Patents by Inventor Thierry Ducros
Thierry Ducros 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: 10913229Abstract: A method for winding a rubber strip onto a form of revolution includes steps of: forming a strip of predetermined length, applying front and rear edge marks to the strip, driving the strip towards the form, arranging a front edge of the strip on the form, and driving the form to wind the strip onto the form. In a first phase, the driving of the strip and the driving of the form are synchronized so as not to modify the length of the strip. In a second phase, the driving of the strip and the driving of the form are controlled depending on an angular position of the form and on a position of the rear edge mark, in order to vary relatively a displacement speed of the rear edge mark and a displacement speed of the front edge mark, to compensate for variations in the length of the strip.Type: GrantFiled: December 13, 2016Date of Patent: February 9, 2021Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Grégory Marcet, Thierry Ducros, Stéphane Ravat
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Publication number: 20180345612Abstract: A method for winding a rubber strip onto a form of revolution includes steps of: forming a strip of predetermined length, applying front and rear edge marks to the strip, driving the strip towards the form, arranging a front edge of the strip on the form, and driving the form to wind the strip onto the form. In a first phase, the driving of the strip and the driving of the form are synchronized so as not to modify the length of the strip. In a second phase, the driving of the strip and the driving of the form are controlled depending on an angular position of the form and on a position of the rear edge mark, in order to vary relatively a displacement speed of the rear edge mark and a displacement speed of the front edge mark, to compensate for variations in the length of the strip.Type: ApplicationFiled: December 13, 2016Publication date: December 6, 2018Inventors: GRÉGORY MARCET, THIERRY DUCROS, STÉPHANE RAVAT
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Patent number: 10081147Abstract: The method includes the step of running a cutting means between two threads of the reinforcing ply. The method proceeds with the steps of measuring; a discrepancy between an actual cutting line (A?B?C?) and a theoretical cutting line (ABC) is measured and determining a point of intersection of the actual cutting line (B?) with a reference longitudinal line (XX?) placed on the strip. The actual cutting line (B?C?) of that part of the rubber profiled elements that are not superposed with the reinforcing ply is longitudinally offset (Z) with respect to the theoretical cutting line (BC) so that the actual cutting line (B?C?) meets the reference longitudinal line (XX?) at the point of intersection (B?) of the reinforcing ply (A?B?) with the reference longitudinal line (XX?). The rubber profiled elements that are not superposed with the reinforcing ply are cut along the said actual cutting line.Type: GrantFiled: September 19, 2013Date of Patent: September 25, 2018Assignees: Compagnie Generale Des Etablissements Michelin, Michelin Recherche Et Technique, S.A.Inventors: Michel Deboeuf, Clement Dubois, Thierry Ducros, Stephane Ravat
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Patent number: 9855716Abstract: Device for cutting and transferring a length of strip let off a continuous strip, comprising a first face and a second face to be laid on a rotary receiving surface and containing a cutting means to separate the said length from the continuous strip along a cutting line, a telescopic conveyor belt, arranged in a longitudinal direction between the cutting means and the receiving surface, to receive the length of strip via the first face, a first half-anvil, upstream of the cutting line, and comprising holding means to grasp the strip via the first face, a transporter, having holding means to grasp the front edge or rear edge of the length of strip via the second face, the transporter able to move in the longitudinal direction.Type: GrantFiled: June 18, 2013Date of Patent: January 2, 2018Assignees: Compagnie Generale des Etablissements Michelin, Michelin Recherche et Technique, S.A.Inventors: Michel Deboeuf, Jr., Thierry Ducros, Stephane Ravat, Mickael Rouby
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Patent number: 9701079Abstract: A cutting blade, which is useable for cutting a reinforcing strip into reinforcing plies, includes one or more notches disposed at given intervals. When a volume of rubber separating two reinforcing threads is cut by the cutting blade, bridges of rubber are left between a rear edge of a first reinforcing ply and a front edge of a second reinforcing ply.Type: GrantFiled: December 12, 2012Date of Patent: July 11, 2017Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE S.A.Inventors: Thierry Ducros, Stéphane Ravat, Michel Deboeuf
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Patent number: 9539737Abstract: Cutting device for cutting a reinforcing ply (N) formed of a set of portions of thread, of given length, coated in a rubber compound, laid parallel to one another and making a given theoretical angle (a) with the longitudinal direction of the ply, characterized in that it includes a first element able, without proceeding to cut the said ply (N), to estimate the actual angle of the threads with the longitudinal direction (XX?) of the device and a second element able to cut the ply (N) at the actual angle (a+da) estimated by the first element.Type: GrantFiled: December 7, 2010Date of Patent: January 10, 2017Assignees: COMPAGNIE GENERALE DES ESTABLISSEMENTS MICHELIN, Michelin Recherche et Technique S.A.Inventors: Stéphane Ravat, Thierry Ducros, Clément Dubois
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Publication number: 20150298409Abstract: Device for cutting and transferring a length of strip let off a continuous strip, comprising a first face and a second face to be laid on a rotary receiving surface and containing a cutting means to separate the said length from the continuous strip along a cutting line, a telescopic conveyor belt, arranged in a longitudinal direction between the cutting means and the receiving surface, to receive the length of strip via the first face, a first half-anvil, upstream of the cutting line, and comprising holding means to grasp the strip via the first face, a transporter, having holding means to grasp the front edge or rear edge of the length of strip via the second face, the transporter able to move in the longitudinal direction.Type: ApplicationFiled: June 18, 2013Publication date: October 22, 2015Applicants: MICHELIN RECHERCHE ET TECHNIQUE, S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Michel DEBOEUF, Jr., Thierry DUCROS, Stephane RAVAT, Mickael ROUBY
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Publication number: 20150239192Abstract: Method for cutting to length a strip formed of preassembled products comprising one or more rubber profiled elements superposed in part on a reinforcing ply made up of threads coated in rubber and making an angle (a) with the longitudinal direction of the strip, during which method the following steps are performed: a cutting means is run between two threads of the reinforcing ply, the discrepancy between the actual cutting line (A?B?C?) and a theoretical cutting line (ABC) is measured, and the point of intersection of the actual cutting line (B?) with a reference longitudinal line (XX?) placed on the strip is determined, the actual cutting line (B?C?) of that part of the rubber profiled elements that are not superposed with the reinforcing ply is longitudinally offset (Z) with respect to the theoretical cutting line (BC) so that the said actual cutting line (B?C?) meets the reference longitudinal line (XX?) at the point of intersection (B?) of the actual cutting line of the reinforcing ply (A?B?) with theType: ApplicationFiled: September 19, 2013Publication date: August 27, 2015Applicants: MICHELIN RECHERCHE ET TECHNIQUE, S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Michel Deboeuf, Clement Dubois, Thierry Ducros, Stephane Ravat
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Publication number: 20150000483Abstract: A cutting blade, which is useable for cutting a reinforcing strip into reinforcing plies, includes one or more notches disposed at given intervals. When a volume of rubber separating two reinforcing threads is cut by the cutting blade, bridges of rubber are left between a rear edge of a first reinforcing ply and a front edge of a second reinforcing ply.Type: ApplicationFiled: December 12, 2012Publication date: January 1, 2015Applicants: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Michelin Recherche et Technique S.A.Inventors: Thierry Ducros, Stéphane Ravat, Michel Deboeuf
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Publication number: 20130199349Abstract: Cutting device (2) for cutting a reinforcing ply (N) formed of a set of portions of thread, of given length, coated in a rubber compound, laid parallel to one another and making a given theoretical angle (a) with the longitudinal direction of the ply, characterized in that it comprises a first means (23) able, without proceeding to cut the said ply (N), to estimate the actual angle of the threads with the longitudinal direction (XX?) of the device and a second means (25) able to cut the ply (N) at the actual angle (a+da) estimated by the first means (23).Type: ApplicationFiled: December 7, 2010Publication date: August 8, 2013Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Stéphane Ravat, Thierry Ducros, Clément Dubois
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Publication number: 20130199697Abstract: An improved tire manufacturing technique of laying a reinforcing ply on a receiving surface of generally cylindrical shape, said ply comprising a front edge and a rear edge which are intended to be butted against each other, after a complete rotation of the receiving surface, between a maximum tolerance and a minimum tolerance measured relative to a reference source.Type: ApplicationFiled: May 18, 2011Publication date: August 8, 2013Applicant: Compagnie Generale Des Etablissements MichelinInventors: Stéphane Ravat, Thierry Ducros, Mitchel Deboeuf