Patents by Inventor Laurent Joubaud
Laurent Joubaud 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: 8833106Abstract: A reformable area and a non-reformable area of a sheet of glass material are heated to a first temperature corresponding to a first viscosity. The reformable area is subsequently locally heated to a second temperature corresponding to a second viscosity, where the second viscosity is lower than the first viscosity. A bend is formed in the reformable area during the local heating of the reformable area by contacting a first pusher with the non-reformable area and translating the first pusher along a linear path to apply a pushing force to the non-reformable area that results in the bend in the reformable area or by contacting a second pusher with an edge area of the reformable area and rotating the pusher along a circular path to apply a pushing force to the edge area of the reformable area that results in the bend in the reformable area.Type: GrantFiled: September 18, 2012Date of Patent: September 16, 2014Assignee: Corning IncorporatedInventors: Thierry Luc Alain Dannoux, Arnaud Dejean, Paul Louis Florent Delautre, Allan Mark Fredholm, Laurent Joubaud, Stephane Poissy
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Publication number: 20140147624Abstract: Methods of forming a glass article are disclosed. In one embodiment, a method of forming a glass article includes translating a pulsed laser beam on a glass substrate sheet to form a laser damage region between a first surface and a second surface of the glass substrate sheet. The method further includes applying an etchant solution to the glass substrate sheet to remove a portion of the glass substrate sheet about the laser damage region. The method may further include strengthening the glass substrate sheet by an ion-exchange strengthening process, and coating the glass substrate sheet with an acid-resistant coating. Also disclosed are methods where the laser damage region has an initial geometry that changes to a desired geometry following the reforming of the glass substrate sheet such that the initial geometry of the laser damage region compensates for the bending of the glass substrate sheet.Type: ApplicationFiled: November 27, 2013Publication date: May 29, 2014Applicant: CORNING INCORPORATEDInventors: Alexander Mikhailovich Streltsov, Laurent Joubaud, Daniel Ralph Harvey, Yuhui Jin, Brandon A. Bazemore, Diane Kimberlie Guilfoyle, Jeffrey A. Decker
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Publication number: 20140075996Abstract: A reformable area and a non-reformable area of a sheet of glass material are heated to a first temperature corresponding to a first viscosity. The reformable area is subsequently locally heated to a second temperature corresponding to a second viscosity, where the second viscosity is lower than the first viscosity. A bend is formed in the reformable area during the local heating of the reformable area by contacting a first pusher with the non-reformable area and translating the first pusher along a linear path to apply a pushing force to the non-reformable area that results in the bend in the reformable area or by contacting a second pusher with an edge area of the reformable area and rotating the pusher along a circular path to apply a pushing force to the edge area of the reformable area that results in the bend in the reformable area.Type: ApplicationFiled: September 18, 2012Publication date: March 20, 2014Inventors: Thierry Luc Alain Dannoux, Arnaud Dejean, Paul Louis Florent Delautre, Allan Mark Fredholm, Laurent Joubaud, Stephane Poissy
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Publication number: 20140065366Abstract: Formed glass sheets comprise a substantially flat portion and a curved portion extending from the flat portion. The flat portion and the curved portion each respectively define an outer surface and an inner surface with an average thickness between the respective outer and inner surfaces of from about 0.3 mm to about 2 mm. The surface roughness (Ra) of at least one of the respective outer and inner surfaces is less than or equal to about 0.5 nm.Type: ApplicationFiled: August 29, 2013Publication date: March 6, 2014Applicant: Corning IncorporatedInventor: Laurent Joubaud
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Publication number: 20140033770Abstract: An apparatus and method for precision bending a glass sheet that includes an oven for heating the glass sheet to a temperature near the softening temperature of the glass sheet. A stage for supporting the glass sheet. A pair of reference surfaces on the stage for precisely locating the glass sheet on the stage. At least one bending mechanism on a pair of arms inside the oven for bending an edge portion of the glass sheet. Inward facing first stop surfaces on the arms that contact reference surfaces on the stage for precisely locating the bending mechanism on the arms relative to the stage and the glass sheet.Type: ApplicationFiled: October 2, 2013Publication date: February 6, 2014Applicant: Corning IncorporatedInventors: Thierry Luc Alain Dannoux, Allan Mark Fredholm, Laurent Joubaud, Sophie Peschiera, Stephane Poissy
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Publication number: 20140026621Abstract: Please replace the originally filed abstract with the following amended abstract: An apparatus and method for precision bending a glass sheet that includes an oven for heating the glass sheet to a temperature near the softening temperature of the glass sheet. A stage for supporting the glass sheet. A pair of reference surfaces on the stage for precisely locating the glass sheet on the stage. At least one bending mechanism on a pair of arms inside the oven for bending an edge portion of the glass sheet. Inward facing first stop surfaces on the arms that contact reference surfaces on the stage for precisely locating the bending mechanism on the arms relative to the stage and the glass sheet.Type: ApplicationFiled: October 2, 2013Publication date: January 30, 2014Applicant: Corning IncorporatedInventors: Thierry Luc Alain Dannoux, Allan Mark Fredholm, Laurent Joubaud, Sophie Peschiera, Stephane Poissy
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Publication number: 20130329346Abstract: A method of bending a glass sheet includes placing the glass sheet on a support and heating the entire glass sheet to a first viscosity. A band of heat is applied and translated along the selected region of the glass sheet in which a predetermined is to be formed over a time period to form the predetermined in the selected region. The band of heat sectionally heats the selected region to a second viscosity that is lower than the first viscosity. An actuated force is applied to the glass sheet to incrementally form the predetermined bend in the selected region according to the location of the band of heat in the selected region.Type: ApplicationFiled: June 3, 2013Publication date: December 12, 2013Inventors: Thierry Luc Alain Dannoux, Paul Louis Florent Delautre, Patrick Jean Pierre Herve, Laurent Joubaud, Stephane Poissy
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Publication number: 20130319051Abstract: A glass forming system (200) and a method are described herein for forming a glass sheet (230). In one example, the glass forming system and method can use a glass composition with a liquidus viscosity less than 1000 poises to continuously form a glass sheet.Type: ApplicationFiled: May 26, 2011Publication date: December 5, 2013Inventors: Antoine Gaston Denis Bisson, Allan Mark Fredholm, Laurent Joubaud
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Patent number: 8549885Abstract: An apparatus and method for precision bending a glass sheet that includes an oven for heating the glass sheet to a temperature near the softening temperature of the glass sheet. A stage for supporting the glass sheet. A pair of reference surfaces on the stage for precisely locating the glass sheet on the stage. At least one bending mechanism on a pair of arms inside the oven for bending an edge portion of the glass sheet. Inward facing first stop surfaces on the arms that contact reference surfaces on the stage for precisely locating the bending mechanism on the arms relative to the stage and the glass sheet.Type: GrantFiled: November 23, 2011Date of Patent: October 8, 2013Assignee: Corning IncorporatedInventors: Thierry L. A. Dannoux, Allan M. Fredholm, Laurent Joubaud, Sophie Peschiera, Stephane Poissy
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Patent number: 8464554Abstract: An apparatus for stabilizing a flow of a viscous material, such as a molten glass or glass ceramic material in a tube or rod forming process is disclosed. The apparatus comprises a stabilization member through which the molten glass is passed after leaving the nozzle of a forming vessel. The stabilization member is positioned a finite distance below the nozzle. The column of viscous material is supported by a wall of the stabilization member, or by a gaseous film disposed between the column and the stabilization member. A method of stabilizing the flow of viscous material after it leaves the nozzle during a drawing process is also disclosed.Type: GrantFiled: February 22, 2011Date of Patent: June 18, 2013Assignee: Corning IncorporatedInventors: Allan M. Fredholm, Laurent Joubaud
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Publication number: 20130125589Abstract: An apparatus and method for precision bending a glass sheet that includes an oven for heating the glass sheet to a temperature near the softening temperature of the glass sheet. A stage for supporting the glass sheet. A pair of reference surfaces on the stage for precisely locating the glass sheet on the stage. At least one bending mechanism on a pair of arms inside the oven for bending an edge portion of the glass sheet. Inward facing first stop surfaces on the arms that contact reference surfaces on the stage for precisely locating the bending mechanism on the arms relative to the stage and the glass sheet.Type: ApplicationFiled: November 23, 2011Publication date: May 23, 2013Inventors: Thierry L.A. Dannoux, Allan M. Fredholm, Laurent Joubaud, Sophie Peschiera, Stephane Poissy
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Publication number: 20130086948Abstract: An apparatus and methods for bending sheet glass are disclosed. The present invention improves on the state-of-the-art by providing apparatus and methods that prevent unwanted distortion of the glass sheet. The apparatus and methods utilize localized heating at the bend to allow for overall glass sheet temperatures to be reduced, along with optional mechanical devices for improved bend quality.Type: ApplicationFiled: October 8, 2012Publication date: April 11, 2013Inventors: Antoine Gaston Denis Bisson, Curtis Richard Cowles, Laurent Joubaud, David John McEnroe, Aniello Mario Palumbo
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Patent number: 8397540Abstract: A deformation apparatus for reforming a glass sheet comprises a central portion, a first edge mold movably coupled to a first end of the central portion and configured to be linearly translated along a linear mold axis in a first direction toward the central portion. The deformation apparatus further includes a second edge mold movably coupled to the second end of the central portion and configured to be linearly translated along the linear mold axis in a second direction opposite the first direction and toward the central portion. Methods are also provided including the step of cooling a reformed glass sheet, wherein a greater shrinkage of the reformed glass sheet relative to a shrinkage of the deformation apparatus is accommodated by a movement of at least the first edge mold in a first direction toward the central portion of the deformation apparatus.Type: GrantFiled: May 5, 2011Date of Patent: March 19, 2013Assignee: Corning IncorporatedInventors: Thierry Luc Alain Dannoux, Paul Delautre, Allan Mark Fredholm, Laurent Joubaud
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Publication number: 20120279257Abstract: A deformation apparatus for reforming a glass sheet comprises a central portion, a first edge mold movably coupled to a first end of the central portion and configured to be linearly translated along a linear mold axis in a first direction toward the central portion. The deformation apparatus further includes a second edge mold movably coupled to the second end of the central portion and configured to be linearly translated along the linear mold axis in a second direction opposite the first direction and toward the central portion. Methods are also provided including the step of cooling a reformed glass sheet, wherein a greater shrinkage of the reformed glass sheet relative to a shrinkage of the deformation apparatus is accommodated by a movement of at least the first edge mold in a first direction toward the central portion of the deformation apparatus.Type: ApplicationFiled: May 5, 2011Publication date: November 8, 2012Inventors: Thierry Luc Alain Dannoux, Paul Delautre, Allan Mark Fredholm, Laurent Joubaud
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Publication number: 20120131961Abstract: A method for bending a sheet of material into a shaped article includes providing the sheet of material. A reformable area and a non-reformable area of the sheet of material are heated to a first temperature range corresponding to a first viscosity range. The reformable area of the sheet of material is subsequently heated to a second temperature range corresponding to a second viscosity range. The reformable area of the sheet of material is reformed into a selected shape by at least one of sagging the reformable area of the sheet of material and applying a force to the sheet of material outside of or near a boundary of the reformable area.Type: ApplicationFiled: November 22, 2011Publication date: May 31, 2012Inventors: Thierry Luc Alain Dannoux, Arnaud Dejean, Allan Mark Fredholm, Patrick Jean Pierre Herve, Laurent Joubaud, Sophie Peschiera, Stephane Poissy
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Patent number: 8168552Abstract: The subject of the invention is a method of refining glass for which the temperature (T log 2) corresponding to a viscosity of 100 poise (10 Pa·s) is greater than or equal to 1480° C., characterized in that sulfides are used as a refining agent. It also relates to the glass article capable of being obtained by this method.Type: GrantFiled: October 9, 2006Date of Patent: May 1, 2012Assignee: Saint-Gobain Glass FranceInventors: Laurent Joubaud, Dorothee Martin
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Publication number: 20120042692Abstract: An apparatus for stabilizing a flow of a viscous material, such as a molten glass or glass ceramic material in a tube or rod forming process is disclosed. The apparatus comprises a stabilization member through which the molten glass is passed after leaving the nozzle of a forming vessel. The stabilization member is positioned a finite distance below the nozzle. The column of viscous material is supported by a wall of the stabilization member, or by a gaseous film disposed between the column and the stabilization member. A method of stabilizing the flow of viscous material after it leaves the nozzle during a drawing process is also disclosed.Type: ApplicationFiled: February 22, 2011Publication date: February 23, 2012Inventors: Allan M. Fredholm, Laurent Joubaud
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Publication number: 20090235695Abstract: A furnace for melting batch materials, including, upstream in the direction of flow of the molten materials, a zone for introducing solid batch materials, and including a submerged burner and an overhead surface burner providing a flame that touches the surface of the glass at the point where the bubble from the submerged burner emerges. This association of an overhead, especially roof-mounted, burner and a submerged burner reduces the quantity of batch stones that may be sent toward the downstream end of the furnace.Type: ApplicationFiled: April 4, 2007Publication date: September 24, 2009Applicant: SAINT-GOBAIN GLASS FRANCEInventors: Laurent Pierrot, Frederic Lopepe, Biagio Palmieri, Laurent Joubaud, Philippe Pedeboscq, Philippe Meunier
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Publication number: 20080269039Abstract: The subject of the invention is a method of refining glass for which the temperature (T log 2) corresponding to a viscosity of 100 poise (10 Pa·s) is greater than or equal to 1480° C., characterized in that sulfides are used as a refining agent. It also relates to the glass article capable of being obtained by this method.Type: ApplicationFiled: October 9, 2006Publication date: October 30, 2008Applicant: SAINT-GOBAIN GLASS FRANCEInventors: Laurent Joubaud, Dorothee Martin
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Publication number: 20080256981Abstract: The invention relates to a method for treating wastes, in particular from the production of mineral fibres such as fibreglass wool or rock fibres associated with organic binders and optionally with water or other metal and/or organic matters consisting in fusing a waste mass (9) by supplying a pure oxygen or an oxygen-enriched air in order to obtain a mineral material usable in the form of a vitreous raw material for glass melting and in inputting energy by means of at least one burner submerged under the waste mass (9). A device for carrying out said method is also disclosed.Type: ApplicationFiled: July 27, 2005Publication date: October 23, 2008Applicant: SAINT-GOBAIN ISOVERInventors: Remi Jacques, Biagio Palmieri, Stephane Maugendre, Laurent Joubaud