Electrolysis: processes – compositions used therein – and methods – Electrolytic material treatment – Metal or metal alloy
Reexamination Certificate
2011-05-31
2011-05-31
Bell, Bruce F (Department: 1759)
Electrolysis: processes, compositions used therein, and methods
Electrolytic material treatment
Metal or metal alloy
C205S731000, C205S734000, C205S735000, C205S740000, C205S725000, C204S196210, C204S196360, C204S196370, C204S196020, C204S196060
Reexamination Certificate
active
07951286
ABSTRACT:
A method is disclosed for using an impressed current cathodic protection (ICCP) system that supplies an electrical current such that a metallic structure (10) has a negative voltage of between 0.5 and 1.5 Volt relative to earth to power one or more electrical appliances (5), the method comprising: —providing one or more electrical appliances (5) which each have a pair of electrical contacts (1,2); —connecting one electrical contact (1) of each electrical appliance to the structure; and —connecting the other electrical contact (2) of each electrical appliance to earth, thereby providing electrical power to each of the electrical appliances. It is preferred that the electrical appliances (5) are equipped with one or more DC-DC power converters (6) which are configured to enhance an electrical input voltage of between 0.5 and 1.5 Volt to an electrical output voltage of between 3 and 5 Volt.
REFERENCES:
patent: 6715550 (2004-04-01), Vinegar et al.
patent: 2005/0258974 (2005-11-01), Mahowald
patent: 9003668 (1997-01-01), None
patent: 2003253479 (2003-09-01), None
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International Search Report dated Jan. 31, 2008 (PCT/EP2007/053870).
Dwars Sicco
Ubuane Christopher Ozemoya
Bell Bruce F
Hickman William E.
Shell Oil Company
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