Device for comminuting feed material
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United States of America Patent
Stats
-
Apr 27, 2004
Grant Date -
Apr 25, 2002
app pub date -
Aug 24, 2001
filing date -
Aug 29, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device for comminuting feed material has a rotary blade ring rotating about an axis of rotation. A comminution chamber is enclosed by the rotary blade ring and receives the feed material in an axial direction parallel to the axis of rotation. A counter abutment projects in the axial direction into the comminution chamber. The rotary blade ring is moveable in a radial advancing direction against the counter abutment and applies a pressing force relative to the counter abutment to effect comminution of the feed material in a working position of the counter abutment. The counter abutment has an effective surface facing the feed material and the effective surface is supported so as to be moveable such that, upon surpassing a predetermined value of the pressing force, at least the effective surface performs an escape movement relative to the rotary blade ring in an escape direction.
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