Patents by Inventor Ugo Masciantonio
Ugo Masciantonio 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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Publication number: 20230044987Abstract: A machining spindle that includes a tool-holder shaft (2), a first actuator connected to a coupling member (11) slidably connected to a first section (21) of the shaft to rotate the shaft, a second actuator connected to a nut helically connected to a second section (22) of the shaft to move the shaft axially and a control rod (24) of a tool-holder attachment system connected to the second section by a full connection. The spindle includes locking means (40) mounted movable between the first and second sections by switchover means (50), between a first position in which the first and second sections are in full connection and a second position allowing axial movement of the second section relative to the first section, enabling the control rod to be moved axially under the action of the second actuator to control the attachment system in a released position of the tool holder.Type: ApplicationFiled: December 15, 2020Publication date: February 9, 2023Inventors: Ugo MASCIANTONIO, George MORARU
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Patent number: 11355691Abstract: A piezoelectric actuator control device comprising a first voltage converter supplying a DC voltage on a DC power supply bus to which is connected a second voltage converter capable of generating a variable excitation voltage under the control of a control computer, the second voltage converter comprising two switch half-bridges mounted in parallel with the terminals of a bus capacitor, the control computer being suitable for controlling the two switch half-bridges according to a first control configuration, in which they are controlled independently in order to each supply a voltage in a range between zero and a maximum positive value and according to a second control configuration, in which they are jointly controlled as a full-bridge for supplying a voltage between a minimum negative value and said maximum positive value.Type: GrantFiled: December 13, 2017Date of Patent: June 7, 2022Inventors: Ugo Masciantonio, George Moraru, Théophile Durdan
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Publication number: 20200091399Abstract: A piezoelectric actuator control device comprising a first voltage converter supplying a DC voltage on a DC power supply bus to which is connected a second voltage converter capable of generating a variable excitation voltage under the control of a control computer, the second voltage converter comprising two switch half-bridges mounted in parallel with the terminals of a bus capacitor, the control computer being suitable for controlling the two switch half-bridges according to a first control configuration, in which they are controlled independently in order to each supply a voltage in a range between zero and a maximum positive value and according to a second control configuration, in which they are jointly controlled as a full-bridge for supplying a voltage between a minimum negative value and said maximum positive value.Type: ApplicationFiled: December 13, 2017Publication date: March 19, 2020Inventors: Ugo MASCIANTONIO, George MORARU, Théophile DURDAN
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Patent number: 10207334Abstract: A machining device including a framework, a transmission shaft and a drive mechanism including a rotation member for driving the shaft in rotation about its axis, a drive member in helical connection with the shaft to drive the translation thereof along its axis with a feed movement, according to the relative rotational speed of the rotation and drive members. The drive member is mounted with the ability to effect translational movement with respect to the framework along the axis and is positioned between the rotation member and an end for coupling of the shaft to a cutting tool, while an electromechanical actuator is mounted in a fixed frame of reference associated with the framework in front of the drive member to which it can be coupled in order to cause it to oscillate translationally so as to superpose an axial oscillation component with the feed movement.Type: GrantFiled: October 20, 2015Date of Patent: February 19, 2019Assignees: CENTRE TECHNIQUE DES INDUSTRIES MECANIQUES, AMVALORInventors: Ugo Masciantonio, George Moraru
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Patent number: 9925598Abstract: A machining device including a casing, a transmission shaft (3) and a drive mechanism (1) including a first gearing member (13) that is able to rotate the shaft about its axis (A), a second gearing member (17) that is in a helicoidal connection with the shaft in order to drive the shaft translationally along its axis in a feed movement, depending on the relative rotational speed of the first and second gearing members, and means for generating axial oscillations. The second gearing member (17) is able to move translationally along the axis (A) with respect to the casing, the means for generating axial oscillations including an electromechanical actuator (20) mounted at a fixed location, connected to the casing, and able to be coupled axially to the second gearing member (17) in order to make it oscillate translationally, so as to superimpose an axial oscillation component on said feed movement.Type: GrantFiled: June 5, 2014Date of Patent: March 27, 2018Assignees: CENTRE TECHNIQUE DES INDUSTRIES MECANIQUES, AMVALORInventors: Ugo Masciantonio, George Moraru
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Publication number: 20170355026Abstract: A machining device including a framework, a transmission shaft and a drive mechanism including a rotation member for driving the shaft in rotation about its axis, a drive member in helical connection with the shaft to drive the translation thereof along its axis with a feed movement, according to the relative rotational speed of the rotation and drive members. The drive member is mounted with the ability to effect translational movement with respect to the framework along the axis and is positioned between the rotation member and an end for coupling of the shaft to a cutting tool, while an electromechanical actuator is mounted in a fixed frame of reference associated with the framework in front of the drive member to which it can be coupled in order to cause it to oscillate translationally so as to superpose an axial oscillation component with the feed movement.Type: ApplicationFiled: October 20, 2015Publication date: December 14, 2017Inventors: Ugo MASCIANTONIO, George MORARU
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Publication number: 20160129505Abstract: A machining device including a casing, a transmission shaft (3) and a drive mechanism (1) including a first gearing member (13) that is able to rotate the shaft about its axis (A), a second gearing member (17) that is in a helicoidal connection with the shaft in order to drive the shaft translationally along its axis in a feed movement, depending on the relative rotational speed of the first and second gearing members, and means for generating axial oscillations. The second gearing member (17) is able to move translationally along the axis (A) with respect to the casing, the means for generating axial oscillations including an electromechanical actuator (20) mounted at a fixed location, connected to the casing, and able to be coupled axially to the second gearing member (17) in order to make it oscillate translationally, so as to superimpose an axial oscillation component on said feed movement.Type: ApplicationFiled: June 5, 2014Publication date: May 12, 2016Applicant: CENTRE TECHNUQUE DES INDUSTRIES MECANIQUESInventors: Ugo MASCIANTONIO, George MORARU
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Patent number: 8876447Abstract: A tool holder for a machining tool includes a cooling means for a compressed air blowing tool and a device for cooling air compressed by a vortex tube device. The tool holder is generally cylindrical and the vortex tube device advantageously includes a plurality of vortex tubes placed annularly around the axis of the cylinder and the cold air outputs of which are directed at the tool held by the tool holder.Type: GrantFiled: July 17, 2009Date of Patent: November 4, 2014Assignees: European Aeronautic Defence & Space Company, E.P.B., Sarl AlbretInventors: Delphine Allehaux, Patrice Rabate, Alain Freyermuth, Jean Bernard Cledat, Jean-Pierre Fantin, Ugo Masciantonio
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Publication number: 20120070237Abstract: A tool holder for a machining tool includes a cooling means for a compressed air blowing tool and a device for cooling air compressed by a vortex tube device. The tool holder is generally cylindrical and the vortex tube device advantageously includes a plurality of vortex tubes placed annularly around the axis of the cylinder and the cold air outputs of which are directed at the tool held by the tool holder.Type: ApplicationFiled: July 17, 2009Publication date: March 22, 2012Applicants: E.P.B., EUROPEAN AERONAUTIC DEFENCE AND SPACE COMPANY EADS FRANCE, SARL ALBRETInventors: Delphine Allehaux, Patrice Rabate, Alain Freyermuth, Jean Bernard Cledat, Jean-Pierre Fantin, Ugo Masciantonio