Patents by Inventor Ubaldo Vallauri
Ubaldo Vallauri 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: 10401387Abstract: A manufacturing method of contact probes for a testing head comprises the steps of: providing a substrate made of a conductive material; and defining at least one contact probe by laser cutting the substrate. The method further includes at least one post-processing fine definition step of at least one end portion of the contact probe, that follows the step of defining the contact probe by laser cutting, the end portion being a portion including a contact tip or a contact head of the contact probe. The fine definition step does not involve a laser processing and includes geometrically defining the end portion of the contact probe with at least a substantially micrometric precision.Type: GrantFiled: June 30, 2017Date of Patent: September 3, 2019Assignee: TECHNOPROBE S.P.A.Inventor: Raffaele Ubaldo Vallauri
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Publication number: 20170307656Abstract: A manufacturing method of contact probes for a testing head comprises the steps of:—providing a substrate made of a conductive material; and—defining at least one contact probe by laser cutting the substrate. The method further includes at least one post-processing fine definition step of at least one end portion of the contact probe, that follows the step of defining the contact probe by laser cutting, the end portion being a portion including a contact tip or a contact head of the contact probe. The fine definition step does not involve a laser processing and includes geometrically defining the end portion of the contact probe with at least a substantially micrometric precision.Type: ApplicationFiled: June 30, 2017Publication date: October 26, 2017Inventor: Raffaele Ubaldo Vallauri
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Publication number: 20170122983Abstract: A testing head comprising vertical probes includes at least one guide provided with guide holes for housing a plurality of contact probes, each of the contact probes having at least one contact tip able to ensure the mechanical and electrical contact with a corresponding contact pad of a device under test, the guide being housed in a containment element of the testing head. Suitably, each of the contact probes comprises a deformed portion, placed in a bending zone between the guide and the device under test, that deformed portion being adapted to further deform during the normal working of the testing head and being prolonged, at least towards the device under test, by an end portion having a diameter suitable to realize the contact tip, the end portion having a longitudinal extension or height exceeding 500 ?m.Type: ApplicationFiled: January 12, 2017Publication date: May 4, 2017Inventors: Daniele Acconcia, Raffaele Ubaldo Vallauri
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Publication number: 20170122980Abstract: A contact probe for a testing head of an apparatus for testing electronic devices is described comprising a body extending between a contact tip and a contact head, that contact probe comprising at least one first section and one second section made of at least two different materials and joined together in correspondence of a soldering line.Type: ApplicationFiled: January 12, 2017Publication date: May 4, 2017Inventors: Roberto Crippa, Raffaele Ubaldo Vallauri, Emanuele Bertarelli
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Patent number: 9613735Abstract: An apparatus for applying an elastic tubular sleeve onto a splicing region between at least one pair of cables, wherein the tubular sleeve is supported in a radially expanded condition on at least one supporting element, may include axial-movement devices configured to axially move the at least one supporting element relative to the tubular sleeve at an adjustable speed, so as to cause a radial elastic shrinkage of the tubular sleeve capable of inducing an axial ejection thrust on the at least one supporting element, and counter devices configured to counteract the axial ejection thrust induced by the elastic shrinkage of the tubular sleeve.Type: GrantFiled: September 10, 2013Date of Patent: April 4, 2017Assignee: PRYSMIAN CAVI E SISTEMI ENERGIA S.R.I.Inventors: Francesco Portas, Ubaldo Vallauri
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Patent number: 9184576Abstract: 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 elastically radially expanded condition on an outer surface of the support; interposing a lubricating material between the support and sleeve; arranging a circumferentially continuous sealing element between the halves to prevent the lubricant from percolating between the halves; positioning the support around the junction area; and moving the halves apart from each other to enable the sleeve to collapse on the junction area. A device for coating the junction area between elongated elements and a method of making the device and a joint for electric cables.Type: GrantFiled: February 20, 2014Date of Patent: November 10, 2015Assignee: PRYSMIAN CAVI E SISTEMI ENERGIA S.R.L.Inventors: Ubaldo Vallauri, Francesco Portas
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Patent number: 8789570Abstract: An apparatus for disposing a tubular covering sleeve for electric-cable joints on a supporting element may include a support for the tubular covering sleeve; a pair of expanders; driving means configured to introduce the expanders into respective ends of the tubular covering sleeve and to cause radial expansion of the tubular covering sleeve; and devices for disposing the tubular covering sleeve in a radially expanded condition on the supporting element. The expanders may be configured to be placed in substantially coaxial positions relative to the tubular covering sleeve at the respective ends of the tubular covering sleeve.Type: GrantFiled: July 26, 2012Date of Patent: July 29, 2014Assignee: Prysmian Cavi e Sistemi Energia S.R.L.Inventors: Francesco Portas, Ubaldo Vallauri
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Publication number: 20140166359Abstract: 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 elastically radially expanded condition on an outer surface of the support; interposing a lubricating material between the support and sleeve; arranging a circumferentially continuous sealing element between the halves to prevent the lubricant from percolating between the halves; positioning the support around the junction area; and moving the halves apart from each other to enable the sleeve to collapse on the junction area. A device for coating the junction area between elongated elements and a method of making the device and a joint for electric cables.Type: ApplicationFiled: February 20, 2014Publication date: June 19, 2014Applicant: PIRELLI CAVI E SISTEMI ENERGIA S.R.L.Inventors: Ubaldo Vallauri, Francesco Portas
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Patent number: 8697995Abstract: 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 elastically radially expanded condition on an outer surface of the support; interposing a lubricating material between the support and sleeve; arranging a circumferentially continuous sealing element between the halves to prevent the lubricant from percolating between the halves; positioning the support around the junction area; and moving the halves apart from each other to enable the sleeve to collapse on the junction area. A device for coating the junction area between elongated elements and a method of making the device and a joint for electric cables.Type: GrantFiled: December 8, 2011Date of Patent: April 15, 2014Assignee: Prysmian Cavi E Sistemi Energia S.R.L.Inventors: Ubaldo Vallauri, Francesco Portas
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Publication number: 20140007421Abstract: An apparatus for applying an elastic tubular sleeve onto a splicing region between at least one pair of cables, wherein the tubular sleeve is supported in a radially expanded condition on at least one supporting element, may include axial-movement devices configured to axially move the at least one supporting element relative to the tubular sleeve at an adjustable speed, so as to cause a radial elastic shrinkage of the tubular sleeve capable of inducing an axial ejection thrust on the at least one supporting element, and counter devices configured to counteract the axial ejection thrust induced by the elastic shrinkage of the tubular sleeve.Type: ApplicationFiled: September 10, 2013Publication date: January 9, 2014Applicant: PRYSMIAN CAVI E SISTEMI ENERGIA S.R.LInventors: Francesco PORTAS, Ubaldo VALLAURI
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Patent number: 8555499Abstract: A method of splicing first and second cables may include providing an elastic tubular sleeve, supported by at least one supporting element, in a radially expanded condition; arranging the sleeve in the radially expanded condition around one cable; connecting the cables to obtain a splicing region; positioning the sleeve in the radially expanded condition around the splicing region; axially moving the at least one supporting element relative to the sleeve to cause radial elastic shrinkage of the sleeve capable of inducing axial ejection thrust on the at least one supporting element; counteracting the axial ejection thrust; and adjusting axial movement speed of the at least one supporting element to adapt the axial movement speed to a speed of the elastic shrinkage. Counteracting the axial ejection thrust may include applying axial reaction force to one end of the at least one supporting element axially projecting from the sleeve.Type: GrantFiled: October 19, 2005Date of Patent: October 15, 2013Assignee: Prysmian Cavi e Sistemi Energia S.r.l.Inventors: Francesco Portas, Ubaldo Vallauri
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Publication number: 20130061465Abstract: An apparatus for disposing a tubular covering sleeve for electric-cable joints on a supporting element may include a support for the tubular covering sleeve; a pair of expanders; driving means configured to introduce the expanders into respective ends of the tubular covering sleeve and to cause radial expansion of the tubular covering sleeve; and devices for disposing the tubular covering sleeve in a radially expanded condition on the supporting element. The expanders may be configured to be placed in substantially coaxial positions relative to the tubular covering sleeve at the respective ends of the tubular covering sleeve.Type: ApplicationFiled: July 26, 2012Publication date: March 14, 2013Inventors: Francesco PORTAS, Ubaldo Vallauri
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Patent number: 8273200Abstract: A method of disposing a tubular covering sleeve for electric-cable joints on a supporting element may include arranging the sleeve in a rest and not yet expanded condition; causing radial expansion of the sleeve starting from axially opposite end portions; and arranging the sleeve in a radially expanded condition on the supporting element. Radial expansion of the sleeve may be carried out gradually, starting from the end portions of the sleeve toward an axially intermediate portion of the sleeve. The method of may include arranging the sleeve; arranging a pair of expanders, each at a respective end of the sleeve and at a substantially coaxial position relative to the sleeve; introducing the expanders into the respective ends of the sleeve; abutting distal ends of the expanders against each other at an axially intermediate portion of the sleeve; and arranging the sleeve in a radially expanded condition on the supporting element.Type: GrantFiled: December 28, 2005Date of Patent: September 25, 2012Assignee: Prysmian Cavi e Sistemi Energia S.R.L.Inventors: Francesco Portas, Ubaldo Vallauri
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Publication number: 20120073498Abstract: 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 elastically radially expanded condition on an outer surface of the support; interposing a lubricating material between the support and sleeve; arranging a circumferentially continuous sealing element between the halves to prevent the lubricant from percolating between the halves; positioning the support around the junction area; and moving the halves apart from each other to enable the sleeve to collapse on the junction area. A device for coating the junction area between elongated elements and a method of making the device and a joint for electric cables.Type: ApplicationFiled: December 8, 2011Publication date: March 29, 2012Applicant: PRYSMIAN CAVI E SISTEMI ENERGIA S.R.L.Inventors: Ubaldo VALLAURI, Francesco Portas
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Patent number: 8119193Abstract: 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 elastically radially expanded condition on an outer surface of the support; interposing a lubricating material between the support and sleeve; arranging a circumferentially continuous sealing element between the halves to prevent the lubricant from percolating between the halves; positioning the support around the junction area; and moving the halves apart from each other to enable the sleeve to collapse on the junction area. A device for coating the junction area between elongated elements and a method of making the device and a joint for electric cables.Type: GrantFiled: October 27, 2004Date of Patent: February 21, 2012Assignee: Prysmian Cavi E Sistemi Energia S.R.L.Inventors: Ubaldo Vallauri, Francesco Portas
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Patent number: 7872197Abstract: 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. The coating sheath may include one or more layers of semiconductive material mechanically engaged in a condition of resilient radial expansion around the primary tubular body so as to exert a centripetal tightening action on the primary tubular body. A junction for electric cables may include devices for mutual connection between the conductors of the cables and a covering sleeve applied around the devices for mutual connection and around the cables. Each cable may include at least one conductor disposed in an insulating coating and a shielding coating externally applied to the insulating coating.Type: GrantFiled: December 28, 2005Date of Patent: January 18, 2011Assignee: Prysmian Cavi E Sistemi Energia S.r.l.Inventors: Ubaldo Vallauri, Francesco Portas
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Patent number: 7838770Abstract: 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), said tubular sleeve (15) being supported in an expanded condition on a removable hollow supporting element (16) detachable in a first supporting portion (17) and a second supporting portion (18).Type: GrantFiled: September 16, 2004Date of Patent: November 23, 2010Assignee: Prysmian Cavi e Sistemi Energia S.r.l.Inventors: Francesco Portas, Ubaldo Vallauri
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Publication number: 20100146785Abstract: An elastic tubular sleeve (8) in engagement with a tubular supporting element (9) is set to a substantially coaxial position around one of the electric cables (2a, 2b). Subsequently, the conductors (3a, 3b) of the cables (2a, 2b) are mutually connected to obtain a splicing region between said cables. The tubular sleeve (8) in engagement with the supporting element (9) is positioned around the splicing region. By use of a suitable apparatus (100, 101, 102) previously engaged on the sleeve (8) and the supporting element (9), the supporting element (9) is drawn out of the tubular sleeve (8) so as to cause a radial elastic shrinkage of the tubular sleeve (8) capable of inducing an axial ejection thrust on the supporting element (9) itself. Counter devices (12) associated with the apparatus (100, 101, 102) counteract the axial ejection thrust so as to allow the speed at which the supporting element (9) is drawn out of the sleeve (8) itself to be controlled.Type: ApplicationFiled: October 19, 2005Publication date: June 17, 2010Inventors: Francesco Portas, Ubaldo Vallauri
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Patent number: 7728227Abstract: The present invention relates to a method for covering an elongate object in particular an electric cable or a pipe. The method includes providing a covering assembly which includes a tubular elastic covering element having at least one end which is folded to define at least one backward folded portion and at least one forward folded portion; a first supporting element which is arranged radially internal to the covering element and which holds the covering element in a radially stretched condition, and a second supporting element which is coaxially arranged around the first supporting element, the second supporting element holding said forward folded portion of the tubular elastic covering element in a radially stretched condition; removing the first supporting element to allow the sleeve to gradually collapse onto the elongate object.Type: GrantFiled: June 25, 2004Date of Patent: June 1, 2010Assignee: Prysmian Cavi E Sistemi Energia SRLInventors: Francesco Portas, Ubaldo Vallauri
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Patent number: 7645408Abstract: 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 stress control screens. The process includes providing the electric field-control element and the two stress control screens on a supporting element; introducing the supporting element into a mold provided for molding the electrical insulating element; filling with the electrical insulating material the space radially external to the electric field-control element and the stress control screens, the step of filling being carried out during the step of introducing; curing the electrical insulating material to obtain the electrical insulating element of the elastomeric sleeve. An apparatus for carrying out the process for manufacturing is also disclosed.Type: GrantFiled: October 30, 2002Date of Patent: January 12, 2010Assignee: Prysmian Cavi E Sistemi Energia S.R.L.Inventors: Ubaldo Vallauri, Francesco Portas