Gyratory crusher spider piston
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Aug 10, 2004
Grant Date -
Jul 11, 2002
app pub date -
Jan 11, 2001
filing date -
Jan 11, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A spider sleeve and seal apparatus for a gyratory crusher has upper and lower cylindrical sleeves disposed between the spider and a vertically slidable piston. Fixed o-rings are located between the sleeves and the spider, and moving seals are located in the piston. These seals prevent leakage from the hydraulic ring used to support the piston and shaft of the gyratory crusher.
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