Abstract: A blast chamber having a plurality of blast assemblies, with each blast assembly comprised of a clocking mechanism having a particular geometric shape, a rotor assembly, and a power source. Each rotor assembly is capable of rotating about a center line axis and has a plurality of spaced-apart rotors. At least one rotor includes a generally central opening. The blast chamber further includes a grit intake source for introducing grit into each clocking mechanism and a power source to impart a rotational force to the each rotor assembly. The blast chamber also includes a blast area adjacent to each blast assembly. Grit is gravity fed from the grit intake source and into the clocking mechanism and directed via the particular geometric shape of the clocking mechanism while the rotors are rotating.

Abstract: A mixer of fluids, such as paint or resins, having a shaft capable of rotating about a longitudinally-extending, centerline axis of the shaft and at least one rotor assembly that is fixedly connected to and axially-aligned of the shaft. The shaft rotates about its centerline axis as well as each rotor assembly. Each rotor assembly consists of a plurality of spaced apart rotors. Each rotor has substantially uniform upper and lower surfaces and generally smooth and uniform edges. In preferred form, each rotor is a smooth disk that may be flat, wavy, concave, convex, dimpled, or tilted in shape.