Abstract: Tire, the internal wall of which is covered with an airtight layer, itself covered with a layer of self-sealing product, comprising a radial carcass reinforcement (60) composed of reinforcing elements (61) having an elongation at break EBC and a breaking strength BSC, placed at a placement pitch PC and coated with rubber composition, designed so as to satisfy the inequality: BS C P C ? 1.5 · 10 6 · ( R S 2 - R E 2 ) R T . Each sidewall of the tire additionally comprises an additional strengthening reinforcement (120) composed of thread reinforcing elements having an elongation at break EBA and a breaking strength BSA, placed at a placement pitch PA and coated with rubber composition, in which each of the two additional strengthening reinforcements is designed such that: BS A P A ? 1.

Abstract: Tire, the internal wall of which is covered with an airtight layer, itself covered with a layer of self-sealing product, comprising a radial carcass reinforcement (60) composed of reinforcing elements (61) having an elongation at break EBC and a breaking strength BSC, placed at a placement pitch PC and coated with rubber composition, designed so as to satisfy the inequality: BS C P C ? 1.5 · 10 6 · ( R S 2 - R E 2 ) R T , each sidewall of the tire additionally comprising an additional strengthening reinforcement (120) composed of thread reinforcing elements having an elongation at break EBA and a breaking strength BSA, placed at a placement pitch PA and coated with rubber composition, in which each of the two additional strengthening reinforcements is designed such that: BS A P A ? 1.

Abstract: Tire for a passenger vehicle, including a crown portion on its exterior with a tread, extended laterally by sidewalls terminating in beads to contact with rim parts (J) on which the tire is mounted, each sidewall including an inner wall and an outer wall, at least one of the sidewalls includes a plurality of first sectors and second sectors, formed on the outer wall of a first sidewall portion between the crown portion the axially outermost points when this tire is mounted inflated, wherein the first sectors are completely without raised markings, i.e. raised markings of a height greater than 0.2 mm, whereas the second sectors are provided with raised markings, these raised markings having a height equal to at least 0.2 mm, wherein the first sectors each form an angle equal to at least 20°, and wherein the sum of the angles of said first sectors is equal to at least 120°.

Abstract: A tire made of rubbery material comprising a sidewall and a pattern formed on this sidewall. This pattern comprises a plurality of openings and intermediate zones separating these openings. In order for the pattern to contrast with the sidewall, the openings occupy at least 60% of the pattern, these openings being distributed through the pattern at a density at least equal to five openings per square millimetre (mm2), these openings having equivalent diameters of between 0.03 mm and 0.5 mm. A mold element for making the openings and and method of making the pattern using a laser.

Abstract: Tread comprising at least one groove delimited by two walls facing one another, joined together by a groove bottom, this groove having a plurality of closure devices, each made up of at least one flexible blade (of thickness E suited to allowing flexing under the effect of a circulation of liquid in the groove, and secured to a wall delimiting the groove, each flexible blade bounded by a bottom wall facing the bottom of the groove, an end wall facing the other wall of the groove and a contact wall to come into contact with the roadway and lateral walls spaced apart from one another by a distance equal to the thickness E of the blade, the bottom wall of each flexible blade having a notch in the vicinity of the wall to which the blade is attached, wherein each flexible blade is connected to one of the walls delimiting the groove inside a housing (formed on the wall bearing the blade, each housing having a depth suited to containing in its entirety a notch.

Abstract: The invention relates to a tire made of rubbery material comprising a sidewall on which there is formed at least one pattern that contrasts with this sidewall. The pattern comprises a plurality of strands distributed through the pattern with a density of at least five strands per square millimetre (mm2), each strand having a mean cross section of between 0.003 mm2 and 0.06 mm2. The tire also comprises on the said sidewall at least two ribs that pass through the pattern and between which strands of the pattern are present, the said ribs being distant from one another by at most 10 mm, each rib having a height of at least 0.25 mm and a mean width of at least 0.20 mm, the said pattern following the relief formed by the ribs.

Abstract: A tire comprising a tread portion designed to be worn off during the life of the tire having a radial thickness T, an outer edge and an inner edge, the axial distance between the outer edge and the inner edge defining the axial width L of the tread, the tread comprising four adjacent portions made of a four rubber compounds, wherein the rubber compounds making up the first and third portions are predominantly filled with carbon black filler, wherein the rubber compounds making up the second and fourth portion are predominantly filled with non carbon black filler, wherein the rubber compounds making up the first and third portions have a value for tan ? at 0° C., at a stress of 0.7 MPa, that is lower than that of the rubber compounds making up the second and fourth portion, and wherein the axial width of the first portion decreases and the axial width of the second portion increases as a function of the distance from the rolling surface of the tread when unworn.

Abstract: Tyre comprising a tread, this tread including a rolling surface (12) intended to come into contact with the ground, at least one circumferential row of upstanding elements (11), these upstanding elements (11) being separated from one another in the circumferential direction by incisions (20) of transverse or substantially transverse orientation, each incision (20) of transverse or substantially transverse orientation leading onto the rolling surface (12) and having a depth P, each incision (20) forming, on the rolling surface of the tyre when new, two facing edges (21, 22), these edges (21, 22) delimiting at least one narrow portion (30) of the incision, i.e. a portion having a mean width LE less than or equal to 2 mm, and at least one wide portion (40) of the incision, i.e.

Abstract: A rubber tire comprising a surface having, over at least a portion of this surface, a pattern comprising a plurality of bars placed substantially parallel with one another, each comprising a tip distant from the surface of the tire and a base materially integral with the tire. Each bar of the plurality of bars comprises two inclined walls extending on either side of the tip towards the base, the angle of inclination of each inclined walls less than or equal in absolute value to 25° relative to a direction perpendicular to the surface. The bases of the bars are not in contact with one another so that the bases of two adjacent bars delimit a residual surface between the bars. The width of the residual surface corresponding to a distance between the bases of the two adjacent bars is less than or equal to half the height of the adjacent bars, the height being between 0.1 mm and 0.8 mm.

Abstract: Tire having a visible surface comprising patterns contrasting with said surface, said pattern comprising, over the entire surface thereof, a plurality of tufts distributed with a density of at least five tufts per mm2 or a plurality of blades which are substantially parallel to one another and arranged with a pitch of less than 0.5 mm, each tuft having a mean cross section having a diameter of between 0.03 mm and 0.5 mm or each blade having a mean width of between 0.03 mm and 0.5 mm, characterized in that the walls of the tufts or of the blades have, over at least one quarter of the area thereof, a mean roughness Rz of between 5 ?m and 30 ?m.

Abstract: Tread for a tyre for a two-wheel vehicle improving grip when running on a usage surface liable to become slippery; this tread comprising blocks (1, 2, 3) separated from one another by grooves (4), each block comprising a contact face (10, 20, 30) intended to come into contact with the usage surface as the tyre is running and lateral faces intersecting the contact face to form edge corners delimiting a contour of the contact face having a geometric shape with at least three branches, each branch (11, 21, 31) ending in a point (110, 210, 310) the angle of which is at least equal to 20 degrees and at most equal to 90 degrees, the branches (11, 21, 31) of each block (1, 2, 3), considered two by two, between them determining setback parts (12, 22, 32), each block (1, 2, 3) being provided with slits (111, 112, 113; 211, 212, 213; 311, 312, 313) terminating at one of their ends in one of the setbacks formed on the face of the block and at a same location at their other end so as to create elementary patterns compris

Abstract: A ball-striking sole for a table tennis paddle comprises a flexible coating (118) of elastic material, one face (135) of which is lined with elastically deformable pimples (120) which protrude from said face. The cross section of said pimples is greater in their region (122) of attachment to this coating than in the region close to their opposite end (124) and the side wall (125) of these pimples has a concave curved profile over at least a part of the height of the pimple between these two regions. This sole is used particularly successfully in a table tennis paddle in which the face of said sole (112) lined with pimples (120) is directed towards the inner side of the blade (115) of the paddle such that the free ends (124) of the pimples, the lateral surface of which has a concave curved profile (125), are pressed against a layer (126) of elastic material, secured to the blade, the modulus of elasticity of which is much lower than that of the elastic coating (118) of the sole.

Abstract: Tire having a visible surface comprising patterns contrasting with said surface, said pattern comprising, over the entire surface thereof, a plurality of tufts distributed with a density of at least five tufts per mm2 or a plurality of blades which are substantially parallel to one another and arranged with a pitch of less than 0.5 mm, each tuft having a mean cross section having a diameter of between 0.03 mm and 0.5 mm or each blade having a mean width of between 0.03 mm and 0.5 mm, characterized in that the walls of the tufts or of the blades have, over at least one quarter of the area thereof, a mean roughness Rz of between 5 ?m and 30 ?m.

Abstract: A tire (10) comprising a tread (40) provided with a rolling surface, at least one recess (90) being formed in the tread, which recess opens onto the rolling surface, the recess being delimited by a bottom wall and one single side wall, the tire also comprising at least one appliqué (100; 1001-1002), and the appliqué being inserted into the recess and fixed by means of an adhesive (110) to at least a portion of said bottom or side wall of the recess. The invention also concerns a method and a kit for making a tire more resistant to external aggression.

Abstract: A ball-striking sole for a table tennis paddle comprises a flexible coating (118) of elastic material, one face (135) of which is lined with elastically deformable pimples (120) which protrude from said face. The cross section of said pimples is greater in their region (122) of attachment to this coating than in the region close to their opposite end (124) and the side wall (125) of these pimples has a concave curved profile over at least a part of the height of the pimple between these two regions. This sole is used particularly successfully in a table tennis paddle in which the face of said sole (112) lined with pimples (120) is directed towards the inner side of the blade (115) of the paddle such that the free ends (124) of the pimples, the lateral surface of which has a concave curved profile (125), are pressed against a layer (126) of elastic material, secured to the blade, the modulus of elasticity of which is much lower than that of the elastic coating (118) of the sole.

Abstract: Footwear with a sole formed from an elastomeric material whose grip is improved on ground where the interface may include an intermediate foreign substance, this sole comprising lugs (31) separated from each other by grooves (35). The walls of the grooves (35) are cut into the thickness of the elastomeric material and delimit patterns with sharp angles in the profile of said lugs (31) which can pierce said foreign substance to establish direct dry contact between the two surfaces. Each lug (31) forms a star-shaped pattern having at least five arms in the form of stems (32) distributed over its, profile and each stem (32) is orientated radially towards the outside of the pattern and terminates in an end. Each stem (32) is separated from its neighbor by a recess (38) in the profile of the lug. Finally, each lug (31) has a stem (32) engaged in a space of the adjacent groove (35) which is delimited by a recess (38) between two neighboring stems in the profile of a second lug neighboring the first lug.

Abstract: A method of measuring the profile, in three dimensions, of a pavement on which vehicles fitted with at least one tire may run. A first topographical measurement is carried out on site with a precision of at least one millimeter of an elementary surface of said pavement, then the points of contact between said surface and the tread of a given tire are defined and at least a second topographical measurement of said points of contact is carried out on site so as to obtain a three-dimensional representation, with a resolution of the order of one micron, of the microroughness of said points of contact.

Abstract: A method of measuring the profile, in three dimensions, of a pavement on which vehicles fitted with at least one tire may run. A first topographical measurement is carried out on site with a precision of at least one millimeter of an elementary surface of said pavement, then the points of contact between said surface and the tread of a given tire are defined and at least a second topographical measurement of said points of contact is carried out on site so as to obtain a three-dimensional representation, with a resolution of the order of one micron, of the microroughness of said points of contact.

Abstract: The wheel and tire assembly for running on ground includes measurement means carried by the wheel for measuring topological parameters of the inside surface of a pertinent portion of the tire. These measurement means comprise lighting and viewing means for lighting and viewing a calibrated surface pattern that is subjected to the deformation of the inside surface of the pertinent portion of the tire. The viewing means are preferably of the stereovision type or of the structured light type.

Abstract: The wheel and tire assembly for running on ground includes measurement means carried by the wheel for measuring topological parameters of the inside surface of a pertinent portion of the tire. These measurement means comprise lighting and viewing means for lighting and viewing a calibrated surface pattern that is subjected to the deformation of the inside surface of the pertinent portion of the tire. The viewing means are preferably of the stereovision type or of the structured light type.