A weight-volume mixing color matching method, reclamation mechanism and automatic color mixer for automobile refinishing paintings are discussed. The method comprises (1) finding out an automobile information ID card printed with a color number on an automobile body to be refinished, finding out a color code of the automobile body or getting a close color card code through comparison, and finding out a weight formula of the refinishing paints to be used through a reader or a computer color-matching system; or using a spectrophotometer to detect coatings of the automobile body to be refinished at a position where a surface of the coatings is complete, and outputting a weight formula of the refinishing paints after calculation; and (2) converting the weight formula of the refinishing paints into a corresponding volume formula of the refinishing paints according to a measured specific gravity of a color masterbatch.

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.

An apparatus generates truly random numbers. The apparatus includes a container that is at least partially filled with a fluid (e.g., water or air). The apparatus also includes objects (e.g., dice) suspended freely in the fluid. The apparatus includes agitators configured to stir the fluid, and cameras configured to capture images of the objects. When the agitators stir the fluid, the objects move freely (e.g., move with the created currents) in the fluid in the container. The apparatus also includes a random number generation circuit coupled to the cameras. The random number generation circuit is configured to generate random numbers based on the images captured by the cameras.

Disclosed is a dissolution mixer, which includes: a dissolution bath configured to accommodate a powder and a solvent for dissolving the powder; a powder input unit located at an outer side of the dissolution bath; an impeller installed to be rotatable inside the dissolution bath; and an anchor located inside the dissolution bath and having a passage of the powder inputted by the powder input unit and a powder spouting hole connected to the passage.

The sealing performance of a stirring device and the abrasion resistance of a seal are improved. A stirring device includes a stirring tank that defines a stirring chamber; a plurality of stirring blades that are disposed in the stirring chamber; a shear blade drive shaft that extends from a lower side of the stirring tank to the stirring chamber and rotationally drives at least one shear blade among the plurality of stirring blades; and a fixed ring and a rotating ring that is disposed radially outside the shear blade drive shaft and seals between the stirring tank and the shear blade drive shaft. A sealing surface of the mechanical seal structure is formed at the same height as or above a lowermost portion of the stirring chamber.

A method for mixing a fluid includes: dispensing a first volume of a fluid into a flexible container, the flexible container being at least partially disposed within the chamber of a support housing; repeatedly moving the support housing and the flexible container contained therein so as to mix the first volume of fluid within the flexible container; adding further fluid into the flexible container after moving the support housing to form a second volume of fluid; and manipulating a mixing element within the flexible container so as to mix the second volume of fluid.

Attrition mills and propeller shaft assemblies therefor are described having features for enhanced installation and maintenance. Some embodiments include propellers having enhanced material processing characteristics.

A chemical mixer tool for use in a storage drum is described. The chemical mixer tool typically comprises a mixer housing assembly in which one end of a mixer shaft is secured, the distal end of the mixer shaft having at least one collapsible impeller assembly removably attached thereon. The chemical mixer tool is configured to be removably secured to the top portion of the storage drum, with the distal end of the mixing shaft extending into the interior of the storage drum.

A mixer support assembly for use in an integrated cover and mixer apparatus and anaerobic digester system incorporating same provided. The digester system includes a tank with an integrated cover and mixer apparatus which provides a completely or substantially gas tight enclosure for the collection of biogas. The integrated cover and mixer apparatus includes a cover, a mixer, and a mixer support assembly for supporting the mixer. The mixer support assembly includes a float ring and a support body that is selectively removable from the float ring. The support body is attached to the float ring by way of a clamping arrangement.

Cosmetic blending devices for producing a cosmetic liquid from a solid-shell cosmetic ingredient capsule. The cosmetic blending devices include a lid, a base, a blending element configured to blend the capsule, and a drive mechanism configured to actuate the blending element. The cosmetic blending device may include a thermal element configured to change a temperature of the capsule. The thermal element may melt the capsule. The solid-shell cosmetic ingredient capsule comprises a shell defining an enclosed inner volume, and cosmetic material included in the enclosed inner volume. Methods of using the cosmetic blending devices comprise placing the solid-shell cosmetic ingredient capsule into the cosmetic blending device and blending the capsule to produce the cosmetic liquid. Methods of forming the solid-shell cosmetic ingredient capsule comprise forming a portion of the shell, adding the cosmetic material to the portion of the shell, and forming the remaining portion of the shell.