Imperforate bowl: centrifugal separators – Rotatable bowl – Including driven material-moving means therein
Reexamination Certificate
2011-03-08
2011-03-08
Cooley, Charles E (Department: 1774)
Imperforate bowl: centrifugal separators
Rotatable bowl
Including driven material-moving means therein
C494S067000, C494S084000
Reexamination Certificate
active
07901343
ABSTRACT:
The present invention provides a self-cleaning drying centrifuge for removing fluid from a concentrated particulate-filled fluid and peeling mostly dried particulate (solid) material from the centrifuge. In some embodiments, a high-efficiency centrifuge performs an initial separation and concentration of small particles from a contaminated fluid, and outputs a clarified fluid for reuse, and periodically purges concentrated particulates with high fluid content. The purged concentrate is then fed into the present invention's drying centrifuge, which substantially reduces the remaining fluid content. In some embodiments, the drying centrifuge is periodically stopped and one or more internal blades (peelers) are rotated around the inner wall of the drying centrifuge bowl to peel the accumulated solids, which drop into a collection container. In some embodiments, partial peelers are arranged in a balanced configuration, but each peel portions of the bowl not peeled by others, to reduce the brake size needed to hold the bowl.
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Dudrey Denis J.
Gehrking James N.
Gorham Adelbert
Jorgenson Ronald L.
Spears Rodger I.
Advanced Products Laboratories, Inc.
Cooley Charles E
Lemaire Charles A.
Lemaire Patent Law Firm, P.L.L.C.
Rixen Jonathan M.
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