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| Number | Title | Issue Date |
| 8048288 | Impressed current protection for food or beverage containers Techniques are generally described herein for protecting food or beverage containers (e.g., cans) using impressed current protection. In various embodiments, containers may be received into at least one conductive bed, each bed having a complementary anode. The cont... | 11/01/2011 |
| 5820737 | Anti-fouling laminate marine structures A marine structure submersible in seawater, such as a hull, which when electrically activated is then resistant to fouling by marine organisms. The hull is formed by a structural laminate having a core sandwiched between inner and outer skins. The outer s... | 10/13/1998 |
| 5667649 | Corrosion-resistant ferrous alloys for use as impressed current anodes Impressed current anodes such as cathodic protection anodes comprise iron based alloys including less than 70% iron and less than 0.1% carbon. Additional components may include molybdenum, chromium, nickel and others. The iron based alloy may itself compr... | 09/16/1997 |
| 5527440 | Repair of damaged electrode in impressed current corrosion protection system A elongate electrode of an impressed current protection system comprises a polymeric jacket sleeve (10) that contains a particulate carbonrich filler (12) around a central elongate conductive core (4,6). The invention provides a method of repairing such a... | 06/18/1996 |
| 5525208 | Grounding electrode A method for electric protection of a metal object, in which a long-line grounding electrode is installed in an electrolytic medium at a preset distance from the metal object to be protected and the metal object and the long-line grounding electrode are e... | 06/11/1996 |
| 5476576 | Impressed current cathodic protection system A system for impressed current cathodic protection of a structure having a corrodible metal reinforcing member comprising: a) an electron source having a positive terminal and a negative terminal connected to said corrodible metal reinforcing member such ... | 12/19/1995 |
| 5102514 | Cathodic protection system using carbosil anodes An automotive cathodic protection apparatus applies direct current to an integrated circuit timer and power controller, which generates times output pulses. An output charge storing capacitor connects the power source and timer to a vehicle body.... | 04/07/1992 |
| 4990231 | Corrosion protection system Methods of preventing corrosion in which current flows between the to-be-protected substrate and a distributed electrode whose electrochemically active surface is provided by an element which is composed of a conductive polymer and which is at least 500 m... | 02/05/1991 |
| 4950372 | Cathodic protection system using carbosil anodes An automotive cathodic protection apparatus applies direct current to an integrated circuit timer and power controller, which generates timed output pulses. An output charge storing capacitor connects the power source and timer to a vehicle body.... | 08/21/1990 |
| 4921588 | Cathodic protection using carbosil anodes An anode of about 90-99% carbon, about 1-9% silica gel, and about 0.1% inert binders is mounted on a painted surface.... | 05/01/1990 |
| 4647353 | Cathodic protection system An anode of about 98% carbon, 2% silica gel and less than 1% inert binders is mounted on a layer spread on a metal surface.... | 03/03/1987 |
| 4175021 | Apparatus for preventing end effect in anodes An apparatus for and method of preventing end effect in deep well impressed current anodes surrounded by a carbonaceous backfill in which the opposite ends of an elongated slender anode are of non-conducting material and the remainder of the anode include... | 11/20/1979 |
| 4124465 | Protecting tube Method of protection of electrically conducting parts in fluoride melts through which direct current flows in the electrolysis of aluminum oxide, comprising applying such an electrical potential to said parts that the direct current flowing through the fl... | 11/07/1978 |
| 4116782 | Corrosion prevention system A method to reduce corrosion of a metal conduit in an aqueous electrolyte conduit system including a nonmetallic conduit system physically attached to the metal conduit comprising impressing an electric potential between an electrode positioned at least p... | 09/26/1978 |
| 4051436 | Apparatus for and method of measuring polarization potential of a metallic structure An improved testing device and method to measure the degree of polarization potential on the interface of a metal structure and its environment where said structure is protected against corrosion through a cathodic protection system. The testing device in... | 09/27/1977 |
