Abstract: The invention is a method of executing an application embedded in a portable electronic device. The application comprises one instruction handling an object. The electronic device comprises a firewall which is intended to check the compliance of the object with preset security rules. The portable electronic device comprises a volatile memory area intended to store a data set uniquely associated to the object. The data set comprises an indicator reflecting the result of the checking of the compliance of the object with the preset security rules. The method comprises the following steps before execution of the instruction, checking the presence in the volatile memory area of a data set associated to the object and comprising an indicator reflecting a successful checking of security rules, and if successful in the checking of the data set, authorizing the execution of the instruction without further security rules checking done by the firewall.

Abstract: The invention relates to a device for generating essentially radial displacements and/or stresses of at least one mechanical part with respect to its X-X axis common with that of at least one other mechanical part functionally connected to the first one, said device comprising: (I) a frame, a swivelling ring (11) and an internal ring producing two nested ball joint connections (a) and (b) with respective centres A and B, eccentric by a distance or value ? along said X-X axis common to the two rings in a position said to be neutral, (II) one or more actuators in a barrel arrangement about the X-X axis for driving the mechanism, each actuator acting on the swivelling ring (11) via a guided push rod (3), and (III) a guide ring (4) for guiding the push rods (3) via a bidirectional planar link (e), while the swivelling rings (11, 13) are steerable by means of push rods (3) displaced by the actuators (2) and guided by the guide ring (4), and while said swivelling rings are rotatable in their respective housings

Abstract: The invention relates to a personal token for a mobile telecommunication network, hosting application software. The personal token is operable to receive an over-the-air SMS message encapsulating commands directed to the application, open the SMS and extract the commands from the SMS. The steps of opening the SMS and extracting the commands from the SMS are performed by a software entity in the personal token which is distinct from the application, so that the software entity initiates transmission of the extracted commands to the application.

Abstract: This mandrel (10) comprises a body (16; 22) and a radially expandable annular sealing element (18) which comprises a centring arrangement (46) and a closure arrangement (44) which can be deployed radially between a contracted configuration and a dilated configuration. It further comprises an anchoring element (20) which is positioned at a longitudinal distance from the sealing element (18) and is radially expandable between a retracted state and a deployed state. The mandrel (10) comprises sequencing means (24) which are capable of radially deploying the closure arrangement (44) after the anchoring element (20) and the centring arrangement (46). In an at least partly deployed configuration, the centring arrangement (46) defines at least one axial passage (64) which extends through the annular sealing element (18). The closure arrangement (44) closes the or each axial passage (64) as it is deployed.

Abstract: The mandrel comprises a body having a longitudinal axis together with a radially-expandable annular assembly. The annular assembly presents a peripheral surface for pressing against a borehole and a peripheral surface for pressing against the body. Around the longitudinal axis, the annular assembly comprises a plurality of radial-expansion blocks. Each block has a first bearing surface, a second bearing surface, and two side surfaces disposed respectively facing a side surface of at least one adjacent block. The block are displaceable relative to one another between a radially-contracted configuration, and a radially-expanded, engagement configuration in which each side surface of a block is in contact with the side surface of the adjacent block.

Abstract: The device relates to an installation comprising a cavity extending from the surface of the ground and provided with at least one electrically conductive tubular element. The device comprises a single-strand smooth cable for supporting an action and/or measurement assembly, which cable is electrically conductive and has a breaking strength greater than 300 daN, and is disposed in the tubular element. The surface of the cable is electrically insulated at least in part from said tubular element. The device includes transmitter means and receiver means for transmitting and receiving an electrical and/or electromagnetic signal, said means being situated in the vicinity of the surface and in the cavity, and being electrically connected to the cable and to the tubular element and/or an underground formation. The invention is applicable to transmitting information and to controlling tools in an oil well.

Abstract: The invention relates to a safety device for an oil well and to the associated safety installation. The inventive device comprises a valve housing (40) which defines a fluid flow passage (52). The aforementioned housing (40) comprises a valve (48) which is used to seal the passage and which can move between an open position and a closed position and means for permanently biasing the valve towards the closed position thereof. The housing (40) also comprises releasable means (54) for connecting same to a working line with tubing that is intended to move the housing (40) in the conduit. In addition, the device comprises retractable means (42) for supporting the valve (58) in the open position and hydraulic means (44, 46) for actuating the support means (42) in order to activate same upon reception of a valve open control signal. The aforementioned support means (42) and actuation means (44, 46) are solidly connected to the housing (40) such that they can be moved simultaneously under the control of the line.

Abstract: The invention concerns a drilling tool steering device, characterized in that it contains, consecutively from upstream to downstream, a main body (1) and a steerable housing (2), joined respectively by at least one connection of pivot, sliding pivot, ball joint or annular linear type forming a first bearing (4), and at least one pivot connection forming a second bearing (5), to a bendable or flexible transmission shaft (3) which crosses them longitudinally, while a connection of pivot, sliding pivot, annular linear or ball joint type forming a third bearing (6) between said transmission shaft and the main body (1) is arranged in proximity to the end of said main body situated in the direction of the steerable case, and while steering is carried out thanks to means acting as a deflection system (7) for the essentially radial relative displacement of the main body (1) in relation to the steerable housing (2) in proximity to their interface, the said main body being optionally equipped on its periphery with bear

Abstract: A method of managing a multi-application electronic device, such as a multi-application smart card, of the type having an operating system which is designed to support a plurality of applications. Each of the applications belongs to an application provider having a unique security domain which is initially installed on the card. Upon receipt of a command for an application to be loaded onto the device, the operating system verifies that the application is associated with a security domain corresponding to the security domain of the application provider. In the event of successful verification, the operating system authorizes the loading and installation thereof on the card, connecting the same automatically to the security domain.

Abstract: The mandrel comprises a body (16) presenting a longitudinal axis (X-X?) together with a radially-expandable annular assembly (18). The annular assembly (18) presents a peripheral surface (39) for pressing against a borehole and a peripheral surface (57) for pressing against the body (16). Around the longitudinal axis (X-X?), the annular assembly (18) comprises a plurality of radial-expansion blocks (40, 42). Each block (40, 42) presents a first bearing surface (44), a second bearing surface (46), and two side surfaces (48A, 48B) disposed respectively facing a side surface (48B, 48A) of at least one adjacent block (42, 40). The blocks (40, 42) are displaceable relative to one another between a radially-contracted configuration, and a radially-expanded, engagement configuration in which each side surface (48A, 48B) of a block (40, 42) is in contact with the side surface (48B, 48A) of the adjacent block (42, 40).

Abstract: The invention relates to a quick-acting valve actuator comprising: a driven member (31) driven by a drive device (35) suitable for causing the driven member (31) to travel along a stroke (C1) to a trigger position; and locking-and-trigger means (41) co-operating with the driven member (31) and the actuator member (21) so that: during the stroke (C1), the actuator member (21) is stationary, and the driven member (31) is moving; and when the driven member (31) reaches the trigger position, the driven member (31) is held stationary, and the actuator member (21) is urged by prestress means (51) to open or close the valve.

Abstract: Data to be stored is managed in different management modes including at least a first management mode and a second management mode. An identification is provided during a data preparation phase, for respectively identifying the data to be managed according to the different modes, and then managing on the basis of the provided identification. The storage can be located in a programmable smart card. Thus the data can include a code associated with an application whereof part (management code) is designed to customize the application during an initial phase, the identification being related to the data associated with this code part.

Abstract: The device relates to an installation comprising a cavity (13) extending from the surface of the ground (17) and provided with at least one electrically conductive tubular element (21; 25). The device comprises a single-strand smooth cable (3) for supporting an action and/or measurement assembly (5), which cable is electrically conductive and has a breaking strength greater than 300 daN, and is disposed in the tubular element (21; 25). The surface of the cable (3) is electrically insulated at least in part from said tubular element (21; 25). The device includes transmitter means (9, 11) and receiver means (9, 11) for transmitting and receiving an electrical and/or electromagnetic signal, said means being situated in the vicinity of the surface (17) and in the cavity (13), and being electrically connected firstly to the cable (3) and secondly to the tubular element (21; 25) and/or to the formation (19). The invention is applicable to transmitting information and to controlling tools in an oil well.

Abstract: The invention relates to a quick-acting valve actuator comprising: a driven member driven by a drive device suitable for causing the driven member to travel along a stroke to a trigger position; and locking-and-trigger means co-operating with the driven member and the actuator member so that: during the stroke, the actuator member is stationary, and the driven member is moving; and when the driven member reaches the trigger position, the driven member is held stationary, and the actuator member is urged by prestress means to open or close the valve.

Abstract: The invention concerns the management of data designed to be stored in a storage (6), said data being designed to be managed in different management modes including at least a first management mode and a second management mode. The invention is characterised in that it consists in: providing an identification, during a data preparation phase, for respectively identifying the data to be managed according to the different modes, and managing and/or operating on the data on the basis of said provided identification (E6, P1). The storage can be located in a programmable smart card. Thus the data can include a code associated with an application whereof part (management code) is designed to customize the application during an initial phase, the identification being related to the data associated with said code part.

Abstract: A receiving cavity having a simple geometrical shape is machined in a metallic block having a simple geometrical shape made of a first metallic material. A member made of the second material is made and fixed into the cavity to produce a composite bimetallic block, and the turbine blade is machined from the composite block, the body of the blade being machined from the metallic block made of the first material and the insert being machined from the member of simple shape made of the second material. The member made of the second material can be prefabricated and welded into the cavity of made by depositing and solidifying a molten metal in the cavity. The invention applies in particular to manufacturing a blade of a low-pressure stage of a steam turbine.

Abstract: Process and installation for the preparation of hydrogen from water by an endothermic cycle of several successive chemical steps occurring at different temperatures with substantially total recycling of intermediates; the improvement involves in carrying out electrochemically only part of said reactions, including at least that of said reactions which occurs at the highest temperature when carried out chemically.