C. A process for extruding the above PVA based water-soluble polymer material.
    Type: Application
    Filed: October 29, 2003
    Publication date: October 25, 2007
    Inventors: Massimiliano Pavan, Stefano Testi, Raffaella Donetti, Cristiano Puppi, Mauro Maritano
  • Publication number: 20070081773
    Abstract: 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 detector optical fibers. One or more gas leakage detector optical fibers are enclosed within the outer jacket. Preferably, the cable has a linearly extending rod reinforcing system having strength rods that force the cable to bend in a preferential bending place. Preferably, the leakage detector optical fibers are located at, or close to, a plane that is substantially orthogonal to the preferential bending plane and passing through the cable neutral axis.
    Type: Application
    Filed: October 23, 2003
    Publication date: April 12, 2007
    Inventors: Massimo Pizzorno, Alessandro Ginocchio, Mauro Maritano
  • Patent number: 7162130
    Abstract: Optical fiber having a glass portion; at least one protective coating of thermoplastic material having at least one thermoplastic elastomer; the thermoplastic material having the following characteristics: a modulus of elasticity value at +25° C. lower than 150 MPa, preferably at least 10 Mpa, more preferably higher than 20 Mpa, and a Vicat point higher than 85° C., preferably higher than 120° C., more preferably lower than 350° C. Preferably, the coating is a single protective coating directly positioned onto the glass portion.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: January 9, 2007
    Assignee: Prysmian Cavi e Sistemi Energia S.r.l.
    Inventors: Luca Castellani, Giovanni Brandi, Mauro Maritano, Franco Peruzzotti, Giacomo Stefano Roba, Sabrina Fogliani, Lidia Terruzzi
  • Patent number: 7155094
    Abstract: A water-resistant telecommunication cable is disclosed comprising a solid and compact element surrounding at least one optical transmitting element, wherein the element is made from a vinyl alcohol/vinyl acetate copolymer having a hydrolysis degree of about 60% to about 95% and a polymerization degree higher than about 2,500; at least a first solid plasticizer having a melting point between 50° and 110° C., and a second solid plasticizer having a melting point equal or higher than 140° C., in an amount of about 10–30 and 1–10 parts by weight per hundred parts by weight of the copolymer, respectively; the water-soluble polymer material showing: a complex modulus (G*) equal to or higher than 2.5 106 Mpa; a ratio of the viscous modulus to the elastic modulus (tan ?) equal to or lower than 2.30; and a glass transition temperature (Tg) of about 20° to about 35° C.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: December 26, 2006
    Assignee: Prysmian Cavi E Sistemi Energia S.R.L.
    Inventors: Raffaella Donetti, Massimiliano Pavan, Giovanni Brandi, Mauro Maritano
  • Patent number: 7120343
    Abstract: An optical fiber having at least one epoxidized polyolefin based polymer coating. The coating is formed from a crosslinkable composition having (a) at least one epoxidized polydiene oligomer having a first and a second end, the oligomer having at least one hydrocarbon chain that is substantially free of ethylenic double bonds, at least one epoxide group at the first end and at least one reactive functional group at the second end; (b) at least one hydrogenated polydiene oligomer having at least one reactive functional group capable of reacting with the epoxide groups; and (c) at least one photo-initiator. Preferably, the coating is a primary coating coated with a secondary coating.
    Type: Grant
    Filed: September 21, 2005
    Date of Patent: October 10, 2006
    Assignee: Perelli & C. S.p.A.
    Inventors: Luca Castellani, Luigia Rossiello, Andrea Pelizzoni, Raffaella Donetti, Lidia Terruzzi, Mauro Maritano