Chemistry: electrical and wave energy – Processes and products – Electrophoresis or electro-osmosis processes and electrolyte...
Reexamination Certificate
2006-11-14
2006-11-14
Phasge, Arun S. (Department: 1753)
Chemistry: electrical and wave energy
Processes and products
Electrophoresis or electro-osmosis processes and electrolyte...
C204S516000, C204S648000
Reexamination Certificate
active
07135102
ABSTRACT:
A system and method for dewatering particulate materials employs an improved dewatering probe generally including a single non-conducting pipe having a plurality of holes or slots, an anode mounted on the pipe adjacent one end of the pipe, and a cathode mounted on the pipe adjacent the opposite end of the pipe. The pipe serves as both a sonde for mounting the anode and cathode and as a well for extracting water that collects around the outside of the pipe and flows into the interior of the pipe through the holes or slots via gravitational and electro-osmotic forces. A pump may be used to extract both collected water and accumulated electrolytic gases from the pipe's interior. In embodiments, an array of guide electrodes is mounted on the pipe in addition to the anode and the cathode in order to deflect the major current flow out into the body of surrounding particulate materials. The guide electrodes also facilitate rapid depolarization of the probe. An array of probes according to the present invention may be employed as a system to dewater a volume of particulate.
REFERENCES:
patent: 4110682 (1978-08-01), Tabanou
patent: 4367132 (1983-01-01), Bell et al.
patent: 5015351 (1991-05-01), Miller
patent: 6372109 (2002-04-01), Bjerke et al.
Hock Vincent F.
Malone Philip G.
McInerney Michael K.
Morefield Sean W.
Weiss, Jr. Charles A.
Felder Scott A.
Landau Nicholas J.
Phasge Arun S,.
The United States of America as represented by the Secretary of
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