Comminution device

B - Operations – Transporting – 02 – C

Patent

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B02C 18/18 (2006.01) B02C 18/16 (2006.01) B02C 23/04 (2006.01) B02C 23/16 (2006.01)

Patent

CA 1106819

ABSTRACT OF THE DISCLOSURE A comminution device comprising a support having at least one elongated stationary knife portion, a rotor having a central shaft carried by said support for rotation about a central axis, said rotor having axially spaced portions intermediate the ends of said shaft which extend transversely outwardly with respect to said shaft, at least one elongated knife means secured to an outer segment of each of said axially spaced portions and extending along said central axis in transverse spaced relationship to provide an opening between said knife means and said shaft, said knife means having a leading cutter edge movable during rotation of said rotor through a circular orbital path in such proximity to said stationary knife portion to fragmentize material therebetween, said knife means having with respect to said central axis a radially outermost extent which extends in a chordal direction with respect to said orbital path from said cutter edge to a trailing edge spaced from said cutter edge, said trailing edge being located in such proximity to said orbital path to provide a minimum space between said trailing edge and said stationary knife portion to permit said trailing edge to clear said stationary knife portion during rotation of said rotor, said knife means having a trailing end surface extending inwardly with respect to said rotor, and said rotor having a support surface engageable with substantially the entire extent of said trailing end surface.

273876

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