Abstract: Molding element of a mold for molding and vulcanizing a tire tread, this tread having a tread surface intended to come into contact with the ground when the said tire is rolling. The molding element having a molding surface intended to mold part of the tire tread surface and a blade intended to mold a sipe or a groove in the tread. Indeed, the molding element has two cutting means positioned on either side of the blade at a certain distance from this blade, these cutting means having a plurality of pins.

Abstract: A diene rubber composition for tires based on at least (i) one diene elastomer, (ii) one reinforcing inorganic filler and (iii) one coupling agent which provides the bonding between the inorganic filler and the elastomer. The inorganic filler comprises at least one silica capable of being obtained by the preparation process of the type comprising the reaction of a silicate with an acidifying agent, whereby a silica suspension is obtained, followed by the separation and the drying of this suspension. The reaction of the silicate with the acidifying agent is carried out according to the following successive stages: (i) an aqueous suspension of precipitated silica, exhibiting a pH of between 2.5 and 5.3, is brought into contact (mixing) with acidifying agent and silicate, in such a way that the pH of the reaction medium is maintained between 2.5 and 5.3, (ii) silicate is added to the reaction medium obtained, so as to increase the pH of the reaction medium up to a value of between 4.7 and 6.3.

Abstract: Vulcanizing device with radially mobile segments comprising: a bottom plate supporting a bottom shell for molding a tire sidewall, an axially mobile top plate supporting a top shell for molding a tire sidewall, an axially mobile closure ring comprising an inclined interior face, a plurality of circumferentially arranged adjacent segments of which the interior radial faces comprise linings for molding the tread of the tire and of which the inclined exterior radial faces are able to collaborate with: first means of coupling with the closure ring which are produced in such a way that the axial movements of the closure ring involve a radial movement of the segments, and second means of coupling the segments to the top plate which are able to connect the segments to the top plate and to allow their radial movement, the said second means of coupling being adjustable on the circumference of the top plate.

Abstract: A vulcanizing mold for molding and vulcanizing a tire, comprising a molding surface extending circumferentially in the mold, and comprising two end strips of patterns arranged respectively close to two edges of the molding surface and at least one intermediate strip of patterns positioned between the two end strips of patterns. At least one end strip comprises patterns belonging to a first pattern type and the patterns of the first pattern type have a width which is less than the width of the patterns belonging to the other pattern types of the end strip, and the patterns of the first pattern type are grouped at least in twos on first segments of the mold. The patterns of the end strip not belonging to the first pattern type belong to second segments, each second segment comprising just one pattern of the said end strip.

Abstract: Disclosed is a tire mountable apparatus and method that includes a substrate defining a longitudinal direction, a top surface and a bottom surface. The substrate has a plurality of conductor terminals arranged in a substantially linear relationship. A first support element is located below the bottom surface of the substrate and a second support element is located above the top surface of the substrate. The plurality of conductor terminals are positioned between the first and second support elements. The substrate may be a piezoelectric device having a piezoelectric layer arranged between first and second conductive layers. The plurality of conductor terminals may be arranged in a substantially linear relationship along a line about 80° to about 100° to the longitudinal direction of the substrate, and the longitudinal direction of the substrate being substantially perpendicular to the direction of rotation of the tire.

Abstract: It is an object to provide a method for producing compound semiconductor particles in which monodisperse compound semiconductor particles can be prepared according to the intended object, clogging with products does not occur due to self-dischargeability, a large pressure is not necessary, and productivity is high. In producing compound semiconductor particles by separating and precipitating, in a fluid, semiconductor raw materials, the fluid is formed into a thin film fluid between two processing surfaces arranged so as to be able to approach to and separate from each other, at least one of which rotates relative to the other, and the semiconductor raw materials are separated and precipitated in the thin film fluid.

Abstract: A voltage measurement is made between two points in a circuit. If the measured voltage exceeds a predetermined amount, a switch is operated to electrically connect the two points.

Abstract: Molding element for molding and vulcanizing a tire tread, having a tread surface contacting the ground when rolling, having a molding surface to mold part of the tread surface and a blade of length and of height H to mold a sipe or a groove in the tread, having a rounded end extending along its length in a direction of extension X. The molding element has two cutting means to cut a cover layer applied to a green form of the tire, positioned on either side of the blade at a certain distance from this blade, each cutting means having a cutting edge extending in the direction of extension, making an acute angle ? in a sectional drawing perpendicular to direction of extension X able to cut the cover layer, the distance between this cutting edge and the molding surface being lower than the height H of the blade.

Abstract: Process for the recovery of diene or vinylaromatic monomers from a gas stream, including bringing the gas stream into contact, in an extraction column (C1), with an organic extraction solvent, which absorbs the monomer, and stripping or desorption with an inert gas in (C1), by feeding, at the bottom of (C1) below the feeding of the monomers, a stream of inert gas, a liquid stream having the extraction solvent and the monomer recovered at the bottom of (C1) and an exiting gas stream recovered at the top of (C1), then within a second recovery column C2,recovery of the monomer, wherein the monomer is separated from the extraction solvent by distillation fed with the liquid stream recovered at the bottom of (C1), a stream comprising concentrated monomer(s) recovered at the top of (C2) and a liquid stream having the extraction solvent recovered at the bottom of (C2) and then recycled to the top of (C), the monomer or monomers being dienes, vinylaromatic compounds, or isobutene.

Abstract: A hand held power tool includes: a motor room housing a motor that drives an output shaft; a bevel gear including interconnected pinion and crown gears, wherein the pinion gear is connected to a pinion shaft drivingly connected to the output shaft and the crown gear is drivingly connected to a tool holding shaft; a gear housing that delimits a fluid tight gear space around the bevel gear; a bearing, around the pinion shaft and close to the pinion gear, which delimits a confined space around the pinion shaft and within the gear space; and a fluid tight axial sealing, around the pinion shaft inside the confined space of the gear space, which seals off the gear space from the motor room. At least one fluid conveying opening is arranged to put the confined space of the gear space in fluid contact with the rest of the gear space.

Abstract: The invention relates to a tire comprising at least two working layers (41, 43) and at least one layer of circumferential metal reinforcing elements (42). According to the invention, the layer of circumferential reinforcing elements consists of at least one central part (422) and two axially external parts (421), the reinforcing elements of the central part of at least one layer of circumferential reinforcing elements being reinforcing elements cut so as to form sections (6), the length of the sections being less than 550 mm, the distance (d) between the ends of two consecutive sections being greater than 25 mm, the length of the sections being between 1.1 and 13 times the distance between the ends of two consecutive sections and the reinforcing elements of the two axially external parts (421) being continuous.

Abstract: The present invention relates to a novel catalytic system for polymerization, and more particularly for preparing conjugated diene polymers bearing a polar function at the chain end. This catalytic system is based on a metal salt of a rare-earth metal and, as alkylating agent, an organometallic compound based on a metal belonging to the 2nd column or the 13th column of the Periodic Table, capable of transferring a polar function to the diene elastomer during the conjugated diene polymerization step. The novel catalytic system makes it possible to reduce the steps for synthesizing a chain-end functionalized elastomer, while ensuring optimal functionalization, advantageously close or equal to 100%.

Abstract: A solid particle for washing and the washing method using the same are provided. The solid particle is a polymer solid particle, wherein open pores are distributed on the solid particle surface. The washing method using the solid particle comprises steps of separating the articles to be washed with the solid particles, rinsing the articles to be washed and drying the articles to be washed.

Abstract: Particular embodiments include a retreaded tire and a method for retreading a tire. A method may include providing a tire tread having a thickness and a width with grooves extending into the thickness from a tread top side, and providing a tire carcass having an annular tread-receiving side. The method may include applying the tread to the tire carcass with a layer of bonding material arranged between the tread and the tire carcass, and evacuating a gas from between the tire carcass and the tread bottom side through an aperture extending through the tread thickness, the aperture being formed by piercing the tread thickness with a suctioning member arranged in operable communication with a vacuum source, and bonding the tread to the tire carcass. In particular embodiments, portions of the bottom side of the tread beneath the grooves are not bonded to the tire carcass or the bonding layer.

Abstract: Methods and systems for improving tire uniformity through identification of characteristics of one or more candidate process effects are provided. The magnitudes of process harmonics associated with one or more candidate process effects can be identified by combining uniformity measurements for a set of tires to achieve an enhanced resolution for a sampling of the process harmonic. The enhanced resolution approach can combine uniformity measurements for a set of a plurality of tires that are slightly offset from one another to generate a composite process harmonic sampling. In particular, the composite process harmonic sampling can be generated by aligning the uniformity measurements for each tire in the set of tires based on the azimuthal location of the maximum magnitude of the process harmonic on each tire. The magnitude of the process harmonic can then be determined using the composite process harmonic sampling.