Patents by Inventor Laurent Bucher
Laurent Bucher has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11655586Abstract: A cable as may be used in a tire, including a pneumatic tire. The cable is constructed in a manner that can provide a desired stiffness to a tire as well as a certain amount of structural elongation. The cable can be provided in a manner that does not necessarily result in an increase in the overall weight of the tire as would occur by e.g., increasing the diameter of a conventional cable construction.Type: GrantFiled: October 31, 2017Date of Patent: May 23, 2023Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Fanny Layec, Rèmi Pinaut, Marie Chassagne, Laurent Bucher
-
Publication number: 20200347547Abstract: A cable as may be used in a tire, including a pneumatic tire. The cable is constructed in a manner that can provide a desired stiffness to a tire as well as a certain amount of structural elongation. The cable can be provided in a manner that does not necessarily result in an increase in the overall weight of the tire as would occur by e.g., increasing the diameter of a conventional cable construction.Type: ApplicationFiled: October 31, 2017Publication date: November 5, 2020Inventors: Fanny Layec, Rèmi Pinaut, Marie Chassagne, Laurent Bucher
-
Patent number: 10787721Abstract: A steel wire has a microstructure that is completely ferritic, a mixture of ferrite and cementite or a mixture of ferrite and pearlite and has a weight content of carbon C such that C<0.05% and a weight content of chromium Cr such that Cr<12%. The process for drawing the wire comprises: at least one first uninterrupted series of steps of drawing the wire from a diameter D to a diameter d?, at least one second uninterrupted series of steps of drawing the wire of diameter d? to a diameter d, and one or more intermediate steps between the first and second uninterrupted series of steps of drawing the wire, the wire having a temperature less than or equal to 300° C. during the or each intermediate step.Type: GrantFiled: April 21, 2016Date of Patent: September 29, 2020Assignee: Compagnie Generale Des Etablissements MichelinInventors: Arnaud Verleene, Laurent Bucher, Olivier Giroux
-
Publication number: 20190009488Abstract: A method of creating a bead core for a tire is provided. The bead core is formed from a carbon fiber composite. The bead is formed into the shape of a hoop or ring before the carbon fiber composite is fully cured. The strain present in the carbon fiber composite after forming the ring is carefully controlled to be less than 0.1 percent. A tire incorporating such a bead core within the bead portions of the tire can have improved weight relative to a tire with conventional, steel bead core constructions.Type: ApplicationFiled: December 20, 2016Publication date: January 10, 2019Inventor: Laurent Bucher
-
Publication number: 20190001759Abstract: A bead core for a tire is provided. The bead core is formed from a carbon fiber composite. The bead is formed into the shape of a hoop or ring before the carbon fiber composite is fully cured. The strain present in the carbon fiber composite after forming the ring, via finally curing with energy sources (218) the carbon fiber composite firstly treated with a resin bath and shaped as a precursor (214), which is then wrapped onto a roller (216) before curing, is carefully controlled to be less than 0.1 percent. A tire incorporating such a bead core within the bead portions of the tire can have improved weight relative to a tire with conventional, steel bead core constructions.Type: ApplicationFiled: December 21, 2015Publication date: January 3, 2019Inventor: Laurent Bucher
-
Publication number: 20180319222Abstract: A vehicle tire having two beads comprising metal/non-metal hybrid bead cores intended to come into contact with a wheel rim and a carcass reinforcement anchored by a bead core located in each bead, wherein the bead core includes a plurality of separate spirally-wound reinforcements that are placed adjacent to one another in a substantially axial arrangement. The innermost of the spirally-wound reinforcements, the one farthest from the reinforcement turn-up, is formed of a first metal wire and there is a non-metallic wire forming a second reinforcement. The metal wire has an elongation at break that is at least 40% greater than an elongation at break of the nonmetallic wire or alternatively at least 100% or at least 200% greater than the elongation at break of the non-metallic wire. Optionally wires of other metals or nonmetals may be useful for forming others of the plurality of spirally-wound reinforcements.Type: ApplicationFiled: October 28, 2016Publication date: November 8, 2018Applicant: Compagnie Generale des Etablissements MichelinInventor: Laurent BUCHER
-
Publication number: 20180100215Abstract: A steel wire has a microstructure that is completely ferritic, a mixture of ferrite and cementite or a mixture of ferrite and pearlite and has a weight content of carbon C such that C<0.05% and a weight content of chromium Cr such that Cr<12%. The process for drawing the wire comprises: at least one first uninterrupted series of steps of drawing the wire from a diameter D to a diameter d?, at least one second uninterrupted series of steps of drawing the wire of diameter d? to a diameter d, and one or more intermediate steps between the first and second uninterrupted series of steps of drawing the wire, the wire having a temperature less than or equal to 300° C. during the or each intermediate step.Type: ApplicationFiled: April 21, 2016Publication date: April 12, 2018Inventors: ARNAUD VERLEENE, LAURENT BUCHER, OLIVIER GIROUX
-
Publication number: 20180056722Abstract: A reinforcing assembly for a tire includes a knit and a plurality of reinforcing elements. The knit includes a right side and a wrong side. The reinforcing elements extend parallel to one another and each criss-cross the knit over at least a portion of the knit. The knit is arranged in such a way that the right side is positioned radially outside relative to the wrong side.Type: ApplicationFiled: February 25, 2016Publication date: March 1, 2018Inventors: BASTIEN LIMOZIN, SÉBASTIEN RIGO, LAURENT BUCHER
-
Patent number: 9902212Abstract: A bead wire for a tire includes a core, an outer layer, and at least one intermediate layer. The core includes at least one yarn of a multifilament textile fiber embedded in an organic matrix. The outer layer includes an outer-layer metal wire wound around the core. Each intermediate layer includes an intermediate-layer metal wire wound around the core. Each intermediate layer is disposed between the core and the outer layer.Type: GrantFiled: June 5, 2013Date of Patent: February 27, 2018Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Laurent Bucher, Jean-Michel Huyghe, Antonio Delfino, Jean-Paul Meraldi, Thibault Rapenne
-
Publication number: 20170043626Abstract: A tire having a radial carcass reinforcement having at least one layer of metal reinforcing elements. The tire includes a crown reinforcement, itself radially capped by a tread. The tread is connected to two beads by two sidewalls. The reinforcing elements of at least one layer of the carcass reinforcement have at least one filamentary element and at least one sheath covering the at least one filamentary element. The at least one sheath includes at least one layer of a thermoplastic polymer composition. The thickness of rubber compound between the internal surface of the tire cavity and the point of a metal reinforcing element of the carcass reinforcement that is closest to the internal surface of the cavity is less than or equal to 3.8 mm.Type: ApplicationFiled: April 23, 2015Publication date: February 16, 2017Inventors: Laurent BUCHER, Philippe LESOEURS, Sébastien RIGO, Aurore LARDJANE, Sébastien NOEL, François BARBARIN
-
Publication number: 20170043624Abstract: The tire (10) comprises a crown (12) surmounted by a tread (22), two sidewalls (24), two beads (26), each sidewall (24) connecting each bead (26) to the crown (12), a carcass reinforcement (34) anchored in each of the beads (26) and extending in the sidewalls (24) as far as the crown (12). The carcass reinforcement (34) comprises one carcass ply (44) comprising carcass reinforcing elements (46) having a mean laying pitch (P) strictly greater than 1.5 mm. The carcass ply (44) comprises an elastomer matrix (54) in which the carcass reinforcing elements (46) are embedded, each carcass reinforcing element (46) comprising: one filamentary element (56), and one sheath (58) coating the filamentary element (56) and comprising at least one layer (60) of a thermoplastic polymer composition.Type: ApplicationFiled: April 22, 2015Publication date: February 16, 2017Inventors: Laurent BUCHER, Philippe LESOEURS, Sébastien RIGO, Aurore LARDJANE, Sébastien NOEL
-
Publication number: 20160281297Abstract: The steel wire having a completely ferritic, pearlitic or ferritic-pearlitic microstructure has a weight content of carbon C such that 0.05% C<0.4% and a weight content of chromium Cr such that Cr<12%. The process for drawing the wire comprises: at least one first uninterrupted series of steps (4001-400m) of drawing the wire from a diameter D to a diameter d?, at least one second uninterrupted series of steps (7001-700m) of drawing the wire of diameter d? to a diameter d, one or more intermediate steps between the first and second uninterrupted series of steps (4001-400m, 7001-700m) of drawing the wire, the wire having a temperature less than or equal to 300° C. during the or each intermediate step.Type: ApplicationFiled: November 21, 2014Publication date: September 29, 2016Inventors: Arnaud VERLEENE, Laurent BUCHER, Olivier GIROUX
-
Patent number: 9108467Abstract: An improvement in an airplane tire to obtain a more even distribution of temperature within the crown of the tire. An airplane tire comprises a crown reinforced by a working reinforcement (3), comprising at least one layer of working reinforcement (30) made up of axially juxtaposed substantially circumferential strips (31) made up of mutually parallel textile reinforcing elements (32) coated with a polymer coating material (33). Each strip is in contact, over at least its radially inner axial face, with a heat transfer element (34) comprising at least one heat-conducting material with thermal conductivity at least equal to 50 times the thermal conductivity of the polymer coating material. The product of the thickness of a heat transfer element by the tension modulus of a heat transfer element is at most equal to 0.3 times the product of the thickness of the strip by the tension modulus of the strip.Type: GrantFiled: July 5, 2011Date of Patent: August 18, 2015Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Michelin Recherche et Technique S.A.Inventors: Vincent Estenne, Laurent Bucher
-
Publication number: 20150174968Abstract: A single-layer bead wire for a tyre includes a core and an outer layer. The core includes at least one yarn of a multifilament textile fibre embedded in an organic matrix. The outer layer includes a metal wire wound around and in contact with the core.Type: ApplicationFiled: June 5, 2013Publication date: June 25, 2015Inventors: Jean-Michel Huyghe, Laurent Bucher, Antonio Delfino, Jean-Paul Meraldi, Thibault Rapenne
-
Publication number: 20150144245Abstract: A bead wire for a tyre includes a core, an outer layer, and at least one intermediate layer. The core includes at least one yarn of a multifilament textile fibre embedded in an organic matrix. The outer layer includes an outer-layer metal wire wound around the core. Each intermediate layer includes an intermediate-layer metal wire wound around the core. Each intermediate layer is disposed between the core and the outer layer.Type: ApplicationFiled: June 5, 2013Publication date: May 28, 2015Inventors: Laurent Bucher, Jean-Michel Huyghe, Antonio Delfino, Jean-Paul Meraldi, Thibault Rapenne
-
Publication number: 20150122394Abstract: A bead wire for a tyre includes a core and an outer layer. The core includes a plurality of circumferential windings of at least one core yarn, with each core yarn including a core multifilament textile fibre embedded in an organic core matrix. The outer layer includes a single outer-layer yarn, with the outer-layer yarn including an outer-layer multifilament textile fibre embedded in an organic outer-layer matrix. The outer-layer yarn is wound around the core.Type: ApplicationFiled: June 5, 2013Publication date: May 7, 2015Applicant: Michelin Recherche et Technique S.A.Inventors: Jean-Michel Huyghe, Laurent Bucher, Antonio Delfino, Jean-Paul Meraldi, Thibault Rapenne
-
Publication number: 20130206306Abstract: An improvement of an airplane tire to obtain a more even distribution of temperature within the crown of the tire. An airplane tire comprises a crown reinforced by a working reinforcement (3), comprising at least one layer of working reinforcement (30) comprising axially juxtaposed substantially circumferential strips (31) comprising mutually parallel textile reinforcing elements (32) coated with a polymer coating material (33). Each strip of at least one layer of working reinforcement is in contact, over at least its radially inner axial face, with a heat transfer element (34) comprising mutually parallel substantially circumferential threadlike elements (35) made of a heat-conducting material with thermal conductivity at least equal to 50 times the thermal conductivity of the polymer coating material. Heat transfer element (34) comprises substantially circumferential threadlike elements (35) that have periodic geometric oscillations parallel to the strip in contact.Type: ApplicationFiled: July 5, 2011Publication date: August 15, 2013Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Vincent Estenne, Laurent Bucher
-
Publication number: 20130199689Abstract: An improvement in an airplane tire to obtain a more even distribution of temperature within the crown of the tire. An airplane tire comprises a crown reinforced by a working reinforcement (3), comprising at least one layer of working reinforcement (30) made up of axially juxtaposed substantially circumferential strips (31) made up of mutually parallel textile reinforcing elements (32) coated with a polymer coating material (33). Each strip is in contact, over at least its radially inner axial face, with a heat transfer element (34) comprising at least one heat-conducting material with thermal conductivity at least equal to 50 times the thermal conductivity of the polymer coating material. The product of the thickness of a heat transfer element by the tension modulus of a heat transfer element is at most equal to 0.3 times the product of the thickness of the strip by the tension modulus of the strip.Type: ApplicationFiled: July 5, 2011Publication date: August 8, 2013Applicants: Michelin Recherche et Technique S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Vincent Estenne, Laurent Bucher