Patents by Inventor Dominique Guillet
Dominique Guillet 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: 9728339Abstract: Methods and apparatus are provided for a high voltage capacitor having a plurality of capacitor units connected in electrical series in a stacked configuration. An insulator element can be positioned between two adjacent capacitor units of the high voltage capacitor for providing separation between the adjacent capacitor units, where the insulator element has a first thickness at a first end of the insulator element and a second smaller thickness at a second end of the insulator element. The insulator element can have a wedge-shaped cross section.Type: GrantFiled: March 10, 2015Date of Patent: August 8, 2017Assignee: Mexwell Technologies, Inc.Inventors: Dominique Guillet, Etienne Savary, Joseph Bulliard, Patrick Gaillard
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Publication number: 20150262755Abstract: Methods and apparatus are provided for a high voltage capacitor having a plurality of capacitor units connected in electrical series in a stacked configuration. An insulator element can be positioned between two adjacent capacitor units of the high voltage capacitor for providing separation between the adjacent capacitor units, where the insulator element has a first thickness at a first end of the insulator element and a second smaller thickness at a second end of the insulator element. The insulator element can have a wedge-shaped cross section.Type: ApplicationFiled: March 10, 2015Publication date: September 17, 2015Inventors: Dominique Guillet, Etienne Savary, Joseph Bulliard, Patrick Gaillard
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Patent number: 8841493Abstract: The subject matter of the invention is a process for preparing fluoroolefin compounds. The invention relates more particularly to a process for producing a (hydro)fluoroolefin compound, which comprises (i) bringing at least one compound comprising from three to six carbon atoms, at least two fluorine atoms and at least one hydrogen atom, on the condition that at least one hydrogen atom and one fluorine atom are located on adjacent carbon atoms, into contact with a solid reactant comprising calcium hydroxide.Type: GrantFiled: May 4, 2010Date of Patent: September 23, 2014Assignee: Arkema FranceInventors: Dominique Guillet, Michel Devic
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Patent number: 8329964Abstract: The invention relates to a gas-phase continuous method for preparing 2,3,3,3-tetrafluoro-1-propene, said method comprising the following steps: (i) hydrogenation of hexafluoropropylene to form 1,1,1,2,3,3-hexafluoropropane; (ii) dehydrofluorination of the 1,1,1,2,3,3-hexafluoropropane obtained in the previous step to 1,2,3,3,3-pentafluoropropene-1; (iii) hydrogenation of the 1,2,3,3,3-pentafluoropropene-1 obtained in the previous step to form 1,1,1,2,3-pentafluoropropane; and (iv) dehydrofluorination of the 1,1,1,2,3-pentafluoropropane obtained in the previous step to form 2,3,3,3-tetrafluoro-1-propene.Type: GrantFiled: March 27, 2009Date of Patent: December 11, 2012Assignee: Arkema FranceInventors: Michel Devic, Dominique Guillet, Emmanuel Guiraud, Laurent Wendlinger
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Publication number: 20120083632Abstract: The subject matter of the invention is a process for preparing fluoroolefin compounds. The invention relates more particularly to a process for producing a (hydro)fluoroolefin compound, which comprises (i) bringing at least one compound comprising from three to six carbon atoms, at least two fluorine atoms and at least one hydrogen atom, on the condition that at least one hydrogen atom and one fluorine atom are located on adjacent carbon atoms, into contact with a solid reactant comprising calcium hydroxide.Type: ApplicationFiled: May 4, 2010Publication date: April 5, 2012Applicant: Arkema FranceInventors: Dominique Guillet, Michel Devic
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Publication number: 20100305370Abstract: The invention relates to a gas-phase continuous method for preparing 2,3,3,3-tetrafluoro-1-propene, said method comprising the following steps: (i) hydrogenation of hexafluoropropylene to form 1,1,1,2,3,3-hexafluoropropane; (ii) dehydrofluorination of the 1,1,1,2,3,3-hexafluoropropane obtained in the previous step to 1,2,3,3,3-pentafluoropropene-1; (iii) hydrogenation of the 1,2,3,3,3-pentafluoropropene-1 obtained in the previous step to form 1,1,1,2,3-pentafluoropropane; and (iv) dehydrofluorination of the 1,1,1,2,3-pentafluoropropane obtained in the previous step to form 2,3,3,3-tetrafluoro-1-propene.Type: ApplicationFiled: March 27, 2009Publication date: December 2, 2010Applicant: Arkema FranceInventors: Michel Devic, Dominique Guillet, Emmanuel Guiraud, Laurent Wendlinger
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Publication number: 20100067173Abstract: An energy storage apparatus and article of manufacture is disclosed. In one embodiment, the energy storage apparatus comprises a jelly roll, having a first and second sheet and a first and second separator member, and at least one terminal element. In another embodiment, an article of manufacture comprising forming a cylindrical housing and stamping a longitudinal indentation on an exterior surface of the cylindrical housing is disclosed. In one alternate embodiment, the longitudinal indentation is adapted to slowly fracture under pressure exerted on an interior surface of the cylindrical housing, thereby preventing catastrophic failure, such as for example an explosion.Type: ApplicationFiled: October 14, 2009Publication date: March 18, 2010Applicant: MAXWELL TECHNOLOGIES, INC.Inventors: Dominique Guillet, Laurent Gisler
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Publication number: 20080259525Abstract: An energy storage apparatus and article of manufacture is disclosed. In one embodiment, the energy storage apparatus comprises a jelly roll, having a first and second sheet and a first and second separator member, and at least one terminal element. In another embodiment, an article of manufacture comprising forming a cylindrical housing and stamping a longitudinal indentation on an exterior surface of the cylindrical housing is disclosed. In one alternate embodiment, the longitudinal indentation is adapted to slowly fracture under pressure exerted on an interior surface of the cylindrical housing, thereby preventing catastrophic failure, such as for example an explosion.Type: ApplicationFiled: November 9, 2006Publication date: October 23, 2008Applicant: Maxwell Technologies, Inc.Inventors: Dominique Guillet, Laurent Gisler
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Patent number: 7426101Abstract: In one embodiment, a container with an overpressure safety device comprises a wall having a depression in at least a portion of the wall that expands when the pressure inside the container exceeds a predetermined level. The container further comprises a clamp bridging over the depression and restraining the angular expansion of the depression, while at the same time enabling the depression to expand radially. As a consequence, the outer dimensions of the container remain essentially constant when the pressure inside the container exceeds the predetermined level. The container may be tubular in shape and the depression may be shaped like a groove extending parallel to the longitudinal axis of the container, while the clamp may be shaped like a bar affixed to the outer wall of the container in two or more points spaced angularly on opposite sides of the depression.Type: GrantFiled: May 2, 2006Date of Patent: September 16, 2008Assignee: Maxwell Technologies, Inc.Inventors: Dominique Guillet, Mariano Teira, Rolland Gallay
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Publication number: 20070257045Abstract: In one embodiment, a container with an overpressure safety device comprises a wall having a depression in at least a portion of the wall that expands when the pressure inside the container exceeds a predetermined level. The container further comprises a clamp bridging over the depression and restraining the angular expansion of the depression, while at the same time enabling the depression to expand radially. As a consequence, the outer dimensions of the container remain essentially constant when the pressure inside the container exceeds the predetermined level. The container may be tubular in shape and the depression may be shaped like a groove extending parallel to the longitudinal axis of the container, while the clamp may be shaped like a bar affixed to the outer wall of the container in two or more points spaced angularly on opposite sides of the depression.Type: ApplicationFiled: May 2, 2006Publication date: November 8, 2007Applicant: Maxwell Technologies, Inc.Inventors: Dominique Guillet, Mariano Teira, Roland Gallay
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Patent number: 6532539Abstract: The present invention relates to a process making it possible to control access to at least one terminal with address AD by at least one scrambled item with the aid of at least one control word. The process comprises a step making it possible to construct a descrambling item in the form of a message containing the control word, a datum making it possible to identify the scrambled item and the address of the terminal.Type: GrantFiled: October 13, 1998Date of Patent: March 11, 2003Assignee: Thomson Licensing S.A.Inventors: Arnaldo Campinos, Dominique Guillet
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Patent number: 6525924Abstract: The invention relates to a device for accumulation of electrical energy. The device is a substantially cylindrical winding of strips. At least one strip is a strip conductor. The device is defined transversally by a substantially cylindrical lateral face and longitudinally by two opposite end faces. Each of the two opposite end faces contains an edge of the strip conductor. In the device, at least one of the edges of at least one strip conductor contains a plurality of teeth. The teeth are disposed on at least one of the end faces and form at least one set in which they are substantially superimposed in a predetermined direction, approximately perpendicular to a plane tangent to the cylindrical face. The teeth constitute a group of elements of electrical connection to a terminal and in which each element extends itself in continuity with the strip conductor which comprises the element.Type: GrantFiled: October 1, 2001Date of Patent: February 25, 2003Assignee: Montena Components S.A.Inventors: Roland Gallay, Dominique Guillet, Vincent Hermann, Adrian Schneuwly
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Publication number: 20020048140Abstract: The invention relates to a device (1) for accumulation of electrical energy comprising a substantially cylindrical winding of strips (2, 4) at least one strip (2) of which being a strip conductor (2) of electricity, this device (1) being defined transversally by a substantially cylindrical lateral face (1A) and longitudinally by two opposite end faces (1B, 1C) which each contain an edge (2B, 2C) of the said strip conductor (2) of electricity, this device being characterized in that at least one of the edges (2B, 2C) of at least one strip conductor (2) of electricity contains a plurality of teeth (5) disposed in such a way that on at least one of the end faces (1B, 1C) of the device (1) they form at least one set in which they are substantially superimposed in a predetermined direction, approximately perpendicular to a plane tangent to the cylindrical face (1A) of the said device, in such a way as to constitute a group of elements of electrical connection to a terminal (6) and in which each element (5) extendsType: ApplicationFiled: October 1, 2001Publication date: April 25, 2002Applicant: MONTENA COMPONENTS S.A.Inventors: Roland Gallay, Dominique Guillet, Vincent Hermann, Adrian Schneuwly
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Patent number: 6232513Abstract: In order to isomerize a hydrofluorocarbon having a certain thermodynamic stability (HFC 1) into a hydrofluorocarbon of greater thermodynamic stability (HFC 2), the hydrofluorocarbon HFC 1 is subjected to a heat treatment in the presence of hydrogen at a temperature above 500° C. This process, which does not require the use of a catalyst, applies especially to the isomerization of 1,1,2,2-tetrafluoroethane into 1,1,1,2-tetrafluoroethane.Type: GrantFiled: December 22, 1999Date of Patent: May 15, 2001Assignee: Elf Atochem S.A.Inventors: Serge Hub, Dominique Guillet
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Patent number: 5672790Abstract: The invention relates to the gas-phase hydrogenolysis of chlorofluorocarbons or of chlorofluorohydrocarbons in the presence of a palladium-based catalyst deposited on a support in which sulfur is incorporated into the catalyst in order to stabilize the catalytic activity.Type: GrantFiled: March 15, 1996Date of Patent: September 30, 1997Assignee: Elf Atochem S.A.Inventors: Dominique Guillet, Serge Hub
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Patent number: 5124495Abstract: The invention relates to the manufacture of chlorofluoroethanes of formula CF.sub.3 --CHF.sub.x Cl.sub.2-x, where x is equal to 0 or 1, by catalytic hydrogenation of a perhaloethane of formula CF.sub.3 --CF.sub.x Cl.sub.3-x.The use of an iridium-based catalyst deposited on a support enables the selectivity to be improved.Type: GrantFiled: December 14, 1990Date of Patent: June 23, 1992Assignee: Societe AtochemInventors: Jean-Marie Cognion, Dominique Guillet
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Patent number: 5053564Abstract: The invention relates to the manufacture of chlorofluoroethanes of formula CF.sub.3 --CHF.sub.x Cl.sub.2-x, where x is equal to 0 or 1, by the catalytic hydrogenation of a perhaloethane of formula: CF.sub.3 --CF.sub.x Cl.sub.3-x. The use of a ruthenium-based catalyst deposited on a support enables the selectivity to be improved.Type: GrantFiled: December 20, 1989Date of Patent: October 1, 1991Assignee: Societe AtochemInventors: Bernard Cheminal, Jean-Marie Cognion, Dominique Guillet