Patents Assigned to Societe de Technologie Michelin
  • Publication number: 20120277359
    Abstract: Tire component which is not in contact with air or with an inflation gas, comprising a rubber composition based on (a) an elastomeric matrix based on natural rubber, (b) a reinforcing filler, (c) from more than 2.5 to 8.5 phr of sulphur and (d) a dihydrazide compound corresponding to the following formula: in which R is a divalent hydrocarbon radical chosen from substituted or unsubstituted aromatic radicals having 6 to 20 carbon atoms, linear or branched, saturated or unsaturated, aliphatic radicals having 2 to 20 carbon atoms, and n is equal to 0 or 1. These tire components are more particularly those which comprise thread-like reinforcing elements, more especially metallic thread-like reinforcing elements, such as the carcass or crown plies of the tire.
    Type: Application
    Filed: December 22, 2009
    Publication date: November 1, 2012
    Applicants: Michelin Recherche et Technique S.A., Societe De Technologie Michelin
    Inventors: Julien Thuilliez, Stephanie De Landtsheer, Brigitte Chauvin
  • Publication number: 20120270966
    Abstract: Reinforced rubber composition based on at least (a) an elastomeric matrix predominantly based on natural rubber, (b) a reinforcing filler predominantly based on an inorganic filler, (c) a coupling agent and (d) a dihydrazide compound corresponding to the following formula I: in which R is a divalent hydrocarbon radical chosen from aromatic radicals having from 6 to 20 carbon atoms or saturated or unsaturated aliphatic radicals having from 2 to 20 carbon atoms and n has the value 0 or 1. This rubber composition is intended, for example, for the manufacture of a semi-finished rubber product intended for the tires of motor vehicles.
    Type: Application
    Filed: December 22, 2009
    Publication date: October 25, 2012
    Applicants: Michelin Recherche et Technique S.A., Societe De Technologie Michelin
    Inventors: Julien Thuilliez, Stephanie De Landtsheer, Brigitte Chauvin
  • Publication number: 20120261046
    Abstract: A tire having a radial carcass reinforcement, comprising at least one layer of metal reinforcing elements, said tire comprising a crown reinforcement, which is itself covered radially with a tread, said tread being joined to two beads via two sidewalls. The metal reinforcing elements of at least one layer of the carcass reinforcement are non-hooped cords having, in the permeability test, a flow rate of less than 20 cm3/min and, in a radial plane, at least over part of the meridian profile of the tire, the thickness of the rubber compound between the inner surface of the cavity of the tire and that point of a metal reinforcing element of the carcass reinforcement which is closest to said inner surface of the cavity is less than or equal to 3.
    Type: Application
    Filed: October 5, 2010
    Publication date: October 18, 2012
    Applicants: Michelin Recherche et Technique S.A., Societe de Technologie Michelin
    Inventors: Alain Domingo, Christelle Chaulet
  • Publication number: 20120259043
    Abstract: The present invention relates to a rubber composition based on at least one elastomeric matrix comprising an epoxidized synthetic rubber (ESR) having an epoxy function content ranging from 7% to 25%, a reinforcing filler, of which at least 50% by weight of the reinforcing filler is constituted of an inorganic filler, and a plasticizing agent comprising a polar liquid plasticizer for the manufacture of a tyre tread having an improved compromise of properties: grip on wet ground/rolling resistance.
    Type: Application
    Filed: October 12, 2010
    Publication date: October 11, 2012
    Applicant: SOCIETE DE TECHNOLOGIE MICHELIN
    Inventors: Garance Lopitaux, Didier Vasseur, Franck Varagniat
  • Publication number: 20120252928
    Abstract: The present invention relates to a specific functionalized diene elastomer. This functionalized elastomer exhibits a reduced cold flow without, however, damaging the properties of a reinforced rubber composition in which it is present, in particular the processing properties and the hysteresis properties. This functionalized diene elastomer carries, at the chain end, a silanol functional group or a polysiloxane block having a silanol end and is partially coupled by or star-branched by tin.
    Type: Application
    Filed: October 7, 2010
    Publication date: October 4, 2012
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE, SOCIETE DE TECHNOLOGIE MICHELIN
    Inventors: Jean-Marc Marechal, Stéphanie De Landtsheer, Jean-Michel Favrot
  • Publication number: 20120245270
    Abstract: A reinforced rubber composition, used for the manufacture of treads of tyres, includes (a) a functionalized diene elastomer selected from elastomers that are chain-end functionalized, coupled, or star-branched by a group containing a polar functional group having at least one oxygen atom and block elastomers having at least one polar block, (b) glycerol, and (c) a reinforcing filler that includes an inorganic filler. The rubber composition may impart a low rolling resistance to the tyre treads.
    Type: Application
    Filed: September 13, 2010
    Publication date: September 27, 2012
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., SOCIETE DE TECHNOLOGIE MICHELIN
    Inventors: Christiane Blanchard, Didier Vasseur
  • Publication number: 20120234442
    Abstract: This invention relates generally to treads having a configuration and/or properties for improving or preventing irregular wear on the tread of a tire, and, more specifically, to a tire that has a tread with a gradient of properties that helps to prevent or improve irregular wear, especially suitable for tires that are free rolling such as steer or trailer tires used on trucks.
    Type: Application
    Filed: March 17, 2011
    Publication date: September 20, 2012
    Applicants: SOCIETE DE TECHNOLOGIE MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventor: Paul Andrew Mayni
  • Publication number: 20120234449
    Abstract: Pneumatic tyre with built-in self-sealing layer comprising an outer rubbery tread, a carcass reinforcement, a gastight layer positioned on the inside relative to the carcass reinforcement, a protective layer positioned innermost and a self-sealing layer adjacent to the protective layer and positioned on the inside relative to the gastight layer, characterized in that said protective layer is a chlorinated thermoplastic polymer film.
    Type: Application
    Filed: September 10, 2010
    Publication date: September 20, 2012
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., SOCIETE DE TECHNOLOGIE MICHELIN
    Inventors: Marc Greiveldinger, Jose Merino Lopez, Michel Ahouanto, Frédéric Pialot
  • Publication number: 20120239313
    Abstract: A pressure-measurement device includes a pressure-measurement surface, which is functionally connected to a test body, and a sealed pressure-measurement housing in which the test body is arranged. The pressure-measurement surface is carried by a deformable wall of the sealed pressure-measurement housing lying at a distance from the test body. The sealed pressure-measurement housing delimits an internal space, which is a space internal to the sealed housing. The pressure-measurement device also includes a pressure-transmission object that transmits the pressure between the pressure-measurement surface and the test body. The pressure-transmission object includes a substantially incompressible material occupying all of the internal space. The pressure-measurement device further includes an energy source and a processor for processing pressure data detected by the test body. The processor is arranged in the sealed pressure-measurement housing.
    Type: Application
    Filed: September 30, 2010
    Publication date: September 20, 2012
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., SOCIETE DE TECHNOLOGIE MICHELIN
    Inventors: Jonathan Champredonde, Richard Leman, Mark Leman, Peter Smith
  • Publication number: 20120227883
    Abstract: Tire tread having at least two wearing layers, provided with at least one continuous groove having in the as new condition a plurality of external cavities opening onto the tread surface and a plurality of internal cavities placed radially and completely inside the tread surface, such that: the difference between the mean lengths of the internal cavities and of the external cavities is at most equal to 20% of the longest mean length, the difference in the mean cross-sectional areas of the internal and external cavities is at most equal to 20% of the largest mean area, each external cavity of a continuous groove being connected to at least two internal cavities of the same groove and having a plurality of incisions opening onto the tread surface, each connecting two consecutive external cavities of the same groove and at least two connecting channels and at least one internal cavity.
    Type: Application
    Filed: September 28, 2010
    Publication date: September 13, 2012
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., SOCIETE DE TECHNOLOGIE MICHELIN
    Inventors: Richard Audigier, Stéphane Oraison, Mathieu Vandaele, Gilles Douet
  • Publication number: 20120228921
    Abstract: The invention relates to a system for motorizing a wheel (2), the system comprising a motor unit (4), a drive member (6) secured to the wheel (2) and a clutch device (7) connects the output shaft (8) of the motor unit (4) to the drive member (6). According to the invention, the motor unit (4) comprises an electric motor (11) and is carried by an unsprung part of a suspension strut (3) of an aircraft so that the latter can be made to move along the ground.
    Type: Application
    Filed: December 17, 2010
    Publication date: September 13, 2012
    Applicants: Michelin Recherche et Technique S.A., SOCIETE DE TECHNOLOGIE MICHELIN
    Inventors: Olivier Essinger, Cesare Stacchi
  • Patent number: 8262379
    Abstract: Device for manufacturing the tread of a tire, said tread comprising a plurality of relief tread elements of height h whose radially outer surface is designed to be in contact with the ground when the tire is rolling on the road surface, comprising a rotary support suitable for supporting a base strip (MB) forming a receiving surface (S), an extrusion die (1) comprising a plurality of extrusion nozzles whose outlet channels are oriented radially approximately perpendicular to the receiving surface (S), at least two compound supply means, each feeding into one or more separate extrusion nozzles, and means for positioning and moving the extrusion die relative to the receiving surface (S).
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: September 11, 2012
    Assignees: Michelin Recherche et Technique S.A., Societe de Technologie Michelin
    Inventors: Christian Beaudonnet, Rémi Braunt, Daniel Bresson, Thierry Orsat
  • Publication number: 20120216933
    Abstract: A method of repairing a tire includes providing a tire for repair having an exterior with a tread, a mounting bead, and a sidewall therebetween, an interior including an inner layer having a desired inner layer thickness, and an elastomeric underlying tire layer beneath the inner layer, the inner layer comprising a plurality of ridges extending outwardly a desired height from the inner layer surface generally defining a plurality of inner layer segments, a portion of the underlying tire layer extending outwardly along the ridges, and may extend at least to the depth of the inner layer surface.
    Type: Application
    Filed: February 28, 2011
    Publication date: August 30, 2012
    Applicants: Societe de Technologie Michelin, Michelin Recherche et Technique S.A.
    Inventors: Metodi L. Ikonomov, Cesar E. Zarak
  • Publication number: 20120217340
    Abstract: The invention relates to a motorizing system for powering a wheel (5) associated with a suspension, the system comprising a motor unit (3) and a drive member (4) secured to the wheel (5). According to the invention, the motor unit is secured to the sprung part of the suspension strut (2) and a clutch device (6) connects the output shaft (7) of the motor unit (3) to the drive member (4).
    Type: Application
    Filed: December 17, 2010
    Publication date: August 30, 2012
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., SOCIETE DE TECHNOLOGIE MICHELIN
    Inventors: Olivier Essinger, Cesare Stacchi
  • Publication number: 20120211140
    Abstract: Tyre (10) for a heavy goods vehicle comprising a radial carcass reinforcement (60) anchored in each of the beads (50) to an anchoring structure (700), comprising a circumferential reinforcement (70), the carcass reinforcement (60) being partially wrapped around the anchoring structure (700), the tyre (10) also comprising a coupling reinforcement (150) comprising a first part (151) in contact with the carcass reinforcement (60) and being extended by a second part (152) in contact with the anchoring structure (700) as far as a point (157) radially on the outside of the anchoring structure (700), located axially between the axially inner-most point (702) and the axially outermost point (704) of the anchoring structure (700), the tyre (10) also comprising a stiffening reinforcement (160) surrounding the coupling reinforcement (150) and running radially on the inside of the anchoring structure (700) and of the coupling reinforcement (150), in which the axially outside end point (166) of said stiffening reinforceme
    Type: Application
    Filed: July 27, 2010
    Publication date: August 23, 2012
    Applicants: Michelin Recherche et Technique S.A., SOCIETE DE TECHNOLOGIE MICHELIN
    Inventors: Philippe Johnson, Bopha Grisin, Olivier Lenepveu
  • Patent number: D666966
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: September 11, 2012
    Assignees: Societe de Technologie Michelin, Michelin Recherche et TEchnique S.A.
    Inventors: Dominique Chauvin, Arnaud Larregain
  • Patent number: D667777
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: September 25, 2012
    Assignees: Societe de Technologie Michelin, Michelin Recherche et Technique S.A.
    Inventors: Nicolas Jamot, Sébastien Fugier, Arnaud Frappart
  • Patent number: D668202
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: October 2, 2012
    Assignees: Societe de Technologie Michelin, Michelin Recherche et Technique S.A.
    Inventors: Matthieu Bonnamour, Nicolas Grolier, Thierry Kyndt
  • Patent number: D669021
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: October 16, 2012
    Assignees: Societe de Technologie Michelin, Michelin Recherche et Technique S.A.
    Inventors: Daniel Cano, Sébastien Fugier, Arnaud Frappart
  • Patent number: D669416
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: October 23, 2012
    Assignees: Societe de Technologie Michelin, Michelin Recherche et Technique S.A.
    Inventors: Daniel Cano, Sébastien Fugier, Arnaud Frappart