A system for performing a gas-liquid mass transfer includes a container bounding a compartment and having a top wall, a bottom wall, and an encircling sidewall extending therebetween. A tube has a first end and an opposing second end, the first end of the tube being disposed within the compartment of the container. A nozzle is disposed within the compartment of the container and has at least one outlet, the nozzle being coupled with the tube so that a gas can be passed through the tube and out the at least one outlet of the nozzle. The nozzle is sufficiently buoyant so that when a fluid is disposed within the compartment of the container, the nozzle floats on the fluid.

An apparatus, vortex generator assembly and method for automated cell lysis and nucleic acid purification and processing. The vortex generator assembly includes sample holder having a lysis well, at least one wash well, and an elution well. The vortex generator assembly also includes a sample holder cover having a plurality of vibration rods for creating a vortex in the wells of the sample holder. The apparatus includes motor operating a rotating cam to cause the vibration rods to vibrate and create the vortex in a well holding fluid and magnetic beads, wherein the vortexing speed is sufficient to overcome the magnetic attraction between the beads and disperse the beads in solution, to collect nucleic acids such as DNA.

An apparatus, vortex generator assembly and method for automated cell lysis and nucleic acid purification and processing. The vortex generator assembly includes sample holder having a lysis well, at least one wash well, and an elution well. The vortex generator assembly also includes a sample holder cover having a plurality of vibration rods for creating a vortex in the wells of the sample holder. The apparatus includes motor operating a rotating cam to cause the vibration rods to vibrate and create the vortex in a well holding fluid and magnetic beads, wherein the vortexing speed is sufficient to overcome the magnetic attraction between the beads and disperse the beads in solution, to collect nucleic acids such as DNA.

A device for providing a bone cement paste from two starting components, comprising a hollow cylindrical cartridge with an interior space, wherein, in a proximal part of the interior space, a bone cement powder is stored as the first starting component, and, in a distal part of the interior space, at least one bag containing a monomer liquid as the second starting component is stored, wherein the interior space is connectible at the proximal part of the interior space to a negative pressure source via a vacuum connector, wherein a dispensing plunger, which is movable axially in the interior space, is arranged between the bone cement powder and the at least one bag, and a feed plunger, which is movable axially in the interior space, is arranged on a side, axially opposite the dispensing plunger.

A device, which serves to separate particles of a bulk material, which is deliverable at an input location and is removable processed in different or at least approximately unitary particle sizes at an output location, includes at least one separating element, which has a metal separating plate with through-openings provided therein, which separating element can be provided with ultrasonic energy and for this purpose is connected to an ultrasonic transducer and which is held by a holding device. The holding device is a mounting shaft, which is held at one end or at both ends fixedly or movably, in particular rotatably and/or axially displaceable, and which at one end or at both ends is connected to an ultrasonic transducer, by means of which ultrasonic energy is couplable via the mounting shaft into the separating element, which is designed to be dimensionally stable.

A device, which serves to separate particles of a bulk material, which is deliverable at an input location and is removable processed in different or at least approximately unitary particle sizes at an output location, includes at least one separating element, which has a metal separating plate with through-openings provided therein, which separating element can be provided with ultrasonic energy and for this purpose is connected to an ultrasonic transducer and which is held by a holding device. The holding device is a mounting shaft, which is held at one end or at both ends fixedly or movably, in particular rotatably and/or axially displaceable, and which at one end or at both ends is connected to an ultrasonic transducer, by means of which ultrasonic energy is couplable via the mounting shaft into the separating element, which is designed to be dimensionally stable.

A vertical motion mixer has a drive mechanism with two axes of guidance for vertical motion. A reciprocating yoke is fixedly secured to the driving shaft for the mixer, without any guide bearing for the mixer driving shaft. The mixer drive unit is of compact and simplified design with minimal moving parts, and including drive gearing with planetary gears to minimize wear during reciprocating movement.

A fertilizer mixer includes a housing, a plurality of supporting rods, a roof plate, a mixing room, a lifting mechanism, a stirring mechanism, a control mechanism, a driving mechanism, and a cleaning mechanism. The housing includes a top end and one end of each of the plurality of supporting rods is disposed on the top end. The roof plate is disposed on the other end of each of the plurality of supporting rods. The stirring mechanism is fixed on the roof plate. The mixing room includes a bottom wall and the housing includes an inner bottom surface. The mixing room includes a discharge port disposed on the bottom wall, and a seal plug disposed in the discharge port. The lifting mechanism is disposed between the bottom wall and the inner bottom surface and an outer sidewall of the mixing room abuts against an inner sidewall of the housing.

A device for extracting polysaccharide from acaudina molpadioides is provided, which includes a mixing box, a blocking cover, a feed pipe group, a discharge pipe, a bottom plate, a side plate, a first motor, a first transmission shaft, two drive shafts, a first circular gear, two second circular gears, two rotary discs, two connecting frame groups, two semiarc rotary discs, a slide bar, a stop collar, a fixed link, a baffle, a first bushing group and a first sleeve spring group. A top side wall and a rear lower side of the mixing box are communicated with the feed pipe group and the discharge pipe, respectively. Front side and rear sides of the slide bar are longitudinally connected with multiple first engaging teeth. Both the two semiarc rotary discs are connected with multiple second engaging teeth. The fixed link is connected between the stop collar and the slide bar.

A re-mixing dispenser for containing and dispensing a liquid. The dispenser may have one or more tubes, each containing a different liquid. At least one of the liquids may be re-mixed in situ, using a special two-piece plunger and plunger rod. A mixing piece of the two-piece plunger is moveable independently of a top piece and has blades that allow it to move through the liquid. A plunger rod is removably attached to the mixing piece and is operable to move the mixing piece up and down within the tube during mixing. The two plunger pieces are joined and moved as a single plunger during dispensing.