Abstract: A tyre for a vehicle wheel comprising two sidewalls, a tread, beads, the sidewall intended to be positioned on the interior side of the vehicle being shorter than that intended to be positioned on the exterior side of the vehicle, a reinforcement structure extending between the beads and maintained in said beads by anchoring zones, each of the beads comprising a specific and distinct arrangement of the anchoring zone thereof, such that the anchoring zone of the bead intended to be positioned on the exterior side of the vehicle exhibits a greater anchoring capacity than the anchoring zone of the bead intended to be on the interior side of the vehicle. The internal and external anchoring zones are thus arranged in such a manner as to produce, in operation, a rim clamping load which is substantially identical on each side.

Abstract: Vehicle tire including two sidewalls, beads which include a seat and an external flange which are intended to come into contact with a suitable rim, and a carcass reinforcement structure. At least one bead comprises a circumferential cord structure distributed in two regions, and an anchoring region in which the reinforcement structure is anchored in the bead, that region including circumferential cords arranged as stacks distributed symmetrically on opposite sides of the reinforcement structure. The center of inertia of the bead is located in the immediate vicinity of the anchoring region.

Abstract: A safety support designed to be inserted by a translation operation around a rim bearing in which the radially inner surface of the base of the support contains a plurality of protuberances radially arranged internally.

Abstract: A device designed for demounting a tire from a rim at least one of whose seats is inclined outwards, the device being in the form of an insert (4) of length (L) with three faces and whose cross-section in a transverse plane is triangular overall with a contour formed by two long sides (41, 42) and a short side (43), the angle between the long sides being close to the angle between the rim seats and the rotation axis, the length of the short side being essentially equal to the height of the projection of the outward-inclined rim seat, this insert (4) comprising on its face intended to come in contact with a bead seat at least one relief (421, 422) designed to interact with said bead seat (11) so as to keep the insert engaged with the bead.

Abstract: A tyre for a vehicle wheel comprising two sidewalls, a tread, beads, the sidewall intended to be positioned on the interior side of the vehicle being shorter than that intended to be positioned on the exterior side of the vehicle, a reinforcement structure extending between the beads and maintained in said beads by anchoring zones, each of the beads comprising a specific and distinct arrangement of the anchoring zone thereof, such that the anchoring zone of the bead intended to be positioned on the exterior side of the vehicle exhibits a greater anchoring capacity than the anchoring zone of the bead intended to be on the interior side of the vehicle. The internal and external anchoring zones are thus arranged in such a manner as to produce, in operation, a rim clamping load which is substantially identical on each side.

Abstract: Disclosed is a method for controlling the formation of biofilms in cooling water systems or closed systems wherein water is cooled, heated and recirculated, by injecting a glycol ether or mixture of glycol ethers as biodispersant in the water of such systems. The glycol ethers are chosen to be soluble in water. The preferred glycol ethers result from the reaction between one or more alcohols with one or more epoxides, preferably chosen from ethylene oxide and propylene oxide.

Abstract: A tire comprising two sidewalls, beads, a reinforcement structure extending radially from each of the beads towards the crown zone, at least one of said beads comprising: a bead seat of inverted type; an anchoring zone for the reinforcement structure in said bead, comprising an arrangement of circumferential cords, a bonding mix being arranged between the circumferential cords and the reinforcement structure, said bonding mix of the anchoring zone having a elasticity modulus at a deformation of 10% of less than 20 MPa and preferably between 10 and 20 MPa; an axially outer zone arranged in the zone of the bead; a bearing zone for said bead. The anchoring rubber mix makes it possible, in spite of its rigidity which is very much less than what was advocated previously, to retain very satisfactory endurance properties.

Abstract: A device designed for demounting a tire from a rim at least one of whose seats is inclined outwards, the device being in the form of an insert (4) of length (L) with three faces and whose cross-section in a transverse plane is triangular overall with a contour formed by two long sides (41, 42) and a short side (43), the angle between the long sides being close to the angle between the rim seats and the rotation axis, the length of the short side being essentially equal to the height of the projection of the outward-inclined rim seat, this insert (4) comprising on its face intended to come in contact with a bead seat at least one relief (421, 422) designed to interact with said bead seat (11) so as to keep the insert engaged with the bead.

Abstract: A tire comprising two sidewalls, beads, a reinforcement structure extending radially from each of the beads towards the crown zone, at least one of said beads comprising: a bead seat of inverted type; an anchoring zone for the reinforcement structure in said bead, comprising an arrangement of circumferential cords, a bonding mix being arranged between the circumferential cords and the reinforcement structure, said bonding mix of the anchoring zone having a elasticity modulus at a deformation of 10% of less than 20 MPa and preferably between 10 and 20 MPa; an axially outer zone arranged in the zone of the bead; a bearing zone for said bead. The anchoring rubber mix makes it possible, in spite of its rigidity which is very much less than what was advocated previously, to retain very satisfactory endurance properties.

Abstract: Tire for a vehicle wheel, comprising two sidewalls, beads which include a seat and an external flange which are intended to come into contact with a suitable rim, and a reinforcement structure, at least one of the said beads comprising: a substantially circumferential cord structure distributed in two regions: an anchoring region in which the reinforcement structure is anchored in the said bead, comprising a grouping of circumferential cords placed substantially adjacent to one portion of the reinforcement structure and comprising at least two stacks distributed on either side of the reinforcement structure, a bonding mix being placed between the circumferential cords and the reinforcement structure, and the said anchoring region being arranged in the said bead in such a way that, under normal pressure, the tensile loads on the reinforcement structure are distributed approximately uniformly along the contact region.

Abstract: A tire having a radial carcass reinforcement winding within each bead around at least one heel reinforcement element and whose meridian profile, when the tire is mounted and inflated, has a constant direction of curvature in a first bead and a sidewall extending it radially, and has a tangent TT′ to the point of tangency T of the carcass reinforcement profile with the annular element of the first bead which forms with the axis of rotation an angle &phgr; which is open towards the outside and is greater than 45°, wherein, viewed in meridian section, at least the aforesaid sidewall comprises a reinforcing profiled element having, viewed in section, substantially the form of a crescent, one of the axially inner or outer faces of the crescent-shaped profiled element follows the profile of the carcass reinforcement, and the trace of the face of the crescent-shaped profiled element opposite the face of such profiled element closest to the carcass reinforcement has a single direction of curvature.

Abstract: A safety support designed to be inserted by a translation operation around a rim bearing in which the radially inner surface of the base of the support contains a plurality of protuberances radially arranged internally.

Abstract: The invention relates to a novel tire having beads of a specified structure. In particular, the tire, when viewed in meridian section, has a radial carcass reinforcement and a bead of specified structure. The bead features a reinforcement ring that is able to move axially. The tire also features structures that are responsive to axial movement of the reinforcement ring, which modify clamping of the bead on its rim causing the clamping to increase with increasing tension of the carcass reinforcement.

Abstract: A safety support designed to be inserted by a translation operation around a rim bearing in which the radially inner surface of the base of the support contains a plurality of protuberances radially arranged internally.

Abstract: A tire having at least a first bead, the seat of which has a generatrix whose axially inner end lies on a circle of diameter greater than the diameter of the circle on which the axially outer end is located, and a radial carcass reinforcement winding within each bead around at least one heel reinforcement element, passing from the inside to the outside to form an upturn, the meridian profile of the carcass reinforcement, when the tire is mounted on its operating rim and inflated to the recommended pressure, having a constant direction of curvature in the first bead and a sidewall extending it radially, and having a tangent TT′ to the point of tangency T of the carcass reinforcement profile with the annular element of the first bead which forms with the axis of rotation an angle &phgr; which is open towards the outside and is greater than 45°, wherein, viewed in meridian section, at least the sidewall extending the first bead comprises a reinforcing profiled element having, viewed in section, substan

Abstract: A tire has a radial carcass reinforcement having a bead, the seat of which is inclined towards the outside, the bead heel axially to the inside and reinforced by at least one reinforcement element, the bead toe axially to the outside and having a profiled element of rubber mix in the form of a wedge defined by two sides, the mix having a Shore A hardness greater than the Shore A hardness of the rubber mixes radially above, wherein the reinforcement winds around the annular element to form an upturn, the end of which is located axially to the outside of a straight line P2 perpendicular to the axis of rotation and passing through the center of gravity of the meridian section of the element, and axially to the inside and radially to the outside of the straight line P1 supporting the radially outer side of the profiled element.

Abstract: The invention concerns a light safety support (1) for a tire comprising a base (2), a top (3) and an annular linking body (4) with a continuous support element around the circumference and a circumferential median plane, wherein the support element includes a plurality of partitions (13), (23) extending axially on either side of the circumferential median plane that are adapted in their central part relative to their lateral end parts to reinforce the support buckling strength under a radial load.

Abstract: A tire having a radial carcass reinforcement of low H/S ratio, at least one bead provided with an axially outer protuberance, the maximum axial width of which is greater than the space taken up by the rim, characterized in that the protuberance is provided with incisions of a width other than zero, of a depth of at most 5 mm and arranged circumferentially parallel to each other.

Abstract: The invention concerns a light safety support (1) for a tire comprising a base (2), a top (3) and an annular linking body (4) with a continuous support element around the circumference and a circumferential median plane, wherein the support element includes a plurality of partitions (13), (23) extending axially on either side of the circumferential median plane that are adapted in their central part relative to their lateral end parts to reinforce the support buckling strength under a radial load.

Abstract: A tire (1), a mounting rim (2) therefor and a circumferentially unstretchable ring (3) for supporting the tread (10) of the tire when running at low or zero pressure. The tire (1) has a radial ply casing (13) on which the points that are furthest apart axially are radially apart close to seats (12B) of outwardly sloping beads (12). The seats (12B) engage sloping seats (23′, 23″) on the rim (2), which may have at least one mounting well (22), at least one cylindrical portion (21) for receiving the supporting ring (3) and rim flange (24).