Patents Assigned to Compagnie Generale des Etablissements Michelin
  • Patent number: 11364667
    Abstract: An installation for producing a profiled band based on several mixtures of elastomers of a different composition by means of coextrusion. The installation includes at least two extruders for supplying a mixture of elastomers to an extrusion head. The extrusion head comprises an assembly of at least two plates which are arranged side by side. Each plate having at least one cavity which enables the mixture from an extruder to be chaneled towards an outlet hole. The plates are arranged substantially transversely relative to the output direction of the mixture flows of the extruders in order to produce a discharge at approximately 90° of the mixture flow at the outlet of the screw of each extruder.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: June 21, 2022
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Christophe Ougier, Arnaud Letocart
  • Patent number: 11365308
    Abstract: A rubber composition is based on at least one elastomer, a reinforcing filler, a crosslinking system and an optionally hydrogenated hydrocarbon-based resin, predominantly composed of units selected from the group consisting of cyclopentadiene, dicyclopentadiene, methylcyclopentadiene and mixtures thereof, said hydrocarbon-based resin having an average molecular weight Mz of less than 2000 g/mol and a glass transition temperature Tg, expressed in ° C., such that: Tg?80?2*(% HA), wherein % HA represents the content of aromatic protons of said resin, the content of said hydrocarbon-based resin being within a range extending from 15 to 150 phr.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: June 21, 2022
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Benoit De Gaudemaris, Alain Hut
  • Patent number: 11358414
    Abstract: A tire has a sub-layer (7) made up substantially of a first base layer (71) disposed radially on the crown reinforcement (5) and axially between the median plane (CP) and a transition edge (711), the transition edge (711) being situated axially between the median plane (CP) and a shoulder (60), said first base layer (71) being made up of a rubber compound of given stiffness A, a second base layer (72) disposed radially on the crown reinforcement (5) and axially between the transition edge (711) and a shoulder end (721), said second base layer (72) being made up of a rubber compound of given stiffness B, a covering layer (73) disposed radially on the first base layer (71) and on the second base layer (72) and radially on the inside of the tread (6) and axially at least in sections situated between the median plane (CP) and the shoulder end (721), said covering layer (73) being made up of a rubber compound of given stiffness C, the stiffness B being less than the stiffness A, which is less than the stiffness C,
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: June 14, 2022
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Pascal Prost, Christopher Careme, David Dean
  • Patent number: 11359956
    Abstract: A method, for evaluating the variation in the dynamic load borne by a tire comprising a front axle and a rear axle, comprises steps during which: the pressure of the air contained inside the tire is measured, a difference in load borne by the tire is determined as a function of the transfer of the total load of the vehicle between axles and of the position of the tire on the vehicle and, using a tire model that is preestablished, a pressure differential is determined, a corrected pressure value is determined, on the basis of the corrected pressure values, a reference pressure is determined, and the difference between the measured pressure in the reference pressure is calculated, and the variation in dynamic load borne by the tire is determined on the basis of the model of the tire.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: June 14, 2022
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventor: Vincent Lemineur
  • Patent number: 11359077
    Abstract: A tire has an outer sidewall, said outer sidewall comprising at least one composition based on an elastomeric matrix comprising: one or more thermoplastic elastomers comprising at least one elastomer block and at least one thermoplastic block, the elastomer block(s) not denoting one or more polyisobutylene blocks; and one or more synthetic diene elastomers selected from butadiene polymers having a glass transition temperature of less than or equal to ?50° C.; said composition comprising at least one crosslinking system and one or more reinforcing fillers.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: June 14, 2022
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventor: Christophe Chouvel
  • Patent number: 11358357
    Abstract: A molding element having a molding surface forming a contact face and a groove forming rib portion forming the groove comprising two opposed rib side faces and a rib top face connecting two rib side faces. The groove forming rib portion provides at least one space opening to at least one of the rib side faces and/or to the rib top face. An insert is received in the space. The insert comprises a cavity for forming a closing device in the groove. The cavity has two opposed cavity faces and opens to at least two faces of the insert corresponding to the faces of the groove forming rib portion. The insert comprises at least one cutting means extending and/or projecting in a direction the groove forming rib portion extends for cutting a material filled in the cavity during demolding.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: June 14, 2022
    Assignee: Compagnie Generale Des Etablissements Michelin
    Inventors: Anthony Gueugneau, Romain Calvel, Bernard Villeneuve, Khotchakorn Pengsaloong
  • Patent number: 11352459
    Abstract: A tire has an outer sidewall, said outer sidewall comprising at least one composition comprising an elastomeric matrix which predominantly comprises by weight one or more thermoplastic elastomers comprising at least one elastomer block and at least one thermoplastic block, the elastomer block(s) being saturated.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: June 7, 2022
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Emmanuel Custodero, Baptiste Foglieni, Christophe Chouvel
  • Patent number: 11351700
    Abstract: In the field of tire production, systems and methods make it possible to selectively carry out monopassage and multipassage rubber production sequences in a common rubber production facility. A tire is formed according to the methods described.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: June 7, 2022
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Lionel Le-Bars, Stephane Bornes, Stephan Otto, Claude Thiallier
  • Patent number: 11352484
    Abstract: A rubber composition is based on at least: a diene elastomer; a reinforcing inorganic filler; an agent for coupling the reinforcing inorganic filler with the diene elastomer, said coupling agent being an organofunctional silane comprising at least one oligomer of general formula (I), as described in the claims, bearing at least one blocked mercaptosilane unit and at least one mercaptosilane unit, a hydrocarbon-based resin predominantly composed of monomers chosen from the group consisting of cyclopentadiene, dicyclopentadiene, methylcyclopentadiene and mixtures thereof, and a crosslinking system. A semi-finished article and a tire may comprise at least one such rubber composition.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: June 7, 2022
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Laurent Copey, Karine Longchambon
  • Patent number: 11345104
    Abstract: An assembly (1) of moulding elements for moulding cuts in a tread of a tire comprises a first sipe blade (2), a second sipe blade (3) and means for assembling the first sipe blade (2) with the second sipe blade (3). The assembly means comprise at least one slot (20) in the thickness of the first sipe blade (2), said first sipe blade (2) having no additional thickness at said slot (20) and a protuberance (30) in the continuation of the second sipe blade (3), said protuberance (30) being able to be inserted into the slot (20). This assembly system is both simple to produce and allows a multitude of configurations of the sipe blades relative to one another.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: May 31, 2022
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventor: Frederic Massis
  • Patent number: 11345107
    Abstract: A tread for bonding to a tire carcass to form a retreaded tire having a length, a width, a top side and a bottom side. The tread also includes a central portion and a pair of wing portions extending laterally from the central portions. The top sides of each wing portion include one or more discontinuities having a longitudinal component and configured to resist deflection when subjected to a force from the bottom side and to deflect downwardly when subjected to a force from the top side. In particular embodiments, the one or more discontinuities are arranged within each wing portion are arranged within a thickened portion of each wing portion.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: May 31, 2022
    Assignee: Compagnie Generale des Etablissements Michelin
    Inventors: Dimitri Tsihlas, E. Bruce Colby, Cesar E. Zarak, Michael Widmyer
  • Patent number: 11346049
    Abstract: A two-layer multi-strand cord (60) comprises an internal layer (CI) of the cord made up of J>1 internal strands (TI) and an external layer (CE) of the cord made up of L>1 external strands (TE). The cord satisfies the relationship 95?MC?175, where MC=(J×MI+L×ME)/(J+L); MI=200×cos4(?)×[Q×(D1/2)2×cos4(?)+P×(D2/2)2×cos4(?)+N×(D3/2)2×cos4(?)]/[Q×(D1/2)2+P×(D2/2)2+N×(D3/2)2]; and ME=200×cos4(??)×[Q?×(D1?/2)2×cos4(??)+N?×(D2?/2)2×cos4(??)]/[Q?×(D1?/2)2+N?×(D2?/2)2], where D1, D1?, D2, D2?, and D3 are in mm, ? and ?? are the helix angle of each internal and external strand (TI), ? and ?? are the helix angle of each internal thread (F1, F1?), ? is the helix angle of each intermediate thread (F2) and ? and ?? are the helix angle of each external thread (F3, F2?).
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: May 31, 2022
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Emmanuel Clement, Romain Barbat, Marianna Chevalley, Alexandre Gianetti, Stephane Laurent
  • Patent number: 11345795
    Abstract: A cup lump natural rubber devoid of impurities with a size of greater than 0.5 mm and having a plasticity retention index of greater than 80 is provided. The use of such a natural rubber in a line for manufacturing a semi-finished product based on natural rubber makes it possible to ensure an improved compromise of performances which are the productivity of a line for manufacturing semi-finished products and the quality of the semi-finished products resulting from this production line.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: May 31, 2022
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Françoise Granet, Denis Bernard, Jérôme Dussillols
  • Patent number: 11345103
    Abstract: The present invention relates to a set of mould elements comprising main blades and secondary blades, intended to be added to a mould for vulcanizing a tread of a tire, the mould elements being capable of moulding cuts in the tread, characterized in that a main blade comprises at least one assembly device for assembling a secondary blade, the assembly device comprising two series of at least one protrusion arranged facing one another. It is thus possible to ensure a relative positioning and an assembly that can withstand mechanical stresses over the entire height of the blade during moulding/demoulding, while minimizing the volume of material added. This assembly is barely visible on the tire.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: May 31, 2022
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Pierre Chigros, Damien Bardin
  • Patent number: 11338618
    Abstract: The present invention includes tire treads having a plurality of sipes (14) where at least one of the opposing sides of the sipe thickness includes a plurality of projections (18, 36) and recesses (20, 38) and a method for forming the same.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: May 24, 2022
    Assignee: Compagnie Generale des Etablissements Michelin
    Inventors: Sadi Kose, Robert Cecil Lawson
  • Patent number: 11331953
    Abstract: The assembly (24) comprises: a woven first fabric (26) comprising filamentary warp elements (64) comprising first and second filamentary members, a woven second fabric (28), a bearing structure (30) comprising filamentary bearing elements (32) connecting the woven first and second fabrics together. For a length at rest L of the woven first fabric (26): for any elongation of the woven first fabric (26) less than or equal to (2?×H)/L, the first filamentary member has a non-zero elongation and is not broken; there is an elongation of the woven first fabric (26), less than or equal to (2?×H)/L, and beyond which the second filamentary member is broken, in which H0×K?H where H0 is the distance between the woven first and second fabrics (26, 28) when each filamentary bearing portion (74) is at rest, and K=0.50.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: May 17, 2022
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Sébastien Rigo, Richard Cornille, Gregor Hug, Bastien Limozin, Florian Vilcot
  • Patent number: 11331948
    Abstract: A radial tire (10) for a heavy vehicle of construction plant type, and more particularly, the sidewalls thereof (20), arranged to minimize the temperature of the tire while guaranteeing its electrical conductivity. The tread (30) comprises two tread wings (31) and a central portion (32). The bead layer (71), the elastomeric coating compound of the carcass layer (50), the second sidewall layer (22) and the tread wing (31) constitute a preferential conductive pathway of the electric charges between the rim and the ground when the tire is mounted on its rim and flattened on the ground.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: May 17, 2022
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Christophe Lemarchand, Cécile Roussel, Cécile Belin, Thierry Royer
  • Patent number: 11331951
    Abstract: A spoke (100) for a tire attaching an outer tread to a hub, the spoke (100) having first and second spoke elements (142, 144) possessing spoke element reinforcements, the spoke elements (142, 144) joined by a joint body (130) comprised of an elastomer connecting the first spoke element (142) to the second spoke element (144) and a reinforcement membrane (132) extending from the first spoke element (142) to the second spoke element (144) and having a first end (172) and a second end (170) and a middle portion (174), the first end (172) lying closer to the first spoke element reinforcements than the middle portion (174) and the second end (170) lying closer to the second spoke element reinforcements than the middle portion (174) of the spoke reinforcement membrane (132).
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: May 17, 2022
    Assignee: Compagnie Generale des Etablissements Michelin
    Inventors: Steven M Cron, Ryan Michael Gaylo
  • Patent number: 11332853
    Abstract: The method for producing a wire element by interlacing at least a first strand and a second strand, during which strand tension control is effected by includes defining an assembly tension set point representative of a state of longitudinal tension to be obtained in the first strand when said first strand reaches the assembly point. The method also includes measuring the actual assembly tension applied in the first strand, said measurement being taken at a first tension measurement point located along the first strand and upstream of the assembly point. The method proceeds with operating a tension regulating member such as a capstan, which acts on the first strand upstream of the assembly point such as to cause the actual assembly tension within said first strand to converge automatically towards the assembly tension set point.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: May 17, 2022
    Assignee: Compagnie Generalé Des Etablissements Michelin
    Inventors: Richard Cornille, Christophe Hombert, Francis Aubarede
  • Patent number: D954633
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: June 14, 2022
    Assignee: Compagnie Generale des Etablissements Michelin
    Inventors: Michele Loesch, Philip Blair Webb, Karl Koenigstein, Kyle Danner