Cathodic protection system for metallic structures

Chemistry: electrical and wave energy – Apparatus – Electrolytic

Reexamination Certificate

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Details

C204S196100, C204S196110, C204S196210, C204S196260, C205S724000, C205S730000, C205S734000, C029S722000, C029S745000, C029S746000

Reexamination Certificate

active

10729996

ABSTRACT:
An active cathodic protection system, the apparatus comprising a rectifier element with at least one electrical connection to a source of electrical current, the rectifier element associated with a direct current positive (+) output terminal for electrical connection of via an anode connector to a consumable anode, a direct current negative (−) output terminal for electrical connection via a cathode connector to the structure to be protected, grounding means for electrical grounding of the apparatus and anti-cross connection means for preventing the continuing flow of electrical current when the anode connector is associated with the negative output terminal and the cathode connector is associated with the positive output terminal.

REFERENCES:
patent: 3959664 (1976-05-01), Kosoegawa et al.
patent: 5415745 (1995-05-01), Pultan et al.
patent: 6224742 (2001-05-01), Doniguian
patent: 6315876 (2001-11-01), Delahoyde et al.
patent: 6346188 (2002-02-01), Shuster et al.
patent: 6461082 (2002-10-01), Smith
patent: 6471851 (2002-10-01), Bennett
patent: WO 91/11879 (1991-08-01), None

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