Inter digitating stator and rotor teeth on mating conical surfaces

Abstract From the Canadian patent

Abstract of the Invention Mixing apparatus includes a rotor having at least one rotor-surface comprising a non-cylindrical surface of revolution about the rotor shaft axis and a stator having at least one stator surface which is substantially reciprocal in shape to the rotor surface. The rotor and stator surfaces have pluralities of mixing teeth attached to and projecting outwardly from these surfaces such that the teeth on the rotor surfaces intermesh with those on the stator surfaces. These mixing teeth may be tapered preferably on both their circumferential and radial sides.