Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Treating process fluid by means other than agitation or...
Reexamination Certificate
2005-05-31
2005-05-31
Koehler, Robert R. (Department: 1775)
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Treating process fluid by means other than agitation or...
C205S148000, C205S291000, C205S292000, C205S770000, C204S232000, C204S233000, C204S234000, C204S237000, C204S252000, C204S263000, C204S275100, C204S295000
Reexamination Certificate
active
06899803
ABSTRACT:
In order to regulate the metal ion concentration in an electrolyte fluid serving to electrolytically deposit metal and additionally containing substances of an electrochemically reversible redox system, it has been known in the art to conduct at least one portion of the electrolyte fluid through one auxiliary cell provided with one insoluble auxiliary anode and at least one auxiliary cathode, a current being conducted between them by applying a voltage. Accordingly, excess quantities of the oxidized substances of the redox system are reduced at the auxiliary cathode, the formation of ions of the metal to be deposited being reduced as a result thereof. Starting from this prior art, the present invention relates to using pieces of the metal to be deposited as an auxiliary cathode.
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International Search Report in PCT/DE01/00748 dated Feb. 23, 2001.
Lamprecht Sven
Matejat Kai-Jens
Atotech Deutschland GmbH
Bonini, Jr. Frank J.
Earley III John F. A.
Harding Earley Follmer & Frailey
Koehler Robert R.
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