Patents by Inventor Jean-Charles Lacour
Jean-Charles Lacour 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).
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Publication number: 20080295933Abstract: Insert for supporting the tread of a tire and intended to be positioned around the bearing surface of a wheel and including a housing for an electronic module opening radially internally relative to the insert, characterized in that the insert comprises a support part intended to bear the load of the tire under runflat conditions, and an axially adjacent locking part intended to lock one of the beads of the tire onto its wheel seat and in that the housing is positioned in the bead locking part.Type: ApplicationFiled: July 19, 2006Publication date: December 4, 2008Applicant: MICHELIN RECHERCHE ET TECHNIQUE S.A.Inventors: Jean-Charles Lacour, Mickael Lion, Johathan Champredonde
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Publication number: 20080295942Abstract: Support element designed to be fitted to a rim inside a vehicle tire, for supporting the tread of this tire in the event of loss of inflation pressure, including a base, a cover and an annular body in which each supporting partition of the annular body is in the form of an oblique parallelepiped with two circumferentially oriented outer faces arranged on either side of said support element and two faces inclined relative to the circumferential direction by an angle ?, two adjacent supporting partitions form a V-shaped pattern, and, at the base of the V, two adjacent supporting partitions are separated by a narrow axial slit extending radially through the whole of the annular body.Type: ApplicationFiled: July 19, 2006Publication date: December 4, 2008Applicant: MICHELIN RECHERCHE ET TECHNIQUE S.A.Inventors: Jean-Charles Lacour, Sebastein Rigo, Denis Morin
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Patent number: 7287564Abstract: 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.Type: GrantFiled: June 16, 2003Date of Patent: October 30, 2007Assignee: Michelin Recherche et Technique S.A.Inventors: Jean-Pierre Pompier, Jean-Jacques Drieux, Jean-Charles Lacour
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Publication number: 20070000588Abstract: A safety assembly (1) for a tire allowing running at reduced pressure. A rim (2) is equipped with a valve, and a tire (4) is mounted on the rim. A structural support (3) rests on the rim (2) and is enclosed in the space between the rim and the internal wall of the tire. The two axially opposed ends (31, 32) of the base (30) of the support (3) form an airtight joint with the part of the rim (2) on which they rest. The space between the rim (20) and the base of the support (30) and situated between the two airtight joints communicates with atmospheric pressure by means of a duct (26).Type: ApplicationFiled: June 30, 2006Publication date: January 4, 2007Applicant: Michelin Recherche et Technique S.A.Inventors: Philippe Tramond, Jean-Charles Lacour
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Publication number: 20060249235Abstract: Run-flat support (1, 2) adapted to be mounted on a rim inside a tire, comprising a substantially cylindrical base (100) adapted to fit around the rim, a substantially cylindrical crown (101) and an annular body (102) linking the base and the crown. The body is composed of a plurality of generally radial partitions (103) distributed over the circumference of the support and of generally radial junctions (106) extending circumferentially and connected by their ends to two adjacent partitions. These junctions (106) are interrupted by very narrow axial incisions (104) extending radially over the entirety of the junction and opening axially on either side of the junction.Type: ApplicationFiled: May 3, 2006Publication date: November 9, 2006Applicant: Michelin Recherche et Technique S.A.Inventor: Jean-Charles Lacour
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Publication number: 20060201597Abstract: A run-flat support adapted to be mounted on a rim inside a tire, comprising a substantially cylindrical base adapted to conform to the rim, a substantially cylindrical crown and an annular body linking the base and the crown. The body is composed of a plurality of generally radial partitions distributed over the circumference of said support and of generally radial junctions extending circumferentially and connected by their ends to two adjacent partitions. These junctions are interrupted by very narrow axial incisions extending radially over the entirety of the junction and opening axially on either side of said junction.Type: ApplicationFiled: May 4, 2006Publication date: September 14, 2006Applicant: Michelin Recherche et Technique S.A.Inventor: Jean-Charles Lacour
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Publication number: 20030209301Abstract: 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.Type: ApplicationFiled: June 16, 2003Publication date: November 13, 2003Applicant: Michelin Recherche et Technique S.A.Inventors: Jean-Pierre Pompier, Jean-Jacques Drieux, Jean-Charles Lacour
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Patent number: 6598633Abstract: 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.Type: GrantFiled: November 1, 2000Date of Patent: July 29, 2003Assignee: Michelin Recherche et Technique S.A.Inventors: Jean-Pierre Pompier, Jean-Jacques Drieux, Jean-Charles Lacour
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Patent number: 6463972Abstract: A safety support including a body and a base having a substantially cylindrical radially internal face intended to be mounted around a tire rim, the base including a set of substantially inextensible circumferential reinforcing wires wrapped in an elastomer substance, the support being provided by injection under pressure into a closed cavity from feed points located on the support body, the base including supplementary reinforcing elements arranged radially, at least in part, externally relative to all the circumferential reinforcing wires and axially with respect to the feeding points.Type: GrantFiled: November 8, 1999Date of Patent: October 15, 2002Assignee: Michelin Recherche et Technique S.A.Inventor: Jean-Charles Lacour
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Patent number: 6418992Abstract: 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).Type: GrantFiled: January 24, 2000Date of Patent: July 16, 2002Inventors: Jean-Jacques Drieux, Jean-Charles Lacour, Olivier Muhlhoff, Jean-Pierre Pompier
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Patent number: 6415839Abstract: A rim having a bearing support located between its two rim seats, which bearing support is intended to receive a support ring, is characterized in that this bearing surface comprises at least one surface clamping part, each surface clamping part being regularly distributed in the circumferential direction over the bearing surface and having a maximum external development Ds, measured on an enveloping surface concentric to the bearing surface, which is greater than the development Dp of the bearing surface, in order to create mechanical clamping between a support ring and the surface clamping part which is appropriate to ensure holding of the ring on the bearing surface during travel.Type: GrantFiled: October 31, 2000Date of Patent: July 9, 2002Assignee: Michelin Recherche et Technique S.A.Inventors: Jean-Pierre Pompier, Jean-Jacques Drieux, Jean-Charles Lacour
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Patent number: 6387311Abstract: A mold and a method for manufacturing a support to be mounted on a rim of a vehicle by injection or transfer molding in which the molding material is force fed into a closed molding cavity. The mold includes an internal core for molding the inner surface of the support, upper and lower platens or shells for molding the body of the support and segments for molding the outer bearing surface. The mold includes a mechanism capable of imparting relative movement to the platens or shells which not only permits opening and closing of the mold but also ensures the specific movements of the core. The core includes at least three separable rigid parts: a center part and at least two complementary parts. The center part has two flat bearings, inclined at the same angle relative to the axis of the mold. These flat bearings are designed to cooperate with corresponding bearings arranged on each of the complementary parts to place the mold in a molding condition or in a stripping condition.Type: GrantFiled: November 12, 1999Date of Patent: May 14, 2002Assignee: Michelin Recherche et Technique S.A.Inventors: Jean-Charles Lacour, Didier Voisin
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Patent number: 6092575Abstract: 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 a rim flange (24).Type: GrantFiled: January 22, 1997Date of Patent: July 25, 2000Assignee: Compagnie Generale des Etablissements Michelin - Michelin & CieInventors: Jean-Jacques Drieux, Jean-Charles Lacour, Olivier Muhlhoff, Jean-Pierre Pompier
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Patent number: 5891279Abstract: Safety support essentially made of a flexible elastomeric material includ a substantially cylindrical base, a substantially cylindrical cap and an annular body connecting the base and the cap. The body has, on one side, which is intended to be placed on the outboard side of the vehicle, a plurality of cavities extending substantially axially as far as at least halfway into said body without passing through it.Type: GrantFiled: March 12, 1997Date of Patent: April 6, 1999Assignee: Compagnie Generale des Etablissements Michelin--Michelin & CieInventor: Jean-Charles Lacour
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Patent number: 5785781Abstract: 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 a rim flange (24).Type: GrantFiled: January 22, 1997Date of Patent: July 28, 1998Assignees: Compagnie Generale Des Etablissements Michelin, Michelin & CieInventors: Jean-Jacques Drieux, Jean-Charles Lacour, Olivier Muhlhoff, Jean-Pierre Pompier
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Patent number: 5634993Abstract: A tire (1) a mounting rim (2) therefor, and a prop 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 elongatable and circumferentially unstretchable rubber supporting ring (3) and a rim flange (24).Type: GrantFiled: June 7, 1995Date of Patent: June 3, 1997Assignee: Compagnie Generale Des Etablissements Michelin-Michelin & CieInventors: Jean-Jacques Drieux, Jean-Charles Lacour, Olivier Muhlhoff, Jean-Pierre Pompier
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Patent number: 4860810Abstract: A bead ring for reinforcing a bead of a pneumatic tire having a carcass ply comprises, on the bead ring surface, ribs made of a material whose secant modulus in extension, measured at 10% elongation and at 160.degree. C., is equal to at least 70 MPa. Pneumatic tires have such a bead ring, the carcass ply being in contact with the ribs.Type: GrantFiled: July 9, 1987Date of Patent: August 29, 1989Assignee: Compagnie Generale des Etablissements MichelinInventor: Jean-Charles Lacour