1207 results about "Liquid transfer" patented technology

Provided is a liquid transfer device which controls electrically liquid position. The surface of the liquid transfer device is provided with unevenness in order to solve a problem of having a large number of electrodes for controlling voltage. The number of electrodes for controlling voltage can be halved by utilization of restoring force of liquid to a spherical shape by surface tension, in addition to electrical force.

A system for managing bulk liquids for an automated clinical analyzer. The system comprises (a) at least one local reservoir for storing a bulk liquid for impending use, (b) at least one container for holding a bulk liquid before the liquid is transferred to a local reservoir, and (c) a controller for monitoring the level of a bulk liquid in a local reservoir. The local reservoir for storing a bulk liquid for impending use can be a trough. The use of troughs for storing a reagent, a diluent, or some other treating agent for impending use enables an aspirating / dispensing device having a plurality of pipettes to aspirate and dispense the reagent, diluent, or other treating agent at a high rate of throughput. The controller can monitor the level of a liquid in (a) a local reservoir for storing a bulk liquid for imminent use and the level of liquid in a (b) container for holding a bulk liquid before the liquid is transferred to a local reservoir. In the laboratory automation system described herein, the container for holding a bulk liquid before the liquid is transferred to a local reservoir can be a bottle. Other desirable features in the system include, but are not limited to, pump(s), valves, liquid level sensors.

Liquid transfer device to be used to transfer a liquid into or from a dispensing container, particularly a medical dispensing container like a vial for diagnostic agents and kit comprising a vial, a syringe and a device of the aforementioned type. The transfer device comprises a valve which substantially limits the gaseous exchange between the inside of a vial and the external ambient, when the device is connected to the vial in steady state conditions.

The invention is directed to a device and a method for carrying out experiments of chemical, biochemical, biological and physical analysis, reaction and assay employing a reaction unit, in a preferred embodiment comprising: a capillarity reaction chamber, non-capillarity zone and bottom structure, which can use capillary action to quantitatively take up by itself and hold liquid in the reaction chamber. A multi-unit plate, which contains a number of reaction units on a plate frame, can be used for parallel experiments in conjunction with reservoir plate, waster pad, and liquid transfer guider.

An atomizer and an electronic cigarette are provided. The atomizer includes: an atomizer cartridge, a liquid storage chamber, a liquid separation plate, an electric heating element, a cigarette liquid locking member, a first glass fiber cloth, and an atomizing electrode assembly. The electric heating element twists along the transverse direction of the atomizer, and is laid on the first glass fiber cloth, and the electric heating element laid on the first glass fiber cloth has a snakelike sheet structure. The cigarette liquid can be uniformly transferred to the electric heating element, and the volume of the aerosol is uniform. Furthermore, the quantity of the cigarette liquid transferred to the electric heating element is ensured to be uniform. In addition, the length of the electric heating element and the contact area of the electric heating element in contact with the first glass fiber cloth are effectively increased.

Devices and methods for identification, authentication, and quantification of one or more covert markers in a material are disclosed. A device includes a microfluidic cell, a liquid transfer system, and a detector system and is an integrated unit providing an automated, in-line process for identifying one or more materials containing at least one latent marker that may transform into an active form. The microfluidic cell is for receiving a material containing a latent marker and has at least one inlet for receiving one or more liquids and one or more outlets through which liquids exit. The liquid transfer system is operably connected to the microfluidic cell and delivers liquids to the microfluidic cell. The detector system is proximate to the outlets for detecting the active form of the marker. With the device, a number of independent processing and analytic steps are combined onto a single, portable unit.

A moisture detection apparatus for signaling to a caregiver that a diaper or other article of clothing worn by an infant or adult being cared for by the caregiver is wet and needs to be changed. The apparatus includes a liquid transfer component having a plurality of capillaries for transferring liquid from the wet diaper to a remote location and a signaling device which emits either an audio signal or a visual signal, or both when an infant or adult patient is in need of attention due to a wet diaper or other article of clothing.

A liquid submersion cooling system that is suitable for cooling a number of electronic devices in parallel using a plurality of cases connected to a rack system. The system cools heat-generating components in server computers and other devices that use electronic, heat-generating components and are connected in parallel systems. The system includes a housing having an interior space, a dielectric cooling liquid in the interior space, a heat-generating electronic component disposed within the space and submerged in the dielectric cooling liquid. The rack system contains a manifold system to engage and allow liquid transfer for multiple cases and IO connectors to engage electrically with multiple cases / electronic devices. The rack system can be connected to a pump system for pumping the liquid into and out of the rack, to and from external heat exchangers, heat pumps, or other thermal dissipation / recovery devices.

Methods here disclosed provide for selectively coating the top surfaces or ridges of a 3-D substrate while avoiding liquid coating material wicking into micro cavities on 3-D substrates. The substrate includes holes formed in a three-dimensional substrate by forming a sacrificial layer on a template. The template includes a template substrate with posts and trenches between the posts. The steps include subsequently depositing a semiconductor layer and selectively etching the sacrificial layer. Then, the steps include releasing the semiconductor layer from the template and coating the 3-D substrate using a liquid transfer coating step for applying a liquid coating material to a surface of the 3-D substrate. The method may further include coating the 3-D substrate by selectively coating the top ridges or surfaces of the substrate. Additional features may include filling the micro cavities of the substrate with a filling material, removing the filling material to expose only the substrate surfaces to be coated, coating the substrate with a layer of liquid coating material, and removing said filling material from the micro cavities of the substrate.

A method and an array filling system for loading a plurality of disparate sample containers, the sample containers comprising an integral structure. Each receptacle is characterized by a hydrophilic surface, and the receptacles are separated by a hydrophobic surface. The system has a liquid transfer device capable of holding liquid and adapted for motion to cause sequential communication of liquid held in the liquid transfer device with successive receptacles of the array by dragging the liquid across the hydrophobic surface.

An absorbent article comprises an absorbent body, a liquid-permeable covering layer arranged over a first surface on the absorbent body, and a liquid-permeable liquid-transfer layer arranged between the absorbent body and the liquid-permeable covering layer. The liquid-permeable covering layer comprises a nonwoven material with a pore volume distribution curve with a maximum at a pore radius greater than or equal to 50 mum and with a wetting angle of at least 120°. The liquid-transfer layer comprises a fibrous layer with a pore volume distribution curve with a maximum at a pore radius of from 105 to 325 mum.

The invention is a method that allows contamination-free transfer of a liquid from one container to another and devices including embodiments of a transfer apparatus and adaptors that are used to carry out the method. By contamination-free transfer of liquid it is meant that during the transfer process there is no leakage of the liquid or air contaminated by the liquid or vapors of the liquid to the surroundings and also that no contaminants from the surroundings come into contact with the liquid. The main advantages of the method, in addition to its simplicity, is that at no stage of the transfer procedure is there leakage of the liquid or air contaminated by the liquid or vapors of the liquid to the surroundings and also that no contaminants from the surroundings come into contact with the liquid. The present invention is particularly directed towards providing an apparatus that is adapted to effect contamination-free transfer of a hazardous drug to and from any container equipped with a standard connector port.

Convenience kits designed to provide for closed, but selectable liquid transfer from a vial to a variety of IV containers and medical syringes. In particular, a kit for fully enclosing a vial for safety in hazardous drug transfer is disclosed. Generally, the kits contain unitized parts wherever reasonable to limit makes and breaks. Further, pathway determining kits provide selectable pathways for purging connections wish flushing solution where makes and breaks are made between various fluid pathway involved parts such that, when disconnections are made, flush solution is resident at the exposed interface. Also disclosed is a 3-way valve as part of a closed, switchable pathway controlling subsystem by which pathways are selected for reconstituting dry medicine in a vial, displacing a measured dose of liquid from a vial, exchanging gas into the vial for displaced liquid, delivering the measured dose to an IV container.

The present invention relates to noninvasive transdermal systems comprised of a noninvasive transdermal patch and a reflectometer. The noninvasive transdermal patches are comprised of a wet chemistry component and a dry chemistry component. The wet chemistry component is a liquid transfer medium in the form of a gel layer for the extraction and liquid bridge transfer of the analyte of interest from the biological fluid within or beneath the skin to the dry chemistry component. The dry chemistry component is a reagent system for interacting with the analyte of interest (glucose) to generate a color change. The reflectometers include a modulated light source for emitting light to illuminate a target surface which possesses a certain color and shade of color for detection by an optical detector. The output signal is processed for determining a corresponding quantity or quality measurement.

The invention is an automated multiple-purpose, integrated laboratory system comprising interchangeable modular elements for the construction and measurement of biological assays. The functions of the modular elements may include multiwell platform handling, chemical reagent or cell management, volumetric transfer of liquids for assay construction or for recovery of reaction products for analysis, incubation under controlled environmental conditions, measurement of spectrometric signals originating from the assays, processing and analysis of the resulting spectrometric data, and other functions. The modular elements are arranged around a number of robotic elements that deliver plates to different modular elements, transfer plates to groups of modules served by a different robotic element, or other actions necessary in plate handling. Liquid transfer to and from multiwell platforms, necessary for assay construction or for the initiation of physiological events in cells, is partitioned among different modules specialized for transferring nanoliter or smaller volume quantities of chemical concentrates, or microliter quantities of assay reagents, cells, media and other assay constituents. Applications of this invention include the quantitation and analysis of the expression of multiple genes in cells, measurement of multi-gene expression kinetics, analysis of activation or suppression of multiple signal transduction pathways, screening chemical compounds for modulatory effects on multi-gene expression or on signal transduction pathways or on other biochemical networks of cells, or other analytical biological or biochemical assays.

A transfer layer of liquid fluids and an absorbent article incorporating the transfer layer, like a diaper, a sanitary napkin or a similar product, which has a permeable cover below which there is disposed a nonwoven transfer layer for liquid fluids followed beneath by an absorbent core which retains the fluids. In the transfer layer there is provided a top layer of predominating hydrophobic properties and a bottom layer of predominating hydrophilic properties. The transfer layer has an embossed surface configuration, with channels formed by compressed nonwoven streaks forming transversal peaks and valleys extending in longitudinal direction along the transfer layer. The lower thickness of the transfer layer resulting from the compressed stretches which form valleys, provide the channels with a predominating hydrophilicity, which facilitates the quick liquid transfer towards the absorbent core, while the higher thickness of the transfer layer in the peaks provide it with a predominating hydrophobia, which impedes the liquid to return from the absorbent core to the permeable cover, thus reducing the index of remnant humidity in the zone of contact with the user's skin, even if the absorbent core is submitted to pressure.

A liquid transfer device that includes: a plurality of reservers that each store therein a liquid; a plurality of elastic tubes that are linked to the reservers and retained by a tube guide; a rotation axis that is retained to be able to rotate; and a tube depressing member whose depressing section is fixed to the rotation axis for depressing the tubes with a helical-structured convex portion provided thereto. In the liquid transfer device, when the rotation axis rotates, the liquid starts to flow by the depressing section sequentially depressing the tubes in a direction from the reservers toward a flow-out side of the liquid.

Disclosed is an apparatus for high-throughput non-contact liquid transfer. The high-throughput non-contact liquid transfer apparatus may be implemented for high-throughput biological, chemical and biochemical, synthesis and / or screening. In one variation, the apparatus comprise of an acoustic emitter, one or more X / Y linear stage with associated handling device, one or more storage queue, and an image detection system. The apparatus may be controlled by a centralized system controller with associated electronic and / or software. The apparatus may further be integrated within a frame with environment and safety enclosure. The system controller may control positioning of source vessel and target device relative to an acoustic emitter device. The system controller may also track the location of all the source well plates and target well plates, thus providing for user-defined association of any well on any source well plate with any well on any target well plate for liquid transfer.

A tubular separation unit insertable into a caisson or tube for separating liquid from an upward flowing liquid / gas multi-phase stream, and including a centrifugal flow-induced liquid separator having a multi-phase gas / liquid inlet, a liquid outlet, and a gas stream outlet; a liquid transfer conduit connected to the liquid outlet of the flow separator; and a pump for pumping liquid, disposed below the separator and including a pump liquid inlet connected to the liquid transfer conduit and through which liquid separated in the separator is received, and a pumped liquid outlet through which separated liquid is, in use, caused to flow selectively.

The invention is a needle valve and connectors for use in liquid transfer apparatuses. The needle valve of the invention is not the conventional type of needle valve known in the art that comprises a threaded valve stem, which allows very accurate control of the flow through the valve, and that uses elastic materials, such as rubber, as a sealing component. The needle valve of the invention comprises two components: the first component is a hollow needle having a smooth exterior surface and a port at the side of the cylindrical shaft, the second component is a seat made of rigid material e.g. plastic with low friction properties.

An automatic dishwasher, comprises a wash chamber, a rotating spray arm having an outer periphery or rotation and having at least one outlet for introducing a stream of liquid into the wash chamber, a disperser located within the wash chamber and exteriorly of the outer periphery of the rotating spray arm where during at least a portion of one revolution of the rotating spray arm the disperser is fluidly connected such that the stream of liquid is transferred to the disperser, and a liquid volume controller to control the volume of liquid transferred from the rotating spray arm to the disperser. Wherein the disperser provides an additional source of water spray to utensils in the wash chamber and the liquid volume controller controls the amount of such additional spray.

A liquid transfer device is provided for biochemical assay, including a pipette forming an interior space extending in an axial direction and having first and second ends. The first end forms an opening and the second end forms an enclosed variable volume, whereby variation of the volume causes a change of pressure to selectively induce a suction force and a releasing force in the pipette. An analysis container includes a plurality of receptacles retained by a slab. A film covers the slab to seal the container. A movement control device includes a manipulator that releasably holds the pipette and a tray that forms a cavity for receiving and retaining the container. The pipette and the tray are movable with respect to each other in order to fill / draw test agent into / out of the receptacles.

A portable water filtration device includes a liquid-tight filter container and a filtration device mounted in the liquid-tight container. The filtration device includes an inlet opening extending through one of the walls and a first filtration device in liquid transfer connection with the inlet opening operative to receive and filter liquid flowing therethrough. A second filtration device is operative to receive liquid from the first filtration device and further filter the liquid flowing therethrough. The first and second filtration devices are selected from the group including ultraviolet, activated carbon and reverse osmosis filters, and an outlet opening extending through one of the walls then receives the treated water and releases the water from the filtration device. Finally, the liquid-tight filter container is operative to prevent liquid from entering the interior volume thereof thereby preventing contamination of the filtration device from accidental incursion of contaminants.

A mixed liquid manufacturing apparatus comprises: an information input unit, in which information of an object, to which a mixed liquid is offered, is input; a material storage system that stores a plurality of materials for a mixed liquid; a product information system that selects kinds and quantities of the stored materials on the basis of the input information of the object, to which a mixed liquid is offered; a liquid transfer unit, by which the selected materials are taken out from the material storage system; a mixing unit, in which the materials supplied from the liquid transfer unit are mixed; an injection unit, by which the mixed liquid is injected into a mixed liquid container; an input unit, by which matters being declared on a label of the mixed liquid container are input; and a label formation unit, in which the input matters are printed on the label and the label is stuck on the mixed liquid container, and wherein the label formation unit begins printing before the injection unit completes injection of the mixed liquid into the container.

A liquid-gap electrostatic hydraulic micro actuator is provided that produces higher displacement (in and out of plane) and larger force than typical electrostatic actuators by utilizing a non-conducting liquid as its dielectric material. This new class of actuators utilizes the liquid dielectric for hydraulic amplification and force transfer. The liquid electrostatic actuator consists of two chambers each forming a parallel-plate capacitor, filled with a non-conducting incompressible liquid. One chamber is compressed by pulling down a flexible membrane using electrostatic actuation, thus forcing the liquid under it to transfer into the other chamber. Such movement causes the other chamber's membrane to expand out of plane.

A disclosed image forming apparatus includes a line-type liquid discharging head including nozzles configured to jet liquid droplets. The nozzles are aligned in a sheet width direction. The line-type liquid discharging head includes plural nozzle rows each including an alignment of a plurality of the nozzles configured to discharge liquid droplets of the same color. A distance L1 between the nozzle rows is L1=T11×V1, where T1 is a liquid transfer amount impregnating time of a standard sheet and V1 is a sheet conveying speed.

A hydroponic produce display apparatus for in-store and market display of plants is provided. The hydroponic produce display apparatus comprises a basin having an open top with the basin holding a volume of liquid. A cover is positioned on the open top of the basin with the cover being permeable to liquid. A display backing is provided having a first end, a second end opposite the first end, a first side, and a second side opposite the first side. The first end of the display backing is mounted over the open top of the basin with the display backing extending vertically from the basin. Mounting mechanisms cooperate with the display backing for mounting the plants to the display backing. A liquid introduction mechanism introduces liquid to the plants mounted to the display backing. A liquid transfer mechanism moves liquid from the basin to the liquid introduction means. Excess liquid from the liquid introduction means not absorbed by the plants is moved into the basin for transfer back to the liquid introduction means.