A conversion device for converting linear movement in a stationary system into rotary movement about a pivot axis in a system which rotates about an axis of rotation that is not identical or parallel to the pivot axis. The conversion device has a lift element and a lift device with which the lift element can be moved with translatory movement relative to the stationary system. The lift element has first and second lift element portions connected together by a rotary bearing so that the first lift element portion can be rotated relative to the second lift element portion about the axis of the rotary bearing. The first lift element portion is connected to the lift device and the second lift element portion is connected to the conversion device. The conversion device is connected to a shaft positioned on the pivot axis so that a linear movement of the second lift element portion is converted into a rotary movement of the shaft about the pivot axis.

The present invention is directed to a fluid mixing system. In an embodiment, the fluid mixing system includes a first vessel; a second vessel disposed within the first vessel; a mixer disposed outside of the first vessel in fluid communication with the second vessel; and a media introduction port disposed outside of the first vessel in fluid communication with the mixer.

Systems, methods and apparatus for Shear TUrbulence Resuspension Mesocosm (STURM) tanks, with high instantaneous bottom shear stress and realistic water column mixing. The tanks can be programmed to produce tidal or episodic sediment resuspension for extended time periods, over muddy sediments with a variety of infaunal benthic organisms. A resuspension paddle produces substantially uniform bottom shear stress across the sediment surface while gently mixing a 1 m deep overlying water column. The STURM tanks can be programmed to different magnitudes, frequencies, and durations of bottom shear stress and thus resuspension with proportional water column turbulence levels over a wide range of mixing settings for benthic-pelagic coupling experiments.

Embodiments of a mixing device power system generally include a power control module, an AC motor, and a variable frequency drive, wherein upon application of AC power to the system, electrical power is provided to the power control module which transmits electrical power to the AC motor, whereby rotation of a mixing spindle is initiated. After the spindle has begun rotating, transmission of electrical power from the power control module to the AC motor is ceased, and substantially simultaneously electrical power transmission is commenced from the power control module to the variable frequency drive which transmits electrical power to the AC motor, whereby rotation of the mixing spindle is continued. A method of using the mixing device power system to mix a fluid sample is also provided.

The present invention is directed to a fluid mixing system. In an embodiment, the fluid mixing system includes a first vessel; a second vessel disposed within the first vessel; a mixer disposed outside of the first vessel in fluid communication with the second vessel; and a media introduction port disposed outside of the first vessel in fluid communication with the mixer.

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.

A dual centrifuge (10) embodies the following: a driveshaft (16), a rotor (20), which is mounted on the driveshaft (16) and which can be removed axially in a removal direction (E), for a dual centrifuge, having at least one rotational unit (30); an opening (18) in the rotor (20), wherein an end region (16a) of the driveshaft (16) at least engages into said opening; and an additional drive mechanism (32) for the rotational unit or the rotational units (30). The dual centrifuge additionally has a design for operating various additional types of rotors; however, only one rotor (20, 40, 50) can be arranged on the driveshaft (16) at all times. The various rotor types (40, 50) are also adapted to the additional drive mechanism (32) for the rotational units (30) such that the function is not adversely affected. A design for operating at least one angular head rotor (40) and a swing-out rotor (50). For this purpose, the driveshaft (16) and the various rotor types (40, 50) are adapted to each other. The bearing (16), the driveshaft (16), and the various rotor types (40, 50) are adapted to one another such that each non-dual rotor (40, 50) has a geometry that is measured such that when the rotor (40, 50) is mounted, a drive device (32a) of the additional drive mechanism (32) for the rotational units (30) is arranged so as to not contact the mounted rotor (40, 50).

Embodiments of a mixing device power system generally include a power control module, an AC motor, and a variable frequency drive, wherein upon application of AC power to the system, electrical power is provided to the power control module which transmits electrical power to the AC motor, whereby rotation of a mixing spindle is initiated. After the spindle has begun rotating, transmission of electrical power from the power control module to the AC motor is ceased, and substantially simultaneously electrical power transmission is commenced from the power control module to the variable frequency drive which transmits electrical power to the AC motor, whereby rotation of the mixing spindle is continued. A method of using the mixing device power system to mix a fluid sample is also provided.

A blending appliance in accordance with the principals of the present invention includes a linear motor drive comprising a magnet structure secured to a reaction mass and a coil structure secured to a shaker platen, the shaker platen adapted to secure a blending cup. A third mass is secured to the reaction mass via at least one biasing member. A ground is secured to the third mass via at least one biasing member. The shaker platen is secured to the reaction mass via at least one biasing member. The magnet structure and coil structure impart a force to the reaction mass and the shaker platen, which force is driven by the biasing members and the masses of the shaker platen, the reaction mass, and the third mass into resonance, thereby maximizing payload amplitude, minimizing forces transmitted to ground, and minimizing driver amplitude. The smoothie blending cup comprising structure to generate at least two forces applied upon the smoothie ingredients, the forces selected from the group consisting of pulverizing force, shear force, rotational-kinetic energy force, radial-kinetic energy force, and combinations thereof. The smoothie blending cup and cap can be sealed with the beverage ingredients contained therein at the point of manufacture.

An agitation/defoaming device is provided, which can independently control revolving and rotational motion and can change a rotational direction relative to a revolving direction without a two-system rotary drive.

The apparatus includes a rotary driving source, a braking device for rotary motions; first and second rotors revolved around revolving shaft, and first and second rotational bodies container holders pivotally supported by the first rotor. A breaking force is applied to the second rotor revolving along with the first rotor, generating a rotational motion, which is transmitted to either the first or second rotational body according to the revolving direction of the first rotor. The rotational motion is then transmitted from the first or second rotational body to the container holder through the first rotational body, thereby transmitting to the object the rotational motion according to the revolving direction while revolving the object.