Abstract: Various embodiments relate to an aeration device for a bioprocessing installation, in particular a bioreactor, comprising a housing, wherein the housing comprises one or more aeration channels in its interior, wherein the housing further comprises one or more gas inlet ports, via each of which a gas can be introduced into at least one aeration channel of the housing, and wherein the housing further comprises a plurality of gas outlet ports, via each of which the gas can be discharged from the respective aeration channel to the outside of the aeration device. It is proposed that the aeration device is configurable with respect to a predetermined discharge of gas via the gas outlet ports.

Abstract: A bioreactor has a stirrer shaft that is driveable by a drive and on which a stirrer element is positioned. The position of the stirrer element is determined by a stirrer installation aid. The stirrer installation aid has a free end with an abutment surface on which the free end of the stirrer element abuts. The stirrer installation aid is designed as a sleeve that comprises a slot extending between the axial ends of the sleeve. The slot is delimited by opposite flanks of a wall, and the sleeve is placed on the stirrer shaft. The stirrer installation aid can be pulled off laterally from the stirrer shaft. A method for installing the stirrer element on the stirrer shaft arranged in the bioreactor also is provided.

Abstract: A device and a method for adjusting stirring blades on a stirring blade receptacle of a stirrer, wherein the stirring blades can be fixed with a stirring blade axis in receiving bores, which are arranged transversely to an axis of rotation and are a part of the stirring blade receptacle, at intended predetermined angle of attack relative to a virtual plane that is arranged transversely to the axis of rotation of the stirrer. An associated device body is provided with a receiving element for receiving the stirring blade receptacle with unfixed stirring blades. A stop is arranged on the device body for each lower face, which faces the receiving element and is a part of the stirring blades, outside the respective stirring blade axis. Each respective stirring blade is then brought into abutment against its associated stop, to place it into the predetermined angle of attack.

Abstract: A bioreactor has a stirrer shaft that is driveable by a drive and on which a stirrer element is positioned. The position of the stirrer element is determined by a stirrer installation aid. The stirrer installation aid has a free end with an abutment surface on which the free end of the stirrer element abuts. The stirrer installation aid is designed as a sleeve that comprises a slot extending between the axial ends of the sleeve. The slot is delimited by opposite flanks of a wall, and the sleeve is placed on the stirrer shaft. The stirrer installation aid can be pulled off laterally from the stirrer shaft. A method for installing the stirrer element on the stirrer shaft arranged in the bioreactor also is provided.

Abstract: A DC machine, particularly a DC motor for use in a motor vehicle, includes a stator, a rotor that is supported rotatably in a pole housing having a commutator, and having a brush-holder support, made substantially of plastic, for fixing at least two brushes and further components. The brush-holder support has a device for improving the positioning of the components situated on or at it relative to the rest of the machine and/or for shortening the tolerance chain of the machine, in particular, a longtime stabilization of the overall equipment being also achieved.

Abstract: The invention involves a massage device with moving massage cams. In order to achieve an especially good massaging kneading action of the cams, it is proposed here to provide the massage cams on the ends of oscillating rockers, which are arranged in at least one pair and next to each other, and which can be driven offset in phase from each other.

Abstract: The invention involves a massage device with moving massage cams. In order to achieve an especially good massaging kneading action of the cams, it is proposed here to provide the massage cams on the ends of oscillating rockers, which are arranged in at least one pair and next to each other, and which can be driven offset in phase from each other.