The invention is related to a dynamic mixer head which comprises a connecting cover, a rotor and a housing. The connecting cover comprises a concentric rotor opening. The rotor has a rotor axle mounted in the concentric rotor opening and a mixing rotor connected with the rotor axle. The mixing rotor comprises multiple vaned inner rotors with quarter-circle shaped multiple vanes and a vaned front rotor opposite to rotor axle of the mixing rotor with multiple vanes complementary to the multiple vanes of the multiple vaned inner rotors. The housing mounted to the connecting cover comprises at least two grooves disposed on the circular partition. Each of the at least two grooves comprises a spacer along each of the at least two grooves. The dynamic mixer head can enhance the mixing effect of two different component substances during rotation.

An agitation device for agitating products held in wells of sample vessels or a laboratory microplate is disclosed. The device is arranged to retain a microplate and to agitate an agitation member comprising an array of agitation projections which enter the wells of the microplate. The agitating motion can be horizontal and damping means can be provided between an actuator and parts of the device to reduce overall vibrations. A related method of agitation of microplate or sample vessel contents is described. A novel arrangement for receiving a replaceable agitation member for the device is also disclosed.

A method for connecting functional elements (14) to a shaft (10, having the following steps: (a) forming elevations (12) for receiving the functional elements (14), said elevations (12) being machined out of the shaft (10) by removing material, and (b) welding the functional elements (14) to the elevations (12) on the shaft (10).

A method for connecting functional elements (14) to a shaft (10, having the following steps: (a) forming elevations (12) for receiving the functional elements (14), said elevations (12) being machined out of the shaft (10) by removing material, and (b) welding the functional elements (14) to the elevations (12) on the shaft (10).

There is provided an apparatus and a method for producing a play compound and the play compound itself which, in one embodiment is a compound which sufficiently fluid to be pliable and is typically cold and slimy to the touch. The apparatus and a method provide a powder and liquid to a user, which can be a non-skilled person and thereby allow the mixing of the powder and liquid together by that person to form the play compound outside of a factory environment whilst ensuring that the play compound which is formed has the desired characteristics. Most typically the user which performs the mixing can be the end user, such as a child, who will play with the compound and so the formation of the play compound forms a new part of the play experience.

There is provided an apparatus and a method for producing a play compound and the play compound itself which, in one embodiment is a compound which sufficiently fluid to be pliable and is typically cold and slimy to the touch. The apparatus and a method provide a powder and liquid to a user, which can be a non-skilled person and thereby allow the mixing of the powder and liquid together by that person to form the play compound outside of a factory environment whilst ensuring that the play compound which is formed has the desired characteristics. Most typically the user which performs the mixing can be the end user, such as a child, who will play with the compound and so the formation of the play compound forms a new part of the play experience.

An apparatus for mixing and agitating secondary battery electrode materials includes: a vessel configured to accommodate secondary battery electrode material; an agitator configured to rotate and elevate to agitate the material in the vessel; a rotation controller configured to control the rotation of the agitator; and an elevation controller configured to control the elevation of the agitator.

An apparatus for mixing and agitating secondary battery electrode materials includes: a vessel configured to accommodate secondary battery electrode material; an agitator configured to rotate and elevate to agitate the material in the vessel; a rotation controller configured to control the rotation of the agitator; and an elevation controller configured to control the elevation of the agitator.

A stirring device for a powder tank of an apparatus for manufacturing a three-dimensional object. The stirring device is configured to rotate within the powder tank about an axis of rotation, and comprises a base plate and a strut. The strut extends from the base plate and is arranged to extend into the powder tank forming an obtuse angle with the outer edge of the base plate.

A stirring device for a powder tank of an apparatus for manufacturing a three-dimensional object. The stirring device is configured to rotate within the powder tank about an axis of rotation, and comprises a base plate and a strut. The strut extends from the base plate and is arranged to extend into the powder tank forming an obtuse angle with the outer edge of the base plate.