Fluid impellers for biocontainers, and bioprocessing units including the impellers and biocontainers, and methods of using the impellers, are disclosed.

A mixing system for mixing a liquid includes a first impeller segment having a first mount and a first mixing blade secured to the first mount and a second impeller segment having a second mount and a first mixing blade secured to the second mount, the second impeller segment being separate and discrete from the first impeller segment. One or more drive members are secured to the first impeller segment and the second impeller segment for concurrently rotating the first impeller segment and the second impeller segment about a rotational axis. The first impeller segment and the second impeller segment are secured to the one or more drive members so that a plane extending normal to the axis of rotation intersects with the first mixing blade of the first impeller segment and the first mixing blade of the second impeller segment.

A whisk is configured to attach to a stand mixer. The whisk includes a mounting socket at a top end of the whisk. The mounting socket extends along an axial direction from the top end of the whisk to a hub. The mounting socket is configured to attach to a shaft of the stand mixer. The whisk also includes a plurality of tines arrayed along a first portion and a second portion of a circumference of the hub, a first gap in a third portion of the circumference of the hub, and a second gap in a fourth portion of the circumference of the hub. The first and second gap extend between the first and second portion on opposing sides of the hub.

A liquid mixing system includes a support housing at least partially bounding a compartment. A mount is secured to the support housing. A drive motor assembly is configured to engage a drive shaft for moving the drive shaft within the compartment of the support housing. A four bar linkage system extends between the mount and the drive motor assembly, the four bar linkage system being movable between a first position wherein the drive motor assembly is disposed at a first elevation and a second position wherein the drive motor assembly is disposed at a second elevation that is different from the first elevation.

A method of mixing a fluid includes at least partially unfolding a collapsible bag bounding a compartment, the collapsible bag containing in the compartment at least a portion of an elongated drive line or drive shaft and an impeller secured to the drive line or drive shaft, the impeller including a plurality of impeller blades that are pivotable relative to the drive line or drive shaft, at least one of the plurality of impeller blades being in a collapsed position. A fluid is delivered into the compartment of the collapsible bag. The drive line or drive shaft is then rotated so as to rotate the impeller within the compartment and mix the fluid therein, the at least one of the plurality of impeller blades pivoting from the collapsed position to an expanded position as the impeller is rotated within the compartment.

A dynamic mixer head has a cover, a housing, and a rotor. The cover has a first base board, two inlets, and a holding cylinder. A rotor holding channel is formed in the holding cylinder and a sealing portion protrudes from an inner wall surface of the rotor holding channel. The housing is mounted on the cover and has a second base board, a mixing cylinder, and an inner channel. The inner channel is formed in the mixing cylinder and fluidly communicates with an outlet. The rotor is rotatably disposed in the inner channel and has a rotor axle and a mixing rod. The rotor axle is disposed through the rotor holding channel, contacts and is surrounded by the sealing portion. The mixing rod has multiple first vanes. The dynamic mixer head does not need two sealing structures and tight fitting of the rotor and the holding cylinder.

The present disclosure relates to a blender having blades whose orientation angle is changeable, even while the blender is in operation. The blender 100 includes a housing 110 with inlets (140a, 140b) to allow inflow of ingredients and an outlet (140c) to allow outflow of blended ingredients. The blender 100 incorporates an external shaft 122 with the blades 123 rotatably coupled to it, and an internal shaft 121 inside the external shaft 122. The blender 100 incorporates a first driving unit 130 to rotate the external shaft 122 and blades 123 about a direction along a length of the housing 110 to allow blending of the ingredients. The internal shaft 121 having engaging means coupled to back of the blades 123 such that a linear displacement of the internal shaft 121 using a second driving unit 121, enables change in orientation of the blades 123.

A stirring device for stirring a biphasic fluid has a stirring shaft that can be mounted with a mounting end into a stirring drive. The stirring device also has a first paddle that is arranged in a rotationally fixed manner at or near a stirring end of the stirring shaft that is opposite to the mounting end, and further has a second paddle that is arranged in a rotationally fixed manner at the stirring shaft in between the mounting end and the first paddle. The second paddle is mounted with respect to the stirring shaft in such a manner that it can be displaced in an axial direction along the stirring shaft, which allows for a change of an axial distance between the second paddle and the mounting end of the stirring shaft.

Provided herein is a stirring assembly for a stirring cup, including: a transmission member with the bottom thereof connected to an output end of an electric motor; a rotating shaft with one end thereof fixedly connected to the top of the transmission member; a bearing, where the other end of the rotating shaft can penetrate through the center of the bearing and be fixedly connected to the bearing; a fixing bin, where the fixing bin is internally provided with an accommodating space for placing the transmission member and the bearing, and the top of the fixing bin is provided with a first hole; and a stirring member, where the other end of the rotating shaft can penetrate through the first hole to be connected to the stirring member.

Provided herein is a stirring assembly for a stirring cup, including: a transmission member with the bottom thereof connected to an output end of an electric motor; a rotating shaft with one end thereof fixedly connected to the top of the transmission member; a bearing, where the other end of the rotating shaft can penetrate through the center of the bearing and be fixedly connected to the bearing; a fixing bin, where the fixing bin is internally provided with an accommodating space for placing the transmission member and the bearing, and the top of the fixing bin is provided with a first hole; and a stirring member, where the other end of the rotating shaft can penetrate through the first hole to be connected to the stirring member.