Patents Assigned to Compagnie Generale des Matieres
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Patent number: 8615843Abstract: A powered operation device for a glove box in a particular application to the field of nuclear fuel manufacturing. The device including a receiving portion designed to be driven by a motor part. The receiving portion has primary attachment means designed so as to enable this receiving portion to be mounted inside the glove box on a docking cylinder provided on the latter, and the motor part has secondary attachment means designed so as to enable this motor part to be mounted on the same docking cylinder, but outside the glove box.Type: GrantFiled: December 16, 2005Date of Patent: December 31, 2013Assignees: S.T.M.I. Societe des Techniques en Milieu Ionisant, Compagnie Generale des Matieres NucleairesInventors: Xavier Ladet, Jean-Pierre Alanore, Patrick Bolcato
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Patent number: 8138446Abstract: A monitoring device by laser shadowscopy, which comprises a light emitter (5) and receiver (6), mounted on an arm (8) oscillating at will around two joints (13, 14), in order to restore the image of the monitored profile more accurately. An important application relates to welding methods and especially in hollow beveled edges.Type: GrantFiled: February 21, 2005Date of Patent: March 20, 2012Assignees: Commissariat a l'Energie Atomique, Compagnie Generale des Matieres NucleairesInventor: Christophe Chagnot
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Patent number: 8003845Abstract: The invention concerns a process enabling the complete combustion and oxidation of the mineral fraction of combustible waste contained in an apparatus intended to treat waste by direct incineration-vitrification, said process comprising the following steps: a step to add said waste to the apparatus for its depositing on the surface of a molten glass bath contained in the apparatus, an incineration and oxidation step of the waste on the surface of the glass bath, an incorporation step to incorporate combustion products in the glass during which the glass bath, the combustion products and any vitrification additives added to the glass bath are heated until a paste-like, liquid mass is obtained, a step during which said mass is removed from the apparatus and left to cool to obtain finally what is called a confinement matrix, said process being characterized in that the complete combustion and oxidation of the waste is achieved partly during the waste adding step and partly during the waste incineration and oxType: GrantFiled: May 25, 2005Date of Patent: August 23, 2011Assignees: Commissariat a l'Energie Atomique, Compagnie Generale des Matieres NucleairesInventors: Olivier Pinet, Christophe Girold
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Patent number: 7887767Abstract: The invention relates to a process for reprocessing a spent nuclear fuel and for preparing a mixed uranium-plutonium oxide, which process comprises: a) the separation of the uranium and plutonium from the fission products, the americium and the curium that are present in an aqueous nitric solution resulting from the dissolution of the fuel in nitric acid, this step including at least one operation of coextracting the uranium and plutonium from said solution by a solvent phase; b) the partition of the coextracted uranium and plutonium to a first aqueous phase containing plutonium and uranium, and a second aqueous phase containing uranium but no plutonium; c) the purification of the plutonium and uranium that are present in the first aqueous phase; and d) a step of coconverting the plutonium and uranium to a mixed uranium/plutonium oxide. Applications: reprocessing of nuclear fuels based on uranium oxide or on mixed uranium-plutonium oxide.Type: GrantFiled: May 24, 2007Date of Patent: February 15, 2011Assignees: Commissariat a l'Energie Atomique, Compagnie Generale des Matieres NucleairesInventors: Pascal Baron, Binh Dinh, Michel Masson, Francois Drain, Jean-Luc Emin
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Patent number: 7881893Abstract: A method for processing a two-parameter spectrum including selecting a profile parameter for the spectrum and an initial correction function, for any profile selected according to this parameter, carrying out at least a correction operation by multiplying this selected profile by a correction function, equal to the sum of at least a portion of the already corrected profiles.Type: GrantFiled: April 21, 2005Date of Patent: February 1, 2011Assignees: Commissariat a l'Energie Atomique, Compagnie Generale des Matieres NucleairesInventor: Guillaume Montemont
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Patent number: 7861882Abstract: The invention relates to a device for the sealed docking (14) of mobile containers (42) equipped with plugs (44) of various diameters on a containment box (10). The device includes a center disk (22) and at least one docking flange (20a, 20b, 20c) that are concentric to each other, normally plugging the access opening (18) of the containment box. A locking/unlocking mechanism (24) makes it possible to only unlock the center disk (22) alone or the center disk and one or more of the docking flanges (20a, 20b, 20c), according to the diameter of the plug (44). This arrangement makes it possible, in particular, to clean the plug (44) of a mobile container (42) serving to transport contaminated nuclear equipment.Type: GrantFiled: March 31, 2005Date of Patent: January 4, 2011Assignee: Compagnie Generale des Matieres NucleairesInventors: Luc Tumolo, Pascal Le Chevalier
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Patent number: 7829043Abstract: Method for coprecipitation (or simultaneous precipitation) of at least one actinide in oxidation state (IV) with at least one actinide in oxidation state (III), wherein: a solution i.e. mixture of actinide(s) in oxidation state (IV) and actinide(s) in oxidation state (III) is prepared by adding to it a singly charged cation whose presence makes it possible to stabilize the aforementioned oxidation states in the mixture, or a singly charged cation which does not act to stabilize the aforementioned oxidation states in the mixture; a solution containing oxalate ions is mixed with the said mixture of actinides in order to carry out coprecipitation, i.e. simultaneous precipitation, of the said actinides in oxidation states (IV) and (III) and a fraction of the singly charged cation. According to another embodiment, a solution i.e.Type: GrantFiled: May 27, 2005Date of Patent: November 9, 2010Assignees: Commissariat a l'Energie Atomique, Compagnie Generale des Matieres NucleairesInventors: Stéphane Grandjean, André Beres, Christophe Maillard, Jérôme Rousselle
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Patent number: 7730745Abstract: Process for combustion and vitrification of waste in which at least one oxygen plasma jet is associated with a continuous melting device by high frequency direct induction. The crucible is composed of a continuous external shell and a sole plate, both cooled by a liquid circulating in internal channels. The inductor is placed below the sole plate. There is a gravity drain valve at the bottom or on the side.Type: GrantFiled: September 4, 2008Date of Patent: June 8, 2010Assignees: Commissariat a l'Energie Atomique, Compagnie Generale des Matieres NucleairesInventors: Christophe Girold, Lionel Bruguiere, Roger Boen, Armand Bonnetier, Louis Bojat
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Patent number: 7718010Abstract: The present invention related to a method for treating a surface with a gel, as well as to a treatment gel. The treatment may be a decontamination, etching or surface degreasing treatment, for example. The method comprises in this order, the following steps: applying the treatment gel on the surface to be treated, maintaining the treatment gel on the surface to be treated at a temperature and relative humidity such that the gel dries by breaking up and that it has the time to treat the surface before forming a dry and solid residue, and removing the dry and solid residue from the treated surface by suction or brushing. The gel comprises a viscosing agent, a treatment agent and optional an oxidizing agent.Type: GrantFiled: August 9, 2005Date of Patent: May 18, 2010Assignees: Commissariat a L'Energie Atomique, Compagnie Generale des Matieres NucleairesInventors: Sylvain Faure, Bruno Fournel, Paul Fuentes, Yvan Lallot
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Patent number: 7713357Abstract: The present invention relates to a method for treating a surface with a gel, as well as to a treatment gel. The treatment may be a decontamination, etching or surface degreasing treatment, for example. The method comprises in this order, the following steps: applying the treatment gel on the surface to be treated, maintaining the treatment gel on the surface to be treated at a temperature and relative humidity such that the gel dries by breaking up and that it has the time to treat the surface before forming a dry and solid residue, and removing the dry and solid residue from the treated surface by suction or brushing. The gel comprises a viscosing agent, a treatment agent and optionally an oxidizing agent.Type: GrantFiled: July 15, 2002Date of Patent: May 11, 2010Assignees: Commissariat a l'Energie Atomique, Compagnie Generale des Matieres NucleairesInventors: Sylvain Faure, Bruno Fournel, Paul Fuentes, Yvan Lallot
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Patent number: 7713585Abstract: The invention relates to the use of a composition comprising a chlorinated polyester resin in which the polyester satisfies formula (I) below: together with a crosslinking catalyst and a crosslinking accelerator in order to plug a crack affecting the wall of a metal device intended to contain a radioactive acid material. It is especially applicable in the maintenance of metal equipment of nuclear installations, in particular equipment that is for irradiated nuclear fuel reprocessing.Type: GrantFiled: February 20, 2006Date of Patent: May 11, 2010Assignees: Commissariat a l'Energie Atomique, Compagnie Generale des Matieres NucleairesInventors: David Descarsin, Jacques Raby, Raphael Robin, Christelle Vittoz
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Patent number: 7683329Abstract: The system for automatic determination of the density of an object (100) comprises: an apparatus (2) to determine a significant dimension (x) of said object (100), an apparatus (30) to determine the intensity (I) of a photon beam attenuated by passing through said object (100), an acquisition, processing and analysis apparatus (200), means (70, 72, 80, 82, 84, 86, 88) of transporting the object (100), first means (74, 76, 78) of adjusting the position of the object (100), second means (90, 92, 94, 96, 98) of adjusting the position of the object (100). The method for using the system described above includes steps to calibrate components of apparatuses 2 and 30, and steps to actually determine the significant dimension of objects (100), that are done on each object (100) in said set of objects.Type: GrantFiled: April 6, 2005Date of Patent: March 23, 2010Assignees: Commissariat a l'Energie Atomique, Compagnie Generale des Matieres NucleairesInventors: Abdallah Lyoussi, Emmanuel Payan
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Publication number: 20100039004Abstract: The flexible glove holder (1) comprises a flat structure (13) with three S-shaped branches (2, 3 and 4) on which the glove is wound. The holder (1) is then pushed into the opening of the glove box. This rapid action method makes it possible to avoid knotting the gloves when they must be drawn toward the outside for an operation within the box and also allows the implementation of biological protection on the opening of the glove box as well as a protection of the agents against radiation.Type: ApplicationFiled: October 4, 2007Publication date: February 18, 2010Applicant: COMPAGNIE GENERALE DES MATIERES NUCLEAIRESInventors: Francis Hebuterne, Pierre Riba
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Publication number: 20100034713Abstract: A chemical element to be very efficiently separated from uranium starting from an acid aqueous phase, in an extraction cycle for the uranium, when this chemical element is present in said phase at a concentration less than that of the uranium, or even as a trace element, and when it is moreover less extractable by the extractant used in this extraction cycle than is the uranium. The chemical element can notably be neptunium(IV) or thorium 228.Type: ApplicationFiled: July 2, 2007Publication date: February 11, 2010Applicant: COMPAGNIE GENERALE DES MATIERES NUCLEAIRESInventors: Jean-Paul Moulin, Gilbert Andreoletti, Patrick Bourdet
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Publication number: 20090103110Abstract: A system based on the continuous measurement (20) of the diameter of a cylindrical object (1) moving, laid down, on a belt conveyor (10) allows dimensional compliance of the latter object to be checked. The measurement system (20) may be coupled with a sorting system based on ejection out of the conveyor (10) by projecting a gas through a transverse nozzle (42). By means of the system according to the invention, it is possible to continuously determine whether a nuclear fuel pellet (1), in particular after rectification (2), has to be rejected or not.Type: ApplicationFiled: October 16, 2006Publication date: April 23, 2009Applicant: COMPAGNIE GENERALE DES MATIERES NUCLEAIRESInventor: Philippe Ferlet
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Publication number: 20090093666Abstract: Process for combustion and vitrification of waste in which at least one oxygen plasma jet is associated with a continuous melting device by high frequency direct induction. The crucible is composed of a continuous external shell and a sole plate, both cooled by a liquid circulating in internal channels. The inductor is placed below the sole plate. There is a gravity drain valve at the bottom or on the side.Type: ApplicationFiled: September 4, 2008Publication date: April 9, 2009Applicants: Commissariat A L'Energie Atomique, Compagnie Generale Des Matieres NucleairesInventors: Christophe Girold, Lionel Bruguiere, Roger Boen, Armand Bonnetier, Louis Bojat
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Patent number: 7503188Abstract: Process for combustion and vitrification of waste in which at least one oxygen plasma jet is associated with a continuous melting device by high frequency direct induction. The crucible is composed of a continuous external shell and a sole plate, both cooled by a liquid circulating in internal channels. The inductor is placed below the sole plate. There is a gravity drain valve at the bottom or on the side.Type: GrantFiled: April 7, 2003Date of Patent: March 17, 2009Assignees: Commissariat A l 'Energie Atomique, Compagnie Generale des Matieres NucleairesInventors: Christophe Girold, Lionel Bruguiere, Roger Boen, Armand Bonnetier, Louis Bojat
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Publication number: 20080121248Abstract: The invention concerns laser decontamination of the surface of a shaped component (3). Said decontamination comprises the following steps: successively impinging parts of the surface of the shaped component (3) with pulsed laser beams of wavelengths in the ultraviolet range and enabling the surface layer of the shaped component (3) to be ablated in the form of particles, the laser beams being distributed so as to cover simultaneously each treated part; and recuperating by suction said particles.Type: ApplicationFiled: December 12, 2005Publication date: May 29, 2008Applicant: Compagnie Generale Des Matieres NuleairesInventors: Bernard Turco, Marc Fisher
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Publication number: 20080061224Abstract: This invention relates to the field of signal processing, in particular x-ray or gamma-ray spectrometry. It relates to a method as well as a device for improved processing making it possible to correct two-parameter spectra.Type: ApplicationFiled: April 21, 2005Publication date: March 13, 2008Applicants: Comissariat A L'energie Atomique, Compagnie Generale Des Matieres NucleariesInventor: Guillaume Montemont
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Patent number: 7329399Abstract: A hydrogen-trapping compound is provided, along with a process for manufacturing the compound, and its uses, wherein the hydrogen-trapping compound is characterized in that it contains at least one metal salt of formula MX(OH), in which M represents a divalent transition element, for example Co or Ni; O represents an oxygen atom; X represents an atom of group 16 of the Periodic Table of the Elements, excluding O, for example a sulphur atom; and H represents a hydrogen atom, and wherein the hydrogen-trapping compound is effective for trapping hydrogen, hydrogen within a material and free hydrogen and is applicable in situations in which hydrogen is evolved and in which it has to be trapped, especially for safety reasons.Type: GrantFiled: August 25, 2004Date of Patent: February 12, 2008Assignees: Commissariat a l'Energie Atomique, Compagnie Generale des Matieres NucleairesInventors: Sylvie Camaro, Quentin Ragetly, Chantal Riglet-Martial