Importance

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Abstract

A mill for effecting a reduction in size of a particulate in a particulate-containing substance wherein the mill includes a support structure, an elongated vessel rotatably mounted on the support structure about an axis of rotation as well as a drive motor therefor. The mill further includes an inlet port and an outlet port for allowing the particulate-containing substance to flow through the vessel structure. An elongate and generally cylindrical, hollow rotor body is provided and extends centrally of the vessel structure and along a majority of the length thereof. The rotor body is fixedly secured to the vessel structure and rotatable therewith. A plurality of cavities are disposed in and equally spaced about the cylindrical peripheral surface on the hollow rotor body so that each cavity opposes the inner surface of the vessel structure. Plural deflectors are equally spaced from each other and are fixedly oriented in the space between the rotor body and the inner surface of the vessel structure for deflecting a comminuting media in the vessel radially inwardly into the cavities only to be again flung radially outwardly, in response to a rotation of the vessel structure and the rotor body, into engagement with the fixed deflectors. All of the aforesaid cavities in the rotor body have a total volume approximately equal to the total volume of the plural deflectors. Further, all of the aforesaid cavities have at least a portion of an internal wall surface which is approximately an inverted image of an external radially inwardly facing side on each of the deflectors.

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First Claim