71results about How to "Safe condition" patented technology

An apparatus for handling a turbomachine part, particularly during disassembling and reassembling operations. More specifically, an apparatus for handling the stator cone of a gas turbine suitable to completely manipulate the stator cone during disassembling and reassembling operations. The apparatus allows to disassemble and reassemble the stator cone of a gas turbine without the need to dismount the turbomachine enclosure and without the necessity to have personnel inside the turbomachine package during the operations.

A safety light tube has a light string within the tube and is powered by a battery within a control assembly on the tube. The control assembly has controls such as an on-off switch and a flasher unit. The tube has, at both ends, a clip hook and a hook-and-loop fastener strap, providing dual means for attaching the ends to items such as dog leashes and to parts of the body, such as an arm.

Installation for harvesting energy of ocean currents (IHOC) in deepwaters is based on utilization of a semisubmersible platform and the multiple of vertically oriented Darrieus type hydraulic turbines. The turbines are located as close as possible to ocean surface, where speed of current is usually at its maximum. Since speed of current fluctuate during the seasons a system controlling buoyancy force of that keeps IHOC floating near surface is employed. The mooring system consists of three tethers, which prevent transferring of overturning moment applied to IHOC to anchoring base. The electric power generators are located in a machinery room on a structure well above sea level and would transmit electric power to the shore utilizing flexible cable. During hurricane it will be lowered to the depth preventing turbines from being affected by wave actions, at the same time it would keep machinery room above wave action. For the purpose of delivery assembled on shore Turbine Housing to destination site and installing it there a special convoy is formed consisting of Catamaran Delivery Barge and Stabilizing Platform.

The second Embodiment of this invention is designed to harvest energy of tides in deepwaters.

A dual functionality temperature control measurement and low water cutoff measurement system is taught within a single tapping to a boiler. This dual functionality combines a low water cutoff and temperature sensor into one control utilizing a sensing element suitable for use in a single existing tapping for a boiler. Independent of low water functionality, the temperature sensor is also capable of monitoring temperature as a replacement probe in an existing temperature sensor-only well. A conductive member provides a compression fit inside the probe well for thermistors, while simultaneously providing conduction with the well interior for a low water cutoff signal in a two-conductor well.

The invention relates to the preparation of a Fe5(PO4)4(OH)3 and the application belonging to the electrochemistry field. The positive electrode material of the existing lithium ion battery has the problems of low conductivity, ion diffusion rate and capacity, and so on. Through the invention, a lithium salt, an iron salt and a phosphate are added into a reactor according to a mole of ratio Li<+>:Fe<3+>:PO4<3+>=1:2:1 and kept in the reactor at the temperature of 200-250 DEG C for 1.5-2.5 h; then the reaction solution is washed to be transparent by the distilled water, filtered, and dried at the temperature of 80-120 DEG C; at last, the dried product is kept at the temperature of 350-450 DEG for 3-5 h so as to get the Fe5(PO4)4(OH)3. The Fe5(PO4)4(OH)3 provided by the invention can be used as the positive electrode material of the lithium ion battery. The invention has the advantages of having simple craft, low energy consumption and low cost, being safe, and having good electrochemical properties, thermal stability and industrialization prospect.

The invention belongs to the field of pharmaceutical polymer materials, in particular to a degradable polyethyleneimine (PCFC-PEI) cross-linked polymer capable of transferring chemotherapy drugs and gene drugs simultaneously, a preparation method and an application thereof. The PCFC-PEI carrier is a novel carrier material obtained by coupling polycaprolactone poloxamer-polycaprolactone and the polyethyleneimine, wherein the poloxamer is triblock copolymer of polyethylene glycol-polypropylene glycol-polyethylene glycol, the molecular weight thereof is 1100-12500, and the molecular weight of polyethyleneimine section is 600-25000. The degradable polyethyleneimine cross-linked polymer can be used as a novel drug-release carrier, and can transfer the micromolecular chemotherapy drugs and genetherapy drugs simultaneously, thus having wide application prospect in the preparation of anti-tumor drugs.

An apparatus for guiding wireline into a well bore comprising an insert bowl, the insert bowl having a substantially vertical groove formed in an interior surface thereof. A rotation means is preferably provided on the insert bowl, the rotation means configured and positioned to rotate against a wireline and maintain the wireline substantially in the groove when the insert bowl is positioned in a rotary table of a drilling platform, to thereby prevent damage to the wireline during wireline and drilling operations. The rotation means preferably comprises a support member and a wheel rotatably disposed in the support member, the support member being attached to a top of the insert bowl above the groove. The wheel is preferably configured as a sheave having a concave rim. The support member further preferably comprises a first block member positioned substantially along one side of the groove, a second block member positioned substantially along an opposite side of the groove, and an axle shaft passing between the first and second block members, the wheel being rotatably disposed on the axle shaft. In a preferred embodiment, the rotation means may be readily dismantled after use for inspection and maintenance.

A sensor system (1; 20; 30; 40) is proposed for detecting forces which, particularly in the case of a motor vehicle, lead to a deformation of components, e.g. body parts (10) as the result of an accident. The sensor system (1; 20; 30; 40) has a number of contact elements (2, 3, 4; 21, 22, 23; 31, 32, 33) which are arranged on the component (10) staggered one behind the other in a possible deformation direction (11), compressible insulation layers (5, 6, 7; 24, 25; 35, 36) being disposed between the contact elements (2, 3, 4; 21, 22, 23; 31, 32, 33). The contact elements (2, 3, 4; 21, 22, 23; 31, 32, 33) are electroconductively connected to an electronic evaluation circuit by which a contacting and/or de-contacting of adjacent contact elements (2, 3, 4; 21, 22, 23; 31, 32, 33), caused by a deformation, is able to be detected and converted into control and or regulating signals.

A double level flight deck type aircraft carrier is disclosed to include a second level of flight deck so that aircraft launching and landing operations can be separately performed on the decks. The double deck design doubles the operation capacity and capability.

The invention discloses a preparation method of an alpha-type nano aluminum oxide particle. The preparation method comprises the following steps of: using an inorganic acid solution as a dispersing agent; adding an aluminum source into the dispersing agent to be stirred till being completely dissolved so as to prepare an aluminum dispersing solution; subsequently transferring the aluminum dispersing solution into a three-neck flask; putting the three-neck flask with the aluminum dispersing solution into a reflux unit of glycerol bath to be heated to 95-100 DEG C; under the stirring condition, adding a prepared sodium hydroxide solution into the aluminum dispersing solution; generating white precipitate; refluxing for 8-10 hours at a stirring speed of 1000-1500 turns/min so as to obtain a mixture with the white precipitate; and finally centrifuging, washing and drying the mixture with the white precipitate in vacuum so as to obtain a substance, namely, the alpha-type nano aluminum oxide particle. The preparation method is simple in process, safe, pollution-free, low in cost and convenient to produce in large scale, and the alpha-type nano aluminum oxide particle is a while nano particle which is in alpha-Al2O3 configuration and the crystal particle size is 25-35nm, and the specific surface area is 60-90m<2>/g.

A probe for inspecting an anchor borehole has a video head provided with a color CCD sensor, a lens, a conical viewing window, and light-emitting diode for illuminating and optically scanning a borehole surface. The probe also has a travel sensor, an electronics module including two position sensors, a memory module, and a battery section carrying an infrared interface. The probe is cableless and autarchic. The battery section is secured to a leading end of a push rod.

A pressure discharge valve for storage tanks on land or trucks including a valve body having a through hole therein adapted to mate and communicate with a through hole in a wall of the storage tank, a first vent means comprised of a eutectic composition which automatically provides a partial release of storage tank liquid at a first predetermined temperature lower than critical combustion and/or explosive temperatures of liquid in the storage tank, to provide a visual signal and warning to firefighters of these hazardous conditions, and a second vent means comprised of a eutectic composition to automatically vent liquid in the storage tank through the hole in the valve body when the liquids therein reach a predetermined critical temperature. In addition, the pressure discharge valve preferably comprises a eutectic solder material disposed between the valve body and the second vent means, which changes phase (i.e., reaches its eutectic point) below the eutectic point of the second vent means, thereby providing a lubricant between the plug and the valve body.

The invention relates to a method for preparing bioepiderm pluran-polysaccharide nanometer particles, which comprises that dissolving bioepiderm pluran-polysaccharide derivant in organic solvent, adding it into water to form suspension, then dialyzing the suspension, filtering, concentrating, freezing and drying to obtain the nanometer whose average diameter is 100-300nm. And the preparation only needs some or no surface activator, with warm reaction condition and high safety. And the preparation nanometer particle has smooth and regular surface, which can combine tumor cell, as tumor target carrier material.

Apparatus for transporting used, damaged or defective electrochemical cells while preventing and controlling safety-critical states of the electrochemical cells, such as lithium ion-based cells and/or lithium ion polymer cells, having an outer surrounding wall, a base and a cover which can be closed, which surrounding wall, base and cover define a chamber between them. An intermediate chamber is filled with a fire-retardant material which is composed of only inert, non-conductive and non-combustible and absorbent hollow glass granules as bulk material, and a basket which is permeable to the fire-retardant material is arranged in the chamber for receiving an electrochemical cell.

A method of preventing and handling indoor air pollution is disclosed and includes: providing a portable gas detection device to monitor the air quality in the indoor environment; disposing 1˜75 gas exchangers within the indoor space to inhale outdoor gas, purify and filter the inhaled gas, and introduce the inhaled gas into the indoor space; and remotely controlling the gas exchangers to enable filtration, purification and gas exchange procedure by the portable gas detection device when the portable gas detection device detects an air pollutant in the indoor space, to reduce the air pollutant in the indoor space under a safe detection value within 1 minute, and form a breathable gas, wherein the air pollutant in the gas in the indoor space is exchanged and exported out to outdoor environment, the gas exchangers have an exported airflow rate of 200˜1600 CADR, and the indoor space has a volume of 16.5˜247.5 m³.

The present invention provides a preparation method of 1-methyl-4-(2-methyl-2H-tetrazole-5-yl)1H-pyrazole-5-sulfamide. The preparation method comprises that trimethyl orthoformate and malononitrile are adopted as starting raw materials, a three-step reaction is performed to obtain 1-methyl-5-amino-4-(tetrazole-5-yl)pyrazole, the 1-methyl-5-amino-4-(tetrazole-5-yl)pyrazole reacts with dimethylsulfate in the presence of an acid-binding agent to obtain 2-methyl-5-(1-methyl-5-amino-1H-pyrazole-4-yl)-2H-tetrazole, the 2-methyl-5-(1-methyl-5-amino-1H-pyrazole-4-yl)-2H-tetrazole is subjected to a sodium nitrite diazo-reaction under an acid condition, the obtained material reacts with a sodium sulfite-copper chloride-acetic acid mixture, and finally hydrolysis with ammonia is performed to obtain the target product. The present invention further provides a preparation method of azimsulfuron prepared from the 1-methyl-4-(2-methyl-2H-tetrazole-5-yl)1H-pyrazole-5-sulfamide. The preparation method of the present invention has characteristics of short reaction route, environmental protection raw materials, and high yield.

An actuator includes: a rotor assembly including an output shaft having a male screw portion and having a pin attached thereto, and a sleeve having a female screw portion and threadedly engaged with the male screw portion of the output shaft so as to convert a rotary motion of the sleeve into a linear motion of the output shaft; a stator assembly disposed around the rotor assembly; a housing attached to the stator assembly; a coil spring; and a spring holder having slits to guide the pin into an axial direction. In the actuator, the coil spring and the spring holder constitute a fail-safe mechanism and are contained inside the housing, and the coil spring is arranged at such a location that the output shaft is caused to move in a direction to achieve a fail-safe operation. Thus, the actuator incorporates a fail-safe mechanism as an integral unit.