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US 4,543,172 AGranted
High speed plating apparatus
OwnerToshiyuki Suzuki, Hiroshi Tsukakoshiinventors
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Abstract
High speed plating apparatus in which a cylindrical electrode structure has fitted into it a metal tube. The metal tube has a higher melting point than the electrode, is corrosion resistant to plating liquid and protects the inner surface of the electrode.
Claims7
In a high speed plating apparatus having a plating chamber equipped with electrodes the improvement comprising:
- one of said electrodes being cylindrical to form a cylindrical plating chamber;
- a metal tube fitted into said cylindrical electrode between the inner surface of said cylindrical electrode and said plating chamber formed thereby;
- said metal tube being comprised of an alloy of platinum having a higher melting point than said electrode and being corrosion resistant to a plating liquid whereby said metal tube covers and protects the inner circumferential surface of said one electrode.
Dependencies are inferred from the claim text.