Patents Assigned to Michelin & Cie
  • Rubber composition for tire casings based on silicas containing a reinforcing additive based on a functionalized polyorganosiloxane and on an organosilane compound
    Patent number: 6140393
    Abstract: Rubber composition intended for the manufacture of tire casings which have mproved hysteretic properties and scorch safety, based on at least one elastomer and silica by way of reinforcing filler enclosing a reinforcing additive consisting of the mixture and/or the product of in situ reaction of at least one functionalized polyorganosiloxane compound containing, per molecule, at least one functional siloxy unit capable of bonding chemically and/or physically to the surface hydroxyl sites of the silica particles and at least one functionalized organosilane compound containing, per molecule, at least one functional group capable of bonding chemically and/or physically to the polyorganosiloxane and/or the hydroxyl sites of the silica particles and at least one other functional group capable of bonding chemically and/or physically to the polymer chains.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: October 31, 2000
    Assignee: Campagnie Generale des Etablissements Michelin-Michelin & Cie
    Inventors: Yves Bomal, Olivier Durel
  • Method and machine for mounting tires
    Patent number: 6138737
    Abstract: A method and machine for mounting tires, bead by bead, in which, after hag partially set a first bead in place in the groove of a wheel rim, that mounting of the first bead of the tire is completed by means of a rotation of the wheel and tire assembly against a mounting roller.
    Type: Grant
    Filed: May 24, 1999
    Date of Patent: October 31, 2000
    Assignee: Compagnie Generale des Etablissements Michelin - Michelin & Cie
    Inventors: Jean-Louis Bocquet, Alain Carreau, Denis Meloux
  • Device for producing at least a portion of a tire mold comprising at least one element molding a non-removable motif
    Patent number: 6138982
    Abstract: A device for making a mold for molding at least a portion of a tread of a re using a countermold and a pourable, solidifiable material. Molding elements are transferred from the countermold and imbedded in the tire tread mold in protruding fashion by placing each molding element in a housing of the countermold before the actual molding of the tire tread mold and in such a manner as to permit easy transfer from the countermold to the tire tread mold.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: October 31, 2000
    Assignee: Compagnie Generale des Etablissements Michelin-Michelin & Cie
    Inventor: Guy Bellot
  • Radial tire comprising a carcass ply with a notched lap weld
    Patent number: 6129129
    Abstract: A radial tire (10) having at least one belt enforcement (13) and one carc reinforcement (14) with at least one ply (20) of rubberized fabric (24) having radial threads (25) essentially parallel to the radial direction (xx'), the radial ply having at least one overlapping splice (21) formed by the overlapping of two edges (22, 23) of the said fabric (24) and being limited circumferentially by two borders (28,29), characterized in that the said splice (21), in each of the said edges (22, 23), has at least one cut (26, 27) located underneath the belt reinforcement (13) and splitting several radial threads (25). The tire according to the invention, compared with classical radial tires of the prior art, presents an external sidewall appearance that is clearly improved.
    Type: Grant
    Filed: September 3, 1998
    Date of Patent: October 10, 2000
    Assignee: Compagnie Generale des Etablissements Michelin - Michelin & Cie
    Inventors: Pierre Chandezon, Jean Billieres
  • Tire for airplane with crown reinforcement including at least one twin zig-zag ply
    Patent number: 6125900
    Abstract: A tire for an airplane has radial carcass reinforcement surmounted by a cn reinforcement composed of at least three plies of textile reinforcing elements, including at least one twin zig-zag ply of two zig-zag plies "guided" at an angle .alpha., abbreviated to NT.alpha..degree., and at least one other "guided" ply, wherein the crown reinforcement comprises, at least between one twin zig-zag ply and one of the other "guided" plies, a decoupling intermediate layer of thickness e forming a radial distance of at least 1.0 mm between the cords of the radially lower ply and the cords of the radially upper ply surrounding the intermediate layer, the intermediate layer being formed of textile reinforcing elements coated in a rubber compound whose secant modulus of elasticity, measured at a relative elongation of between 0.06 and 0.2, is between 5 and 9 MPa.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: October 3, 2000
    Assignee: Compagnie Generale des Establissements Michelin - Michelin & Cie
    Inventors: Pierre De Loze de Plaisance, deceased, by Marin De Loze de Plaisance, heir, by Yvan De Loze de Plaisance, heir, by Florent De Loze de Plaisance, heir, by Myriam De Loze de Plaisance, heiress
  • Tire with beads designed to ease removal from rim
    Patent number: 6116313
    Abstract: A tire in which the beads have a slip layer over part of their surface to make them slip more readily over the seats of the wheel rim upon removal after use and thus reduce the risk of damage.
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: September 12, 2000
    Assignee: Compagnie Generale des Etablissementis Michelin-Michelin & Cie
    Inventors: Pedro Costa Pereira, Jean-Jacques Pradelle
  • Tire carcass anchoring
    Patent number: 6109321
    Abstract: A tire having a crown, two sidewalls and two beads, a carcass casing anchd in the two beads and having cords worked back and forth next to each other aligned circumferentially with, in each bead, loops each connecting back and forth cord portions, and in each bead, carcass casing anchoring cords oriented circumferentially and axially bordering the circumferential rows of the back and forth arrangement of carcass casing cords, wherein the carcass casing consists of cords forming two or three circumferential rows separated, at least in the beads and the sidewalls, by a filler.
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: August 29, 2000
    Assignee: Compagnie Generale des Establissements Michelin-Michelin & Cie
    Inventors: Pedro Costa Pereira, Yves Herbelleau
  • Ready-to-use metal wire and method for producing same
    Patent number: 6106637
    Abstract: A ready-to-use metal wire comprising microalloyed steel with a structure almost entirely made up of a cold-hammered annealed martensite is disclosed. The wire diameter is of at least 0.10 mm and at most 0.50 mm, and the ultimate tensile strength of the wire is of at least 2800 MPa. The method of producing said wire comprises deforming a wire rod, performing a hardening heat treatment on the deformed wire and heating it to an annealing temperature to cause the formation of a structure almost entirely made up of annealed martensite. The wire is then cooled and deformed. Assemblies comprising at least one such wire, and wire or assemblies used in particular for reinforcing pneumatic tires, are also disclosed.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: August 22, 2000
    Assignee: Michelin & Cie
    Inventors: Jean-Claude Arnaud, Eric Depraetere, Marc Francois, Raoul Serre
  • Process and devices for detection of the actuation of support of a tire on a safety bearing
    Patent number: 6094978
    Abstract: Process and devices for detection of the actuation of support of a tire on safety support, the process and these devices being characterized by the fact that, when support actuation occurs, they detect the appearance of a resonance mode characteristic of supported rolling travel in the components of the vehicle suspension.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: August 1, 2000
    Assignee: Compagnie Generale des Etablissements Michelin-Michelin & Cie
    Inventors: Claudio Battocchio, Andre Dosjoub
  • Rim and assembly of tire and ring-shaped tread support on same
    Patent number: 6092575
    Abstract: A tire (1), a mounting rim (2) therefor and a circumferentially unstretchable ring (3) for supporting the tread (10) of the tire when running at low or zero pressure. The tire (1) has a radial ply casing (13) on which the points that are furthest apart axially are radially apart close to seats (12B) of outwardly sloping beads (12). The seats (12B) engage sloping seats (23', 23") on the rim (2), which may have at least one mounting well (22), at least one cylindrical portion (21) for receiving the supporting ring (3) and a rim flange (24).
    Type: Grant
    Filed: January 22, 1997
    Date of Patent: July 25, 2000
    Assignee: Compagnie Generale des Etablissements Michelin - Michelin & Cie
    Inventors: Jean-Jacques Drieux, Jean-Charles Lacour, Olivier Muhlhoff, Jean-Pierre Pompier
  • Crown reinforcement for a tire
    Patent number: 6082426
    Abstract: A tire with radial carcass reinforcement 1, having a crown reinforcement 3 aving at least two working crown plies 32, 34 made of inextensible cables, crossed from one ply to the other and forming angles of between 10.degree. and 45.degree. with the circumferential direction, characterized in that in the absence of any ply formed of inextensible cables forming an angle greater than 45.degree. with the circumferential direction, an additional, axially continuous, ply 33 formed of metallic elements oriented substantially parallel to the circumferential direction, is placed radially between the working plies 32, 34, having an axial width L.sub.33 at least equal to 1.05 times the axial width of the widest working crown ply L.sub.32, L.sub.34.
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: July 4, 2000
    Assignee: Compagnie Generale des Etablissements Michelin - Michelin & Cie
    Inventor: Andre Colom
  • Precise adjustment of MacPherson strut: adjustment means on the strut and measuring bench
    Patent number: 6082720
    Abstract: The strut comprises a ball bearing (42) located below the lower retainer ) of the spring (4). The ball bearing (42) is centered on an eccentric collar (27) in order to shift the center of the ball bearing (42) by a distance e from the axis of the shock absorber. Rotation between the body (2) of the shock absorber and the hub holder (5) displaces the center of the ball bearing (42), which shifts the lower retainer (41) accordingly. Using a suitable measuring bench, the strut is adjusted precisely upon the assembling thereof.
    Type: Grant
    Filed: June 8, 1999
    Date of Patent: July 4, 2000
    Assignee: Compagnie Generale Des Etablissements Michelin - Michelin & Cie
    Inventors: Antoine Ducloux, Jack Faure, Jacques Foulquier, Thierry Orsat
  • Crown reinforcement for a heavy vehicle tire
    Patent number: 6082425
    Abstract: A tire having an Heterologous/S form ratio of at least 0.50, having a rad carcass reinforcement (1) and crown reinforcement (3) composed of at least two working crown plies (31,33) made of inextensible metal cables, crossed from one ply to the next, forming angles of between 10.degree. and 45.degree. with the circumferentail direction, and of an additional ply (32) which is axially continuous and formed of metallic elements oriented substantially parallel circumferential direction. Said ply (32) over the working ply (31) radially closest carcass reinforcement (1,) and the ratio of its rigidity of extension per unit of width to the total of the rigidities of extension of the other plies of the crown reinforcement being between 0.35 and 0.70.
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: July 4, 2000
    Assignee: Compagnie Generale des Etalissements Michelin - Michelin & Cie
    Inventor: Andre Colom
  • Decal for vulcanized tires and method of obtaining a tire having a colored motif
    Patent number: 6080465
    Abstract: A method for obtaining a tire comprising a colored motif and a decal inted to be applied to the outer surface of a vulcanized rubber tire. The decal is made of a thin sheet serving as temporary support for a motif made with one or more vulcanizable colored inks. The support has at least one cutout having a shape adapted to permit the fitting therein of at least one element in relief protruding from the surface of a tire at the place selected for the colored motif.
    Type: Grant
    Filed: January 26, 1999
    Date of Patent: June 27, 2000
    Assignee: Compagnie Generale des Etablissements Michelin - Michelin & Cie
    Inventors: Monique Boissonnet, Jean-Michel Tatraux-Paro
  • Flexible axle embodying a crosspiece and trailing arms
    Patent number: 6074016
    Abstract: An axle comprises having a crossmember coupling two arms, each arm carrying a stub axle for receiving a wheel, the crossmember being formed essentiy by two coaxial half-crossmembers partially inserted into each other. Resilient rings non-slidingly integral with each of the half-crossmembers and axially spaced from each other ensure the relative torsional stress transmission between the half-crossmembers. The crossmember is not aligned with the pivot axis of the arms on the body.
    Type: Grant
    Filed: December 10, 1998
    Date of Patent: June 13, 2000
    Assignee: Compagnie Generale des Etablissements Michelin--Michelin & Cie
    Inventors: Michel Blondelet, Jacques Foulquier
  • Sound absorbing wheel
    Patent number: 6074015
    Abstract: A rim and disk type wheel which is mechanically reinforced to raise the fuencies of several of the vibration modes of the wheel to attenuate the running noises heard in the passenger space.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: June 13, 2000
    Assignee: Compagnie General des Etablisse-ments Michelin-Michelin & Cie
    Inventors: Etienne Renard, Myriam Peyronne
  • Rubber composition based on carbon black having silica fixed to its surface and on diene polymer functionalized or modified with silanol functions
    Patent number: 6071995
    Abstract: A rubber composition of improved hysteretic and physical properties which make it suitable for forming a tire tread, notably a tire tread of reduced rolling resistance, the rubber composition including carbon black having silica fixed to its surface as the majority portion of reinforcing filler and at least one functionalized diene polymer having at the end of its chain a silanol function or a polysiloxane block including a silanol end or a diene polymer modified along its chain by silanol functions.
    Type: Grant
    Filed: May 6, 1998
    Date of Patent: June 6, 2000
    Assignee: Michelin & Cie
    Inventor: Gerard Labauze
  • Manufacture of carcass reinforcement for a tire using two carcass half-reinforcements
    Patent number: 6041841
    Abstract: The machine for manufacturing a tire carcass half-reinforcement from a single filament wrapped around a bead wire which includes: bead wire holders operated by actuating cylinders, allowing said bead wire to be held in a predetermined position; a ring which has half as many hooks as there will be arches of carcass filament contained in the tire that is to be manufactured, the ring being held a predetermined distance away from said bead wire; a reel of filament which is moved in the central space of the bead wire, wrapped around it, the path crossing the plane of the ring and passing radially inside it; and a mechanism for hooking the filament onto each of the hooks.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: March 28, 2000
    Assignee: Compagnie Generale Des Etablisse-Michelin - Michelin & CIE
    Inventors: Georges Gazuit, Adam Jara
  • Safety insert with warning function
    Patent number: 6039099
    Abstract: A safety insert, intended to be mounted on a wheel rim inside a tire to support the crown of this tire in the event of a loss of inflation pressure, wherein the running radius of the safety insert under run-flat conditions varies with a frequency of variation that is appreciably equal to its frequency of rotation.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: March 21, 2000
    Assignee: Compagnie Generale des Etablisse-Michelin-Michelin & Cie
    Inventor: Olivier Muhlhoff
  • Tread and sidewall of a tire
    Patent number: D424484
    Type: Grant
    Filed: August 3, 1998
    Date of Patent: May 9, 2000
    Assignee: Compagnie Generale des Etablisse-Michelin-Michelin & Cie
    Inventor: Cedric Mulier