A mixing apparatus for mixing or stirring substances includes a mixing tank for receiving the substances, a rotor arranged in the mixing tank with which a vane for mixing or stirring the substances can be driven to rotate about an axial direction, and a stator arranged outside the mixing tank and with which the rotor can be driven contactlessly magnetically to rotate about the axial direction in the operating state and is supported magnetically with respect to the stator. A bar extends in the axial direction and is rotationally fixed to the rotor, and a limiting element fixed with respect to the mixing tank cooperates with the bar, with the limiting element being configured such that the bar rotates with respect to the limiting element and with a tilt of the rotor being limited by a physical contact between the bar and the limiting element.

The present invention relates to a magnetic mixer capable of minimizing mixing of foreign substances, which are generated in components of the magnetic mixer, of a liquid to be mixed, having a simple structure for cleansing a structure supporting an impeller shaft, and capable of securing a sufficient output when a large-scale mixing system with an impeller shaft is configured; and a mixing system including the same.

A colloidal brewing system has a transparent container assembly with a watertight bottom portion and an open top portion, the container assembly adapted to contain water. A removable lid electronic housing with two replaceable electrically charged silver rod members is disposed on a bottom portion of the lid member, the rod members extending substantially to near the bottom of the container assembly. A magnetic stir assembly substantially centers an interior bottom portion of the container assembly and to rotate, in the water, on a parallel plane to the bottom portion. A receiver and transmitter coil assembly are disposed within a base container assembly, the base container assembly designed to gravitationally support the watertight bottom portion of the transparent container assembly, the receiver coil and transmitter coil assembly inductively coupled to the magnetic stir assembly. The inventive concept has a rechargeable battery, a control panel, power port members, and handle member.

In accordance with aspects and embodiments, a magnetically driven liquid dispersion device is provided comprising a rotor, a funnel, and a rotary sprayer. The rotor is received by the funnel comprises an Archimedes screw and at least one diametric rotor magnet. The sprayer receives the funnel and comprises at least one diametric sprayer magnet. Application of an external rotating magnetic field generated by, for example, magnetic stirrer, causes the rotor to rotate within the funnel. Rotation of the rotor causes rotation of the sprayer about the funnel.

In accordance with aspects and embodiments, a magnetically driven liquid dispersion device is provided comprising a rotor, a funnel, and a rotary sprayer. The rotor is received by the funnel comprises an Archimedes screw and at least one diametric rotor magnet. The sprayer receives the funnel and comprises at least one diametric sprayer magnet. Application of an external rotating magnetic field generated by, for example, magnetic stirrer, causes the rotor to rotate within the funnel. Rotation of the rotor causes rotation of the sprayer about the funnel.

Provided is an apparatus for removing thermal stratification generated by turbulent penetration by using a rotation of an inner ring and an outer ring. The apparatus for removing thermal stratification removes thermal stratification formed in a branch pipe branching from a main pipe through which a high-temperature fluid flows, the apparatus including: a hollow body portion coupled to the branch pipe; an inner ring being magnetic and arranged inside the body portion so that an inner circumferential surface thereof is in contact with a fluid; and an outer ring arranged outside the body portion to face the inner ring, the outer ring being magnetic of a polarity opposite to a polarity of the inner ring, wherein, when the outer ring is rotated, the inner ring rotates by a magnetic force.

A mixing system includes a container for containing a fluid, and an agitator assembly disposable in the container for mixing the fluid. The agitator includes an extensible shaft and at least one impeller connected to the extensible shaft.

A device for collecting a biological sample from a semi-solid surface. The device has a shaft with a proximate end and a distal end and a tip integrated with the shaft at the proximate end. The tip has a surface adapted to collect microorganisms thereon or release microorganism from, or both, wherein the adapted surface comprises at least one feature of a recess or extension to increase surface area of the tip and collect microorganisms thereon. Examples of such features include microfeatures with dimensions of about 1000 μm or less. Other examples include a pipette tip.

The system and method of the invention pertains to an axial flux stator is implemented to replace the drive-end magnets and the drive motor. The axial flux stator comprises a control circuit to control the voltage and current provided to the stator, to measure the torque and speed of rotation, and to measure the magnetic flux and magnetic flux density produced by the axial flux stator and impeller magnets, individually or in combination. The axial flux stator comprises a plurality of current carrying elements to produce magnetic flux in an axial direction and drive the impeller.

A vessel configured to contain a liquid is provided. The vessel includes a collapsible bad, a reusable support structure, a sensor, and a controller. The collapsible bag is operative to contain the liquid. The reusable support structure is operative to support the collapsible bag. The sensor is operative to measure a parameter within the collapsible bag. The controller is in electronic communication with the sensor and operative to introduce an antifoaming agent into the collapsible bag based at least in part on a signal received from the sensor.