1047results about How to "Flow fast" patented technology

Method and apparatus for obtaining a sample of blood from a patient for subsequent diagnostic tests, e.g., glucose monitoring. In one aspect of the invention, the method comprises the steps of:(a) placing a blood collection device over a region on the surface of the skin from which said sample is to be obtained,(b) forming a seal between said blood collection device and said surface of the skin,(c) creating a vacuum sufficient to result in said surface of the skin becoming stretched and engorged with blood,(d) triggering a lancing assembly and causing a lancet to penetrate said skin,(e) retracting said lancet,(f) withdrawing blood toward and onto a fluid collector, and(g) releasing the vacuum.In another aspect of the invention, an apparatus for carrying out the method described previously is provided. The apparatus comprises:(a) a housing having a sealable chamber located therein and a sealable opening in fluid communication with said sealable chamber,(b) a power source,(c) a vacuum pump operably connected to said power source, said vacuum pump in communication with said sealable chamber,(d) a lancing assembly positioned within said housing, said lancing assembly capable of moving a lancet towards said sealable opening, and(e) a fluid collector positioned in said sealable chamber, said fluid collector in fluid communication with said sealable opening.

The invention is related to an electronic cigarette which is equipped with a universal serial bus (USB) connector. The electronic cigarette includes a cigarette body and a connecting device. The connecting device is retractably disposed in the cigarette body so as to be hidden therein, and the connecting device includes a connector and a conductor of which a length is extendable. When not in use, the conductor is foldably retracted to be hidden within the cigarette body together with the connector, while the connecting device is in use, the connecting device is pulled away and the conductor extends to a predetermined length to electrically connect the electronic cigarette to an external electronic device or power. Because the USB connector and the conductor are disposed in the electronic cigarette, the electronic cigarette is capable of being used conveniently and assembled quickly.

The flow conditioner for a gas transport pipe comprises at least one perforated plate disposed essentially perpendicularly to the axis XX' of the pipe and comprising a central hole and sets of additional holes that are regularly distributed over at least three concentric rings centered on the axis of the pipe so as to define a perforated plate that is axially symmetrical. Within any one ring all of the circular holes are of the same diameter d1, d2, d3. On going away from the central hole and on passing from any one ring to an adjacent concentric ring, the diameter of the holes changes alternately in a reduction direction and in an increase direction. Each ring has a number of holes that is equal to or greater than six. The perforated plate is advantageously associated with a porous plate situated upstream from the perforated plate and parallel thereto.

In an exhaust gas pipe, a first fluid flows in a flow direction in the pipe, and a second fluid is injected inside the pipe by a nozzle, from an injection inlet arranged in the pipe wall, according to an injection direction. A mixing device fastened inside the pipe upstream from the injection inlet creates turbulence that helps the mixing of the fluids. The mixing device has a first portion located on the injection inlet side of the pipe and a second portion located opposite the injection inlet side of the pipe, the portions being designed so that the fluid velocity is higher downstream from the mixing device second portion than downstream from the mixing device first portion. An aqueous solution of urea can be injected inside an exhaust pipe of a diesel engine.

A beverage system for selectively delivering, in a same coffee extraction device, short coffee liquid extracts and long coffee liquid extracts comprising: cartridges containing ground coffee; a receiving device for receiving one cartridge at a time and pumping means or injecting water under pressure in the cartridge; means for opening the cartridge wherein these means comprises retaining means to retain the liquid under pressure in the cartridge and engaging means which engage the retaining means to open the cartridge and deliver the coffee liquid extract; wherein the system comprises at least a first cartridge adapted to deliver a short coffee liquid extract, wherein the system comprises at least a second cartridge which has substantially the same external configuration and shape as the first cartridge so as to be capable of being received in the same receiving device as the first cartridge and which is adapted to deliver a longer coffee liquid extract upon allowing a larger amount of water to flow there trough, wherein the second cartridge for the longer coffee liquid extract is configured so that water flows through it at a higher rate than in the first cartridge during extraction.

The invention provides a medical device having a thermister for temperature measurement, irrigation / aspiration ports for fluid exchange and application of therapeutic modalities, a pressure manometer for pressure measurement, and an external system for control of temperature, pressure, and flow rate. When applied to the eye and orbit, this device can be used in hypothermia or hyperthermia applications, the control of intraocular pressure (IOP), and the application of treatment modalities. Methods of using the device in treating patients suffering from central retinal artery occlusion, anterior optic nerve disease, pathology of the choroid and retina including the macula, inflammation of the eye including the vitreous and anterior segment, glaucoma, inflammation and / or infections of the anterior and / or posterior segment of the eye, treatment before / during / after surgery of the eye, and the application of treatment modalities through a semi-permeable membrane are described.

The present invention is directed to a semiconductor processing apparatus and a method for clamping a semiconductor substrate and controlling a heat transfer associated therewith. According to one aspect of the present invention, a multi-polar electrostatic chuck and associated method is disclosed which provides a controlled and uniform heat transfer coefficient across a surface thereof. The multi-polar electrostatic chuck comprises a semiconductor platform having a plurality of protrusions that define gaps therebetween, wherein a distance or depth of the gaps is uniform and associated with a mean free path of the cooling gas therein. The electrostatic chuck is permits a control of a backside pressure of a cooling gas within the plurality of gaps to thus control a heat transfer coefficient of the cooling gas. The plurality of protrusions further provide a uniform contact surface, wherein a contact conductivity between the plurality of protrusions and the substrate is controllable and significantly uniform across the substrate.

A beverage system for selectively delivering, in a same coffee extraction device, short coffee liquid extracts and long coffee liquid extracts comprising: cartridges containing ground coffee; a receiving device for receiving one cartridge at a time and pumping means or injecting water under pressure in the cartridge; means for opening the cartridge wherein these means comprises retaining means to retain the liquid under pressure in the cartridge and engaging means which engage the retaining means to open the cartridge and deliver the coffee liquid extract; wherein the system comprises at least a first cartridge adapted to deliver a short coffee liquid extract, wherein the system comprises at least a second cartridge which has substantially the same external configuration and shape as the first cartridge so as to be capable of being received in the same receiving device as the first cartridge and which is adapted to deliver a longer coffee liquid extract upon allowing a larger amount of water to flow there trough, wherein the second cartridge for the longer coffee liquid extract is configured so that water flows through it at a higher rate than in the first cartridge during extraction.

A heat dissipation system includes a heat sink, a heat pipe, and a cooling assembly. The heat sink includes a substrate and a number of fins extending therefrom. The heat sink has a receiving portion. The heat pipe includes a shell, a wick, and a working fluid contained in the shell. The heat pipe has an evaporation section and a condensation section. The evaporation section is inserted into the receiving portion of the substrate while the condensation section is equipped with the cooling assembly. A hydrophilic layer is formed on the wick so that the capillarity of the wick is enhanced. The heat dissipation system has two mechanisms by which to dissipate heat from a heat-generating component, i.e., via the heat sink and the heat pipe. Therefore, an efficiency of heat dissipation of the heat dissipation system is improved.

Disclosed is a hookah for electronic cigarette, which comprises a bottle body containing some water, a suction nozzle leading to the water surface and an electronic cigarette receiving chamber provided with an inner opening arranged under the water surface and an outer opening fitting the outer contour of an electronic cigarette. The electronic cigarette receiving chamber comprises an inner chamber for holding the electronic cigarette and an outer access connected to the inner chamber, the upper portion of said inner chamber being connected to the outer access via a through hole, said inner opening being an exit of said outer access and said outer opening being an entrance of said inner chamber. When using the hookah to smoke an electronic cigarette, the smoke will be filtered so that it tastes more pure and better. The present invention has a simple structure; it is easy to use and convenient to carry.

The invention relates to an upcast method for producing a high-purity bright copper rod. The method comprises the following steps of: drying smelting copper raw materials needed by smelting, mixing, adding the mixture into a smelting furnace, and covering firing charcoal with the thickness of between 100 and 150mm on starting molten copper until red copper is entirely molten, wherein molten copper constantly flows toward a heat preservation furnace under the action of fluid force; boiling the high-temperature molten copper and degassing before ingot guiding, adding prepared high-purity graphite carbon powder onto the liquid level of the molten red copper in the heat preservation furnace, and aerating high-purity nitrogen at the position which is 50 to 100mm lower than the liquid level of the heat preservation furnace; covering the firing charcoal after boiling and degassing, covering a furnace cover, performing draw casting operation, drawing a draw casting machine for draw casting bythe upcast method, cooling in a graphite crystallizer by the upcast method to obtain a qualified high-purity oxygen-free copper rod blank, and winding on a drawn cast ingot passive winding machine; and performing multi-pass rolling and fine-drawing on the high-purity oxygen-free high-brightness copper rod blank by an eight-rack rod cold rolling mill, and drawing the blank until the copper rod is obtained by a wire drawing machine, namely obtaining a finished product after the copper rod passes the inspection.

Embodiments of the present invention provide a system and method for rapid calibration of a flow device. A flow device can be provided with a calibration flow curve (e.g., represented by an nth degree polynomial) by the manufacturer or a third party. The calibration curve can be adjusted for a process fluid and the system for which the flow device is actually installed using one or more correction factors. The correction factors can be determined for the flow curve based on a simple empirical test or fluid properties of the process fluid. The corrected flow curve is then saved at the flow device so that it can be used for future flow control.

The invention provides a medical device having a thermister for temperature measurement, irrigation / aspiration ports for fluid exchange and application of therapeutic modalities, a pressure manometer for pressure measurement, and an external system for control of temperature, pressure, and flow rate. When applied to the eye, eyelid and orbit, this device can be used in hypothermia or hyperthermia applications, the control of intraocular pressure (IOP), and the application of treatment modalities. Methods of using the device in treating patients suffering from central retinal artery occlusion, anterior optic nerve disease, pathology of the choroid and retina including the macula, inflammation of the eye including the vitreous and anterior segment, glaucoma, inflammation and / or infections of the anterior and / or posterior segment of the eye, treatment before / during / after surgery of the eye, and the application of treatment modalities including iontophoresis through a semi-permeable membrane are described.

An electric power source system in which a momentary interruption of the electric power supply does not occur when the direction of voltage conversion is switched by a voltage conversion device that is capable of bidirectional voltage conversion. The electric power source system includes a bidirectional switching regulator that selectively switches between the voltage conversion in the step-up direction from a low-voltage system to a high-voltage system and the voltage conversion in the step-down direction from the high-voltage system to the low-voltage system, and a linear regulator, connected in parallel to the bidirectional switching regulator, that converts voltage in the step-down direction. The direction of current that flows via the bidirectional switching regulator switches from the step-up direction to the step-down direction after current flows in the step-down direction via the linear regulator.

There is disclosed a sacrificial corrosion-protective aluminum alloy for heat exchangers which contains Zn more than 4.0 wt % but 15.0 wt % or less, 0.1 to 3.0 wt % of Fe, and 0.2 to 3.0 wt % of Ni, with the balance being made of aluminum and unavoidable impurities. There is also disclosed an aluminum alloy composite material in which the said aluminum alloy is used as the sacrificial material and a heat exchanger using the aluminum alloy composite material. According to the aluminum alloy composite material, it is possible to prevent erosion of heat-exchanger tubes when refrigerant in tube is strongly alkaline and is flowing at a high flow rate.

The invention discloses a high-speed continuous photocuring type 3D printing device and a working method thereof. The 3D printing device comprises a machine case body which is divided into an upper cavity and a lower cavity by a middle partition board, wherein an image forming module is arranged in the lower cavity, a window box and an oxygen supply cooling module are arranged in the upper cavity and are combined to be fixedly mounted on the middle partition board, the oxygen supply cooling module is arranged right below the window box, and the image forming module I is arranged right below the window box; a printing platform is arranged right above the window box and is mounted on a Z-direction worktable; and the window box is connected with a raw material feeding unit. The 3D printing device is integrated with the advantages of a compound oxygen-rich film, oxygen supply cooling and liquid surface auxiliary pressurization of the window box, so that the low-cost and efficient continuous printing of large-sized products with arbitrary shapes is realized, the range of applicable materials is wide, the printed products are high in precision and quality and good in uniformity, and the process is stable and reliable. An industrial-grade solution is provided for the high-speed continuous photocuring type 3D printing.

A circuit for driving an LED load with a controllable converter includes a control circuit configured to turn off the converter in response to a PWM signal having a first level and to turn on the converter in response to the PWM signal having a second level. A load disconnect switch coupled in series with the LED load is also controlled by the PWM signal so that the load disconnect switch is opened when the PWM signal turns off the converter to thereby open the load current path.

The invention provides a rubber node, a power bogie, and a rail vehicle; the rubber node comprises a mandrel, a sheath, and a rubber layer filled between the mandrel and the sheath; a first cavity and a second cavity are symmetrically arranged on two sides of the rubber layer around the mandrel, and connected through a first connecting channel; the first and second cavities are filled with liquid, yet not fully filled; the rubber node is connected between an axle box and a truss of the power bogie; the rail vehicle comprises the rubber node; the first and second cavities are symmetrically arranged on two side of the rubber layer round the mandrel, connected through the first connecting channel, and filled with liquid, so the rigidity of the rubber node can change with liquid flow resistances, thus adapting to rail vehicle vibration frequency.

The degassing system can include a degassing vessel and can utilize a vacuum pump and a fluid pump located downstream of the degassing vessel to control the pressure within the degassing vessel in order to control the concentration of gases in fluid exiting the degassing system. The degassing system can further comprise sensors in communication with the pumps to control the rate of flow and pressure through the degassing system. The degassing system may be placed in a dialysate flow path to remove dissolved gases including carbon dioxide from the dialysate.

A gas filling apparatus in the present invention includes an accumulator, a compressor, a pressure sensor for detecting the pressure of gas delivered from a dispenser to be delivered to a gas tank, a regulating valve for regulating the gas flow rate, and a controller. To prevent a rapid rise in pressure of gas supplied to the gas tank, the controller includes an opening control unit for controlling the opening of the regulating valve when a detected value of the pressure sensor is lower than a pressure corresponding to the gas pressure in the accumulator by a predetermined value or more, and a compression control unit for controlling drive of the compressor so that the compressor compresses sucked gas when a pressure difference of a pressure detected by the pressure sensor from a pressure corresponding to the gas pressure in the accumulator becomes a value smaller than the predetermined value.

A method for delivering a long coffee extract from a capsule containing ground coffee within a flow time of 50 seconds or less by injection of water under pressure within the capsule. The capsule is filled with ground coffee and has a delivery membrane. The capsule is extracted in a coffee extraction device, and pressurized water is injected in the capsule under pressure. The coffee beverage is released through the beverage delivery membrane of the capsule with engaging means engaging in and / or against the membrane. The pressure loss is reduced in the coffee bed by providing in the capsule coffee ground having a controlled percentage of fines (F) depending on the average particle size (D4,3). The flow time can be lowered to 40 seconds or even less while maintaining a coffee extraction yield within a high range of 15 to 30%.

The invention provides a multilayered structure absorbing core used for a disposable absorbing product and a manufacturing method thereof. The absorbing core is formed by pressing each layer; a latticed groove is formed in the surface of the absorbing core; the groove depth of the crossed points of the latticed groove is larger than the groove depth of the non-crossed points. A new synchronous staggered layer compaction process is adopted, namely, when the absorbing core is pressed at a circular truncated cone structure in a punctiform way, the absorbing core is not completely pressed by a linear netty trapezoid compaction mechanism with the height lower than that of the circular truncated cone structure, and the absorbing core is divided into a plurality of raised small spaces; under the condition of keeping the drainage function of a flow guide layer and a liquid storage layer, the shift of a polymer absorbent material in the absorbing core is completely limited, and the intensity of a core body is increased; through adjusting the structure and the manufacturing process of the core body, the liquid absorbing amount of the improved multilayered structure absorbing core is larger, the liquid absorbing speed is rapider, and the intensity is increased.

A heat pipe includes a metallic pipe, a wick structure and a working fluid. The interior of the metallic pipe has a sealing chamber, and is formed into an evaporating section, an adiabatic section and a condensing section along its lengthwise direction. The wick structure comprises a first wick structure and two elongate second wick structures connected to the first wick structure. The first wick structure is adhered to the inner wall of the evaporating section. The two second wick structures are separated from each other and adhered to the inner walls of the evaporating section, the adiabatic section and the condensing section. A gas channel is formed between the two second wick structures, and has a smooth surface. The working fluid is filled in the sealed chamber. By this arrangement, the space for the gas channel can be enlarged, thereby accelerating the flowing speed of the internal gas and enhancing the heat-conducting efficiency of the heat pipe.

The invention relates to the technical field of keyboards, in particular to a self-cleaning keyboard. The keyboard comprises a keyboard body and keys; key holes are arranged in the keyboard body, and the keys are located on the key holes; an airbag pad is arranged on the keyboard body, and a plurality of through holes for the keys to be inserted in the key holes are correspondingly formed in the airbag pad; each key comprises an upper part for a finger to tap and a lower part capable of sliding up and down in each key hole; springs are arranged in the key holes; the airbag pad is located between the upper parts and the keyboard body; air discharging parts capable of discharging air during pressing of the airbag pad and an air feeding part capable of feeding the air during release of the airbag pad are arranged on the airbag pad; the air discharging parts are uniformly arranged in circumferential directions of the keys; a ventilation tube is arranged on a side surface of the airbag pad; an air inlet one-way valve is arranged on the ventilation tube; and a ventilation cover is connected to the ventilation tube. According to the scheme, dust around the keys can be cleaned when the keys are tapped; people can dismount the keys once conveniently; and a hand can be prevented from sweating.

A volumetric metering system for a seeding machine is provided with movable gates disposed downstream from the meter roller but before the product enters a distribution system to selectively stop the flow of product through sections of the metering system. By placing the shut-off gate after the meter but before product enters the distribution system, there will not be a delay in stoppage of product flow while the meter empties of product. Furthermore, by locating the gate before the distribution system, the metered product is not mixed with the air stream or with additional products, causing a need for product redirection into a pressurized tank or separation of multiple products.