Patents by Inventor Jean Louis Laurent
Jean Louis Laurent 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: 8372240Abstract: The subject of the invention is a novel plasterboard and its manufacturing processes. The novel board comprises, on one side, two first parallel feathered edges and, on the other side, two other, second, parallel feathered edges that are perpendicular to the first ones; or, on one side, two first parallel feathered edges and, either on the same side or on the other side, two second parallel feathered edges that are perpendicular to the first ones, the said other parallel feathered edges having a width of between 100 and 200 mm; or, on one side, two first parallel feathered edges and, either on the same side or on the other side, two second parallel feathered edges that are perpendicular to the first ones, the said second parallel feathered edges having a width such that the ratio of the width of the said second parallel feathered edges to the width of the said first parallel feathered edges is between 1.5 and 5.Type: GrantFiled: August 11, 2009Date of Patent: February 12, 2013Assignee: Lafarge PlatresInventors: Paul Jallon, Jean-Louis Laurent, Frederic Peronnet, Roger Arese, Lionel Zbinden, Emmanuel Vial, Loic Martin
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Patent number: 8277586Abstract: A production process is provided for a board of hydraulic binder with a facing on each of its sides. The process includes on one side first tapered parallel edges and on the same side or the other side, two second tapered parallel edges perpendicular to the first. The process also includes the use of a forming lath having at least two distal parts. The process can be used in a production line that includes a specific lath.Type: GrantFiled: May 4, 2007Date of Patent: October 2, 2012Assignee: Lafarge PlatresInventors: Jean-Louis Laurent, José Madeira, Stéphane Mettavant, Dominique Ribas
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Patent number: 8257525Abstract: The subject of the invention is a novel plasterboard and its manufacturing processes. The novel board comprises, on one side, two first parallel feathered edges and, on the other side, two other, second, parallel feathered edges that are perpendicular to the first ones; or, on one side, two first parallel feathered edges and, either on the same side or on the other side, two second parallel feathered edges that are perpendicular to the first ones, the said other parallel feathered edges having a width of between 100 and 200 mm; or, on one side, two first parallel feathered edges and, either on the same side or on the other side, two second parallel feathered edges that are perpendicular to the first ones, the said second parallel feathered edges having a width such that the ratio of the width of the said second parallel feathered edges to the width of the said first parallel feathered edges is between 1.5 and 5.Type: GrantFiled: August 11, 2009Date of Patent: September 4, 2012Assignee: Lafarge PlatresInventors: Paul Jallon, Jean-Louis Laurent, Frederic Peronnet, Roger Arese, Lionel Zbinden, Emmanuel Vial, Loic Martin
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Patent number: 7790090Abstract: The invention relates to a method of manufacturing sheets based on hydraulic binder, particularly sheets of plasterboard with feathered edges. The method comprises the steps of (I) making a mark (301) on a facing (2 or 3) of the preform (5), (II) detecting the mark (301), and (III) sending an actuating signal to a device (9) for cutting the preform (5). The invention also relates to a production line for producing such sheets, and to an apparatus, particularly for making an impression (12, 12bis) in a preform (5). The apparatus comprises a frame (101), first (102, 103) and second (105, 106) pulleys, two belts (108, 109) wrapped around the pulleys (102, 103, 105, 106), and at least one wire (111) extending between these belts (108, 109) so that its axis is parallel to the axis of the pulleys (102, 103, 105, 106).Type: GrantFiled: February 25, 2003Date of Patent: September 7, 2010Assignee: Lafarge PlatresInventors: Paul Jallon, Michel Rigaudon, Jean Louis Laurent, Jean Paul Solomut
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Patent number: 7651327Abstract: A production line for producing sheets based on hydraulic binder, the production line including in an upstream zone of the production line, marking device for marking a facing material of the preform with a mark; in a downstream zone of the production line, detecting device for detecting the mark made by the marking device; a cutting device; and an actuating device for actuating said cutting device after receiving a detection signal from the detection device.Type: GrantFiled: November 24, 2004Date of Patent: January 26, 2010Assignee: Lafarge PlatresInventors: Paul Jallon, Michel Rigaudon, Jean Louis Laurent, Jean Paul Solomut
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Publication number: 20090301630Abstract: The subject of the invention is a novel plasterboard and its manufacturing processes. The novel board comprises, on one side, two first parallel feathered edges and, on the other side, two other, second, parallel feathered edges that are perpendicular to the first ones; or, on one side, two first parallel feathered edges and, either on the same side or on the other side, two second parallel feathered edges that are perpendicular to the first ones, the said other parallel feathered edges having a width of between 100 and 200 mm; or, on one side, two first parallel feathered edges and, either on the same side or on the other side, two second parallel feathered edges that are perpendicular to the first ones, the said second parallel feathered edges having a width such that the ratio of the width of the said second parallel feathered edges to the width of the said first parallel feathered edges is between 1.5 and 5.Type: ApplicationFiled: August 11, 2009Publication date: December 10, 2009Applicant: LAFARGE PLATRESInventors: Paul JALLON, Jean-Louis LAURENT, Frederic PERONNET, Roger ARESE, Lionel ZBINDEN, Emmanuel VIAL, Loic MARTIN
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Publication number: 20090301647Abstract: A production process is provided for a board of hydraulic binder with a facing on each of its sides. The process includes on one side first tapered parallel edges and on the same side or the other side, two second tapered parallel edges perpendicular to the first. The process also includes the use of a forming lath having at least two distal parts. The process can be used in a production line that includes a specific lath.Type: ApplicationFiled: May 4, 2007Publication date: December 10, 2009Applicant: Lafarge PlatresInventors: Jean-Louis Laurent, José Madeira, Stéphane Mettavant, Dominique Ribas
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Publication number: 20090294067Abstract: The subject of the invention is a novel plasterboard and its manufacturing processes. The novel board comprises, on one side, two first parallel feathered edges and, on the other side, two other, second, parallel feathered edges that are perpendicular to the first ones; or, on one side, two first parallel feathered edges and, either on the same side or on the other side, two second parallel feathered edges that are perpendicular to the first ones, the said other parallel feathered edges having a width of between 100 and 200 mm; or, on one side, two first parallel feathered edges and, either on the same side or on the other side, two second parallel feathered edges that are perpendicular to the first ones, the said second parallel feathered edges having a width such that the ratio of the width of the said second parallel feathered edges to the width of the said first parallel feathered edges is between 1.5 and 5.Type: ApplicationFiled: August 11, 2009Publication date: December 3, 2009Applicant: LAFARGE PLATRESInventors: Paul Jallon, Jean-Louis Laurent, Frederic Peronnet, Roger Arese, Lionel Zbinden, Emmanuel Vial, Loic Martin
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Patent number: 7470338Abstract: A process for manufacturing plasterboard and a plasterboard manufacturing unit are provided, the process including feeding hydratable calcium sulphate and water into a first mixer (2) and into a second mixer (3); feeding in a facing (5); preparing a first gypsum slurry in the first mixer (2); preparing a second gypsum slurry in the second mixer (3); applying the first slurry onto the facing and forming a crude surface layer; applying the second slurry onto the crude surface layer and forming a crude core layer with a density lower than that of the crude surface layer; forming a plasterboard; hydrating and drying the board. This process allows the formation of the different layers of gypsum to be controlled independently.Type: GrantFiled: November 10, 2003Date of Patent: December 30, 2008Assignee: LaFarge PlatresInventors: Bruno Callais, Paul Jallon, Jean Louis Laurent, Michel Rigaudon
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Publication number: 20060198989Abstract: The subject of the invention is a novel plasterboard and its manufacturing processes. The novel board comprises, on one side, two first parallel feathered edges and, on the other side, two other, second, parallel feathered edges that are perpendicular to the first ones; or, on one side, two first parallel feathered edges and, either on the same side or on the other side, two second parallel feathered edges that are perpendicular to the first ones, the said other parallel feathered edges having a width of between 100 and 200 mm; or, on one side, two first parallel feathered edges and, either on the same side or on the other side, two second parallel feathered edges that are perpendicular to the first ones, the said second parallel feathered edges having a width such that the ratio of the width of the said second parallel feathered edges to the width of the said first parallel feathered edges is between 1.5 and 5.Type: ApplicationFiled: February 22, 2006Publication date: September 7, 2006Applicant: LAFARGE PLATRESInventors: Paul Jallon, Jean-Louis Laurent, Frederic Peronnet, Roger Arese, Lionel Zbinden, Emmanuel Vial, Loic Martin
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Publication number: 20040134585Abstract: A process for manufacturing plasterboard and a plasterboard manufacturing unit are provided, the process including feeding hydratable calcium sulphate and water into a first mixer (2) and into a second mixer (3); feeding in a facing (5); preparing a first gypsum slurry in the first mixer (2); preparing a second gypsum slurry in the second mixer (3); applying the first slurry onto the facing and forming a crude surface layer; applying the second slurry onto the crude surface layer and forming a crude core layer with a density lower than that of the crude surface layer; forming a plasterboard; hydrating and drying the board. This process allows the formation of the different layers of gypsum to be controlled independently.Type: ApplicationFiled: November 10, 2003Publication date: July 15, 2004Applicant: Lafarge PlatresInventors: Bruno Callais, Paul Jallon, Jean Louis Laurent, Michel Rigaudon
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Patent number: 6146345Abstract: The invention relates to a belt-like support device (1) for a part of the human body comprising at opposite ends (2, 3) complementary fastening elements (4A, 4B) that make it possible to close said belt about a selected part of the body. The support device is characterized in that it longitudinally comprises at least two main complementary bands (5, 6) forming a belt, with each of the main bands having a width less than the width of the belt. The bands (5, 6) may be separated from one another locally.Type: GrantFiled: September 4, 1998Date of Patent: November 14, 2000Inventor: Jean Louis Laurent Lucien Mignard