Gyratory crusher having corrugation-like-seal
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United States of America Patent
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Sep 8, 1998
Issued Date -
N/A
app pub date -
Jan 21, 1997
filing date -
Mar 18, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A gyratory crusher having a frame with a lower frame portion, a crusher head, a mounting mechanism for pivotally and gyrationally mounting the crusher head on the lower frame portion such that the crusher head operably gyrates between a closed side setting and a corresponding open side setting, a seal mechanism for operably protecting the mounting mechanism. The seal mechanism includes a flexible member having an outer edge, sealingly connected to the crusher head, and an inner edge, sealingly connected to the lower frame portion by an outer bearing race secured to the inner edge, an inner bearing race secured to the lower frame portion, and bearing balls captured between the outer and inner bearing races. The flexible member may have a single wall structure with a corrugation-like configuration, or a double wall structure with an inflatable bladder therebetween.
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