Patents Assigned to Compagnie Generale des Etablissements Michelin, raison sociale Michelin & Cie
  • Patent number: 4092268
    Abstract: Polymers of conjugated dienes and copolymers of conjugated dienes with vinyl aromatic compounds or with other conjugated dienes having a high content of trans-1,4 linkages and a low content of 1,2 or 3,4 linkages and an elastomeric character are prepared by use of a catalytic composition which comprises (a ) an organo-lithium initiator and (b) a cocatalyst system comprising a compound of barium or strontium and an organometallic compound of a metal of Group IIB or IIIA of the Mendeleev periodic table of elements.
    Type: Grant
    Filed: February 23, 1976
    Date of Patent: May 30, 1978
    Assignee: Compagnie Generale des Etablissements Michelin, raison sociale Michelin & Cie
    Inventor: Yves de Zarauz
  • Patent number: 4035435
    Abstract: The adhesion of textile fibers to unsaturated polymers is made possible by use of an adhesive which comprises a blend of one or several elastomer latices and a phenoplast system based on a precondensate of formaldehyde, resorcinol and a para-substituted phenol having one or two active methylene groups and a precondensate of formaldehyde and resorcinol.
    Type: Grant
    Filed: September 13, 1976
    Date of Patent: July 12, 1977
    Assignee: Compagnie Generale des Etablissements Michelin, raison sociale Michelin & Cie
    Inventor: Georges Rouzier
  • Patent number: 4031938
    Abstract: Tire treads are made more resistant to "groove wear" without reducing adherence of the tread to wet or moist roads by providing specially located recesses and incisions in the critical zones formed by the salient angles and the reentrant angles of the broken-line circumferential ribs.
    Type: Grant
    Filed: February 26, 1976
    Date of Patent: June 28, 1977
    Assignee: Compagnie Generale des Etablissements Michelin, raison sociale Michelin & Cie
    Inventor: Henri Verdier
  • Patent number: 4027712
    Abstract: A tire has its tire cavity filled with inexpensive lubricated light cellular particles and thereby avoids deformation and flattening of the tire upon loss of inflation pressure while maintaining vehicular control.
    Type: Grant
    Filed: June 6, 1975
    Date of Patent: June 7, 1977
    Assignee: Compagnie Generale des Etablissements Michelin, raison sociale Michelin & Cie
    Inventor: Henri Verdier
  • Patent number: 4026318
    Abstract: A valve for giant tires comprises a tubular element and a valve member slidable within the tubular element for opening and closing the valve. The tubular element comprises a first section for connection to the valve stem of a tire, a second section forming an extension of the first section, and a third section forming an extension of the second section. The tubular element is formed with a bore which extends through the three sections and which widens in the direction from the third section to the second section and thereby forms a valve seat. The valve member comprises a rod extending longitudinally of the bore, a valve-sealing member connected to the rod for cooperation with the valve seat, a first guide member connected to the rod and being slidable within the widened bore of the second section, and a second guide member connected to the rod and being slidable within the bore of the third section.
    Type: Grant
    Filed: March 6, 1975
    Date of Patent: May 31, 1977
    Assignee: Compagnie Generale des Etablissements Michelin, raison sociale Michelin & Cie
    Inventor: Daniel Lejeune
  • Patent number: 4025454
    Abstract: The adhesion of textile fibers to unsaturated polymers is made possible by use of an adhesive which comprises a blend of one or several elastomer latices and a phenoplast system based on a precondensate of formaldehyde, resorcinol and a para-substituted phenol having one or two active methylene groups and a precondensate of formaldehyde and resorcinol.
    Type: Grant
    Filed: May 9, 1975
    Date of Patent: May 24, 1977
    Assignee: Compagnie Generale des Etablissements Michelin, raison sociale Michelin & Cie
    Inventor: Georges Rouzier
  • Patent number: 4006326
    Abstract: An alarm device signals a substantial drop in the inflation pressure of the tires on the wheels of an automotive vehicle. The device comprises a portion of an electric circuit located at the free end of a flexible rod which is covered with a layer of material of low resistance subject to abrasion. The covering material is removed by abrasion as the vehicle travels over the road if tire pressure is low. The electric circuit, consisting of two wire-like elements, may be either normally closed or normally open. In the latter instance, the separated wires are fused together. In both embodiments, this change in the condition of the circuit causes an alarm to be set off.
    Type: Grant
    Filed: December 23, 1974
    Date of Patent: February 1, 1977
    Assignee: Compagnie Generale des Etablissements Michelin, raison sociale Michelin & Cie
    Inventor: Daniel Lejeune
  • Patent number: 4003421
    Abstract: A rim for tubeless tires is improved by having the outer elastic annular sealing ring housed in a groove located in a conical bearing surface of the fixed locking device forming a thickening of increasing diameter which is firmly connected with the rim base.
    Type: Grant
    Filed: November 26, 1975
    Date of Patent: January 18, 1977
    Assignee: Compagnie Generale des Etablissements Michelin, raison sociale Michelin & Cie
    Inventor: Daniel Lejeune
  • Patent number: 4003419
    Abstract: A tire has its tire cavity filled with inexpensive lubricated light cellular particles and thereby avoids deformation and flattening of the tire upon loss of inflation pressure while maintaining vehicular control.
    Type: Grant
    Filed: December 23, 1974
    Date of Patent: January 18, 1977
    Assignee: Compagnie Generale des Etablissements Michelin, raison sociale Michelin & Cie
    Inventor: Henri Verdier
  • Patent number: 3998256
    Abstract: The tread of a pneumatic tire is formed with relief blocks and with grooves that delimit the relief blocks and that open onto the edges of the tread. The relief blocks have sections parallel to their surface of contact with the ground which have central ellipses of inertia which are substantially circular and identical. At least some of the relief blocks are formed with a recess and with a straight connecting groove communicating with the recess and with the closest delimiting groove. The delimiting groove provide paths for the removal of water during travel of the tire on a wet road that extend obliquely forward in the direction of travel and facilitate discharge of water at the edges of the tread.
    Type: Grant
    Filed: June 27, 1974
    Date of Patent: December 21, 1976
    Assignee: Compagnie Generale des Etablissements Michelin, raison sociale Michelin & Cie
    Inventor: Henri Verdier
  • Patent number: 3986545
    Abstract: An all weather road tire has a tread provided with juxtaposed circumferential grooves which follow a broken-line outline having segments of longitudinal orientation alternating with oblique segments.
    Type: Grant
    Filed: June 5, 1975
    Date of Patent: October 19, 1976
    Assignee: Compagnie Generale des Etablissements Michelin, raison sociale Michelin & Cie
    Inventor: Jean Bernard Montagne
  • Patent number: 3977174
    Abstract: A cable for reinforcing objects formed of elastic or easily deformable material, such as automobile tires and conveyor belts, has as conventional components a core and at least one peripheral layer surrounding the core, each component being formed of elements, such as individual wires or strands of wires. The resistance of such a reinforcing cable to fatigue and/or to wear is increased due to the fact that at least two consecutive components in contact with each other in radial direction are constituted of elements made of material having moduli of elasticity which differ from one component to the other.
    Type: Grant
    Filed: February 11, 1975
    Date of Patent: August 31, 1976
    Assignee: Compagnie Generale des Etablissements Michelin, raison sociale Michelin & Cie
    Inventor: Jacques Boileau
  • Patent number: 3962200
    Abstract: The deleterious foam encountered during the bulk polymerization of diene monomers with each other or with vinyl aromatic compounds can be prevented by conducting the bulk polymerization in the presence of an organosiloxane anti-foam compound, which compound does not adversely affect either the coordination catalyst system or the properties of the polymer product.
    Type: Grant
    Filed: January 31, 1975
    Date of Patent: June 8, 1976
    Assignee: Compagnie Generale des Etablissements Michelin, raison sociale Michelin & Cie
    Inventor: Yves de Zarauz
  • Patent number: 3938575
    Abstract: The durability and stability of the beads of a radial ply pneumatic tire are improved by making the tensions acting on the main radial carcass ply and on the portion thereof folded over the bead ring different from each other and having the tension acting on the main radial carcass ply greater than the tension acting on the folded-over portion.
    Type: Grant
    Filed: April 9, 1975
    Date of Patent: February 17, 1976
    Assignee: Compagnie Generale des Etablissements Michelin, raison sociale Michelin & Cie
    Inventor: Jacques Boileau
  • Patent number: 3934634
    Abstract: The tread reinforcement of a pneumatic tire comprises at least two plies of cords that are crossed with respect to each other and oblique with respect to the longitudinal direction. The carcass reinforcement comprises at least one principal ply extending from one bead to the other and two auxiliary plies having cords oblique with respect to the longitudinal direction and arranged one on one side and the other on the other side of the median plane of the tire. The cords of the principal ply are oblique with respect to the radial direction in the zones in which the auxiliary plies are mounted and radial in other zones.
    Type: Grant
    Filed: February 22, 1974
    Date of Patent: January 27, 1976
    Assignee: Compagnie Generale des Etablissements Michelin, raison sociale Michelin & Cie
    Inventor: Henri Verdier
  • Patent number: RE30527
    Abstract: The tread of a giant pneumatic radial tire for use on heavy-duty road vehicles is divided by two wide circumferential grooves into three wide circumferential ribs. The wide ribs are substantially free of grooves therein interrupting their circumferential continuity and of wide circumferential grooves.
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: February 24, 1981
    Assignee: Compagnie Generale des Etablissements Michelin, raison sociale Michelin & Cie
    Inventor: Henri Verdier