Patents Assigned to Michelin Recherche et Technique S.A.
  • Patent number: 10266553
    Abstract: A compound and the use thereof to prepare a functional or telechelic polyolefin is provided. The compound has the following formula (II): Y((CH2)p—B?)m??(II), wherein m=2 or 3; Y being an alkaline earth metal or zinc when m=2, Y being aluminum when m=3; B? being selected from the group comprising N(SiMe3)2; N(SiMe2CH2CH2SiMe2); C6F5; C3F7; C6F13; para-C6H4—NMe2; para-C6H4—O-Me; para-C6H4—N(SiMe3)2; and CH(OCH2CH2O); and p being an integer from 0 to 50.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: April 23, 2019
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE S.A., UNIVERSITE CLAUDE BERNARD LYON 1, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, CPE LYON FORMATION CONTINUE ET RECHERCHE
    Inventors: Guillaume Cortial, Julien Thuilliez, Christophe Boisson, Franck D'Agosto, Sébastien Norsic
  • Patent number: 10266016
    Abstract: The invention relates to improving the endurance of a bead of a radial tire for a heavy vehicle of construction plant type by reducing the compression to which the turn-up is subjected when the tire is driven on.
    Type: Grant
    Filed: June 6, 2012
    Date of Patent: April 23, 2019
    Assignees: Compagnie Generale Des Etablissements Michelin, Michelin Recherche Et Technique S.A.
    Inventors: Olivier Ferlin, François Harle
  • Patent number: 10259142
    Abstract: A Method for manufacturing molding elements for molds is provided herein. The molds are used for molding tires provided with a tread with a circumferential arrangement of tread pattern elements. The method includes: a step consisting in aligning a plurality of basic linings; a step consisting in generating, from the basic tread circumference portion, an intermediate support; and obtaining an unfinished molding element from the intermediate support.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: April 16, 2019
    Assignees: Compagnie Generale Des Etablissements Michelin, Michelin Recherche Et Technique, S.A.
    Inventors: Jerome Lepretre, Patrick Andanson, Enrique Segoviano
  • Patent number: 10259147
    Abstract: The extrusion apparatus includes a screw in a fixed barrel. The barrel has a feed inlet and an outlet with an extrusion nozzle which discharges into the nip between first and second rotary rolls that can rotate in opposite directions. The apparatus also has a first means for rotating and a first control means that are able to synchronize the speed of rotation of the first roll and the screw and has a second means that is able to rotate the second screw at a different speed of rotation than the first roll. The first control means can regulate the speed of rotation of the screw depending on the width of the strip, and a second control means can regulate the speed of rotation of the second roll depending on the thickness of the strip.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: April 16, 2019
    Assignees: Compagnie Generale Des Establissements Michelin, Michelin Recherche Et Technique, S.A.
    Inventors: Patrice Monnereau, Jean-Francois Verjat
  • Patent number: 10245891
    Abstract: A tread for a heavy vehicle tire of total thickness PMU this tread when new having a tread surface is provided and disclosed herein. The tread includes at least one cut opening in the initial condition onto the tread surface, this cut being such that it includes an external part having the form of a groove in the main direction, this groove having a mean depth Pe less than 80% of the thickness PMU, an internal part forming the bottom of the cut, this internal part having the shape of a channel of mean width Le and mean height He, this channel being intended to form a new continuous groove when the part wear of the tread reaches at most 80% of the thickness PMU.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: April 2, 2019
    Assignees: Compagnie Generale Des Etablissements Michelin, Michelin Recherche Et Technique, S.A.
    Inventors: Stephanie Cambon, Jonathan Lejeune, Damien Bardin
  • Patent number: 10239971
    Abstract: A heavy-duty vehicle tire comprising a tread consisting of a crosslinked rubber composition comprising a reinforcing filler of siliceous type and a synthetic polyisoprene modified by grafting with a compound comprising at least one group Q, and at least one group A, which are joined to one another by at least one and preferably one “spacer” group Sp, in which: Q comprises a dipole containing at least one and preferably one nitrogen atom, A comprises an associative group comprising at least one nitrogen atom, Sp is an atom or group of atoms forming a bond between Q and A. The heavy-duty vehicle tire according to the invention has a satisfactorily improved rolling resistance/wear resistance compromise.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: March 26, 2019
    Assignees: COMPAGNIE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE, S.A
    Inventors: Perrine Vallat, Etienne Fleury, Jose-Carlos Araujo Da Silva, Jean-Michel Favrot, Anne-Frederique Salit, Nicolas Seeboth
  • Patent number: 10239357
    Abstract: A tread and tire for a multipurpose agricultural machine, that improves field traction while ensuring a satisfactory compromise with wear under engine torque and vibratory comfort on the road having a tread having a plurality of lugs distributed in a first row extending axially from a first axial end of the tread and in a second row extending axially from a second axial end of the tread, the second row differing from the first row by a symmetry relative to the equatorial plane of the tire followed by a rotation about the rotation axis of the tire, each row having an alternation of long lugs and of short lugs. The axially inner end face of a first long lug of a row of lugs is separated from the trailing lateral face of the second long lug of the symmetrical row of lugs, closest to the axially inner end face of the first long lug, by an end groove with a width at least equal to 10% and at most equal to 100% of the lug height.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: March 26, 2019
    Assignees: Compagnie Generale Des Etablissements Michelin, Michelin Recherche Et Technique S.A.
    Inventors: Patrick Vervaet, Thierry Royer
  • Patent number: 10239249
    Abstract: An Extruder for shaping a viscous material such as a blend of rubber is disclosed herein. The extruder includes a screw rotationally driven about an axis (XX?) in a barrel and bearing one or more helical flights extending radially outwards from a central shaft of the screw, the extruder comprising a material homogenization zone (H) through which a screw portion comprising interrupted flight elements forming empty annular spaces extends axially, and a barrel portion delimiting the said homogenization zone bearing flight elements extending radially inwards into the said empty annular spaces. According to the disclosure, the barrel portion delimiting the homogenization zone is itself rotationally driven about the axis XX? to form a rotary barrel.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: March 26, 2019
    Assignees: Compagnie Generale Des Etablissements Michelin, Michelin Recherche Et Technique, S.A.
    Inventors: Fabien Vignon, Jean-Francois Lhospitalier
  • Patent number: 10239362
    Abstract: A tire made of rubbery material having a sidewall includes a pattern formed on this sidewall. The pattern has a plurality of protruding elements, with the protruding elements having the form of spherical-cap portions having a radius, and, within the pattern, each protruding element interpenetrates with several adjacent protruding elements so that the distance between a tip of the protruding element and a tip of another adjacent protruding element is less than the diameter of the protruding element.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: March 26, 2019
    Assignees: Compagnie Generale Des Etablissements Michelin, Michelin Recherche Et Technique, S.A.
    Inventor: Olivier Muhlhoff
  • Patent number: 10239270
    Abstract: A mold for a tire is disclosed herein. The mold includes first and second shells mold-able to lateral sidewalls of the tire, and a plurality of sectors that are distributed in the circumferential direction and are mold-able to the tread of said tire. The sectors are radially movable between an open position and a closed position of the mold. The mold also comprises at least one spacing interposed between each sector and each shell in order to keep said sector and the shells spaced apart in the radial direction in the closed position of the mold, such that the shells and the sectors are in contact in the radial direction only by way of the spacing. The spacing is also able to limit the heat transfer between the shells and the sectors in said closed position.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: March 26, 2019
    Assignees: Compagnie Generale Des Etablissements Michelin, Michelin Recherche Et Technique, S.A.
    Inventors: Mickael Massoptier-David, Thomas Simonelli, Gilles Walrand
  • Patent number: 10232602
    Abstract: Method for fabricating a three-dimensional object by successive consolidation, layer by layer, of selected regions of a layer of powder, consolidated regions corresponding to successive sections of the three-dimensional object, comprising in order: a—deposit layer of powder onto a support; b—fuse the layer of powder by a first laser energy source so as to obtain a fused layer corresponding to the section of the object and exhibiting a first state of its mechanical properties, c—heat at least a part of the fused layer by a second electron beam energy source to a temperature which follows a controlled variation over time so as to modify the first state of the fused layer and to obtain a consolidated layer with improved mechanical properties, d—repeat the preceding steps until several superposed consolidated layers are formed with improved properties forming the object.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: March 19, 2019
    Assignees: Compagnie Generale Des Etablissements Michelin, Michelin Recherche Et Technique S.A.
    Inventors: Christophe Bessac, Stephanie Verleene, Frederic Pialot, Gilles Walrand
  • Patent number: 10233312
    Abstract: A modified diene elastomer comprises: at least 55% by weight of entity coupled by a functional group bearing a function of formula —SiOR, in which R is a hydrogen atom or an alkyl radical, and optionally bearing another function capable of interacting with a reinforcing filler, from 5% by weight to 30% by weight of star-branched entity having three elastomeric branches connected to one and the same silicon atom belonging to a functional group bearing or not bearing a function capable of interacting with a reinforcing filler, less than or equal to 15% by weight of entity functionalized at the chain end by a functional group bearing a function —Si(OR)2, in which R is a hydrogen atom or an alkyl radical, and optionally bearing another function capable of interacting with a reinforcing filler, and a content of less than or equal to 15% by weight of non-functional diene elastomer.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: March 19, 2019
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE, S.A.
    Inventors: Charlotte Dire, Jean-Marc Marechal, Margarita Dorato, Mathieu Manceau, Nuno Pacheco
  • Patent number: 10232671
    Abstract: A tire tread comprising at least one groove that is delimited by two opposing walls that are connected by a groove bottom. The groove has a width and a depth and at least one resonance-noise-reducing device. The device is formed of at least one blade that is fixed to one of the walls delimiting the groove or to the groove bottom and at least partially closes the cross section of the groove. The each flexible blade comprises two main walls which close the cross section of the groove. End walls delimit the main walls and a connecting wall connecting to the tread. Each blade further comprises at least one raised rib on at least one of its main walls, and the raised rib starts from the wall or the bottom bearing the blade and extends over at least 50% of the length of the flexible blade.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: March 19, 2019
    Assignees: Compagnie Generale Des Etablissements Michelin, Michelin Recherche Et Technique, S.A.
    Inventors: Frederic Bourgeois, Francois-Xavier Bruneau, Olivier Muhlhoff
  • Patent number: 10220654
    Abstract: A tire for an aeroplane and, in particular, to the crown of a tire for an aeroplane, having reduced dimensions and mass of the pieces of tread in the event of accidental tire tread separation, without the use of additional devices external to the tire and therefore without penalizing the payload of the aeroplane, including a tread intended to come into contact with the ground via a tread surface and comprised radially between a bottom surface and the tread surface, the tread comprising at least two circumferential ribs adjacent to at least one circumferential groove, each circumferential rib extending radially between the bottom surface and the tread surface and axially between two edge corners in the tread surface, and a crown reinforcement radially on the inside of the bottom surface, wherein a tread separation layer is arranged radially on the inside of at least one circumferential rib between the bottom surface and the crown reinforcement, axially between the two edge corners of the said circumferential r
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: March 5, 2019
    Assignees: Compagnie Generale Des Etablissements Michelin, Michelin Recherche Et Technique, S.A.
    Inventors: Francois Chambriard, Gilles Roche
  • Patent number: 10214638
    Abstract: The disclosure relates to a rubber composition based on at least one styrene/butadiene copolymer SBR, the SBR having a content of greater than or equal to 50 parts per hundred parts of elastomer, phr, a reinforcing filler comprising predominantly carbon black with a CTAB specific surface area of greater than or equal to 90 m2/g, wherein the composition comprises an aromatic dicyclopentadiene plasticizing resin comprising essentially styrene, ethylene and dicyclopentadiene units, at a content ranging from 2 to 40 phr, the composition containing less than 5 phr of another plasticizer.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: February 26, 2019
    Assignees: Compagnie Generale Des Etablissements Michelin, Michelin Recherche Et Technique, S.A.
    Inventors: Cecile Belin, Olivier Goncalves
  • Patent number: 10189914
    Abstract: The invention relates to a modified diene elastomer comprising predominantly the entity functionalized in the middle of the chain by a silanol group, the silicon atom of which bonds the two pieces of the chain, the chain ends of the modified diene elastomer being functionalized to at least 70 mol %, with respect to the number of moles of chain end, by an amine functional group.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: January 29, 2019
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventors: Charlotte Dire, Jean-Marc Marechal, Nicolas Seeboth
  • Patent number: 10179827
    Abstract: A method for synthesizing a modified polymer comprising epoxide groups along the polymer chain, by a hydrosilylation reaction of the unsaturations with a hydrosilane bearing an epoxide function in the presence of a suitable catalyst is provided. The method is simple, reproducible and able to be used on an industrial scale, and makes it possible to obtain high grafting yields, since they may reach 100%.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: January 15, 2019
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE, S.A.
    Inventor: Rachid Matmour
  • Publication number: 20190001754
    Abstract: The disclosure is related to a tread for a tire, this tread having a tread surface intended to come into contact with a roadway and comprising at least one groove of width W and depth P delimited by two facing lateral walls, these lateral walls being connected together by a groove bottom. At least one groove has a plurality of closing devices for reducing the running resonance noise generated by this groove, each closing device comprising at least two sets of flexible blades, a first set is connected to the bottom of the groove and is intended to flex around a first axis, and at least one second set connected to a lateral wall delimiting the groove, this second set being intended to flex around a second axis, this second axis being different than the first axis.
    Type: Application
    Filed: December 11, 2015
    Publication date: January 3, 2019
    Applicants: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE, S.A.
    Inventor: Gael ROTY
  • Patent number: 10166818
    Abstract: A snow tire tread having a plurality of blocks separated by grooves and provided with sipe incisions dividing into several parts from a certain depth onwards, (complex sipes each having, when viewed in cross section, a rectilinear first part extending radially from the tread surface of the tread, and a second part extending the first part and comprising at least two branches each having an end. The tread has cavities each extending between the branches of a complex sipe and having a bottom situated at the same level as the ends of the branches. The cavities and the grooves of the tread are configured so that this tread has a voids surface ratio at the end of wear greater than or equal to 35%. Furthermore, the distance (D) between two branches of two adjacent complex sipes is at least equal to 2 mm.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: January 1, 2019
    Assignees: Compagnie Generale Des Etablissements Michelin, Michelin Recherche Et Technique, S.A.
    Inventors: Vincent Ledieu, Bertrand Fraenkel, Illyes Batnini, Marie-Helene Vantal
  • Publication number: 20180372589
    Abstract: A device for measuring a field of pressures exerted by a tire in the area of the measurement surface with which it is in contact, the device including a flat support and a sensor for measuring the field of pressures, which sensor is arranged on the support. The device includes at least one sheet (“protective sheet”) of a thickness less than 1 mm, and made from a material able to withstand forces generated in its plane, greater than or equal to 1000 N and less than or equal to 10 000 N, the sheet being arranged over the measurement sensor so as to be in contact therewith and to be immobilized with respect thereto, the sheet being prestressed so as to be stretched over the sensor.
    Type: Application
    Filed: December 20, 2016
    Publication date: December 27, 2018
    Applicant: MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventors: THIBAUT ANSOUD, FLORIAN BREMOND, JOSÉ APARICIO, RÉMI REYNAL DE ST-MICHEL