Patent ID: 8844851
Filing Date: 2014-09-30
Classification: B02C

Abstract:
1. A crusher device comprising: a frame; a rotating mechanism positioned in the frame, the rotating mechanism being rotatable to crush material; a plurality of curtains, the curtains positioned adjacent to and spaced apart from the rotating mechanism to at least partially define a passageway along which material moves while being crushed, the plurality of curtains comprising a first curtain and a second curtain; the first curtain connected to the frame via a first cylinder; the first cylinder being moveable from a retracted position to an extended position; the first curtain connected to the second curtain via at least one pivotal connection; a second cylinder connected between the first curtain and the second curtain; and the second cylinder being retractable when the first cylinder is retracted to adjust spacing between the first and second curtains and the rotating mechanism, retraction of the second cylinder rotating the second curtain away from the rotating mechanism and toward the first curtain.