Patents Assigned to Sedepro
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Patent number: 6969438Abstract: A cutting device and method in which a reinforcement is guided to a cutoff point where it is cut by a knife driven by a rotary shaft and carried along a closed path which brings the knife into cutting relationship with the reinforcement during predetermined cycles.Type: GrantFiled: April 18, 2001Date of Patent: November 29, 2005Assignee: SedeproInventor: Claude Debroche
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Patent number: 6808569Abstract: The anchoring of the carcass reinforcing elements 1 is assured by circumferential cables 2, with the interposition of a connecting rubber composition 3. The circumferential cable 2 is arranged in several turns forming one or more helices. These circumferential cables have an operational elongation rate Af=Ae+Ap of more than 4%. This operational elongation rate does not include the specific elongation As of the “cable” effect. The maximum stress Rm of the cable 2 is preferably more than 2000 MPa. The cables have undergone a heat treatment which has, in combination, the features of being a recovery annealing treatment and which is carried out directly on cable comprising wires previously separately covered by an adherent coating.Type: GrantFiled: May 15, 2002Date of Patent: October 26, 2004Assignee: SedeproInventors: Pedro Costa Pereira, Jean-Claude Arnaud
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Patent number: 6641690Abstract: An apparatus for manufacturing a tire reinforcement from a cord, cooperating with a substantially toroidal form on which arches of the cord are deposited according to a desired trajectory for the cord on the surface of the form, the apparatus having depositing members arranged on a support, the depositing members including a guide member in which the cord may slide freely, a mechanism for actuating the guide member in a cyclical, to-and-fro, movement, to bring the guide member in successive oscillations into the vicinity of each of the desired ends for the cord in the trajectory. The apparatus further includes a first motor imparting the desired movements to the actuating mechanism and a second motor for imparting to the depositing member support a cyclical movement synchronized with the actuating mechanism, allowing deflection of the final trajectory of the cord on the form.Type: GrantFiled: February 1, 2001Date of Patent: November 4, 2003Assignee: SedeproInventor: Jean-Claude Mayet
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Patent number: 6468062Abstract: A rigid core at least partially defining a manufacturing form for the internal surface of a tire, the core including a plurality of circumferentially adjacent fractions disposed side by side in contact with one another by their transverse faces, the transverse faces of at least one fraction converging radially at the exterior of the core, each of the fractions including a portion for attachment to a rim, the attachment portion being arranged at the radially internal end of each of the fractions, the attachment portion being produced essentially from a first material, the core further including a main portion which is integrally connected to the attachment portion, is produced essentially from a second material different from the first material and is integrally connected to the attachment portion, the manufacturing form being essentially defined by said main portion.Type: GrantFiled: August 10, 2000Date of Patent: October 22, 2002Assignee: SedeproInventors: Alain Soulalioux, Jean-Pierre Ladouce
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Patent number: 6463978Abstract: An oscillating arm apparatus for manufacturing a tire reinforcement from a single cord in which the cord is deposited in contiguous arches on a rigid core by a system of arms arranged in series conveying an eyelet in such a way as to allow it to traverse a core and thus deposit adjacent arches.Type: GrantFiled: February 1, 2001Date of Patent: October 15, 2002Assignee: SedeproInventor: Jean-Claude Mayet
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Patent number: 6425429Abstract: The anchoring of the carcass reinforcing elements 1 is assured by circumferential cables 2, with the interposition of a connecting rubber composition 3. The circumferential cable 2 is arranged in several turns forming one or more helices. These circumferential cables have an operational elongation rate Af=Ae+Ap of more than 4%. This operational elongation rate does not include the specific elongation As of the “cable” effect. The maximum stress Rm of the cable 2 is preferably more than 2000 MPa. The cables have undergone a heat treatment which has, in combination, the features of being a recovery annealing treatment and which is carried out directly on cable comprising wires previously separately covered by an adherent coating.Type: GrantFiled: March 9, 2000Date of Patent: July 30, 2002Assignee: SedeproInventors: Jean-Claude Arnaud, Pedro Costa Pereira
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Publication number: 20020003020Abstract: A cutting device and method in which a reinforcement is guided to a cutoff point where it is cut by a knife driven by a rotary shaft and carried along a closed path which brings the knife into cutting relationship with the reinforcement during predetermined cycles.Type: ApplicationFiled: April 18, 2001Publication date: January 10, 2002Applicant: SEDEPROInventor: Claude Debroche
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Publication number: 20020002888Abstract: A cutting device and method for a tire reinforcement cord, the cutting device including a knife mounted on the periphery of a first rotary disk, and a second rotary disk mounted opposite the first rotary disk, and in which the knife of the first disk and the second disk are brought into cutting contact with the reinforcement while driving the first and second disks in rotation, the cutting device being preset so that, on cutting, the knife engages with said reinforcement, while the peripheral speed of said first and second rotary disks is close to the linear speed of the reinforcement.Type: ApplicationFiled: April 18, 2001Publication date: January 10, 2002Applicant: SEDEPROInventor: Olivier Essinger
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Patent number: 6312148Abstract: A continuous mixing apparatus and process for preparing a rubber compound in an elongated mixing chamber defined by the volume between a radially inner surface of a stator and a radially outer surface of a rotor, the constituents being such that their mixing is capable of producing inside the mixing chamber a product in gaseous phase as the rubber compound is advanced through the elongated mixing chamber from an inlet to an outlet and in which, in at least a part of the mixing chamber, a stream of gas is circulated against the direction of advance of the rubber compound through the mixing chamber to carry the gaseous phase out of the mixing chamber.Type: GrantFiled: March 29, 1999Date of Patent: November 6, 2001Assignee: Sedepro Societe AnonymeInventors: Michel Deal, Christian Van Meyel
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Publication number: 20010023736Abstract: An apparatus for manufacturing a tire reinforcement from a cord, cooperating with a substantially toroidal form on which arches of the cord are deposited according to a desired trajectory for the cord on the surface of the form, the apparatus having depositing members arranged on a support, the depositing members including a guide member in which the cord may slide freely, a mechanism for actuating the guide member in a cyclical, to-and-fro, movement, to bring the guide member in successive oscillations into the vicinity of each of the desired ends for the cord in the trajectory. The apparatus further includes a first motor imparting the desired movements to the actuating mechanism and a second motor for imparting to the depositing member support a cyclical movement synchronized with the actuating mechanism, allowing deflection of the final trajectory of the cord on the form.Type: ApplicationFiled: February 1, 2001Publication date: September 27, 2001Applicant: SEDEPROInventor: Jean-Claude Mayet
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Publication number: 20010020518Abstract: An oscillating arm apparatus for manufacturing a tire reinforcement from a single cord in which the cord is deposited in contiguous arches on a rigid core by a system of arms arranged in series conveying an eyelet in such a way as to allow it to traverse a core and thus deposit adjacent arches.Type: ApplicationFiled: February 1, 2001Publication date: September 13, 2001Applicant: SEDEPROInventor: Jean-Claude Mayet
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Patent number: 6257292Abstract: A tire including beads 2 without bead points. Each bead's inner edge 22 is, for instance, of rounded shape.Type: GrantFiled: June 5, 1996Date of Patent: July 10, 2001Assignee: SedeproInventor: Yves Herbelleau
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Patent number: 6203641Abstract: A module (1) used for the manufacture of tires, comprising an inflatable flexible bladder (10) provided with two beads (11) which is used for the assembling and vulcanization of the tire on the bladder, each bead being anchored on a plate (30, 31). The module (1) has at least one rigid wall mounted on a plate (30, 31) which is adjacent said flexible bladder (10) when the latter is inflated and can be retracted so as to be able to separate the tire from said module (1) after vulcanization and can be spread out radially so as to constitute a reference surface for the assembling of the tire.Type: GrantFiled: June 25, 1998Date of Patent: March 20, 2001Assignee: SedeproInventors: Daniel Laurent, Hervé Mousty
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Patent number: 6167934Abstract: A thread guide for an apparatus for the manufacture of a reinforcement from a thread deposited directly in its final position by projecting lengths of the thread for laying the thread onto a receiving surface in which a pair of deflectors is provided for guiding and controlling the braking pressure exerted on the threads before discharge from a projection orifice and in which at least one deflector is adjusted relative to the other by pivotally adjusting the deflector and locking it in place.Type: GrantFiled: May 26, 1999Date of Patent: January 2, 2001Assignee: SedeproInventor: Claude Debroche
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Patent number: 6143110Abstract: The present invention proposes a machine for the manufacture of tires on a core 1 which is used for the manufacture of said tires from the start of the assembling until the vulcanizing. The machine comprises, arranged adjacent to each other on a frame 5, a tire assembly station 2 comprising means for forming the raw tire by depositing the different compounds on the core 1 in the order and place required by the architecture of the tire, a vulcanization station 3, and a support handling station 4, as well as a crane 7 for transporting the core 1 between the different stations.Type: GrantFiled: December 2, 1998Date of Patent: November 7, 2000Assignee: SedeproInventor: Daniel Laurent
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Patent number: 6093267Abstract: The anchoring of the carcass reinforcing elements 1 is assured by circumferential cables 2, with the interposition of a connecting rubber composition 3. The circumferential cable 2 is arranged in several turns forming one or more helices. These circumferential cables have an operational elongation rate A.sub.f =A.sub.e +A.sub.p of more than 4%. This operational elongation rate does not include the specific elongation A.sub.s of the "cable" effect. The maximum stress R.sub.m of the cable 2 is preferably more than 2000 MPa. The cables have undergone a heat treatment which has, in combination, the features of being a recovery annealing treatment and which is carried out directly on cable comprising wires previously separately covered by an adherent coating.Type: GrantFiled: May 16, 1997Date of Patent: July 25, 2000Assignee: SedeproInventors: Jean-Claude Arnaud, Pedro Costa Pereira
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Patent number: 6017206Abstract: The sector mold (11) is designed so that, during the molding phase, the molding elements (10, 10a, 10b, 10c) are all equidistant due to devices (13) which assure an elastic repulsion between each other. Some of the elements glide circumferentially with respect to their sector (11) in the final closing phase. In this way, pinching of the rubber between sectors and the appearance of molding burrs are avoided.Type: GrantFiled: March 20, 1997Date of Patent: January 25, 2000Assignee: SedeproInventor: Alain Soulalioux
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Patent number: 5980810Abstract: The tire mold includes a peripheral ring split into two parts (G and D). The peripheral ring is laminated. It consists of a stack in the circumferential direction of a number of thin adjacent elements (1) made, for example, of metal sheets. The elements are of two different types: standard elements and intermediate elements, which follow on from one another circumferentially. The mold includes alignment means interacting with said intermediate elements in order to impose an orientation with respect to the radial direction on said intermediate elements. These means are, for example, grooves in which the intermediate elements are engaged.Type: GrantFiled: February 17, 1998Date of Patent: November 9, 1999Assignee: Sedepro Societe AnonymeInventor: Jean-Pierre Ladouce
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Patent number: 5971050Abstract: The apparatus for the manufacture of a reinforcement from a thread deposited directly in its final position by projecting lengths of the thread for laying the thread onto a receiving surface (S). The apparatus includes an assembly (5) comprising rollers (15) for the advancing of thread (1), a rotary conduit (2), a knife (3) for cutting the thread and freeing a length (10) upon each turn of said rotary conduit (2), and a thread guide (4) to receive the cut lengths of thread. The thread guide comprises deflectors (43) exerting a pressure on the thread. The pressure of the deflectors can be adjusted by screws (7).Type: GrantFiled: November 25, 1997Date of Patent: October 26, 1999Assignee: SedeproInventor: Claude Debroche
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Patent number: 5951815Abstract: An apparatus for the manufacture of a reinforcement from a thread directed in its final position by projecting lengths of the thread for laying the thread onto a receiving surface (S). The apparatus includes an assembly (5) having rollers (15) for the advancing of thread (1), a rotary conduit (2), a knife (3) for cutting the thread and freeing a length (10) upon each turn of said rotary conduit (2), and a thread guide (4) to receive the cut lengths of thread. The thread guide includes a cradle (41) provided with a fastening surface (42) which permits the detachable mounting of said thread guide (4) to said assembly (5).Type: GrantFiled: November 25, 1997Date of Patent: September 14, 1999Assignee: SedeproInventor: Claude Debroche