| Patent Number |
Title Of Patent |
Date Issued |
| 7329399 |
Hydrogen trapper compound, method for the production and uses thereof |
February 12, 2008 |
| 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 |
| 7309376 |
Method and installation for producing breathable air |
December 18, 2007 |
| The invention relates to a process for producing respirable air comprising the following stages: treatment of compressed air comprising an air-drying operation; and rehumidification of the treated dry air. According to the invention, the rehumidification stage of the treated dry air |
| 7308069 |
Device and method for controlling the exterior aspect of fuel rods for nuclear reactors |
December 11, 2007 |
| The invention concerns a device (1) for controlling the exterior aspect of fuel rods (2) for nuclear reactors, said device comprising optical means (40) having at least one camera (42, 42') and linked to an image acquisition and processing system (48) capable of detecting geometric d |
| 7308068 |
Device and method for controlling the exterior aspect of fuel rods for nuclear reactors |
December 11, 2007 |
| The invention concerns a device (1) for controlling the exterior aspect of fuel rods (2) for nuclear reactors, said device comprising optical means (40) having at least one camera (42, 42') and linked to an image acquisition and processing system (48) capable of detecting geometric d |
| 7300641 |
Method and device for capturing ruthenium present in a gaseous effluent |
November 27, 2007 |
| The present invention relates to a method and a device for trapping ruthenium present in a gaseous effluent. The trapping method of the present invention comprises the use of an aqueous solution or slurry of an alkylene glycol polymer or an alkylene glycol copolymer, in which the alk |
| 7268353 |
Measuring the moisture content of plutonium oxide canisters |
September 11, 2007 |
| A process for measuring the moisture content in a quantity of PuO.sub.2 powder. The process detects the content of thermal neutrons emitted by the quantity of PuO.sub.2 powder and then deduces its moisture content from a value of the detected content assuming a relation determined be |
| 7207555 |
Support for moving cylindrical elements and method and conveyor using such supports |
April 24, 2007 |
| The invention relates to a support (1) for rolling cylindrical elements, this support comprising first guide means (2) capable of guiding the cylindrical elements at a height z1. Downstream, in a direction in which the cylindrical elements roll, the said support (1) comprises second |
| 7178455 |
Compacting press |
February 20, 2007 |
| A compacting press having a support section, a compacting section which undergoes translational movement along a vertical axis (Z, Z') which is fitted with a thrust-plate and which forms a ram designed to compress cases by the application of pressure, and a guide assembly made up of a |
| 7169370 |
Method for co-precipitating actinides and method for preparing mixed actinide oxides |
January 30, 2007 |
| The present invention generally relates to the preparation of mixed actinide oxides, such as mixed oxides of uranium and plutonium (U, Pu) O.sub.2, by simultaneously coprecipitation and then calcinations. |
| 7168332 |
Powder sampling device |
January 30, 2007 |
| The powder sampling device comprises, next to a vertical channel (1) a drawer that is also vertical which may be lowered so that a groove (5) passes into a sampling mouth (12). A flap (15) may be extended to direct the powder towards the groove (5) temporarily and fill it, without the |
| 7101822 |
Method for decontaminating solid iodine filters |
September 5, 2006 |
| The invention relates to a process for decontaminating solid iodine filters containing silver iodide, silver iodate and/or physisorbed molecular iodine.This process consists in placing the filter in contact with an aqueous solution of a reducing agent chosen from hydroxylamine, hydro |
| 7092562 |
Method for measuring a three-dimensional object, or assembly of objects |
August 15, 2006 |
| In this system, three-dimensional objects (1, 5, 6) in an environment that may be very complex are discerned by identifying their simple contour shapes on images, and the geometric characteristics of these objects and their positions and orientations are then measured. Contours are defin |
| 7022295 |
Installation for carrying out a three phase chemical reaction under pressure |
April 4, 2006 |
| A gas siphon type reactor (10) is used to carry out a three phase chemical reaction under pressure, such as the reduction of uranyl nitrate to uranous nitrate by hydrogen, in the presence of a catalyst made up of platinum on a silica carrier. The control of the pressure in the reactor |
| 6996153 |
Core-type furnace |
February 7, 2006 |
| Vertical segments of a side wall of a crucible for an induction furnace are assembled at an adjustable, invariable position by screws screwed into tapped holes of a flange common to all segments. A precise assembly is thus obtained producing no deformation and no internal stresses. The |
| 6968629 |
Method of drying metallic waste of pyrophoric tendencies that is to be compacted; apparatus and |
November 29, 2005 |
| The present invention provides:a method of drying metallic waste having pyrophoric tendencies (liable to catch fire and/or explode), said waste being for compacting;an apparatus for drying said waste, the apparatus including a compacting canister and being suitable for implementing said dryi |
| 6951442 |
Device for inspecting, sampling or extracting at a precise spot beneath a slab |
October 4, 2005 |
| A tool (7) for sampling or extracting the contents of a pit (4) is suspended from a cable (8) passing through a narrow opening (3) in a slab (2) covering the pit. A crosspiece (13) hooked to guide cables (11) which converge on it makes it possible to displace the lifting cable (8) under |
| 6928869 |
Stick for measuring the level of a molten metal bath |
August 16, 2005 |
| A measurement rod for measuring the level of a liquid bath is cooled but is provided with a solid end piece so that the bath cannot solidify in front of the orifice of the measurement gas injected in the bath, for which the pressure is being measured. |
| 6919557 |
Device for continuous movement of objects with symmetry, use for visual inspection and control |
July 19, 2005 |
| A device for controlling a continuous movement of an object with symmetry of revolution (1) comprises a conveyor (5) having two parallel guides, (6) and at least one pair of belts (8) stretched on the guides, between and on which these objects move at the level of the guides. These belts |
| 6895065 |
Method and apparatus for identifying nuclear fuels |
May 17, 2005 |
| The device comprises a detector (15) of radiation that could be neutron radiation and a detector (16) of another type of radiation, for example gamma radiation. The process consists in deducing a burn up fraction or irradiation of the nuclear fuel (26) by the measurement of the measured |
| 6880265 |
Method of drying metallic waste of pyrophoric tendencies that is to be compacted; apparatus and |
April 19, 2005 |
| The present invention provides: a method of drying metallic waste having pyrophoric tendencies (liable to catch fire and/or explode), said waste being for compacting; an apparatus for drying said waste, the apparatus including a compacting canister and being suitable for implementing s |
| 6864095 |
Method for making an optical fiber chemical sensor comprising a colored indicator, useful in par |
March 8, 2005 |
| The invention concerns the production of a chemical sensor which can be used to measure nitric acidity.This sensor is produced using a sol-gel method for depositing a porous film, containing a colored indicator, on the core of an optic fiber. The pH of the initial sol is adjusted as are |
| 6835273 |
Clamp for maintaining a flexible tubing and method for sealing same with a weld seam |
December 28, 2004 |
| Heating tongs (6) are used to cut a sleeve (4) fixed around an opening (1) of a chamber (2) after the objects to be taken out of the chamber have been introduced. Another pair of tongs (9) is placed on the side of the opening (1) to tighten the sleeve (4) and to keep it flat to avoid ple |
| 6810756 |
Sampling device |
November 2, 2004 |
| A rotating plug (4) is installed in a body (1) and can be in different positions in which two lateral drillings come in front of the orifices corresponding to the body (1) or a sampling orifice (18) in front of which a flask is placed. The fluid to be sampled is circulated so that it fil |
| 6782123 |
Method and device for mapping radiation sources |
August 24, 2004 |
| A method and apparatus for precisely locating radioactive sources. A pair of visual cameras are oriented in directions so that they have all or part of their field of vision in common. The apparatus also includes an intermediate camera which is sensitive to the radiation to be measured. |
| 6759027 |
Method and installation for carrying out a three phase chemical reaction under pressure |
July 6, 2004 |
| A gas siphon type reactor (10) is used to carry out a three phase chemical reaction under pressure, such as the reduction of uranyl nitrate to uranous nitrate by hydrogen, in the presence of a catalyst made up of platinum on a silica carrier. The control of the pressure in the reactor |
| 6695562 |
Device and process for the transfer of objects between two open receptacles |
February 24, 2004 |
| Two receptacles open at the top (15, 16), one of which contains objects (17) are put onto a rotating tray (3) under a convex cover (5). They are held in place by an appropriate device (11, 12). The tray and the cover are rotated by one complete turn such that the objects (17) come out of |
| 6666003 |
Method and device for filling drums containing dangerous waste |
December 23, 2003 |
| Dangerous wastes, such as very low level radioactive waste are processed and compacted under the form of flat cakes (12) stacked in metallic drums (10) closed by an intermediary lid (16) provided with a cap. A blocking material is then injected into the drum by an injection nozzle (42), |
| 6656391 |
Preparation by spray-drying of a flowable uranium dioxide powder obtained by dry process convers |
December 2, 2003 |
| The invention relates to a process for preparing a castable powder of uranium dioxide UO.sub.2, for use in the manufacture of MOX fuel.This process comprises the following stages: 1) to prepare an aqueous suspension of a powder of UO.sub.2 obtained by dry process from uranium hexafluoride |
| 6620259 |
Method for cleaning containment enclosures with double containment and a removable cleaning rece |
September 16, 2003 |
| The present invention relates to a method for cleaning containment enclosures, and in particular for dedusting them. The invention is implemented with double containment; and suctioning is performed within a removable receptacle. |
| 6605261 |
Method and apparatus for continuously transforming plutonium oxalate into plutonium oxide |
August 12, 2003 |
| The present invention relates to a method of transforming plutonium oxalate into plutonium oxide by drying and then calcining. In said method, in a characteristic manner, the operations of drying and calcining are implemented continuously, in the presence of oxygen and with gas extra |
| 6550228 |
Device for the controlled admission of a noxious powder into a box |
April 22, 2003 |
| A device for the controlled admission of a noxious powder into a box which includes a body having an open lower part that terminates in a sealing skirt. The body is connected to a powder inlet pipe and to a gas extraction pipe. A movable valve is disposed in the body. The valve is co |
| 6548007 |
Surfacing device |
April 15, 2003 |
| The device comprises a moving assembly (24) designed to be placed in an operating position in which said assembly (24) is over the opening (12e) of a receptacle (12) filled with a viscous material, first motor means (32) and a first guide system (30a, 34a, 42) serve to impart vertical |
| 6547164 |
Vapor-liquid ejector with a removable nozzle |
April 15, 2003 |
| The present invention provides a vapor-liquid (V-L) ejector with a removable nozzle (2) in which the internal structure has been modified and improved concerning the clearance that exists to enable said nozzle (2) to be engaged in the body (10) of said ejector (1). The invention also |
| 6517788 |
Method and device for separating caesium, strontium and transuranium elements contained in sodiu |
February 11, 2003 |
| The present invention relates to a method for the continuous separation of caesium, strontium and transuranium elements contained in sodium waste which comprises the use of NaTPB, and to a device for the implementation of this method.The method of the invention comprises, in line, the fo |
| 6517231 |
Liquid stirrer with magnetic coupling |
February 11, 2003 |
| The stirrer comprises a driving magnetic portion (13) and a driven magnetic portion (14). The driven portion is for placing on the bottom of a receptacle (5.sub.1) containing a liquid to be stirred. The driving portion (13) is controlled so as to drive the driven portion (14) in rota |
| 6504113 |
Pneumatic weighing device |
January 7, 2003 |
| The scales include a tray (1) placed on a base (3) and lifted by an air cushion, with no mechanical connection with the base (3). The weight of an object (21) laid on the tray (1) varies the air cushion pressure, and the measurement of this pressure by an external sensor (19) is straight |
| 6488849 |
Rotating device for continuously filtering a liquid such as a solution containing a precipitate |
December 3, 2002 |
| The present invention relates to a rotating device for continuously filtering a liquid such as a solution containing a precipitate.According to this invention, the device comprises a cylindrical, horizontal-axis drum of revolution, rotated by a drive system, a plurality of filtering elem |
| 6478133 |
Static device maintaining the homogeneity of a mixture of powders subjected to a gravity-induced |
November 12, 2002 |
| A vertical flow path in a pipe is delimited by channels (3) disposed at an angle. The inclined channels produce a zigzag flow in a mixture of powders which follow the flow path. The zigzag flow causes stirring to maintain homogeneity of the mixture even if its components have very differ |
| 6475296 |
Degreasing composition and methods using same |
November 5, 2002 |
| The present invention relates to a degreasing composition, to a liquid, to a gel and to a degreasing foam which comprise said composition.The composition according to the invention comprises a base, a polyethoxylated fatty alcohol, saturated or unsaturated, a copolymer of ethylene oxide |
| 6460406 |
Cell for measuring a liquid activity, provided with probe rinsing means |
October 8, 2002 |
| The liquid to be measured flows through a flow-pipe and bathes the end (1) of a pivoting probe in a spectrophotometric cell (2). One measuring surface (15) of the probe (2) remains immersed in the liquid whose level is advantageously assured by an overflow barrier (19); but when the prob |
| 6450680 |
Apparatus for mixing powder |
September 17, 2002 |
| The powder mixing apparatus comprises a circular section cylindrical body having a longitudinal axis that is substantially horizontal, the body being leakproof and having two disk-shaped walls and an annular wall, the apparatus having a disk placed coaxially inside said body, the edge of |
| 6450372 |
Rotary powder dispenser |
September 17, 2002 |
| A rotary powder dispenser disposed between a top inlet pipe and at least two bottom outlet pipes includes a casing (1) connected at its top to an inlet via which the flow of powder is taken in, and at its bottom to outlets via which the flow is delivered, the casing (1) being formed of a |
| 6449034 |
Method for controlling perpendicularity of a cylindrical part, such as a nuclear fuel pellet |
September 10, 2002 |
| In order to control the perpendicularity of a component (10) such as a nuclear fuel pellet, this component is placed upon a support plane and measurements are taken, by means of two pairs of laser micrometers (A1, A2; B1, B2), of the distances separating diametrically opposed generators |
| 6428679 |
Electrolytic method for the recovery and recycling of silver from a nitric acid solution |
August 6, 2002 |
| This invention relates to an electrolytic method for the selective recovery and recycling of silver from a nitric acid solution containing it in the form of Ag(I), this method comprising successive steps of electro-deposition of the silver in the form of silver metal Ag(0), and then |
| 6409791 |
Metallothermal process and continuous drawing, in cold induction furnaces, of metals or alloys |
June 25, 2002 |
| A metallothermy method includes continuously withdrawing an ingot of a metal product such as uranium or a uranium alloy as it is formed from an oxide or salt of the metal. The method employs upper and lower communicating crucibles. The upper crucible contains a layer of reducing medi |
| 6383400 |
Method for reducing nitrate and/or nitric acid concentration in an aqueous solution |
May 7, 2002 |
| The present invention relates to a process to reduce the nitrate and/or nitric acid concentration of an aqueous solution--referred to as a denitration process--by means of a reaction with formic acid or formol wherein said reaction is carried out in heterogeneous catalysis. The solut |
| 6380541 |
Device for locating radiation sources |
April 30, 2002 |
| This device comprises a chamber (4) with a pinhole, the walls of the chamber acting as shielding (6) that absorbs radiation. The chamber contains means of forming images of the sources, due to radiation, and the area in which the sources are located, due to visible light from this ar |
| 6337547 |
Linking element with screw jack and its use for an industrial robot arm |
January 8, 2002 |
| The linking component between two parts that contributes to maintaining them at a distance that is determined but adjustable comprises a jack with a screw and a nut. The movement of the jack is controlled by a motor. Universal joints are disposed between the two parts and the screw and t |
| 6305424 |
System for supporting pipes in service galleries, especially in the nuclear industry |
October 23, 2001 |
| A novel support system is disclosed for supporting pipes conducting fluid in service galleries, particularly in the chemical, petrochemical or nuclear industry. The support system includes at least one pre-assembled, movable portal frame including metal tubes welded together and set out |
| 6293316 |
Method of filling with powder a container that is closable by a lid, and associated apparatus fo |
September 25, 2001 |
| A method and apparatus for filling with powder a container having an interior and an opening to the interior that is closable by a lid. The method includes the steps of docking the opening in the container with a transfer apparatus including a powder-feed duct and dropping a coupling |
