The disclosure is directed to a sample preparation apparatus for grinding or homogenizing test samples. More specifically, the disclosure relates to grinding samples using rotational and linear motion. Grinding samples can be accomplished with an apparatus with a slider-crank mechanism that is attached to an oscillating connecting linkage. The amplitude of oscillatory motion can be greater than or equal to a length of a sample processing chamber.

The invention relates to a stirring device (1) which has at least one stirring element (4) which is driven by a stirring drive (2), contacts a stirring medium (3) in the use position, can be moved relative to the stirring drive (2) and to the stirring medium (3), and can be at least partly immersed into the stirring medium (3) in the use position. The invention is characterized in that stirring drive (2) is arranged in the interior of the stirring element (4). The stirring device (1) is and/or can be supported by the stirring medium (3), in particular without a holder and/or without a stand, whereby a separate mounting, a stand for a stirring element and/or for a stirring drive, and/or a stirring drive housing can be omitted.

A kit and a method for using the kit to generate nanoseeds from protein nanocrystals and aggregates is disclosed. The method comprises mixing a plurality of beads with a protein nanocrystal or aggregate, and agitating the mixture to generate the nanoseeds. Nanoseeds made by disclosed embodiments may be of a high quality, as evaluated by TEM, and can be used to produce high quality protein crystals. Additionally, spectroscopic techniques, such as UV fluorescence and/or brightfield microscopy can be used to identify aggregates suitable to produce nanoseeds.

A continuous mixer/reactor and a mixing process are provided in which materials flow in an orderly fashion along the length of a channel (9) and the materials are mixed in a direction transverse to the axis of the channel (9) by the provision of agitator elements (5, 7) within the channel (9) and shaking the channel (9) so that the agitator elements (5, 7) move within the channel (9) in the radial direction of the channel (9).

A portable fluid mixing vessel for containing fluid. The vessel interior includes a mixing component designed for effecting mixing of a fluid with a powdered substance. The spring loaded component is releaseably attached to the bottom of the vessel interior, and is configured to gently break apart clumps of the powder allowing the powder to go into solution without over-mixing. A turbine is attached to the spring portion, the turbine having angled blades to induce a gentle stirring motion in response to vertical reciprocation of the turbine. The gentle breakdown of the powder creates a mixture which has a texture like that of a stirred mixture, as opposed to a pureed or blended mixture.

A physically independent agitator for insertion in a liquid container is disclosed. An example agitator includes a top propeller and a bottom propeller connected by a rod. The agitator has sufficient density to be suspended in the liquid. Each of the propellers includes a plurality of blades supported by a hub connected to the rod. Each of the blades has a surface located at an angle to a central axis of the body. When liquid is poured into the container and the container is shaken, the agitator is spun by the force of the liquid on the propeller blades causing agitation of the liquid.

A kit and a method for using the kit to generate nanoseeds from protein nanocrystals and aggregates is disclosed. The method comprises mixing a plurality of beads with a protein nanocrystal or aggregate, and agitating the mixture to generate the nanoseeds. Nanoseeds made by disclosed embodiments may be of a high quality, as evaluated by TEM, and can be used to produce high quality protein crystals. Additionally, spectroscopic techniques, such as UV fluorescence and/or brightfield microscopy can be used to identify aggregates suitable to produce nanoseeds.

There are provided a coating material for electrical equipment, a method for manufacturing a coating material for electrical equipment, and a closed insulating device, capable of suppressing floating and moving around of foreign substances in electrical equipment. A coating material for electrical equipment 20 in an embodiment includes: a matrix resin 50 composed of an epoxy resin; a first filler 10 dispersedly contained in the matrix resin 50 and composed of whiskers having a semiconductive specific volume resistivity; a second filler 30 dispersedly contained in the matrix resin 50 and composed of particles having a semiconductive specific volume resistivity; and a third filler 40 dispersedly contained in the matrix resin 50 and composed of a planar, fibrous, or lamellar substance having insulating properties.

The present invention is a drink mixing device generally characterized as having a ball assembly in wireless communication with a base assembly. The base assembly comprises a casing for storing a first battery, a transmitter that receives power from the first battery, a base assembly wireless coil, a power port receiving for external power and host or peripheral connection, a button located along the casing wherein the button is electronically connected to the transmitter. The ball assembly comprises a casing for storing a second battery, a motor, a ball assembly wireless coil, and a receiver. The motor turns a propeller external to but affixed to the exterior of the ball assembly when the motor is powered and turned on. The propeller is protected by a metal spiral.