A stirring device for a powder tank of an apparatus for manufacturing a three-dimensional object. The stirring device is configured to rotate within the powder tank about an axis of rotation, and comprises a base plate and a strut. The strut extends from the base plate and is arranged to extend into the powder tank forming an obtuse angle with the outer edge of the base plate

A mixing paddle specifically designed to produce pastry dough is disclosed. The mixing paddle is comprised of a shaft, a rim, a first plurality of parallel blades and a second plurality of parallel blades. The shaft bisects the rim, creating a first side and a second side. The first plurality of parallel blades is perpendicular to the second plurality of parallel blades.

A mixing paddle specifically designed to produce pastry dough is disclosed. The mixing paddle is comprised of a shaft, a rim, a first plurality of parallel blades and a second plurality of parallel blades. The shaft bisects the rim, creating a first side and a second side. The first plurality of parallel blades is perpendicular to the second plurality of parallel blades.

A mixing container with an internal mixing blade has an extraction funnel, a main housing, a rotatable base cap, a mixing blade and a gear mechanism. The extraction funnel has a first end with a maximum diameter and narrowing to a second end of a minimum diameter at a neck portion. The main housing includes a mixing chamber. The rotatable base cap with an internal gear is attached to and is rotatable relative to the main housing. The mixing blade has a plurality of prongs extending from a shaft. The prongs are in the mixing chamber and the shaft extends through an opening in the main housing to inside the rotatable base cap. The gear mechanism has at least one gear, each of the at least one gears is connected to or intermeshed with the internal gear of the base cap and the gear of the shaft end.

Provided are a refractory article, an anti-redox coating composition, and a method of manufacturing the refractory article. The refractory article includes: a platinum(Pt)-based substrate; and a coating layer for preventing a redox reaction on a surface of the Pt-based substrate, wherein the coating layer for preventing a redox reaction includes on an oxide basis SiO.sub.2 in an amount of about 40 wt % to about 70 wt %, Al.sub.2O.sub.3 in an amount of about 20 wt % to about 52 wt %, B.sub.2O.sub.3 in an amount of about 3 wt % to about 6 wt %; and CaO in an amount of about 2.4 wt % to about 4.8 wt %.

Provided are a refractory article, an anti-redox coating composition, and a method of manufacturing the refractory article. The refractory article includes: a platinum(Pt)-based substrate; and a coating layer for preventing a redox reaction on a surface of the Pt-based substrate, wherein the coating layer for preventing a redox reaction includes on an oxide basis SiO.sub.2 in an amount of about 40 wt % to about 70 wt %, Al.sub.2O.sub.3 in an amount of about 20 wt % to about 52 wt %, B.sub.2O.sub.3 in an amount of about 3 wt % to about 6 wt %; and CaO in an amount of about 2.4 wt % to about 4.8 wt %.

A mixing agitator, for industrial use in mixing processes, that overcomes disadvantages associated with glass coated mixing agitators in the prior art. In particular, the mixing agitator includes a glass coated metal hub radially symmetrical about a central axis. The hub is at least partially embedded within a fluorinated polymer. The fluorinated polymer extends beyond the hub and forms agitator blades that may be reinforced. The hub has a centrally located receiving portion for receiving a drive shaft for rotating the agitator. The agitator is lighter weight than prior art glass coated steel agitators yet still has excellent chemical resistance and good temperature resistance. The agitator of the invention reduces likelihood of glass damage and permits agitator blade shapes not useable by glass coated agitators in the prior art. The invention also includes a mixing apparatus incorporating the hub and a method for mixing using the agitator.

A mixing agitator, for industrial use in mixing processes, that overcomes disadvantages associated with glass coated mixing agitators in the prior art. In particular, the mixing agitator includes a glass coated metal hub radially symmetrical about a central axis. The hub is at least partially embedded within a fluorinated polymer. The fluorinated polymer extends beyond the hub and forms agitator blades that may be reinforced. The hub has a centrally located receiving portion for receiving a drive shaft for rotating the agitator. The agitator is lighter weight than prior art glass coated steel agitators yet still has excellent chemical resistance and good temperature resistance. The agitator of the invention reduces likelihood of glass damage and permits agitator blade shapes not useable by glass coated agitators in the prior art. The invention also includes a mixing apparatus incorporating the hub and a method for mixing using the agitator.

The mixing tool is for opening a container and for mixing a product contained in the container. The tool includes a mixing device which is shaped to mix the product contained in the container. A shank extends along a length from the mixing device to an end face. A channel is formed into the end face for receiving an edge of a lid of the container to allow the tool to be used to pry the lid off of the container.

A swirl generating pipe element for providing a rotational movement to a fluid, comprising a reluctance motor and a pipe section (9), wherein the reluctance motor comprises a stator element (1) and a rotor element (2); the stator element comprises multiple stator poles (3); the rotor element comprises a vane assembly having multiple rotor poles (4) and arranged to rotate around a rotor shaft (7) situated along the centerline of the pipe section (9), and each rotor pole has a first end (5) rotatably connected to the rotor shaft (7) and a second end (6) arranged close enough to one of the multiple stator poles (3) for a magnetic polarization to be induced in the rotor pole; and the pipe section (9) comprises a wall, having an external and an internal circumferential surface, and an inlet and an outlet for a fluid; wherein the stator element (1) and the rotor element (2) is separated by the wall (8) of the pipe section (9), and the multiple stator poles (3) are arranged at the external circumferential surface of the pipe section, and the second end (6) of the multiple rotor poles (4) are arranged adjacent to the internal circumferential surface of the pipe section, such that the vane assembly may provide a rotational movement to a fluid entering the inlet (10) of the pipe section (9).