Patents by Inventor Benoit Buffetaud
Benoit Buffetaud 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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Patent number: 11685193Abstract: Tire tread (1) is divided into central part (20) and edge parts (30), central part (20) having width Lc between 40% and 90% of total width W of the tread. Edge parts (30) do not have any transverse cuts. Central part (20) has a tread pattern with circumferentially oriented sipe (21) and transversely oriented sipes (22, 22?, 22?) distributed around the periphery of the tread, such sipes having a depth at least equal to 60% of thickness E of material to be worn away and being interconnected to form a network. Such sipes are continued by hidden channels (210, 220). Central part (20) is delimited axially by transverse sipes (22?, 22?), each of which ends in end channel (221?, 221?) that opens onto tread surface (10) and extends into the thickness of the tread, and each end channel (221?, 221?) is connected to the network formed by the hidden channels.Type: GrantFiled: March 2, 2018Date of Patent: June 27, 2023Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Patrick Dayet, Benoit Buffetaud, Jacques Babaud
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Patent number: 10787042Abstract: The tire comprises a carcass reinforcement which extends into sidewalls. The tire is also provided with a protection device that protects against external attack. The protection device comprises a plurality of raised elements of height H that are arranged in the circumferential direction. The tire is also constructed such that each raised element is formed of at least two parts which are at least partially disjointed from one another along a separation zone. The separation zone is oriented substantially in the circumferential direction. Each part is able to come into contact with another part of the same raised element when one of the parts comes into contact with an external obstacle.Type: GrantFiled: October 16, 2015Date of Patent: September 29, 2020Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE, S.A.Inventors: Benoit Buffetaud, Gilles Godeau, Laurence Lapra, Mathieu Vandaele
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Publication number: 20200231008Abstract: Tire tread (1) is divided into central part (20) and edge parts (30), central part (20) having width Lc between 40% and 90% of total width W of the tread. Edge parts (30) do not have any transverse cuts. Central part (20) has a tread pattern with circumferentially oriented sipe (21) and transversely oriented sipes (22, 22?, 22?) distributed around the periphery of the tread, such sipes having a depth at least equal to 60% of thickness E of material to be worn away and being interconnected to form a network. Such sipes are continued by hidden channels (210, 220). Central part (20) is delimited axially by transverse sipes (22?, 22?), each of which ends in end channel (221?, 221?) that opens onto tread surface (10) and extends into the thickness of the tread, and each end channel (221?, 221?) is connected to the network formed by the hidden channels.Type: ApplicationFiled: March 2, 2018Publication date: July 23, 2020Inventors: Patrick DAYET, Benoit BUFFETAUD
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Publication number: 20180229557Abstract: The tire comprises a carcass reinforcement which extends into sidewalls. The tire is also provided with a protection device that protects against external attack. The protection device comprises a plurality of raised elements of height H that are arranged in the circumferential direction. The tire is also constructed such that each raised element is formed of at least two parts which are at least partially disjointed from one another along a separation zone. The separation zone is oriented substantially in the circumferential direction. Each part is able to come into contact with another part of the same raised element when one of the parts comes into contact with an external obstacle.Type: ApplicationFiled: October 16, 2015Publication date: August 16, 2018Applicants: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE, S.A.Inventors: Benoit BUFFETAUD, Gilles GODEAU, Laurence LAPRA, Mathieu VANDAELE
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Patent number: 9662940Abstract: Tire and tread for a vehicle for agricultural use having reduced attack to leading faces of tread bars, at axially outer ends thereof, by stubble remaining after harvest, thereby reducing risk of chunking of axially outer ends of the bars. The tire and tread has a plurality of bars, a bar having, in any axial plane (Pxy) parallel to the axis of rotation, a leading profile and a trailing profile. The angle (A) of the straight line (T) tangential to the leading profile at a point (M) on the leading profile, with respect to an equatorial plane (P), increases continuously, from an axially outermost point (E) of the leading profile, when the axial distance (L) between the point (M) and the point (E) increases, the angle (A) reaches a maximum value (Am) at a point of inflection (I) of the leading profile, and the radius of curvature (R) at any point (M), positioned axially between the axially outermost point (E) and the point of inflection (I), is at least equal to 0.4 times the height of the bar.Type: GrantFiled: May 22, 2012Date of Patent: May 30, 2017Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUES, S.A.Inventors: Patrick Vervået, Benoit Buffetaud, Arnaud Larregain
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Publication number: 20160303911Abstract: Tire with a radial carcass reinforcement, the tire comprising a crown reinforcement itself capped radially by a tread. The metal reinforcing elements of the carcass reinforcement are non-wrapped cords which, in the test referred to as the permeability test, return a flow rate of less than 20 cm3/min, over at least 50% of the meridian profile of the tire, the thickness of rubber compound between the interior surface of the tire cavity and a point of a metal reinforcing element of the carcass reinforcement being between 1.0 mm and 3.0 mm, the same thickness of rubber compound of two parts of the profile of the tire more or less centered on the orthogonal projection of the shoulder ends of the tire onto the interior surface of the tire being between 2.4 mm and 3.9 mm and the ratio of the thicknesses being greater than 1.10.Type: ApplicationFiled: November 25, 2014Publication date: October 20, 2016Inventors: Benoît BUFFETAUD, Sébastien NOEL, Gilles GODEAU
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Publication number: 20160303912Abstract: The invention relates to a tire with a radial carcass reinforcement, the said tire comprising a crown reinforcement itself capped radially by a tread. According to the invention, the metal reinforcing elements of the carcass reinforcement are wrapped cords which, in the test referred to as the permeability test, return a flow rate of less than 20 cm3/min and over the whole of the meridian profile of the tire, the thickness of rubber compound between the interior surface of the tire cavity and a point of a metal reinforcing element of the carcass reinforcement is between 1.0 mm and 3.0 mm.Type: ApplicationFiled: November 25, 2014Publication date: October 20, 2016Inventors: Benoit BUFFETAUD, Sébastien NOEL, Gilles GODEAU
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Publication number: 20140196823Abstract: Tire and tread for a vehicle for agricultural use having reduced attack to leading faces of tread bars, at axially outer ends thereof, by stubble remaining after harvest, thereby reducing risk of chunking of axially outer ends of the bars. The tire and tread has a plurality of bars, a bar having, in any axial plane (Pxy) parallel to the axis of rotation, a leading profile and a trailing profile. The angle (A) of the straight line (T) tangential to the leading profile at a point (M) on the leading profile, with respect to an equatorial plane (P), increases continuously, from an axially outermost point (E) of the leading profile, when the axial distance (L) between the point (M) and the point (E) increases, the angle (A) reaches a maximum value (Am) at a point of inflection (I) of the leading profile, and the radius of curvature (R) at any point (M) , positioned axially between the axially outermost point (E) and the point of inflection (I), is at least equal to 0.4 times the height of the bar.Type: ApplicationFiled: May 22, 2012Publication date: July 17, 2014Applicants: Michelin Recherche et Tecnique S.A., Compagnie General Des Establissments MichelinInventors: Patrick Vervaet, Benoit Buffetaud, Arnaud Larregain
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Patent number: D863213Type: GrantFiled: February 20, 2018Date of Patent: October 15, 2019Assignee: Compagnie Generale Des Etablissements MichelinInventors: Eddy Baranger, Benoit Buffetaud, Carlos-Manuel Dos-Santos