The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 31, 2011
Filed:
Apr. 20, 2007
Sicco Dwars, Chester, GB;
Christopher Ozemoya Ubuane, Rijswijk, NL;
Sicco Dwars, Chester, GB;
Christopher Ozemoya Ubuane, Rijswijk, NL;
Shell Oil Company, Houston, TX (US);
Abstract
A method is disclosed for using an impressed current cathodic protection (ICCP) system that supplies an electrical current such that a metallic structure () has a negative voltage of between 0.5 and 1.5 Volt relative to earth to power one or more electrical appliances (), the method comprising: —providing one or more electrical appliances () which each have a pair of electrical contacts (); —connecting one electrical contact () of each electrical appliance to the structure; and —connecting the other electrical contact () of each electrical appliance to earth, thereby providing electrical power to each of the electrical appliances. It is preferred that the electrical appliances () are equipped with one or more DC-DC power converters () 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.