38results about How to "Slow reduction" patented technology

An expandable shoulder trial for a reverse shoulder system is described. The trial includes a rotatably adjustable insert housed within a humeral cup. The insert has a proximal end and a distal end, the proximal end having a concave recess therein adapted to receive a glenosphere prosthesis. The distal end of the insert includes a shaft, the shaft having a helical groove disposed on at least a portion thereof. A distal end of the humeral cup is inserted in a humeral stem. The humeral cup has a proximal end including a recess therein, the recess defined by a circular wall. A guide pin protrudes from the circular wall and is adapted to engage the helical groove of the shaft of the insert. The proximal end of the insert may rotate along an axis toward the proximal end of the humeral cup and along the same axis away from the proximal end of the humeral cup.

A safety injection tank, used for quickly injecting emergency core cooling water (ECCW) to a reactor vessel in the case of a cold leg large break accident (CLLBA) in a pressurized water reactor (PWR), is disclosed. The safety injection tank has a gravity-driven fluidic device configured to efficiently change the ECCW injection mode from a high flow injection mode to a low flow injection mode. The gravity-driven fluidic device includes a spring placed in the upper end of the vertical pipe, and a vertically movable water tub placed on the spring so as to be movable in a vertical direction. When ECCW contained in the pressure vessel is discharged and the water level is reduced lower than the height of the tub, the tub is moved downwards such that the lower surface thereof comes into contact with the vertical pipe and closes the high flow inlet port.

The present invention relates to a vacuum wall crawler having at least one vacuum track unit comprising a track frame, two pulleys provided in opposite ends of the track frame, and defining a wheelbase, an endless track arranged to circulate on the two pulleys, and comprising a flexible band, said flexible band comprising a plurality of apertures, and having a thickness, a vacuum distribution box provided in said track frame wherein the vacuum distribution box is in communication with a portion of the apertures to distribute a vacuum to the portion of apertures as the endless track circulates, where the thickness of the flexible band is 5-20% of the wheel base.

The invention concerns the adjustment of an oscillation frequency of an oscillator, in particular the digital coarse adjustment of a PLL oscillator by means of a circuit arrangement comprising at least one pair of capacitors (C, C′), of which first terminals are connected with the oscillator, and second terminals can selectively be connected by means of a switching arrangement with a first reference potential (vss), in order to incorporate the capacitor pair (C, C′) into an oscillating circuit of the oscillator, wherein the circuit arrangement comprises: first FETs (T1, T1′) for the respective connection of the second terminals with the first reference potential (vss), a second FET (T2) for the connection of the second terminals with each other, and third FETs (T3, T3′) for the respective connection of the second terminals with a second reference potential (vdd), which differs from the first reference potential (vss).

The invention, in part, relates to the use of optogenetic methods to increase dendritic spine density on DG memory engram cells in treatment methods for memory-impairment-associated diseases and conditions.

The invention provides a stripy cigarette air cushion conveying device comprising N air cushion channels arranged vertically in a side-by-side manner, air-tight gates, sliding channels and a horizontal conveyor arranged below the air cushion channel, wherein the cross section of the air cushion channel is a stripy-cigarette-shaped plane; the air-tight gate is hinged at the lower end of the air cushion channel; the upper end of the sliding channel is arranged at the lower end of the air cushion channel; and the lower end of the sliding channel is arranged corresponding to the horizontal conveyer, and N is a natural number not less than 2. In the device, the aerodynamic fluid mechanics is smartly utilized to form air cushion protection on the stripy cigarettes, so that the falling stripy cigarettes is stable and ordered, the stripy cigarettes can not damage the stripy cigarette package due to friction with the inner wall of the friction in the falling process, the falling speed of the stripy cigarettes is slow, and the stripy cigarettes can be protected from colliding the stripy cigarettes at the lower part due to falling, so that the damage on outer package of the stripy cigarettes is effectively avoided. The stripy cigarette air cushion conveying device has the advantages that the structure is simple, the design is scientific, the noise is low and the falling of stripy cigarettes is stable.

A personal, lightweight, high altitude rappel escape safety device is worn by an individual as a backpack and provides a safe means of lowering the individual from an elevated structure. The device comprises a structural body containing a mechanical device for slowly releasing a high strength cable. One end of the cable is secured to the structure prior to the user descending from the structure. The cable is released from a spool located inside the body and makes a circuitous path though a frictional structure. The structure contains baffles through which the cable extends. The friction caused by the pattern of release of the cable generates sufficient drag to safely lower a person from any altitude in a structure to the ground. The rate of descent may be adjusted via a braking mechanism.

The invention discloses a high-entropy oxide negative electrode energy storage material containing bismuth, tin and antimony as well as a preparation method and application of the high-entropy oxide negative electrode energy storage material. The material is a multi-element high-entropy oxide material with five or more elements, wherein the multi-element high-entropy oxide material is composed of one or more of bismuth, tin and antimony and nickel, cobalt, manganese, copper, chromium, iron, indium, germanium, magnesium, aluminum, zinc, molybdenum, tungsten, vanadium or titanium. Preparing a uniform composite precursor from the element metal salts through one of physical ball milling, freeze drying, solvothermal, sol-gel or coprecipitation methods; and placing the obtained precursor in an annealing furnace, and annealing in the air at 300-700 DEG C for 0.5-48 hours to obtain the product. Due to the entropy stabilization effect and the phase stabilization effect, as the negative electrode material of the potassium, sodium and lithium ion battery, the internal stress generated by the volume change of metal oxide negative electrode particles in the charging and discharging process is relieved, the expansion of cracks in the particles is inhibited, the pulverization and component segregation of the negative electrode particles are avoided, the integrity of the electrode is kept, the structure is stable, and the cycle performance is good.

The invention discloses an explosionproof internal-combustion forklift truck. The forklift truck comprises an operation and brake system, a dynamical system, a transmission system, an electrical system, an air intake and exhaust system, a heat exchange system and a lifting system, wherein the lifting system is fixedly connected with a truck frame of the explosionproof internal-combustion forklift truck to be used for lifting heavy cargoes; the lifting system comprises forks, a bracket and a hydraulic device; the hydraulic device comprises two stages of hydraulic cylinder assemblies arranged in the front-rear direction; each stage of hydraulic cylinder assemblies comprises a left hydraulic cylinder set and a right hydraulic cylinder set, which are respectively arranged on two sides of the bracket; a flow splitting and baffling structure is arranged at the bottom of an oil cylinder of one of the two hydraulic cylinder sets, and comprises a movable part and a fixed part, which cooperate with each other; the movable part is provided with oil ports; the fixed part is provided with flow baffling walls; the movable part is positioned at the bottom of the movement stroke of a piston rod in the oil cylinder; the piston rod can push the movable part during the movement stroke, so that the flow baffling walls can shield the oil ports. The explosionproof internal-combustion forklift truck disclosed by the invention can effectively solve the technical problems that a lifting system of a conventional internal-combustion forklift truck is liable to shake during working, and the like.

The present invention relates to porphyrins of formula (I): wherein R¹ to R⁶, R^1′ to R^6′, X, X′ Y and Y′ are as described in claim 1. The invention also relates to complexes of said porphyrins with transition metals, in particular iron, preferably as Fe(III) or Fe(0) complex, and salts thereof, use thereof as catalysts for the selective electrochemical reduction of CO₂ into CO, electrochemical cells comprising said complexes, and a method for selectively reducing electrochemically CO₂ into CO using said complexes.

The invention provides a high-rise escape self-rescue lifter which comprises a shell, a rope collecting wheel, an axle, a retracting rope, a hook, a rocker arm driving rod, a driving gear, a handle and a safety belt. The-rise escape self-rescue is characterized in that the shell consists of two concave shells which are symmetrically arranged; an axle through hole is formed in the rope collecting wheel; the axle penetrates through the axle through hole, and two ends of the axle are positioned on two sides of the rope collecting wheel; fixing holes are correspondingly formed in the two concave shells; two ends of the axle penetrate through the fixing holes; a disc spring is arranged on the axle on two sides of the rope collecting wheel; fastening nuts arranged at two ends of the axle are screwed; and the disc spring is pressed between the rope collecting wheel and the concave shells. The high-rise escape self-rescue lifter has the advantages that the design is scientific, the operation is convenient and initial drop speed is slow, the escape personnel is easily held, the speed is manually controlled, the retracting rope is not worn by the buildings, and the safety belt is safe and reliable.

The present invention relates to the medical apparatus and instruments used in the department of cardiology, especially the artificial respiration mask used in the department of cardiology. The tracheal ball is composed of a middle interval in the mask. Align the oral and nasal pouches with the patient's oral and nasal cavities, respectively. Air is blown in through the exhalation mouth, and the air pressure will open the backstop elastic flap, and the air enters the patient's body through the oral cavity, and a part of the gas passes through the patient's trachea and enters the nasal cavity through the nasal cavity. The air outlet tube ball moves upwards and crosses the air outlet position under the action of air pressure, and the gas is discharged from the air outlet. The buffer air outlet is small, and during the descent of the air outlet tube, the upper negative pressure makes the descent slower. Blowing air into the patient's mouth rhythmically makes the air out of the nasal cavity rhythmic. The beneficial effect is that the simple structure enables the doctor to be isolated from the patient's trachea and prevents the overflow of infectious germs in the patient's mouth or trachea.

The invention discloses a speed bump for highways. The speed bump for the highways comprises a base, a speed reduction seat and a plurality of airbags; the plurality of airbags are in communication with each other and horizontally arranged to form an airbag layer; the airbag layer is arranged between the base and the speed reduction seat; gas guide hoses are respectively arranged on the two sidesof the airbag layer; a surface facing a vehicle and a surface facing away from the vehicle are arranged on the speed reduction seat; the surface facing the vehicle and the surface facing away from thevehicle are obliquely arranged; a plurality of oblique convex ribs are arranged on the surface facing the vehicle; placing grooves are formed in the oblique convex ribs; and reflective films are bonded in the placing grooves. According to the speed bump for the highways, by bonding the reflective films in the grooves, the reflective films are prevented from being in direct contact with wheels tobe worn so that the reflective films are uneasy to wear and consume; in addition, the peripheral edges of the reflective films are uneasy to upturn so that the service lives of the reflective films are prolonged.

The invention relates to a double-hopper charging device with a double-side sealed hoisting sleeve and a working method thereof. A charging platform is provided with two sets of charting units; in each charging unit, a discharging pipe and a hoisting sleeve are arranged at the bottom of an upper hopper; upper sealing mechanisms are arranged between the top of the discharging pipe and the top of the hoisting sleeve and arranged between the top of the hoisting sleeve and the upper hopper; lower sealing mechanisms are arranged between the bottom of the discharging pipe and the bottom of the hoisting sleeve and between the bottom of the hoisting sleeve and a lower hopper; upper and lower edges of the hoisting sleeve, a sealing body of a charging bell and a bell body are sealed through sealingsurfaces; a water sealing cover is arranged at the bottom of the lower hopper; the upper hopper is internally provided with a material level meter to be in interlocked control with an executing mechanism of the hoisting sleeve. According to the double-hopper charging device, charging and material distribution requirements of continuous and less dispersion type feeding within relatively long time can be met, and online standby application and rapid exchange of the charging bell are realized; the single charging unit has pre-storing and sealing functions, the discharging amount is easy to adjustand the sealing performance is good; the equipment cost and the operation cost are reduced.

The invention belongs to the technical field of molds and discloses a guide post for an EPS (Expandable Polystyrene) plastic foam mold. The guide post comprises a base, wherein a guide sleeve is in threaded connection with the base; an end cover is arranged at the top end of the guide sleeve; a guide hole is formed in the end cover; a guide post A is arranged in the guide hole; a sliding sealing washer is arranged between the guide hole and the guide post A; a guide post B is connected to the lower end of the guide post A; a fixing plate is connected to the top end of the guide post A; a rubber blanket is arranged on the lower surface of the end cover; an elastic element is arranged between the fixing plate and the end cover; a mounting groove is formed in the lower surface of the guide post B; baffle blocks are arranged at two sides of the inner wall of the mounting groove; an iron post is arranged between the baffle blocks; a circular truncated cone is fixed on the base; a groove matched with the iron post is formed in the upper surface of the circular truncated cone; a plurality of blind holes are formed in the inner wall of the guide sleeve; a first magnet block is arranged in each blind hole. The problems that the guide post is deformed due to excessively-high descending speed thereof, and a component connected with the guide post is offset in position are solved.

The invention provides a handheld device centralized management and control system and method, and belongs to the technical field of handheld device management. The method is mainly used for achievingcentralized management on handheld devices, particularly comprises the steps of generating a device ID list, updating IDs of the devices, sending a communication relation table of mutual communication among the devices, exporting communication history information and logs which are saved in the devices and the like and has the functions of history information query, log query and the like. Simpleserial port communication is adopted between the management and control system and the handheld devices; the management and control system sends management data to the handheld devices through serialports; and a communication data frame format made by an upper application program is adopted between the management and control system and the handheld devices, and a CRC verification function is achieved except a message head verification function.