|1.||WO||WO/2015/011344 - METHOD FOR CALCULATING THE INTERACTION POSITION OF A GAMMA PHOTON WITH A SCINTILLATOR CRYSTAL, AND PET DEVICE AND SYSTEM IMPLEMENTING THE METHOD||29.01.2015||
|PCT/FR2013/051812||DE RAULIN, Gonzague||LIKSONOV, Dmitriy|
A method for calculating the interaction position of a gamma photon with a scintillator crystal (7) in a sensor (6) of a positron emission tomography (PET) system (1), said calculation method comprising the following steps: A- Measuring first and second quantities of light energy representative of a photoelectric interaction from the interaction of the gamma photon with the scintillator crystal (7), said first and second quantities of light energy being measured respectively at first (7a) and second (7b) opposing ends of the scintillator crystal (7) between which said scintillator crystal (7) extends, B- determining first and second estimations of the interaction position respectively from the first and second quantities of light energy measured, C- calculating the interaction position from a weighted average of the first and second estimations.
|2.||WO||WO/2015/011343 - SINGLE-CRYSTAL SCINTILLATOR BAR FOR PET IMAGING DEVICE||29.01.2015||
|PCT/FR2013/051811||DE RAULIN, Gonzague||GENIX, Michael|
The aim of the invention is to improve the determination of DOI in elementary scintillators in the form of crystal bars forming the detectors (bars) of PET functional imaging devices, which will then benefit from optimal quality spatial resolution. For this purpose, the invention concerns a gamma photon detector bar consisting of a parallelepiped single-crystal scintillator, comprising two end faces (F1, F2) intended to receive light energy respectively (E1, E2) from the scintillation of annihilation photons, said bar having transverse grooves extending along a length Ls representing at least 50% of the width ℓb of the bar, preferably across the whole width of the bar, characterised in that 1. The 4 side faces of the bar, and preferably the two end faces, are optically polished; 2. It comprises transverse grooves on at least two faces, preferably two opposing faces; 3. The grooves have different abscissa (x) on the longitudinal axis (X) 4. The ratio (total number of grooves N / length Lb of the bar in mm) is between 0.1 and 15; 5. The depth (P) of the grooves is less than or equal to 250 µm. The invention also concerns a PET imaging method and device comprising such bars.
|3.||WO||WO/2015/011345 - METHOD AND DEVICE FOR IMPROVING THE FILTERING OF COMPTON INTERACTIONS FOR PET IMAGING||29.01.2015||
|PCT/FR2013/051814||DE RAULIN, Gonzague||LIKSONOV, Dmitriy|
The invention concerns a method for acquiring the photoelectric interactions (scintillations) of gamma photons in a crystal medium, consisting of at least one single-crystal gamma photon detector bar, preferably for detecting annihilation gamma photons for a PET imaging device. The aim of the invention is therefore, in particular, to improve the filtering of Compton interactions in a crystal scintillator bar provided with an energy detector E1, E2 at each of the ends of same. Optimising the Compton filtering and therefore the accuracy of the LOR's ultimately allows the PET image to be improved. In order to achieve this aim, the invention proposes filtering Compton interactions in comparison to a photoelectric interaction when acquiring scintillations for application to PET medical imagery. This filtering is carried out from the light energy measured at each end of the scintillator bar compared to predefined thresholds. The method according to the invention comprises - calibrating the behaviour of the typical crystal - optionally quickly assessing the interaction position for each scintillation - defining minimum and maximum thresholds for any interaction position if the thresholds are constant or for each position if the thresholds are variable - comparing the total energy of the scintillation with the thresholds - if the energy is between the thresholds, the scintillation is kept. This invention makes it possible to reduce the number of false interactions taken into account when determining coincidences and therefore to minimise the quantities of data to be processed and transferred. This improves the quality of the data used for constructing an image having good resolution.
|4.||WO||WO/2015/011349 - DUAL-CLUTCH GEARBOX WITH TWO INPUT CLUTCHES AND A RANGE SHIFTER||29.01.2015||
|PCT/FR2014/051257||RENAULT S.A.S||PESCAROU, Philippe|
Dual-clutch gearbox with two input clutches (E1, E2) comprising two, concentric, primary shafts (110, 100) connected respectively to the first clutch (E1) and to the second clutch (E2) and bearing a set of fixed gears (101, 102, 111, 112, 113), a secondary shaft (200) bearing several idler gears (210, 211, 212, 213) meshing with the fixed gears of the primary shafts and a reverse-gear auxiliary shaft (300) bearing a reverse gear (301, 302) in mesh with a fixed gear (111) of the primary shaft and a gear of the secondary shaft, the gearbox being characterized in that a first idler gear (212) of the secondary shaft meshing with a fixed gear (111) of a first primary shaft (110) can be coupled with a second idler gear (211) of the secondary shaft meshing with a fixed gear (102) of the second primary shaft (100) so as to cause the torque received from one primary shaft (110, 100) to pass, in at least one gear ratio of the box, via the other primary shaft (100, 110) before being output on the secondary shaft (200) to the wheels of the vehicle.
|5.||WO||WO/2015/011358 - SEALING DEVICE FOR PISTON||29.01.2015||
|PCT/FR2014/051715||RABHI, Vianney||RABHI, Vianney|
The sealing device (1) for a piston (2) the fixed skirt (5) of which moves in a cylinder (8), comprises a sliding skirt (6) through which there passes axially a pressure-transmitting duct (10) and which is connected to the fixed skirt (5) by an inter-skirt mechanical connection (7) while an extendable continuous piston ring (9) is interposed in a sealed manner between said skirts (5, 6) and can come into contact with the cylinder (8) when the piston-ring internal cylindrical face (12) thereof is subjected to the pressure of a fluid (36) via the pressure-transmitting duct (10), a sliding-skirt spring (16) tending to bring said skirts (5, 6) together and to compress the extendable continuous piston ring (9) axially between said skirts (5, 6).
|6.||WO||WO/2015/011368 - PUMPING BLOCK DEVICE HAVING AN INTEGRATED BYPASS CIRCUIT||29.01.2015||
|PCT/FR2014/051814||TOTAL SA||BIBET, Pierre-Jean|
The present invention relates to a polyphasic pumping block device (110) comprising a pump (110) suitable for pumping a pumping fluid and a bypass circuit (157). Said bypass circuit is suitable for enabling the flow of a fluid from an area upstream of the pump to an area downstream of the pump by bypassing the pump. The latter comprises at least one non return valve (113) suitable for blocking the flow of the fluid from the area downstream of the pump to the area upstream of the pump. In addition, the pumping block device is suitable for being connected to a set of pumping circuits, said set of circuits comprising a main bypass circuit (152) suitable for enabling the flow of a fluid from an area upstream of the connected pumping block to an area downstream of the connected pumping block by bypassing said connected pumping block. Finally, the pumping block device is arranged in order to be disconnected from said set of circuits for maintenance.
|7.||WO||WO/2015/011356 - METHOD AND MACHINE FOR ETCHING OPTICAL LENSES||29.01.2015||
|PCT/FR2014/051635||ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)||LEMAIRE, Cédric|
The invention concerns a method for machining an optical lens by means of a trimming machine, comprising: - a step of locking said optical lens, - a step of acquiring shape characteristics of the optical faces of the optical lens, - a step of generating an instruction for trimming the optical lens, and - a step of trimming the optical lens along a desired contour. The invention also concerns the following steps: - a step of generating an instruction for etching the optical lens depending on the acquired shape characteristics, and - a step of etching said optical lens along a line located inside said desired contour, during which a pointed etching tool (280) of said trimming machine is controlled according to said etching instruction in such a way that the point (284) of same continually slides against said optical face in order to score same along said line.
|8.||WO||WO/2015/011367 - METHOD FOR MANUFACTURING A THERMOELECTRIC MODULE BASED ON A POLYMER FILM||29.01.2015||
||PCT/FR2014/051806||COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES||MASSONNET, Nicolas|
The invention relates to a method for manufacturing a thermoelectric module comprising a substrate and at least one conductive or semi-conductive polymer film deposited on a surface of the substrate, which method comprises a step (12) of manufacturing the conductive polymer film independently of the surface of the substrate and the transfer (14) of the conductive polymer film to the surface of the substrate. The transfer (14) comprises: immersing (26) the conductive polymer film in a transfer bath so as to obtain a conductive polymer film that is solvated, self-supporting and capable of matching the shape of the surface of the substrate; applying (28) the conductive polymer film in the solvated state thereof onto the substrate such as to match the shape of the surface thereof; and drying (30) the solvated conductive polymer film.
|9.||WO||WO/2015/011366 - CENTRIFUGAL PUMP, IN PARTICULAR FOR SUPPLYING POWER TO ROCKET ENGINES||29.01.2015||
The invention relates to the field of centrifugal pumps, and in particular to a centrifugal pump (303, 403) including at least one impeller (303a, 403a), a rotatable shaft (302, 402) that is rigidly connected to said impeller (303a, 403a), a housing (320, 420) having an axial intake passage (325, 425), at least one first bearing (305, 405) supporting said rotatable shaft (302, 402) in said housing (320, 420), and at least one dynamic seal (311, 411) around the rotatable shaft (302, 402), the impeller (303a, 403a) being located between the at least one dynamic seal (311, 411) and the axial intake passage (325, 425) of the pump (303, 403). Said centrifugal pump (303, 403) also includes, between the impeller (303a, 403a) and the at least one dynamic seal (311, 411), an axial force compensation disk (330,430), rigidly connected to the shaft (302, 402), and having a diameter larger than 70 % of the diameter of the impeller (303a, 403a). A front surface (330a, 430a) of said disk (330, 430) faces the impeller (303a, 403a) and is connected to a bypass for pressurized fluid taken downstream of the pump (303, 403), and a rear surface (330b, 430b) faces the dynamic seals (311, 411) and has blades (330c, 430c) having a pitch that is least partially radial.
|10.||WO||WO/2015/011401 - LABELLING DEVICE HAVING A HOOK, FOR A COMMERCIAL ITEM||29.01.2015||
The invention relates to a device for labelling a commercial item including two separable portions: a first portion (12) comprising an axial tip (14); a second portion including an opening for the axial insertion of the tip and means for locking the tip inserted into said opening. One of said portions, referred to as the hooking portion, includes a hooking member (32) which is capable of pivoting between a first position in which a free end of the member is spaced apart from the hooking member and a position in which the free end is arranged in a recess (50) of the hooking portion. The hooking portion is configured such that the free end (32a) of the hooking member is locked in the recess (50; 108) by the presence of the other portion of the device which is locked to the hooking portion via the tip (14) and the locking means thereof.