Abstract: The present invention relates to a baby feeding bottle. The baby feeding bottle employs a simple structure in which an assembly portion having a ring-shaped assembly groove is formed on the outside of the top of a feeding bottle body, a horizontal stop protrusion portion and a vertical coupling protrusion portion are formed on the outside of the bottom of the feeding bottle body, a silicone tube is fined into the outside of the feeding bottle body, a ring coupling portion at the upper end of the silicone tube assembly groove is coupled to the assembly portion in a sealed manner by being inserted to the assembly portion, and a horizontally bent portion at the lower end of the silicone tube is coupled to the stop protrusion portion in a sealed manner by locating the horizontally bent portion and then pressing the horizontally bent portion with the sealing cap.

Abstract: A wire-line core drilling tool includes an outer barrel assembly and an inner barrel assembly. The inner barrel assembly is provided with an elastic clamp positioning mechanism, an in-place reporting and core blockage alarm mechanism, a single-action mechanism, a core barrel check valve mechanism, a core barrel and a core-breaking mechanism. The elastic clamp positioning mechanism adopts a multi-point hinged mode. The in-place reporting and core blockage alarm mechanism is integrally formed. The single-action mechanism adopts a cooperating structure of an upper polycrystalline diamond compact (PDC) bearing, a lower PDC bearing and a tungsten carbide (TC) bearing arranged in the middle. The outer barrel assembly is provided with an elastic clamp retaining head, an elastic clamp chamber, an upper reamer, an outer barrel, a lower reamer and a drill bit. A ring base is arranged, and a centralizing ring is arranged.

Abstract: The present application provides approximately spherical lactic acid-glycolic acid copolymer (PLGA) microparticles comprising a biologically active substance, wherein an average volume-based particle diameter of the PLGA microparticles is 1 ?m or more and 150 ?m or less, and a Reactive Span Factor (R.S.F.) of the PLGA microparticles is satisfied with formula (1): 0.1<(R.S.F.)?1.7 formula (1), wherein an R.S.F. means (D90?D10)/D50; D90 is a particle diameter (?m) corresponding to the cumulative 90% by volume of the cumulative particle diameter distribution from the small particle side; D50 is a particle diameter (?m) corresponding to the cumulative 50% by volume of the cumulative particle diameter distribution from the small particle side; and D10 is a particle diameter (?m) corresponding to the cumulative 10% by volume of the cumulative particle diameter distribution from the small particle side; and an efficient production method thereof.

Abstract: The present invention relates to silicon coated metal microparticles in which at least a part of a surface of a metal microparticle composed of at least one of metal elements or metalloid elements is coated with silicon, wherein the silicon coated metal microparticles are a product obtained by a reduction treatment of silicon compound coated precursor microparticles in which at least a part of a surface of a precursor microparticle containing a precursor of the metal microparticles is coated with a silicon compound, or silicon doped precursor microparticles containing a precursor of the metal microparticles. Because it is possible particularly to strictly control a particle diameter of the silicon compound coated metal microparticle by controlling conditions of the reduction treatment, design of a more appropriate composition can become facilitated, compared with a conventional composition, in terms of diversified usages and desired properties of silicon compound coated metal microparticles.

Abstract: A directly connected drill pipe applicable to extreme conditions includes a tool joint pin and a tool joint box, where an external pipe section is located on an external side of a threaded section of the tool joint pin, and an annular groove is formed between the external pipe section and the threaded section of the tool joint pin. An insertion section of the tool joint box can be inserted into the annular groove in a matched manner. A main shoulder of the tool joint pin is located at an end of the external pipe section, a main auxiliary shoulder of the tool joint pin is located on a bottom surface of the annular groove, and an auxiliary shoulder of the tool joint pin is located at a small end of the tool joint pin. The tool joint box has three corresponding shoulders which form a 3-stage sealing with the tool joint pin.

Abstract: Techniques described herein relate to an article, including an electrolytic tank for refining metals, and related production techniques, wherein the article defines a channel or cavity receiving a corrosive medium including sulfuric acid. The article includes a corrosion-resistant lead coating including at least one layer of lead solidified onto at least a portion of the cavity. The corrosion-resistant coating can be combined with additional layers including fiberglass-based material for further protection against corrosion.

Abstract: A power screw driver includes a housing with a vacuum chamber communicating with a source of sub-atmospheric pressure, a motor, a drive spindle, a screw engaging bit connected to the drive spindle, a suction nozzle surrounding and being rigidly secured to the bit, and a bit supporting sleeve having a forward end part and a rear end part. The rear end part of the bit supporting sleeve is connected to the drive spindle and extends into the vacuum chamber. The forward end part of the bit supporting sleeve in contact with the suction nozzle. At least one longitudinal internal passage extends through the bit supporting sleeve and is arranged to communicate sub-atmospheric pressure from the vacuum chamber to the suction nozzle.

Abstract: An electric pulse tool delivers torque in pulses on an output shaft of the electric pulse tool. The electric pulse tool includes an electric motor with a rotor and a gear arrangement adapted to drive the output shaft. The electrical pulse tool is operative, for each period, to control the speed of the rotor until a play in the gear arrangement is determined to be closed and the gear arrangement starts to move the output shaft.

Abstract: 3D Printed and Combined Building Wallboard (100, 200, 300) including external decorative plate (7), 3D printed external wallboard (1), cement concrete layer (9), 3D printed internal wallboard (2), internal decorative plate (8), and structural reinforcement component (10). Structural reinforcement (10) includes vertical steel reinforcements (5) and horizontal steel reinforcements (11) continuously bent in a convex-concave way along the lengthwise direction. The convex edge and the concave edge of each horizontal reinforcement (11) are respectively located in the wallboard of 3D printed external wallboard (1) and the wallboard of 3D printed internal wallboard (2). External decorative plate (7) is fixed on 3D printed external wallboard (1), internal decorative plate (8) is fixed on 3D printed internal wallboard (2), and the space between 3D printed external wallboard (1) and 3D printed internal wallboard (2) is filled with cement concrete layer (9).

Abstract: An electric power tool for tightening screw joints includes a housing that encloses an electric motor, an angle gear, a back torque transducer, and a front torque transducer. The angle gear includes an input bevel gear drivingly connected to the electric motor and an output bevel gear drivingly connected to an output shaft of the electric power tool. The back torque transducer is arranged to measure a back torque reaction value before the input bevel gear. And the front torque transducer is arranged to measure a front torque reaction value after the output bevel gear.

Abstract: A wire-line core drilling tool includes an outer barrel assembly and an inner barrel assembly. The inner barrel assembly is provided with an elastic clamp positioning mechanism, an in-place reporting and core blockage alarm mechanism, a single-action mechanism, a core barrel check valve mechanism, a core barrel and a core-breaking mechanism. The elastic clamp positioning mechanism adopts a multi-point hinged mode. The in-place reporting and core blockage alarm mechanism is integrally formed. The single-action mechanism adopts a cooperating structure of an upper polycrystalline diamond compact (PDC) bearing, a lower PDC bearing and a tungsten carbide (TC) bearing arranged in the middle. The outer barrel assembly is provided with an elastic clamp retaining head, an elastic clamp chamber, an upper reamer, an outer barrel, a lower reamer and a drill bit. A ring base is arranged, and a centralizing ring is arranged.

Abstract: A method performed by a monitoring node associated with a tool communication network of monitoring energy flow in a tightening tool connected to the communication network includes receiving, from the tightening tool, parameter values relating to current fed (I) into the tightening tool, angle (?) of a rotor in the tightening tool and torque (T) applied to a joint by the tightening tool. The method also includes calculating energy input to the tightening tool based on the received parameter values, calculating energy transferred to the joint by the tightening tool based on the received parameter values relating to the torque applied to the joint by the tightening tool and the angle (?) of the rotor in the tightening tool. The method further includes detecting that the calculated energy input deviates from the calculated energy transferred to the joint by more than a predetermined value.

Abstract: A semiconductor sensor includes a source element; a drain element; and a semiconductor channel element between the source element and the drain element, forming an electrically conductive channel. An insulator is positioned between the semiconductor channel element and a solution to be sensed. A reference contacts the solution and sets an electric potential of the solution. A bias voltage source generates an external sensor bias voltage for electrically biasing the reference electrode. A sensing surface interacts with the solution comprising analytes for generating a surface potential change at the sensing surface dependent on the concentration of analytes. The sensor further includes a ferroelectric capacitance element between the insulator and the bias voltage source for generating a negative capacitance for a differential gain between the external sensor bias voltage and an internal sensor bias voltage sensed at a surface of the channel element facing the insulator or ferroelectric capacitance element.

Abstract: An electric pulse tool includes an electric motor drivingly connected to a flywheel, an output shaft drivingly connected to a drive element, and a compression spring. The electric pulse tool is operative to oscillate the flywheel between a first and a second direction. The flywheel is configured to drive the drive element in the first direction to provide a torque pulse on the output shaft in the first direction, whereby the drive element compress the compression spring. The drive element is configured to drive the flywheel in the second direction, when the compression spring is decompressed and forces the drive element to rotate in the second direction.

Abstract: The present application provides a microsphere comprising a lactic acid-glycolic acid copolymer (PLGA) or polylactide (PLA) 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 variation coefficient of area ratios in six regions is 0.35 or less, wherein the area ratios in six regions are calculated by (s/A)×100 (%) wherein the six regions are prepared by preparing a cross section observation sample obtained by cutting the microsphere; observing the cross section observation sample with an electron microscope at a magnification capable of confirming the biologically active substance in the microsphere or a higher magnification; and dividing the electron microscope observation image into six regions; and A is an area of a respective divided region, and s is a sum of cross section areas of the biologically active substance included in the respective divided region.

Abstract: A cutting tool (35) for machining a differential case, the cutting tool (35) being attached to a machining apparatus and used to perform cutting on a spherical inner surface of a differential case (10), the cutting tool (35) including: a shaft part (50); a cutting edge (51) laterally protruding from the shaft part (50); a fixing part (53) formed at one end side of the shaft part (50) and that is for fixing the shaft part (50) to the machining apparatus; and a retaining part (54) formed at the other end side of the shaft part (50) and that is for retaining the shaft part (50) by the machining apparatus, wherein the cutting tool (35) is able to perform cutting on the spherical inner surface of the rotating differential case (10) in a both-ends-held state in which both the fixing part (53) and the retaining part (54) are supported by the machining apparatus.

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: An electric power tool, configured to perform tightening operations where torque is delivered in a series of pulses, includes an electrical motor adapted to drive a rotating shaft of the electric power tool, and an angle sensor for sensing a parameter related to an angular displacement of the electric power tool. The electric motor is adapted to be fed with a train of controlled current pulses. The electric power tool is adapted to control a current supplied in the current pulses based at least in part on an output signal from the angle sensor to not exceed a limit threshold value for the parameter related to an angular displacement of the electric power tool.

Abstract: A power wrench includes a cylindrical housing, a motor, and an angle head attached to the housing and supporting an output shaft in a laterally extending position. The angle head is connected to the housing via a swivel coupling to enable rotation of the angle head and adjustment of the angular position of the output shaft relative to the housing. A releasable locking device is included between the angle head and the housing for arresting the angle head in alternative angular positions relative to the housing.

Abstract: A forced separation device for a submarine drilling machine and a drilling tool comprises a transmission shaft, a main shaft, an electromagnetic transmission mechanism, a blasting separation mechanism and a pressure-resistant cabin, a gland is fastened to the upper portion of the pressure-resistant cabin, the electromagnetic transmission mechanism is provided with a driving sucker and a driven sucker, the driving sucker is connected with the transmission shaft, the driven sucker is connected with the main shaft, the gland is welded with the transmission shaft, and the driven sucker is welded with the lower portion of the pressure-resistant cabin; the blasting separation mechanism is provided with explosive packages and detonators, a plurality of explosive packages are distributed between the gland and the top surface of the pressure-resistant cabin, and each explosive package is connected with the corresponding detonator respectively; and the pressure-resistant cabin is further internally provided with a stor