Chemistry: electrical and wave energy – Processes and products – Electrophoresis or electro-osmosis processes and electrolyte...
Reexamination Certificate
2001-08-10
2010-02-16
Phasge, Arun S (Department: 1795)
Chemistry: electrical and wave energy
Processes and products
Electrophoresis or electro-osmosis processes and electrolyte...
C204S525000, C204S539000, C204S630000, C204S634000
Reexamination Certificate
active
07662267
ABSTRACT:
An improved apparatus and operating method related thereto for deionizing water to produce substantially pure water using electric field and ion exchange materials are disclosed, including embodiments incorporating one or more of the novel features of brine and electrode streams flowing in a direction counter-current to the stream being deionized, a filling of the brine stream with stratified ion exchange materials, a stream mixing feature for mixing the stream being deionized, a gas removal feature for removal of gases, a spiral-wound embodiment of an electrodialysis device according to the invention, and a method for determining the preferred operating current for electrodialysis systems according to this invention.
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Database WPI, Section Ch, Week 198233, Derwent Publications Ltd., London, GB; AN 1982-69793E, XP002413014 & SU 874 090 (LEBED NG), Oct. 25, 1981 abstract; figures.
Carson William W.
Grebenyuk Oleg
MacDonald Russell J.
McRae Wayne A.
Sims Keith J.
Andover-IP-Law
Ionics Incorporated
Phasge Arun S
Silverstein David
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