Abstract: A method and apparatus of forming compositionally homogeneous particles is provided. The method includes forming a homogenous melt from a plurality of constituent materials under a first pressure sufficient to prevent substantial vaporization of the constituent materials. Droplets are generated from the homogenous melt. The droplets are cooled under a second pressure sufficient to prevent substantial vaporization of the constituent materials at least until the homogeneous particles formed therefrom have stabilized.

Abstract: The push-button dispenser for bottles with carbonated beverages as a head (1) which can be screwed onto a bottle and has a lateral pouring channel (15) and a push-button (16) on its upper side. A suction tube (10) projects downwards, this tube being intended to extend down as far as the base of the bottle (20) to be fitted with the dispenser. This suction tube opens out at the top into a valve device in the head (1), this valve device having a regulating means (5) which can be moved axially in relation to the bottle (20) and is biased in the closing direction by a spring (3). In order for the regulating means to be opened, pressure is applied to the push-button (16) from above, and therefore the pressure in the interior of the suction tube (10) is reduced to ambient pressure. This causes liquid to be expelled from the bottle, by way of the internal pressure prevailing in the bottle, out of the lower mouth opening of the suction tube (10) via the pouring channel (15).

Abstract: The technology described herein generally relates to systems for extracting polynucleotides from multiple samples, particularly from biological samples, and additionally to systems that subsequently amplify and detect the extracted polynucleotides. The technology more particularly relates to microfluidic systems that carry out PCR on multiple samples of nucleotides of interest within microfluidic channels, and detect those nucleotides. The technology still more particularly relates to automated devices for carrying out pipetting operations, particularly on samples in parallel, consistent with sample preparation and delivery of PCR-ready nucleotide extracts to a cartridge wherein PCR is run.

Abstract: The present invention provides a system featuring a dispenser for providing fluid from multiple reservoirs to an appliance or other suitable device; and a multiple tubing arrangement coupled between the dispenser and the multiple reservoirs of fluid, the multiple tubing arrangement being responsive to a vacuum provided from the dispenser, for drawing the fluid from the multiple reservoirs so as to deplete the multiple reservoirs at relatively equal amounts based on the Venturi effect. The multiple tubing arrangement comprises a primary inlet tube for arranging in a primary reservoir, an auxiliary inlet tube for arranging in an auxiliary reservoir, and a feed connector tube arranged between the primary inlet tube and auxiliary inlet tube. The primary inlet tube is coupled to the auxiliary inlet tube so as to provide a proportional vacuum and siphoning effect. The multiple tubing arrangement siphons and depletes the fluid from the primary reservoir and the auxiliary reservoir based on the Venturi effect.

Abstract: A filtering device includes an isolation substrate including a first plane and a second plane, a micro-strip line deposited on the first plane of the isolation substrate for transmitting signals, and a ground metal layer deposited on the second plane of the isolation substrate for providing grounding. A meander-shaped resonating cavity is formed in an area of the ground metal layer corresponding to an area of the micro-strip line, for generating a rejection band on the micro-strip line.

Abstract: A liquid dispensing system for dispensing liquid from a container to be consumed includes a base being positionable on a support surface. The base includes a perimeter wall defining an interior space of the base. The interior space receives and stores the liquid to be dispensed. A spigot is coupled to the perimeter wall and in fluid communication with the interior space. A container is positioned on the base. The container contains the liquid to be supplied to the interior space of the base. A pump assembly is coupled to the base and in fluid communication with the container and the interior space of the base. The pump assembly is actuated to transfer liquid from the container and into the interior space of the base.

Abstract: Disclosed herein is a structure for storing and preserving perishable liquids, including a container having a central opening and a plunger, sized and shaped to fit within the central opening. The plunger having means to seal the container and the plunger being slidable thereto. The container having a bottom defining a detent extending toward the central opening. And, the plunger having a bottom end zone with a similar detent. The plunger having a central internal passageway and a cap for sealing one of the passageway. The plunger inducing pressure on the liquid and the cap maintaining the pressure for preserving the liquid.

Abstract: A washing apparatus such as an automatic laundry washing machine includes a wash agent dispenser drawer including an additive compartment for storing various additives such as detergent, bleach and fabric softener. One or more water inflow tubes may extend downwardly into the additive compartment and may be configured to deliver water for diluting the additives contained in the compartment. The inflow tubes are of sufficient length to reach a sub-surface portion of additive held in the compartment. Water may simultaneously be delivered to the surface of the additive. Furthermore, inflow tubes have their outlets positioned adjacent to the base(s) of one or more siphon post/cap assemblies located in the additive compartments, such that a churning effect is produced from the injection of water through the tubes and the siphoning action of the siphon post, whereby mixing is enhanced and additive buildup may be avoided and/or removed.

Abstract: A septic field dosing system is described which utilizes a self starting true siphon to deliver a dose of septic tank effluent into a conventional septic field. The precision siphon unit described by present invention not only eliminates the need for electrical services to the septic tank, thereby eliminating the need for pumps and solenoid operated valves and switches at the septic tank, but also contains the effluent handling equipment in a small unit which uses the available features of the septic tank to assist in the performance of its operations. For example, the drawdown of the septic tank which is now determined by the configuration of the siphon unit is used to entirely control the operation of the dosing siphon. Further, the dimensional configuration of the precision siphon taught by the invention operates within the boundaries of the draw down to deliver a proper size dose to the septic field.

Abstract: A fluid dispensing apparatus is described, the operation of which involves installation thereinto of a single-use fluid dispenser cartridge. The cartridge itself comprises a pliable fluid reservoir and a fill tube assembly. The fill tube assembly—the component which most immediately acquires and delivers a definable volume of fluid into a vial or other container—is characterized by its incorporation of means for continuously measuring fluid volume therein, particularly, as a function of electrical capacitance. Accuracy, precision, and reliability are improved. The apparatus can be used to dispense a broad range of fluids, including viscous fluids. No moving mechanical parts are required in the measurement of capacitance.

Abstract: An improved dispensing device for liquids held in enclosed containers. The dispensing device attaches to the container opening normally used for pouring the liquid. Once attached, the dispensing device first acts like a siphon, then can be switched to operate like a standard pouring spout in order to completely empty the container of all liquid without removing the dispensing device.

Abstract: A dispersing system comprises a dispersing apparatus, a storage tank for storing a dispersing medium and a liquid containing a material to be treated, and conduits for connecting the dispersing apparatus in fluid communication with the storage tank. The dispersing apparatus comprises a dispersing chamber, at least one rotationally driven disc, a suction inlet through which the liquid containing the material to be treated and the dispersing medium are drawn from the storage tank into the dispersing chamber by the suction created by rotation of the disc, a discharge outlet, and a medium-separating device for separating the dispersing medium from the liquid containing the dispersed material and selectively discharging the liquid containing the dispersed material but not the dispersing medium from the discharge outlet.

Abstract: A constant level of fluid (8 or 106) in vessel (1 or 104) is maintained using a reservoir (5 or 102) and a tank (4 or 101). Float valves (9 or 107) which raise and lower with the level of fluid in the reservoir are used to selectively close off fluid passages (13 or 109) from the tank into the reservoir. Until the desired level of fluid is reached in the reservoir, the reservoir continuously provides fluid to the vessel. Once fluid flow into the reservoir is stopped, flow from the reservoir into the vessel also stops. The vessel can be positioned adjacent to or remote from the reservoir.

Abstract: A cylindrical piston pump with an inlet suction line and outlet discharge port. The pump is capable of lifting chlorine-containing fluid from out a portable container and, with little inducement save gravity, automatically transferring the liquid to a desired, generally lower location. The automatic transfer is effected by flap or analogous valve control; while semi-automatic is effected by rotary or shuttle, manually actuated valves. Outflow is enhanced by gravity, spring return of the piston and/or connection of the discharge line to a fluid entrainment assembly.

Abstract: Leakage from the manifold of a manifold type multi-channel dispenser, aspirator, or washer may be diminished by employing siphon shaped pipettes and backsipping liquid from the long leg of such siphon shaped pipettes after each use of the device. The siphon shaped pipettes may be attached to the top-most part of the manifold so as to facilitate the purging of bubbles therefrom.

Abstract: A sort of self-fill siphon pipe comprises a straight tube, a hose fitted onto the upper end of the straight tube and in communication with the straight tube, and a one-way valve fitted on the lower end of the straight tube wherein the one-way valve only allows the liquid to enter into the interior of the straight tube. In another form, there is provided inside the straight tube a tubular piston having a one-way valve slidable in the tube. The one-way valve on said tubular piston has a communication direction identical with that of the one-way valve at the lower end of the straight tube. While in use, the straight tube is inserted into the liquid and moves up and down intermittently, the liquid enters into the siphon pipe intermittently through the one-way valve and the siphon pipe is led into the siphon state to automatically suck the liquid.

Abstract: The invention relates to a feeding system (1) for enteral feeding comprising a container (2) preferably constructed as a disposable article for receiving the food. Said container (2) is disposed in a suspension means (3) which is constructed such that the container (2) in the suspended state points with its opening (5) upwardly and assumes a position inclined to the horizontal. As a result when the tubing system (4) is introduced into the container for suppyling the nutrient solution to the patient no leaks can occur because the opening (5) points upwardly so that along the periphery of a piercing tube (17) introduced into the container (12) no solution can drip out. Nevertheless, due to the inclined position of the container (2) and the arrangement of the end of the inserted piercing tube (17) at the lowermost point (6) of the container (2) all the solution can be extracted; for this purpose for the extraction preferably a drip chamber (21) is provided in connection with a tube clamp ( 26).

Abstract: A system for dispensing liquid chemicals, such as photoresist, from containers which includes a valve to govern the flow from the containers, a reservoir to intermediately hold the chemicals prior to pumping, and a level detector to monitor the liquid in the reservoir and to control the valve, and an aspirator to remove air from the reservoir. The aspirator is activated in response to signals from the level detector indicating that the reservoir level is low. The increased suction causes liquid to be drawn from the container into the reservoir. If after a period of time the level detector indicates the reservoir level is still low, the valve will cause liquid to be drawn from a different container. The aspirator is deactivated a period of time after the level detector indicates that the reservoir level is normal.

Abstract: A device for use in brewing tea comprises a bowl having an outlet aperture formed in its bottom for discharge of brewed tea; an outlet tube communicating with the outlet aperture and extending upwardly from the bottom of the bowl; and a sleeve surrounding and spaced from the outlet tube to provide an annular siphon passageway therebetween, the upper end of the sleeve being closed and the lower end of the sleeve resting on the bowl bottom. Capillary inlet apertures are formed in the lower portion of the sleeve, the dimensional relationship of the capillary inlet apertures to the annular siphon passageway being such that, when the capillary inlet apertures are exposed by the fall of the liquid level in the bowl, the static pressure of the liquid retained in the annular siphon passageway is balanced by the capillary pressure of the liquid retained in the capillary inlet apertures, with the result that the passage of air bubbles through the capillary inlet apertures is prevented.

Abstract: A vacuum insulated, heat retaining, liquid dispensing bottle which can readily dispense or supply water comprises an outer bottle body, a bottle cover, an internal bottle installed within and spaced from the outer bottle body providing the function of precluding heat loss, a siphon pipe extending deeply into the internal bottle, a discharge pipe with an end connected to the siphon pipe and a lower end extending out of the outer bottle body. The lower end of the discharge pipe is equipped with a discharge valve. The bottle is further equipped with a stopper having a compressed air mechanism. After liquid stored within the internal bottle fills the siphon pipe and the discharge pipe, liquid may be dispensed or not dispensed from the bottle by switching on or switching off the discharge valve provided outside of the bottle body.

Abstract: A structurally simple device in the form of a closed container and vented outlet conduit operates in accordance with Charles' law to intermittently dispense quantities of a liquid reagent in response to an increase in ambient atmospheric temperatures. The present liquid dispensing device finds particular utility in supplying liquid reagents, such as scale inhibitors, biocides and the like to the water circulating systems of air conditioners.