Patents by Inventor Massimiliano Vezzoli
Massimiliano Vezzoli 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: 10333374Abstract: Insulation systems that present an electrical stress grading through the disposition of resistively graded networks between insulating layers is described. The resistively graded networks may be implemented by coating insulating material with resistive material, and wrapping the insulation material around a conductor. The resistive material may be linear or non-linear material. Fabrication of the insulating material, the resistive material, and the coating process are also discussed, as well as the application of the insulation to the conductor are also discussed.Type: GrantFiled: May 8, 2017Date of Patent: June 25, 2019Assignee: GENERAL ELECTRIC COMPANYInventors: Jeffrey Stuart Sullivan, Christopher Michael Calebrese, Qin Chen, Alexander Rene Anderton, Massimiliano Vezzoli
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Publication number: 20180323688Abstract: Insulation systems that present an electrical stress grading through the disposition of resistively graded networks between insulating layers is described. The resistively graded networks may be implemented by coating insulating material with resistive material, and wrapping the insulation material around a conductor. The resistive material may be linear or non-linear material. Fabrication of the insulating material, the resistive material, and the coating process are also discussed, as well as the application of the insulation to the conductor are also discussed.Type: ApplicationFiled: May 8, 2017Publication date: November 8, 2018Inventors: Jeffrey Stuart Sullivan, Christopher Michael Calebrese, Qin Chen, Alexander Rene Anderton, Massimiliano Vezzoli
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Patent number: 9257878Abstract: An arrangement includes conducting bar ends connected together and a cap) covering them filled with a putty. The cap is made of a resin containing a high thermal conductivity filler. The putty is a silicone elastomer containing a high thermal conductivity filler.Type: GrantFiled: September 14, 2011Date of Patent: February 9, 2016Assignee: ALSTOM TECHNOLOGY LTD.Inventors: Alexander Anderton, Thomas Baumann, Massimiliano Vezzoli, Thomas Hillmer, Stephan Mueller, Konstantinos Ballos, Mostafa Sadeghi, Dieter Stoll, Hossein Safari Zadeh
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Patent number: 9246374Abstract: A method is for impregnating a high voltage insulation of a winding bar (10), the winding bar (10) having a conductive bar (1) around which layers of insulating mica tape defining said high voltage insulation are wrapped. The method includes enclosing the winding bar (10) in a flexible sleeve (3), applying a vacuum in the flexible sleeve (3) to extract the gases contained in the insulating mica tape, supplying an impregnating resin into the flexible sleeve (3) to impregnate the mica tape (2), and curing the resin. The impregnating resin is supplied into the flexible sleeve (3) at a pressure less than 1.5 bar.Type: GrantFiled: December 17, 2010Date of Patent: January 26, 2016Assignee: ALSTOM RENEWABLE TECHNOLOGIESInventors: Thomas Baumann, Massimiliano Vezzoli
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Patent number: 9032618Abstract: A method for insulating (5) a conductive bar (1) includes wrapping an insulating tape (2) around the conductive bar (1), enclosing it in a flexible container (4), applying a vacuum, impregnating the insulating tape (2) with an impregnating resin, curing the impregnating resin, and removing the conductive bar (1) with the insulation (5) around it from the flexible container (4). In addition, together with the insulating tape (2), an impregnating tape (3) made of the impregnating resin is wrapped around the conductive bar (1). In order to impregnate, the impregnating tape (3) is melted.Type: GrantFiled: December 17, 2010Date of Patent: May 19, 2015Assignee: ALSTOM RENEWABLE TECHNOLOGIESInventors: Thomas Baumann, Massimiliano Vezzoli, Thomas Hillmer, Thomas Widmer, Dieter Stoll, Clemens Dransfeld
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Patent number: 8952256Abstract: A high voltage stator bar includes a substantially quadrangular conductive element made of a plurality of interwoven strands, and an electric insulation applied around the conductive element. The permittivity at the corners of the electric insulation decreases by less than 60% from an inner insulation zone facing the conductive element towards an outer insulation zone.Type: GrantFiled: June 30, 2011Date of Patent: February 10, 2015Assignee: Alstom Technology Ltd.Inventors: Thomas Baumann, Massimiliano Vezzoli, Dieter Stoll, Johann Haldemann
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Publication number: 20150028701Abstract: A stator bar includes a substantially quadrangular conductive element made of a plurality of interwoven strands. The stator bar also includes an electric insulation applied around the conductive element and including a plurality of corners corresponding to corners of the conductive element. The electric insulation includes an inner insulation zone facing the conductive element, and an outer insulation zone surrounding the inner insulation zone. The radius of at least one of the corners is between 1.5-2.5 millimeters. Permittivity at the corners of the electric insulation decreases by 35-45% from the inner insulation zone facing the conductive element towards the outer insulation zone. The insulation includes at least one mica layer, where one of the at least one mica layer includes titanium dioxide (TiO2).Type: ApplicationFiled: October 14, 2014Publication date: January 29, 2015Applicant: ALSTOM Technology LtdInventors: Thomas BAUMANN, Massimiliano Vezzoli, Dieter Stoll, Johann Haldemann
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Publication number: 20150000111Abstract: A yard includes an electric machine having a slot housing the conductive bar. The conductive bar includes a conductive element, and original insulation around the conductive element. The method includes removing the conductive bar from the slot, removing the original insulation from the conductive element, and applying new insulation around the conductive element on the yard.Type: ApplicationFiled: September 19, 2014Publication date: January 1, 2015Inventors: Ruediger STEIN, Alfred ZIEGLER, Massimiliano VEZZOLI
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Publication number: 20120169172Abstract: A method for manufacturing a stator bar includes providing a conductor with an insulation around it, and wrapping an expandable tape around the insulation. The stator bar can be used to manufacture a stator.Type: ApplicationFiled: December 22, 2011Publication date: July 5, 2012Applicant: ALSTOM TECHNOLOGY LTDInventors: Alexander Rene ANDERTON, Dieter STOLL, Massimiliano VEZZOLI
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Publication number: 20120068560Abstract: An arrangement includes conducting bar ends connected together and a cap) covering them filled with a putty. The cap is made of a resin containing a high thermal conductivity filler. The putty is a silicone elastomer containing a high thermal conductivity filler.Type: ApplicationFiled: September 14, 2011Publication date: March 22, 2012Applicant: ALSTOM TECHNOLOGY LTDInventors: Alexander ANDERTON, Thomas Baumann, Massimiliano VEZZOLI, Thomas HILLMER, Stephan MUELLER, Konstantinos BALLOS, Mostafa SADEGHI, Dieter STOLL, Hossein SAFARI ZADEH
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Publication number: 20120001514Abstract: A high voltage stator bar includes a substantially quadrangular conductive element made of a plurality of interwoven strands, and an electric insulation applied around the conductive element. The permittivity at the corners of the electric insulation decreases by less than 60% from an inner insulation zone facing the conductive element towards an outer insulation zone.Type: ApplicationFiled: June 30, 2011Publication date: January 5, 2012Applicant: ALSTOM Technology Ltd.Inventors: Thomas BAUMANN, Massimiliano Vezzoli, Dieter Stoll, Johann Haldemann
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Publication number: 20110179643Abstract: A method for insulating (5) a conductive bar (1) includes wrapping an insulating tape (2) around the conductive bar (1), enclosing it in a flexible container (4), applying a vacuum, impregnating the insulating tape (2) with an impregnating resin, curing the impregnating resin, and removing the conductive bar (1) with the insulation (5) around it from the flexible container (4). In addition, together with the insulating tape (2), an impregnating tape (3) made of the impregnating resin is wrapped around the conductive bar (1). In order to impregnate, the impregnating tape (3) is melted.Type: ApplicationFiled: December 17, 2010Publication date: July 28, 2011Inventors: Thomas Baumann, Massimiliano Vezzoli, Thomas Hillmer, Thomas Widmer, Dieter Stoll, Clemens Dransfeld
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Publication number: 20110147981Abstract: A method is for impregnating a high voltage insulation of a winding bar (10), the winding bar (10) having a conductive bar (1) around which layers of insulating mica tape defining said high voltage insulation are wrapped. The method includes enclosing the winding bar (10) in a flexible sleeve (3), applying a vacuum in the flexible sleeve (3) to extract the gases contained in the insulating mica tape, supplying an impregnating resin into the flexible sleeve (3) to impregnate the mica tape (2), and curing the resin. The impregnating resin is supplied into the flexible sleeve (3) at a pressure less than 1.5 bar.Type: ApplicationFiled: December 17, 2010Publication date: June 23, 2011Inventors: Thomas Baumann, Massimiliano Vezzoli