A mixing apparatus and system includes a hub, a plurality of blades, and a respective hinge for each blade to pivotally secure each blade to the hub. Each hinge including a lock having a tab and a detent to secure the respective blade in an operating conformation.

A fluid heating system includes a tank assembly having an interior surface bounding a chamber, the tank assembly including a sidewall encircling the chamber and extending between a first end and an opposing second end, the first end bounding an opening to the chamber, and a lid movable between a first position wherein the opening to the chamber is exposed and a second position wherein the lid is disposed over the opening. A collapsible bag is removably disposed within the chamber of the tank assembly, the collapsible bag bounding a compartment adapted to hold a fluid. A mechanism is provided for controlling the temperature of fluid within the collapsible bag when the collapsible bag is positioned within chamber of the tank assembly.

A fluid mixing system includes a support housing having an interior surface bounding a chamber. A flexible bag is disposed within the chamber of the support housing, the flexible bag having an interior surface bounding a compartment. An impeller is disposed within the chamber of the flexible bag. A drive shaft is coupled with the impeller such that rotation of the drive shaft facilitates rotation of the impeller. A drive motor assembly is coupled with the draft shaft and is adapted to rotate the drive shaft. An adjustable arm assembly is coupled with the drive motor assembly and is adapted to move the drive motor assembly which in turn moves the position of the drive shaft and impeller. An electrical controller can control movement of the adjustable arm.

A mixing system typically for use in a container for mixing its contents, the mixing system including a cap unit, an extension unit and a magnetic mixing unit that is attached to the cap unit by the extension unit. The magnetic mixing unit can be folded to permit insertion and/or removal of the system via a mouth of the container. The extension unit and magnetic mixing unit connect via a hinge formed by upper and lower hinge portions that meet at a pivot point. The hinge portions extend from the pivot point along a first axis. The magnetic mixing unit includes a first magnetic elongate member that extends from the lower hinge portion along a second axis that is substantially perpendicular to the first axis, and a second magnetic elongate member that extends from the lower hinge portion along the second axis in the opposite direction relative to the first elongate member. The magnetic member(s) may be provided by a plastic coated magnetic stir bar.

An automated system associates an agitator with a respective container for containing fluid, such as paint. The system includes a plurality of agitators; a storage area where the plurality of agitators are arranged; a moving device for moving the agitators at least between the storage area and the container; and a control system for controlling and coordinating the operations of the system. The agitators include a locking mechanism for removably fixing the agitator to the respective container.

A child-friendly mixing apparatus for mixing various food substances is disclosed. The mixing apparatus includes a container with an opening, a lid that fits into the opening, and a mixing assembly. The lid includes a centrally located hole that has curved and/or sloped sides. The mixing assembly includes a housing, a motor within the housing, a mixing attachment that is rotated by the motor, and at least one button that turns the motor on and off. The mixing attachment fits through the lid hole and the lower end of the mixing assembly rests against the curved sides of the lid hole. The button is located on the portion of the mixing assembly that rests against the curved sides of the lid hole, and is automatically actuated when the mixing assembly is put in its operating position. A mixing kit is also disclosed, the mixing kit including a straw adapter and a measuring spoon in addition to the mixing assembly,

Described are systems and methods of mixing a liquid in a container, while liquid is being added or removed from the container, and with control of the speed of a mixing device that mixes the liquid to prevent an undesired mixing effect such as splashing, formation of a vortex, foaming, and vibration of a shaft of a mixing device used to mix the liquid.

A fluid mixing system includes a flexible bag having a first end, an opposing second end, and an interior surface bounding a compartment. A first rotational assembly includes a first casing mounted to the first end of the flexible bag and a first hub rotatably mounted to the first casing. A second rotational assembly includes a second casing mounted to the second end of the flexible bag and a second hub rotatably mounted to the second casing. An elongated member has a first end coupled with the first hub and an opposing second end coupled with the second hub, the connector being flexible and having a uniform flexibility along its entire length. A first impeller is mounted to the connector.

A milk-whipping device is disclosed. The device includes a heating base, a cylindrical container for the milk which rests on the base and which has a thermal exchange, a sealing closing flange, an impeller inserted in the container to produce an emulsifying effect on the milk; and a pair of connecting arms which can be snap-actuated. The connecting arms are revolvingly constrained to the base and extend along the lateral skirt of the container until hooking onto the closing flange.