Abstract: A method for manufacturing a part made from composite material of a thermoplastic or thermosetting matrix reinforced with fibers includes producing a structure of fibers, that is optionally pre-impregnated. The method further includes aligning and juxtaposing fibers, while stretching them between return elements, and keeping them separated from each other, so as to obtain a first layer. The method includes superimposing, on said first layer, a second layer obtained in an identical manner to the first, in which the fibers are parallel to those of the first layer and kept apart from it. The method includes repeating the superimposing operation until the desired thickness is obtained and stiffening the material making up the matrix (M) by a method that suits its nature.

Abstract: The present specification relates to a two-speed power transmission for a power tool comprising a planetary gear and a torque responsive gear shift mechanism for directing torque through the planetary gear in a high torque/low speed mode or past the planetary gear in a low torque/high speed mode, and comprising a driving member, a driven member, and a number of coupling elements arranged to intercouple in a first position the driving member and the driven member and in a second position the planetary gear and the driven member, the driving member comprising a number of recesses and axially acting first cam means for cooperation with the coupling elements in the first position forming part thereof. The present specification also relates to power tool comprising such a gear unit and a method for controlling such a power tool.

Abstract: A sensor for the continuous in-situ analysis of an aerosol flow for measuring the mass of the micron/submicron particles suspended in the air flow, including an aeraulic sorter allowing the particles to be sorted according to their size with an impactor body with a cascade of one or more stages; at least one MEMS microbalance per stage, with an oscillating silicon membrane located on the impaction zone of the particles; processor connected to each MEMS microbalance to determine the mass of all the particles on the impaction zone; a system for cleaning the MEMS microbalances allowing the evacuation of the particles from the MEMS microbalances; means for driving the aerosol flow.

Abstract: Tightening tool comprising a body (11), containing control circuits and an electronic processing unit having at one end a handle (12) for gripping by an operator performing the tightening, and at the other end an arm (13). Such arm at its free end comprises a seat (16) into which a plurality of inserts can alternatively be inserted, suitable for engaging the tool with a corresponding type and/or size of a mechanical member on which the tool is intended to act to perform a tightening operation. Sensor means are provided on said arm suitable for detecting tightening conditions exerted on said mechanical member. Such sensor means comprise at least one inertial measurement unit (IMU) connected to such electronic processing unit, capable of detecting tool rotations about the three cartesian axes (x, y and z) and direct accelerations along such axes.

Abstract: The present application provides black perylene pigment microparticles having an average circularity of 0.8 or more which are amorphous; and a method of producing the black perylene pigment microparticles, which comprises a step of mixing a pigment solution in which a black perylene pigment is dissolved and a precipitation solvent for precipitating black perylene pigment microparticles from the pigment solution to form black perylene pigment microparticles, wherein at least one of the pigment solution and the precipitation solvent independently includes a salt of an alkaline earth metal and/or a particle growth inhibitor. The present invention can provide black perylene pigment microparticles having good dispersibility, high concealability and light-shielding property and controlled hue and chroma, and a method of easily producing the same, and the like.

Abstract: The present invention relates to a block (1) for the CAD/CAM machining of a dental prosthetic element: an insert (2) wherein the dental prosthetic element is intended to be machined, a polymeric layer (5) covering at least one surface of the insert, a mandrel (6) fixed to the insert (2), characterised in that the insert (2) comprises two parts (3, 4) connected to one another, of which: a first part (3) intended to be machined to form an inlay-core, said first part comprising a composite material comprising one-directional reinforcing fibres, a second part (4) intended to be machined to form a crown, said second part having no reinforcing fibres and comprising a material comprising one or more mineral fillers.

Abstract: In a coloring ultraviolet protective agent, the average molar absorption coefficient in the wavelength range from 200 nm to 380 nm is increased, and the color characteristics in the visible region are controlled. The coloring ultraviolet protective agent is useful for shielding ultraviolet rays and coloring.

Abstract: The present application provides a microsphere comprising a lactic acid-glycolic acid copolymer (PLGA) as a main component, in which a biologically active substance is uniformly dispersed, wherein an average volume-based particle diameter of the microsphere is 1 ?m or more and 150 ?m or less, and a mass of the biologically active substance or an empty hole of 1.5 ?m or more is not present in the microsphere. The microsphere of the present invention can appropriately control the initial release amount of the biologically active substance and its release rate during a subsequent release period, and can continuously release the biologically active substance in vivo for a predetermined period of time.

Abstract: A constant-velocity joint assembly for a power tool includes an output shaft and a coupling structure configured to drive the output shaft. The output shaft and the coupling structure form a joint configured to enable angling of the output shaft relative to the coupling structure at constant rotational speed, and the coupling structure is provided with a torque transducer configured to detect a torque acting on the coupling structure provided by the output shaft.

Abstract: A heat exchanger includes a structure that is advantageous in increasing the overall heat transfer coefficient which represents the efficiency of heat exchange. Three flow paths, a first flow path, a second flow path, and a third flow path, which turn spirally in the space formed between an inner cylinder and an outer cylinder are provided. These flow paths are defined by an inner heat transfer body and an outer heat transfer body, and heat exchange is performed through the heat transfer bodies. The heat transfer bodies turn spirally, have a screw shape in an axial cross-sectional view, and are assembled into a screw shape. The flow path area of the first flow path is varied by changing the shapes of a male thread and a female thread, and the second flow path and the third flow path are formed in a spiral shape, allowing for exchange of heat through the heat transfer bodies.

Abstract: A vessel electrical penetration assembly for a feed-through of nuclear reactor vessel, the assembly including: a docking tube to form an extension of the secondary containment barrier of the reactor, the docking tube including: a first end to be positioned in the interior of the vessel and to be mechanically and sealably connected to an actuator in the interior of the vessel, and a second end to be mechanically and sealably secured to the vessel; a seal-tight electrical bar that passes through the docking tube and having on either side seal-tight connectors ensuring an electrical link between the actuator and the exterior of the reactor; the seal-tight electrical bar including a system for limiting a leakage of primary liquid to the exterior of the vessel if the secondary containment barrier extension fails; and a mechanical maintaining system for securing, under the required pressure conditions, the electrical bar to the vessel.

Abstract: A universal inter-row hoe arranged to be trailed to a tractor and including at least: a guide interface trailed to the tractor, a frame secured to said guide interface, and a plurality of lifting members each being removably fastened on said frame, and allowing lifting a plurality of tool carriers thanks to an actuator hydraulically connected to a hydraulic block. The universal inter-row hoe includes a hydraulic distribution circuit.

Abstract: A power screwdriver includes a housing having a vacuum chamber arranged to communicate with a source of sub-atmospheric pressure. The power screwdriver includes a motor, a bit drive spindle, and a bit supporting sleeve connected to the bit drive spindle. The rear end part of the bit supporting sleeve is surrounded by the vacuum chamber. The bit supporting sleeve is journaled by a bearing between a forward end part and a rear end part of the bit supporting sleeve. The bit supporting sleeve includes at least one longitude vacuum passage extending from its rear end part to its forward end part.

Abstract: A torque transmitting assembly for a power tool comprising an angle head having a first output shaft which is rotational about a rotational axis and arranged to be connected to a power tool motor for transmitting a rotational movement from the motor to the first output shaft; a power tool attachment part having an input shaft connectable to the first output shaft, a second output shaft and a gear arrangement for transmitting rotational movement from the input shaft to the second output shaft; and fixation means for fixation of the attachment part to the angle head. The fixation means comprises first fixation means arranged to prevent axial displacement of the attachment part relative to the angle head; and second fixation means arranged to prevent rotation about the rotational axis of the attachment part relative to the angle head, which second fixation means is separate from the first fixation means.

Abstract: A torque transmitting assembly for a power tool comprising an angle head having a first output shaft which is rotational about a rotational axis and arranged to be connected to a power tool motor for transmitting a rotational movement from the motor to the first output shaft; a power tool attachment part having an input shaft connectable to the first output shaft, a second output shaft and a gear arrangement for transmitting rotational movement from the input shaft to the second output shaft; and fixation means for fixation of the attachment part to the angle head. The fixation means comprises first fixation means arranged to prevent axial displacement of the attachment part relative to the angle head; and second fixation means arranged to prevent rotation about the rotational axis of the attachment part relative to the angle head, which second fixation means is separate from the first fixation means.

Abstract: Process for the preparation of a TiO2 photocatalyst/biomass carrier, with TiO2/MxOy nanocrystals, of at least nanometric size and photocatalysis-active at least in visible light, consisting of the following steps: a) preparation and heating of an aqueous solution of hydrochloric acid with a given pH, between 0 and 6, and at a temperature between 20° C. and 60° C.

Abstract: A method and a device for detecting the oil level in a hydraulic pulse unit at an impulse type power wrench, wherein the pulse unit comprises an oil filled pulse chamber, a motor driven inertia drive member, and a kinetic energy receiving member connected to an output shaft and intermittently coupled to the inertia drive member via an oil cushion to receive kinetic energy from the inertia drive member during repeated energy transfer phases. The rotation speed of the inertia drive member is measured both at the start of a pulse generating phase and at the end of that phase, wherein the two measured speeds are compared to each other, and when the speed at the end of the pulse generating phase exceeds the speed at the end of that phase by a certain percentage a faulty signal is emitted indicating a too low oil level in the pulse unit.

Abstract: A nuclear reactor vessel includes a shell (5) having a wall (9) traversed by at least one passage (11) having a central axis (C) and a valve (21) mounted in the passage (11), the valve (21) having a determined outer cross-section. The passage (11) has an inner end segment (23) that opens into the inner volume (7) and an outer end segment (25) that opens into an outer piping (13), the valve (21) being housed in the inner end segment (23). The valve (21) is capable of being extracted from the passage (11) through the inside of the vessel (1). The outer end segment (25) has at least one portion having an inner cross-section, perpendicular to the central axis (C), that is smaller than the outer cross-section of the valve (21), such that the valve (21) cannot be ejected out of the vessel (1).

Abstract: A machining apparatus includes: a shuttle unit (3) that holds a differential case (10) and rotates the differential case (10); a pair of opposed right and left machining units (4); and a tool support (6) that supports a tool (40) for machining the differential case (10), in which the pair of right and left machining units (4) each include a slide mechanism dedicated for uniaxial sliding in right and left directions, the shuttle unit (3) is movable in up and down directions and front and back directions, a tool attached to each of the pair of right and left machining units (4) enables machining an end portion of an inner surface of the differential case (10) and a flange hole of the differential case (10), the end portion surrounding a through hole, and a cutting edge of the tool (40) supported by the tool support (6) enables spherically cutting the inner surface of the differential case (10) held and rotated by the shuttle unit (3).

Abstract: A handheld electric power tool includes a drive train assembly arranged along a longitudinal axis of the tool, a housing adapted to receive the drive train assembly, and a retaining ring. The housing includes a first portion and a second portion adapted to form the housing, which has a conical outer surface portion having a substantially circular cross section. The retaining ring includes an inner surface having a conical inner surface portion adapted to cooperate with the conical outer surface portion such that a force is exerted on the first and second housing portions via the retaining ring as the conical inner surface and the conical outer surface are axially displaced with respect to one another, thereby urging the first and second housing portion together.