Mixing bag or vessel having a receiver for a fluid-agitating element

An apparatus for mixing a fluid adjacent a stable support structure, comprising:

• a magnetic fluid-agitating element:
• a motive device adjacent the stable support structure for rotating the fluid-agitating element;
• and
• a bag for positioning adjacent the motive device and capable of receiving and holding the fluid, the bag including a first inwardly-projecting post for receiving and holding the fluid-agitating element at a home location when positioned in the bag and a receiver adapted for engaging the motive device and aligning the fluid-agitating element relative thereto.

An apparatus for mixing a fluid, comprising

• a magnetic fluid-agitating element;
• a bag capable of receiving and holding the fluid;
• and
• a rigid receiver connected to the bag, the receiver receiving and holding the fluid-agitating element at a home location.

A system for agitating a fluid, comprising:

• an at least partially magnetic fluid-agitating element;
• a vessel for receiving the fluid, the vessel including a flexible portion forming an upstanding sidewall and a rigid portion secured to the flexible portion and including a receiver for receiving and holding the fluid-agitating element at a home location in the vessel;
• and
• a motive device for at least rotating the fluid-agitating element.

A mixing tank assembly comprising:

• a side wall having an interior surface at least partially bounding a chamber;
• a floor disposed within or at the base of the chamber, the floor having an opening extending therethrough;
• a flexible bag disposed within the chamber so as to rest on the floor, the flexible bag bounding a compartment;
• a magnetic mixer disposed within the compartment;
• and
• a shaft having a first end for receiving the mixer and an opposing second end extending down through the opening in the floor.

A mixing tank assembly comprising:

• a first container including a lower portion having an opening;
• a second, collapsible container disposed within the first container;
• a magnetic mixer disposed within the second, collapsible container;
• and
• a shaft having a first end for receiving the magnetic mixer and an opposing second end extending through the opening.

A mixing tank assembly comprising:

• a support structure;
• a collapsible container resting on the support structure, said collapsible container having a lower portion;
• a magnetic mixer disposed within the collapsible container;
• and
• a shaft having a first end projecting through the lower portion of the collapsible container for receiving the magnetic mixer.

A system for agitating a fluid, comprising:

• an at least partially magnetic fluid-agitating element having an axis;
• a vessel for receiving the fluid, the vessel including a flexible sidewall portion and a rigid portion positioned adjacent a bottom surface of the vessel, the rigid portion comprising a first receiver for receiving and holding the fluid-agitating element at a home location;
• and
• a motive device adjacent the bottom surface for at least spinning the fluid-agitating element about the axis to agitate the fluid.

A mixing tank assembly comprising:

• a side wall having an interior surface at least partially bounding a chamber;
• a floor disposed within or at the base of the chanter, the floor having an opening extending therethrough;
• a flexible bag disposed within the chamber so as to rest on the floor, the flexible bag bounding a compartment and including a rigid receiver extending at least partially through the opening in the floor;
• and
• a rotatable magnetic mixer associated with die rigid receiver.

A mixing tank assembly comprising:

• a support structure;
• a collapsible container resting on the support structure, said collapsible container having a lower portion;
• a magnetic mixer disposed within the collapsible container;
• and
• a rigid receiver for receiving and holding the magnetic mixer, said rigid receiver having a first end projecting through the lower portion of the collapsible container.