Patents by Inventor Frederic Pialot

Frederic Pialot 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: 9844913
    Abstract: An apparatus and a process for manufacturing a three-dimensional object by successive layer-by-layer consolidation of selected zones of a powder stratum, the consolidated zones corresponding to successive sections of the three-dimensional object, each layer being divided into a central internal portion and an external border, said process comprising the following steps in order: a—depositing a powder layer on a holder; b—fusing the external border of said powder layer by means of a laser beam originating from a first energy source by moving the laser beam of said first energy source relative to the object along a preset path that follows the contour of said external border corresponding to the contour of the cross section of the object so as to selectively fuse said layer; and c—fusing the central internal portion of the powder layer by means of an electron beam originating from a second energy source, by moving the electron beam of said second energy source relative to the object so as to sweep it over sa
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: December 19, 2017
    Assignees: Compagnie Generale des Etablissements Michelin, Michelin Recherche et Technique S.A.
    Inventors: Christophe Bessac, Frédéric Pialot, Gilles Walrand
  • Publication number: 20170348932
    Abstract: A method of manufacturing a tire includes steps of: providing a shoulder drum that includes shoulders having a height of at least equal to 25 mm; placing a carcass ply of a green tire on the shoulder drum; providing a winding of circumferential bead reinforcers around each end of the carcass ply, each winding having a number of turns providing a winding of circumferential bead reinforcers against each shoulder of the shoulder drum, each winding being in a spiral; and forming the green tire such that each end of the carcass ply does not have a turnup around the circumferential bead reinforcers, and the circumferential bead reinforcers are positioned in the green tire in a defined layout.
    Type: Application
    Filed: December 22, 2015
    Publication date: December 7, 2017
    Inventors: FRÉDÉRIC PIALOT, GÉRARD BOR, YVES POTIN, THOMAS FABRE, MATTHIEU LUTZ
  • Publication number: 20170216972
    Abstract: The invention relates to a method of manufacturing a strip (12) of rubber comprising discontinuous reinforcers, this method of manufacture comprising at least one step consisting in cutting the reinforcers of a strip (12) of rubber comprising reinforcers capable of being cut and progressing in a direction of conveying (DC). According to the invention, the method of manufacture is characterized in that each cutting of a reinforcer is performed by heating the reinforcer locally and remotely using a laser beam (18).
    Type: Application
    Filed: November 12, 2015
    Publication date: August 3, 2017
    Inventors: FRÉDÉRIC PIALOT, FRANCK DAUMAS, ALAIN SEVAILLE
  • Patent number: 9688039
    Abstract: The tire has a tread with a tread surface and at least one groove which has a bottom wall and two lateral walls. At least one flexible wall is arranged in the groove in such a way that as liquid flows, the flexible wall flexes to allow the liquid to pass. After molding, the tire has a connecting element with a thickness which is equal to that of the bottom wall so that, after vulcanizing, the connecting element connects the lateral walls to the bottom wall over a given depth. The connecting element is then cut at its junction with each of the lateral walls of the groove so as to obtain the flexible wall.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: June 27, 2017
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE, S.A.
    Inventor: Frederic Pialot, Jr.
  • Patent number: 9688106
    Abstract: Noise-reducing device intended to be added to a groove of the tread of a tire comprising an elastic sole preferably extending in a given longitudinal direction, wherein the said sole on one of its faces comprises one or several flexible walls the planes of which run substantially perpendicular to the longitudinal direction of the sole.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: June 27, 2017
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventor: Frédéric Pialot
  • Patent number: 9662844
    Abstract: Self-sealing elastomer composition that can be used especially as a puncture-resistant layer in an inflatable article, comprising: as predominant elastomer, an unsaturated diene elastomer; between 30 and 90 phr of a hydrocarbon resin; and 0 to less than 30 phr of a filler. Also disclosed is an article such as a tire provided with a puncture-resistant layer comprising the self-sealing elastomer composition. The puncture-resistant layer is advantageously combined with an airtight layer, for example based on butyl rubber, so as to form, in the inflatable article, a puncture-resistant airtight laminate.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: May 30, 2017
    Assignees: Michelin Recherche et Technique S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Bozena Voge, Didier Vasseur, Jose Merino Lopez, Frederic Pialot
  • Patent number: 9593266
    Abstract: A self-sealing elastomer composition that includes a diene elastomer, a hydrocarbon resin with a given softening temperature, and a liquid plasticizing agent, is manufactured according to a process that includes successive stages. In one stage, the hydrocarbon resin is incorporated in the diene elastomer by kneading the resin and the elastomer in a mixer at or up to a temperature referred to as “hot compounding” temperature, which is greater than the softening temperature of the resin, in order to obtain a masterbatch. In another stage, the liquid plasticizing agent is incorporated in the masterbatch by kneading the agent and the masterbatch in the same mixer or in another mixer, in order to obtain the self-sealing composition. The self-sealing composition then is formed dimensionally.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: March 14, 2017
    Assignees: Compagnie Generale Des Etablissements Michelin, Michelin Recherche Et Technique S.A.
    Inventors: José Merino Lopez, Frédéric Pialot, Damien Fombelle, Gérard Bor
  • Patent number: 9556329
    Abstract: A process for manufacturing a self-sealing elastomer composition, said process comprising the following steps: a masterbatch, comprising at least one diene elastomer and more than 30 phr of a hydrocarbon resin, is firstly manufactured by compounding these various components in a mixer at a temperature or up to a temperature called the “hot compounding” temperature which is above the softening point of the hydrocarbon resin; and then at least one crosslinking system is incorporated into the masterbatch thus prepared, by compounding everything in the same mixer or in a different mixer, at a temperature or up to a temperature which is kept below 100° C., in order to obtain said self-sealing composition.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: January 31, 2017
    Assignees: Michelin Recherche et Technique S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Frederic Pialot, Damien Fombelle, Bozena Voge, Jose Merino Lopez
  • Publication number: 20150307756
    Abstract: Process for the manufacture of a self-sealing elastomer composition comprising at least one diene elastomer, one hydrocarbon resin with a given softening temperature and one liquid plasticizing agent, characterized in that it comprises the following successive stages: (a) incorporating the hydrocarbon resin in the diene elastomer by kneading these components in a mixer at a temperature or up to a temperature referred to as “hot compounding” temperature greater than the softening temperature of the hydrocarbon resin, in order to obtain a masterbatch; (b) incorporating the liquid plasticizing agent in the masterbatch by kneading the combined mixture in the same mixer or in a different mixer, in order to obtain the self-sealing composition; and (c) forming the said self-sealing composition dimensionally.
    Type: Application
    Filed: January 26, 2011
    Publication date: October 29, 2015
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Jose MERINO LOPEZ, Frédéric PIALOT, Damien FOMBELLE, Gérard BOR
  • Publication number: 20150202687
    Abstract: Machine for the additive manufacture of a three-dimensional object by sintering or melting powder using a beam of energy acting on a layer of powder in a working zone, the said working zone being defined in the upper part of a build sleeve fixedly mounted in a chassis, in which sleeve the said object is manufactured, the said object being supported by a build plate which slides inside the said build sleeve when driven in vertical translation by the head of an actuating cylinder placed along the central axis of the said sleeve.
    Type: Application
    Filed: July 31, 2013
    Publication date: July 23, 2015
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE, S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Frederic Pialot, Miguel Torres-Catellano, Gilles Walrand, Benoit Pourcher
  • Publication number: 20150183953
    Abstract: A heat-expandable rubber composition includes, in a non-vulcanized state, from 50 to 100 phr of a copolymer based on styrene and butadiene; optionally from 0 to 50 phr of another diene elastomer, such as a polybutadiene or natural rubber; more than 50 phr of a reinforcing filler, such as silica and/or carbon black; between 5 and 25 phr of microparticles of sodium or potassium (hydrogen)carbonate having a median size between 1 and 50 um; and between 2 and 15 phr of a carboxylic acid have a melting point between 60° C. and 220° C., such as citric acid. The composition is useable in a tyre of a vehicle. When the (hydrogen)carbonate and the carboxylic acid are present in the composition at a total content greater than 10 phr, it is possible to significantly reduce tyre noise during running of the vehicle, without adversely affecting a curing rate of the composition.
    Type: Application
    Filed: July 10, 2013
    Publication date: July 2, 2015
    Inventors: Yu Shiraishi, Salvatore Pagano, Olivia Cuscito, Frédéric Pialot
  • Publication number: 20150174842
    Abstract: Method of manufacturing a tread of a tire made of rubber compound, the said tread comprising a tread surface, at least one groove having a bottom wall and two lateral walls extending from the bottom wall towards the tread surface, and at least one flexible wall arranged in the said groove in such a way as to be able to flex as liquid flows, the said method including molding the tread with at least one groove and at least one connecting element of a thickness equal to that of the wall which element is arranged inside the groove transversely to the longitudinal axis thereof, so that, after vulcanizing, the connecting element connects the lateral walls to the bottom wall over a given depth from the latter cutting the said connecting element at its junction with each of the lateral walls of the groove so as to obtain the flexible wall.
    Type: Application
    Filed: May 15, 2013
    Publication date: June 25, 2015
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE, S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventor: Frederic Pialot, JR.
  • Publication number: 20150139849
    Abstract: acting on a powder layer in a working zone, containing a device for layering said powder, said device including: means for storing powder, means for distributing powder that travel over the working zone to distribute powder in a layer having a final thickness for additive manufacturing, feeding means that transfer powder from storage means to distributing means, metering means that control the quantity of powder transferred from storage means to distributing means, said machine being wherein: storage means are positioned higher than the working zone, feeding means utilize gravity, feeding means and the metering means move with the distributing means, the machine has two separate working zones and two separate working trays that move independently of one another, each of the working trays is associated with only one working zone, and the layering device is common to both working zones.
    Type: Application
    Filed: June 3, 2013
    Publication date: May 21, 2015
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE, S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Frederic Pialot, JR., Gilles Walrand, Pierre Wiel
  • Publication number: 20150064048
    Abstract: Method for fabricating a three-dimensional object by successive consolidation, layer by layer, of selected regions of a layer of powder, consolidated regions corresponding to successive sections of the three-dimensional object, comprising in order: a—deposit layer of powder onto a support; b—fuse the layer of powder by a first laser energy source so as to obtain a fused layer corresponding to the section of the object and exhibiting a first state of its mechanical properties, c—heat at least a part of the fused layer by a second electron beam energy source to a temperature which follows a controlled variation over time so as to modify the first state of the fused layer and to obtain a consolidated layer with improved mechanical properties, d—repeat the preceding steps until several superposed consolidated layers are formed with improved properties forming the object.
    Type: Application
    Filed: February 19, 2013
    Publication date: March 5, 2015
    Inventors: Christophe Bessac, Stephanie Brochet, Frederic Pialot, Gilles Walrand
  • Publication number: 20140363585
    Abstract: A machine, which is usable for additive manufacturing by sintering or melting of powder using an energy beam acting on a powder layer in a working zone, includes a device for producing a layer of the powder. The device includes a storage apparatus for storing the powder, a distributor for distributing the powder, a feeder for transferring the powder from the storage apparatus to the distributor, and a dose controller for controlling a quantity of the powder transferred from the storage apparatus to the distributor. The distributor travels over the working zone in order to distribute the powder in a layer having a final thickness adapted to the additive manufacturing. The storage apparatus is located above the working zone such that the feeder utilizes gravity. The feeder and the dose controller are movable with the distributor.
    Type: Application
    Filed: December 19, 2012
    Publication date: December 11, 2014
    Inventors: Frédéric Pialot, Gilles Walrand, Pierre Wiel
  • Publication number: 20140348692
    Abstract: An apparatus and a process for manufacturing a three-dimensional object by successive layer-by-layer consolidation of selected zones of a powder stratum, the consolidated zones corresponding to successive sections of the three-dimensional object, each layer being divided into a central internal portion and an external border , said process comprising the following steps in order: a—depositing a powder layer on a holder; b—fusing the external border of said powder layer by means of a laser beam originating from a first energy source by moving the laser beam of said first energy source relative to the object along a preset path that follows the contour of said external border corresponding to the contour of the cross section of the object so as to selectively fuse said layer; and c—fusing the central internal portion of the powder layer by means of an electron beam originating from a second energy source, by moving the electron beam of said second energy source relative to the object so as to sweep it over s
    Type: Application
    Filed: December 21, 2012
    Publication date: November 27, 2014
    Applicants: COMPAGNIE GENERALE DES ESTABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventors: Christophe Bessac, Frédéric Pialot, Gilles Walrand
  • Patent number: 8833415
    Abstract: A pneumatic tire with a built-in self-sealing layer is described. The tire includes an outer rubbery tread, a carcass reinforcement, a gastight layer located at an inside position relative to the carcass reinforcement, a protective layer positioned innermost, and a self-sealing layer adjacent to the protective layer and located at an inside position relative to the gastight layer. The protective layer is a chlorinated thermoplastic polymer film.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: September 16, 2014
    Assignees: Compagnie Generale des Etablissements Michelin, Michelin Recherche et Technique S.A.
    Inventors: Marc Greiveldinger, Jose Merino Lopez, Michel Ahouanto, Frédéric Pialot
  • Publication number: 20140230985
    Abstract: Inner tube for a pneumatic tyre, notably for a bicycle, characterized in that it has an elastomeric gastight layer consisting of an elastomeric composition comprising at least one styrene/isobutylene/styrene thermoplastic elastomer (called “SIBS”) and in that it includes a self-sealing material disposed inside the cavity formed by the airtight elastomeric layer.
    Type: Application
    Filed: April 29, 2014
    Publication date: August 21, 2014
    Applicants: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Michelin Recherche et Technique S.A.
    Inventors: JOSE MERINO LOPEZ, PIERRE LESAGE, FREDERIC PIALOT, MICHEL AHOUANTO
  • Patent number: 8710140
    Abstract: Process for manufacturing a self-sealing elastomer composition, wherein the process comprises the following steps: firstly a masterbatch comprising at least one diene elastomer and a thermoplastic plasticizing hydrocarbon resin with a content greater than 30 phr is manufactured by compounding these various components in a mixer at a temperature or up to a temperature called the “hot compounding temperature” which is above the softening point of the hydrocarbon resin; and then at least one crosslinking system is incorporated into the masterbatch thus prepared, by compounding everything, in the same mixer or in a different mixer, at a temperature or up to a maximum temperature which is kept below 100° C., in order to obtain said self-sealing composition, and wherein at least one liquid plasticizer having a glass transition temperature (Tg) below ?20° C. is furthermore incorporated in an amount of less than 60 phr into said masterbatch or into said composition.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: April 29, 2014
    Assignees: Michelin Recherche et Technique S.A., Compagnie Generale des Etablissements Michelin
    Inventors: Frederic Pialot, Damien Fombelle, Bozena Voge, Jose Merino Lopez
  • Patent number: 8614276
    Abstract: A self-sealing elastomer composition that can be used especially as a puncture-resistant layer in an inflatable article, comprising: as predominant elastomer, an unsaturated diene elastomer; a thermoplastic hydrocarbon plasticizer resin with a weight content of between 30 and 90 phr; a liquid plasticizer, the Tg (glass transition temperature) of which is below ?20° C., with a weight content between 0 and 60 phr; and 0 to less than 30 phr of a filler. Also disclosed is an article such as a tire provided with the puncture-resistant layer comprising the self-sealing elastomer composition. The puncture-resistant layer is advantageously combined with an airtight layer, for example based on butyl rubber, so as to form, in the inflatable article, a puncture-resistant airtight laminate.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: December 24, 2013
    Assignees: Michelin Recherche et Technique S.A., Compagnie Generale des Etablissements Michelin
    Inventors: Bozena Voge, Didier Vasseur, Jose Merino Lopez, Frederic Pialot