CATHODIC PROTECTION OF METAL SUBSTRATES
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United States of America Patent
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Jun 14, 2016
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Jun 15, 2015
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Abstract
A metallic object to be protected from corrosion, such as a steel automobile body panel, is connected to an electron source as a cathode. An electrically isolating coating is disposed on the metallic object. A covering anode is applied onto the electrically isolating coating. The covering anode is electrically conductive. An electrode is connected to the covering anode and to the electron source. Damage to the covering anode and the electrically isolating coating creates a location for electrolyte to collect to create an electrochemical cell and activate cathodic protection to prevent corrosion of the metallic object.
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