Patents Assigned to Michelin & Cie
  • Radial tire with triangulated crown reinforcement
    Patent number: 5772810
    Abstract: In the crown reinforcement (2) of a "heavy vehicle" tire, known as a high tire, the wires or cables of the triangulation ply (20) and the second working ply (22) are the widest of the reinforcement (2) and the radial distances between the respective wires or cables of the two plies at the level of their edges are at most equal to 1.5 mm over an axial distance l at least equal to 2% of the axial width L.sub.0 of the triangulation ply.
    Type: Grant
    Filed: September 25, 1996
    Date of Patent: June 30, 1998
    Assignee: Compagnie Generale des Etablisse-Ments Michelin - Michelin & Cie
    Inventor: Guy Cluzel
  • Tire with reinforced beads
    Patent number: 5769982
    Abstract: An airplane tire, inflated to a high pressure, with radial carcass reinfoment (1), comprising at least two axially inner plies (1A, 1B, 1C) of textile cords, wound around a bead wire (3) in each bead from the inside to the outside, forming turn-ups (10A, 10B, 10C), and at least one axially outer ply (1D, 1E) of textile cords extending along the turn-ups (10A, 10B, 10C), said bead wire (3) being radially surmounted by a filler (4) of height D with respect to a reference line XX' and also comprising at least one inner flipper (5) having two legs (5I) and (5E), characterized by the fact that the end of the axially outer leg (5E) of the inner flipper (5) and the end of the turn-up (10A) of the inner carcass ply (1A) which is arranged axially furthest towards the inside are located at radial distances L.sub.E and H.sub.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: June 23, 1998
    Assignee: Compagnie Generale des Etablissements Michelin--Michelin & Cie
    Inventor: Pierre De Loze de Plaisanc
  • Tire having a thread with lateral ribs the surface of which is radially recessed with respect to the other ribs
    Patent number: 5769978
    Abstract: In order to improve the resistance to separation between the ends of the working plies (31 to 34) of a crown reinforcement (3) and between the edges of said reinforcement (3) and the radial carcass reinforcement (2), the said plies have axial widths which are different from each other, and at least two of the widths are greater than the axial distance (L) between the median axes (XX') of the two lateral grooves (6) closest to the edges of the tread (1) and defining lateral regions (7) where the tread (1) has a meridian profile (8) radially recessed with respect to the meridian profile (9) of the geometrical envelope of its median zone.
    Type: Grant
    Filed: July 22, 1996
    Date of Patent: June 23, 1998
    Assignee: Compagnie Generale des Etablissments Michelin - Michelin & Cie
    Inventor: Patrick Lurois
  • Process and composition for the use of substituted melamines as hardeners of novolac resins
    Patent number: 5763558
    Abstract: A process for hardening a composition and a hardenable composition, in wh there are used:at least one novolac resin;at least one hardener of the resin, selected from the group consisting of substituted melamines;at least one compound comprising at least one ##STR1## group, this compound being without methylol group and ether group corresponding to methylol, and/or at least one reagent capable of giving such a compound under the conditions of the hardening.The hardening of the resin is caused by the action of heat.
    Type: Grant
    Filed: June 11, 1996
    Date of Patent: June 9, 1998
    Assignee: Compagnie Generale Des Etablissements Michelin-Michelin & Cie
    Inventors: Brigitte Marie Chauvin, Olivier Durel
  • Retreading process including treating vulcanized rubber surfaces before bonding
    Patent number: 5759322
    Abstract: Process and device for treating vulcanized rubber surfaces before bonding creating surface roughness and elimination of degraded surface particles through the use of a high-pressure fluid jet.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: June 2, 1998
    Assignee: Compagnie Generale des Etablissements Michelin - Michelin & CIE
    Inventors: Jean-Marie Courel, Denis Schruoffeneger, Serge Solignac
  • Rim and assembly of tire and/or ring-shaped tread support on same
    Patent number: 5749982
    Abstract: An assembly is formed of a tire (1), a mounting rim (2), and an annular bearing support (3) for the tread (10) of the tire, for running at low pressure or at zero pressure. The rim (2) has two seats (23', 23"), the first seat (23') having an outwardly inclined generatrix and being axially outwardly extended by a shoulder or hump (25'), and the second seat (23") having an inwardly inclined generatrix and being axially outwardly extended by a flange (24). The tire (1) has a radial carcass reinforcement (13) with a particular meridional profile and two beads (12', 12") adapted to the mounting rim (2). The tread supporting ring (3) is ovalizable and circumferentially inextensible.
    Type: Grant
    Filed: June 3, 1996
    Date of Patent: May 12, 1998
    Assignee: Compagnie Generale Des Etablissements Michelin - Michelin & Cie
    Inventors: Olivier Muhlhoff, Jean-Pierre Pompier
  • Radial heavy-duty truck tire with crown reinforcement having a multipartite ply
    Patent number: 5746853
    Abstract: A radial tire has a crown reinforcement (3) having at least two work crown lies (31, 32) of crossed inextensible metal cords, making angles of between 10.degree. and 45.degree. with the circumferential direction XX', and two limiting blocks (40) each composed of at least one ply of metal cords oriented at an angle of between 0.degree. and 10.degree., the blocks (40) being arranged in two separate regions on either side of the equatorial plane XX' and radially between the carcass reinforcement (1) and the radially outermost work crown ply (32). The two limiting blocks (40) are axially joined together by an additional reinforcement (41) which is composed of at least one ply of circumferentially oriented textile or metal cords and is centered on the equatorial plane XX', its tensile rigidity being at most equal to 0.5 times the tensile rigidity of the most extensible ply of the limiting blocks (40).
    Type: Grant
    Filed: November 4, 1996
    Date of Patent: May 5, 1998
    Assignee: Compagnie Generale des Etablissements Michelin - Michelin Cie
    Inventor: Laurence Burlacot
  • Radial tire for airplanes with beads having two bead rings
    Patent number: 5743976
    Abstract: An airplane tire with radial carcass reinforcement (3) comprising at least one ply of turned-up textile cords (3A, 3B, 3C), wound around an axially inner bead ring (T.sub.2) extending axially from the inside to the outside in order to form an axially outer turn-up (30A, 30B, 30C), at least one ply (3D, 3E) of textile cords wound around an axially outer bead ring T.sub.1 extending from the inside to the outside to form a turn-up (30D, 30E), characterized by the fact that the turn-up (30A) of the axially innermost ply (3A) is separated, over a certain radial portion, from the carcass ply (3D) by a profiled member (4) of rubber mix in crescent shape, the maximum thickness e.sub.4 of which is at least equal to 0.5 times the total thickness t of the turn-ups (30A, 30B, 30C) of carcass plies (3A, 3B, 3C) turned-up around the axially inner bead ring T.sub.2.
    Type: Grant
    Filed: November 20, 1996
    Date of Patent: April 28, 1998
    Assignee: Compagnie Generale des Etablissements Michelin-Michelin & Cie
    Inventors: Jorge Fernando Pena, Robert Postic, Pierre Roux
  • Tire having specified crown reinforcement
    Patent number: 5738740
    Abstract: In order to improve the endurance of the crown reinforcement (3) of a tyre, he H/S form ratio of which is at most 0.6, the latter is formed radially from the inside to the outside by a triangulation ply (31) of metal cables oriented at at least 60.degree. and two working crown plies (32, 34) formed of inextensible metal cables oriented at angles of between 10.degree. and 45.degree., between which there is inserted an additional ply (33) of metallic elements oriented substantially parallel to the circumferential direction of the tire.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: April 14, 1998
    Assignee: Compagnie Generale des Etablissements Michelin - Michelin & Cie
    Inventor: Guy Cluzel
  • Process and composition for the use of substituted melamines as hardeners of novola resins
    Patent number: 5718788
    Abstract: A process for hardening a composition and a hardenable composition, in wh there are used:at least one novolac resin;at least one hardener of the resin, selected from the group consisting of substituted melamines;at least one compound comprising at least one ##STR1## group, this compound being without methylol group and ether group corresponding to methylol, and/or at least one reagent capable of giving such a compound under the conditions of the hardening.The hardening of the resin is caused by the action of heat.
    Type: Grant
    Filed: June 7, 1996
    Date of Patent: February 17, 1998
    Assignee: Compagnie Generale Establissements Michelin - Michelin & Cie
    Inventors: Brigitte Marie Chauvin, Olivier Durel
  • Process for the manufacture of a tire having a carcass reinforcement which is formed of at least one ply of cords or cables
    Patent number: 5700339
    Abstract: A process for the manufacture of a tire which consists of producing a toral carcass reinforcement blank (1) by the helical winding of a cord or cable around a non-deformable, annular building core N, followed by at least one circumferential cut on the radially inner surface of the core N and a cut on the radially outer surface, the two halves of the blank being then separated axially to permit the removal of the core and subsequently brought together and connected for the finishing of the blank of the tire.
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: December 23, 1997
    Assignee: Compagnie Generale des Etablissements Michelin - MICHELIN & CIE
    Inventor: Jean Billieres
  • Tire with radial carcass with outside to inside turn-ups
    Patent number: 5688345
    Abstract: In a tire having an aspect ratio H/S of less than 0.8 the radial carcass nforcement (1) is wound in each bead (B) around an anchoring bead ring (2) going from the outside to the inside to form a turn-up (10), the turn-up being located on the inside of an angle .alpha., open axially towards the inside and radially towards the outside of at most 45.degree. and defined by two straight lines OD.sub.1 and OD.sub.2 tangent to the circle circumscribed around the anchoring bead ring (2), the straight line closest to the axis of rotation of the tire being parallel to the axis.
    Type: Grant
    Filed: March 15, 1996
    Date of Patent: November 18, 1997
    Assignee: Compagnie Generale Des Etablisse-ments Michelin-Michelin & Cie
    Inventor: Jean Billieres
  • Tread for a tire
    Patent number: D385240
    Type: Grant
    Filed: April 18, 1996
    Date of Patent: October 21, 1997
    Assignee: Compagnie Generale des Etablissements Michelin - Michelin & CIE
    Inventor: Gilbert Gauthier
  • Tread of a tire
    Patent number: D386134
    Type: Grant
    Filed: June 19, 1996
    Date of Patent: November 11, 1997
    Assignee: Compagnie Generale des Establissements Michelin - Michelin & Cie
    Inventors: Guy Cagneaux, Alain Delias, Jacques-Henri Martin
  • Tread of a tire
    Patent number: D389106
    Type: Grant
    Filed: June 19, 1996
    Date of Patent: January 13, 1998
    Assignee: Compagnie Generale des Etablissements Michelin - Michelin & Cie
    Inventors: Guy Cagneaux, Alain Delias, Jacques-Henri Martin
  • Tread of a tire
    Patent number: D391907
    Type: Grant
    Filed: March 11, 1997
    Date of Patent: March 10, 1998
    Assignee: Michelin & Cie
    Inventor: Gilbert Gauthier
  • Tread of a tire
    Patent number: D392923
    Type: Grant
    Filed: May 21, 1997
    Date of Patent: March 31, 1998
    Assignee: Compagnie Generale des Etablissements Michelin - Michelin & Cie
    Inventors: Guy Cagneaux, Alain Delias, Jacques-Henri Martin
  • Tread for a tire
    Patent number: D393820
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: April 28, 1998
    Assignee: Compagnie Generale des Etablissements Michelin--Michelin & Cie
    Inventor: Jose Merino Lopez
  • Tread for a tire
    Patent number: D394620
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: May 26, 1998
    Assignee: Compagnie Generale des Etablissements Michelin - Michelin & Cie
    Inventor: Jose Merino Lopez
  • Tread for a tire
    Patent number: D394621
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: May 26, 1998
    Assignee: Compagnie Generale des Etablissements Michelin - Michelin & Cie
    Inventor: Jose Merino Lopez