Abstract: The present invention provides a paint container and colorant injector apparatus that includes a paint container that retains a base paint therein and provides an opening allowing access to the base paint. An injector assembly couples with the paint container and is operable to locally disperse colorant into the base paint. Such an apparatus is employed in a method for dispersing a colorant throughout a base paint. The method includes providing a base paint in a container, locally dispersing colorant in the base paint, thereafter sealing the container and shaking the container to further disperse the colorant in the base paint throughout the remainder thereof to effect uniform coloring of the base paint.

Abstract: The present invention provides a paint container and colorant injector apparatus that includes a paint container that retains a base paint therein and provides an opening allowing access to the base paint. An injector assembly couples with the paint container and is operable to locally disperse colorant into the base paint. Such an apparatus is employed in a method for dispersing a colorant throughout a base paint. The method includes providing a base paint in a container, locally dispersing colorant in the base paint, thereafter sealing the container and shaking the container to further disperse the colorant in the base paint throughout the remainder thereof to effect uniform coloring of the base paint.

Abstract: Material is comminuted in a substantially dry state in a chamber (4) as a result of agitation by a rotor. During the process, gas is admitted to the chamber (4) through a foraminous base (8) to flow upwardly in a uniform manner across the cross-section of the chamber. Pulses of gas are directed periodically at the material through inlets (15) to prevent agglomeration of the material. The pressure of the gas admitted through the inlets (15) is higher than that admitted through the foraminous base (8). Surface active agents may be added to the material, also to prevent agglomeration, as well as, or instead of the use of pulsed gas.