Patent ID: RE40442

Claim:
Apparatus for comminuting solid waste material comprising: drive means for providing rotary motion, a pair of cutter stacks with cutter elements of one stack interleaved with cutter elements of the other, and gear means to transmit the rotary motion of said drive means into counter-rotation of cutter elements of one stack with cutter elements of the other, each of said cutter stacks comprising a central shaft journaled for rotation proximate each end, a seal-bearing assembly at each end comprising an end housing, a pair of insertable pre-assembled seal- bearing elements mountable in each of said end housings, one seal- bearing element having a thru-hole for journaling a first shaft for rotation and a second seal- bearing element having a thru-hole for journaling a second shaft for rotation and a seal for each of said first and second seal- bearing elements to provide fluid isolation between said seal- bearing element and said end housing.