US Patent Application for PARABOLIC VIBRATORY IMPACT MILL ...
Oct 25, 2012 · A parabolic vibratory impact mill is proposed which comprises a housing having an outer cone, an inner cone and a power-operated vibrator. The shells of the cones have working surfaces in the form of parabolic generatrices: in the bottom part, the concavity of the parabolae is oriented toward the axis of the mill; in the top part, the convexity of the parabolae is oriented toward the axis of ...
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