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:
Nov. 06, 1979
Filed:
Sep. 12, 1977
Societe Nationale Elf Aquitaine (Production), Paris, FR;
Abstract
Apparatus and system for cathodic protection of a metal structure in the sea by sacrificial anodes. The apparatus has at least one anode of a first type for which the current flow is greater than 10 Amperes/meter.sup.2, with potentials on the order of -900 mV/ECS and has at least one anode of a second type for which the current flow is less than 6 Amperes/meter.sup.2, with potentials in the order of -900 mV/ECS, the absolute values of the decomposition potential under load of the anodes of the first and of the second type being greater (more negative) than the absolute value of the potential of the protected structure. Such a system can assure the protection of a metal structure in the sea for several dozen years.