Gravity-contact sacrificial anode
AssigneePetroleo Brasileiro S.A. - Petrobras
InventorEdson Gois De Medeiros
Life of this patent
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Abstract
The invention consists of a new sacrificial anode design that eliminates welding and reduces fixing time. This new anode design comprises a metallic appendix, which can be in the form of a hook, in order to hold and provide electrical contact between the anode and the jacket, or other part of the structure that is desired to be protected. In the contact region of the hook there will be a pointed device (3) to allow full electrical contact between the anode and the jacket element. Therefore, this electrical contact will be made by the anode's own weight, which may be added with a galvanically inert ballast to guarantee the contact until the end of the anode's lifetime.
Claims6
A gravity-contact sacrificial anode comprising:
- an accessory for anchoring and electrically contacting a sacrificial anode to a structure supporting element;
- an electrical contact pin providing electrical contact between the sacrificial anode and the structure supporting element due at least to the sacrificial anode's own weight;
- a hook weld;
- an eyebolt;
- and
- a ballast fixed to the eyebolt on a side of the sacrificial anode opposite the hook weld.
Dependencies are inferred from the claim text.