Abstract: A technique for predicting the wear of at least one tire whose tread has pattern elements and which is fitted to a terrestrial motor vehicle, and a system for implementing the technique that enables a user, such as the vehicle's driver, to know reliably at any given moment the level of wear on the tire or on all the tires, or how long the residual wear will last, or even the remaining available running distance. Also, the piloting of drive-aid systems such as “ABS” (anti-block braking system) or “ESP” (electric programmed stability device) systems can be adapted as a function of the wear characteristics of the vehicle.

Abstract: A technique for predicting the wear of at least one tire whose tread has pattern elements and which is fitted to a terrestrial motor vehicle, and a system for implementing the technique that enables a user, such as the vehicle's driver, to know reliably at any given moment the level of wear on the tire or on all the tires, or how long the residual wear will last, or even the remaining available running distance. Also, the piloting of drive-aid systems such as “ABS” (anti-block braking system) or “ESP” (electric programmed stability device) systems can be adapted as a function of the wear characteristics of the vehicle.

Abstract: A tire having a radial carcass reinforcement and a crown reinforcement composed of at least two crown plies and of inextensible reinforcing elements, preferably wire, crossed from one ply to the next by forming an angle with the circumferential direction that can range between 5° and 45°, and radially outside a tread, characterized in that said tread, composed of rubber compounds of different colors, is axially formed by at least three longitudinal parts, two lateral parts of rubber compound of a first color and, axially between said two parts, at least one rubber compound part of a second color other than black, each axial end A—visible outside—of the colored part with the second color being away from the end—situated on the same side relative to the equatorial plane of the tire—of the axially narrowest ply by a distance at least equal to 30 mm.

Abstract: A process for the manufacture of a rim preform or rim-element having an axis of revolution by the placing on a preforming matrix pre-assembled fibers along two orientations defining deformable meshes. A winding of a strip of fibers is fastened on a circumference of the preforming matrix with asymmetrical orientation of the fibers, whereupon it is applied progressively until covering the entire surface of the preforming matrix by subjecting it to tensions of substantially circumferential orientation.

Abstract: A process for the manufacture of a rim preform or rim-element having an axis of revolution by the placing on a preforming matrix pre-assembled fibers along two orientations defining deformable meshes. A winding of a strip of fibers is fastened on a circumference of the preforming matrix with asymmetrical orientation of the fibers, whereupon it is applied progressively until covering the entire surface of the preforming matrix by subjecting it to tensions of substantially circumferential orientation.

Abstract: A process for producing a composite part comprising:(i) putting short reinforcing fibers into a transfer mold;(ii) impregnation said short reinforcing fibers with a low viscosity resin;(iii) maintaining said short reinforcing fibers impregnated with by said resin in said transfer mold at a first temperature T.sub.1 known as the gelation temperature until a pasty preform is obtained whose viscosity is suitable for compression molding;(iv) removing said pasty preform from the mold;(v) placing said pasty preform in a compression mold brought to a second temperature T.sub.2, known as the compression temperature, wherein T.sub.2 >T.sub.1 ;(vi) compression molding said pasty preform; and(vii) polymerizing said pasty preform at at least a third temperature T.sub.3 wherein T.sub.3 .gtoreq.T.sub.2.