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US 2003/0196912 A1Published application
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AssigneeNone recorded
InventorGlen E. Morgan
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AssigneeNone recorded
InventorGlen E. Morgan
Estimating the term…
A sacrificial electrode system for cathodically protecting an iron and/or steel object against corrosion comprising of a sacrificial anodic material containing, but not limited to, zinc, magnesium, aluminum or a mixture of these materials, with a magnet, preferably of the ceramic type, coupled with a cap plate, embedded into the sacrificial anode material so that advantage can be taken of the magnetic flux for transfer of electrons from the anode material to the object being protected, the unit is affixed to the object being protected by use of an electrically conductive adhesive. The electrical connection is established via the combination of ceramic magnet and electrically conductive adhesive. The magnet is magnetized in the direction of its thickness and the conversion of Fe2O3 into Fe3O4 us furthered by the use of the electrically conductive adhesive and the magnet with cap plate.
A method of cathodically protecting a ferrous metal object against corrosion, comprising the steps of providing a magnet means having a ceramic magnet portion embedded into. Electrically conductive material having an equal or more negative potential than the object to be protected to the magnet means in a manner such that said electrically conductive adhesive constitutes the part of said magnet means which contacts the object to be protected. Mounting on and electrically connecting to sacrificial anode which constitutes said protective electrode and placing said magnet means with the protected object against which the object is to be protected by placing a surface of the anode in contact with the object is to be protected and the magnet means to the object to be protected and the magnet means does not accelerate the corrosion of the object to be protected after the protecting electrode is consumed.
A method of attaching a sacrificial anode by means of an electrically conductive adhesive while enhancing the cathodic protection process through the use of a magnet embedded into the sacrificial anode utilizing the beneficial properties of the magnet in a new and unique way.
A method of protecting objects that have been formally overlooked in the use of passive cathodic protection.
Dependencies are inferred from the claim text.
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Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto: electrodes…
Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto: means for…
Non-mechanical removal of metallic material from surface
Term end not estimated
The present invention relates to an electrode system for protecting a metal object against corrosion.
The invention relates particularly to electrodes of zinc, aluminum, magnesium, platinum, platinum-coated titanium, which are magnetically and electrically secured to ferro-magnetic metals, such as steel, steel compounds, nickel, cobalt for protecting these metals cathodically against corrosion.
The cathodic protection of ferro-magnetic metals by means of electrodes is inter alia known from Netherlands Pats. 36,564, 72,206, 74,279 and 81,577, German Pat. 644,418, U.S. Pat. Nos. 2,766,200, 2,863,819, 3,011,959 and 3,513,082, French Pat. 1,271,669 and British Pat. 870,086.
To this end, according to the invention, use is made of an electrode system comprising at least one magnet of a material which is corrosion-resistant and a layer of electrically conductive adhesive.
According to the invention, the electrode system comprises at least one magnet of a material which is electrically conductive.
According to the invention, the electrode system may comprise at least one magnet unit of ceramic material.