A hollow shaft impeller (100) having a hollow impeller housing (120), a magnet (108), an impeller cap (102), an impeller retainer (106), and a plurality of impeller blades (134). The impeller housing has a hub (130) that defines an interior volume (128) and an impeller bore that provides access to the interior volume. The magnet may be sized to be disposed within the interior volume. The impeller cap may be removably coupled to the hollow impeller housing proximate to the impeller bore. The impeller retainer may be removably coupled to the magnet and sized to be disposed within the interior volume. The plurality of impeller blades may project from the hub. Optionally, fins (140) may be disposed on each of the plurality of impeller blades.

The invention relates to a cartridge system with two containers (2a, 2b) respectively having an outlet connector (4a, 4b), and a common connection section for a mixer (1) having a positioning aperture (7), and with a static mixer (1) with inlet connectors (14a, 14b) and a positioning element (16). The connection section of the cartridge comprises a ring (5) having an inner thread (6) that surrounds the outlet connectors (4a, 4b), whereby the mixer (1) has an outer thread (11). Further, the invention relates to a static mixer (1) for a cartridge system of this type.

The invention relates to a cartridge system with two containers (2a, 2b) respectively having an outlet connector (4a, 4b), and a common connection section for a mixer (1) having a positioning aperture (7), and with a static mixer (1) with inlet connectors (14a, 14b) and a positioning element (16). The connection section of the cartridge comprises a ring (5) having an inner thread (6) that surrounds the outlet connectors (4a, 4b), whereby the mixer (1) has an outer thread (11). Further, the invention relates to a static mixer (1) for a cartridge system of this type.

The invention relates to a cartridge system with two containers (2a, 2b) respectively having an outlet connector (4a, 4b), and a common connection section for a mixer (1) having a positioning aperture (7), and with a static mixer (1) with inlet connectors (14a, 14b) and a positioning element (16). The connection section of the cartridge comprises a ring (5) having an inner thread (6) that surrounds the outlet connectors (4a, 4b), whereby the mixer (1) has an outer thread (11). Further, the invention relates to a static mixer (1) for a cartridge system of this type.

The invention relates to a delivery device having two containers (4a, 4b) that are connected with each other and a mixer (3). Preferably, the mixer can be connected with the containers (4a, 4b) by an outer thread (17). Thereby, the mixer has a coupling element (13), a mixer housing (11) rotatable relative to it and a mixing element (12) that is housed in the mixer housing (11).

A blender apparatus includes a cup cover, a bottom cover, a cup body and a blade assembly. The cup body includes an inner cavity. The cup body includes a first port above the inner cavity. The cup body includes a second port below the inner cavity. The first port is detachably connected to the cup cover. The blade assembly includes a blade and a motor and a blade housing. The blade assembly includes an operation state and a storage state. In the operation state, the blade of the blade assembly is inserted into the inner cavity through the second port of the cup body for cutting and mixing objects placed in the inner cavity.