A device for bubbling a gas into a liquid is disclosed. The device comprises a first bubbling apparatus nested inside a second bubbling apparatus. The first bubbling apparatus comprises a gas inlet for receiving the gas and a plurality of first openings for releasing the gas. The second bubbling apparatus at least partially encloses the plurality of first openings of the first bubbling apparatus. The second bubbling apparatus receives the gas from the plurality of first openings. The second bubbling apparatus comprises a plurality of second openings for bubbling the gas into the liquid.

A fluid recirculation and dispenser valve unit of a fluid comprises a fluid recirculation and dispenser valve and a cartridge in which an axial valve seat is made which at least partially houses said valve. Said valve comprises a valve body and a valve rod which extends partially in said valve body and which is axially movable between a closed rearward position of the valve and an open forward position of the valve. The axial valve seat comprises a proximal recirculation portion, which communicates fluidically with a recirculation duct, and a distal dispenser portion in fluidic communication with a dispenser duct.

A stator operable to generate a rotating magnetic field for an electrical rotating machine, the stator comprising at least one circuit board with electrically conductive portions formed thereon, the electrically conductive portions connected with a multiphase configuration, wherein a phase comprises: on a first face of the circuit board(s) electrically conductive portions arranged as a plurality of elements, an element comprising a radially extending radial portion having: connected at a proximal end thereof a proximal portion, the proximal portion extending therefrom with a directional component in a first angular direction; and connected at a distal end thereof a distal portion, the distal portion extending therefrom with a directional component in a second opposed angular direction, whereby proximal and distal are defined relative the centre of rotation of the magnetic field and said angular direction is defined about said centre of rotation; and on a second face of the circuit board(s) electrically conductive portions comprising corresponding elements, whereby the proximal portion extends with a directional component in the second opposed angular direction and the distal portion extends with a directional component in the first angular direction.

This invention is an oil-well pumping unit. It may be used for production of stratum fluids from marginal well stock at large depths. The invention increases reliability and improves power performance by including a fully integrated plunger pump fitted with discharge valves and a gravity gas separator, non-return valves, and a coupling for fastening the oil-well pumping unit to flow tubing. The downhole linear motor is mounted below the plunger pump. A slider upstroke damper and a slider down-stroke damper, as well as a telemetry unit, are mounted below the linear motor. The unit is linked to a ground-based control unit through a neutral wire interconnected with linear motor windings. The ground-based control unit may be designed as a three-phase high-frequency inverting controller and output transformer, and is connected to the downhole linear motor through an insulated three-wire cable.

A reaction method with a homogeneous-phase supercritical fluid includes introducing a first fluid into a mixing chamber. A mass is less than or equal to that can be absorbed by the molecular sieve component, totally absorbing the first fluid by the molecular sieve component. A second fluid is introduced into the mixing chamber with a mass being greater than that can be absorbed by the molecular sieve component. A temperature and a pressure in the mixing chamber are adjusted to a critical temperature and a critical pressure of the second fluid, respectively, releasing the first fluid in supercritical phase from the molecular sieve component into the mixing chamber, followed by homogeneously mixing with the second fluid in supercritical phase in the mixing chamber to obtain a homogeneous-phase mixing fluid. The homogeneous-phase mixing fluid is then introduced into a reaction chamber connected to the mixing chamber.

Settling unconverted pitch from a SHC reactor effluent before fractionation improves efficiency of fractionation of slurry hydrocracked products. The recycle of soft pitch to the SHC reactor results in improved reactor operation by avoiding the recycle of lighter products which vaporize in the reactor to occupy reactor space and the recycle of hard pitch which will not convert. The settling step facilitated by mixing with a solvent can achieve a separation between soft pitch and hard pitch not achievable in a fractionation column.

A device for mixing powders by a cryogenic fluid, characterised in that it comprises: a chamber for mixing the powders, comprising a cryogenic fluid, provided with means for forming a fluidised powder bed; a chamber for supplying powders in order to allow the powders to be introduced into the mixing chamber; a chamber for supplying cryogenic fluid in order to allow the cryogenic fluid to be introduced into the mixing chamber; a system for generating vibrations in the fluidised powder bed; and a system for controlling the system for generating vibrations.

Disclosed herein are stable complexes with controlled particle size, increased apparent solubility and increased dissolution rate comprising as active compound Celecoxib, its salts, or derivatives thereof, which is useful in the treatment of osteoarthritis, rheumatoid arthritis, juvenile rheumatoid arthritis, ankylosing spondylitis, acute pain especially in cancer related acute pain, primary dysmenorrhea. More specifically, the complexes possess instantaneous redispersibility, increased apparent solubility and permeability that provide faster onset of action for acute pain relief and lower GI related side effects. Further disclosed are methods of formulating and manufacturing the complexes described herein, pharmaceutical compositions, and uses and methods of treatment.

A beverage container may comprise a beverage container lid assembly comprising at least one concentrate well to hold a concentrate vessel, a concentrate vessel retainer for each concentrate well to secure the concentrate vessel in the concentrate well, a feed line for each concentrate well comprising a feed line needle to puncture the concentrate vessel in the at least one concentrate well, a Venturi mixer in fluid communication with each feed line, a mixing valve in fluid communication with each feed line, wherein fluid flows from the concentrate vessel to the Venturi mixer when the mixing valve is open and the concentrate vessel is punctured by the feed line needle. Methods of using the beverage container and beverage container lid assembly are also described.

A system for blending polymers and other chemicals in an aqueous liquid is provided. Static mixers and tubes, preferably in one or more tube bundles, provide a volume sufficient to allow a residence time in the system to hydrate a polymer. Static mixers may be integrated with a tube bundle. The system may be mounted on a portable base such as a trailer. The concentration of polymer and chemicals in water may be controlled by a controller. A variable speed electric pump may be utilized to precisely control the amount of polymers or other chemicals added to the aqueous liquid.