Jaw crusher
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United States of America Patent
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-
Dec 22, 1992
Issued Date -
N/A
app pub date -
May 1, 1992
filing date -
Jan 25, 1990
priority date (Note) -
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status (Latency Note)
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Abstract
A jaw crusher with a pass-through preventing device which prevents a flat plate-shaped object from passing through without being crushed. Also disclosed is a jaw crusher with a tooth plate structure which is capable of effectively crushing a non-rigid object, for example, a lump of asphalt, without causing such an object to stick to the area between a cheek plate and a fixed tooth plate or a movable tooth plate. The jaw crusher comprises a plurality of forks which are provided at the lower end of a crushing space to prevent a plate-shaped object from passing through the crushing space without being crushed, and a fork shaft which is provided with one end of each fork and which is rotatably provided on the crusher body. The movable tooth plate is provided with cutting projections. A plate-shaped object is first broken by the cutting projections and then crushed by intermediate projections.
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