Patents for C23F 13 - Inhibiting corrosion of metals by anodic or cathodic protection (3,652)
03/1981
03/10/1981US4255242 Reference electrode IR drop corrector for cathodic and anodic protection systems
03/10/1981US4255241 Cathodic protection apparatus and method for steel reinforced concrete structures
03/10/1981US4254853 Friction clutch
02/1981
02/17/1981US4251343 Sacrificial anode apparatus
02/03/1981CA1094976A1 Cathodic protection system for a motor vehicle
01/1981
01/20/1981CA1094015A1 Container anode
12/1980
12/16/1980CA1091618A1 Method of operating a chlor-alkali cell
12/09/1980US4238551 Composition for inhibiting corrosion of titanium
12/09/1980US4238233 Aluminum alloy for cladding excellent in sacrificial anode property and erosion-corrosion resistance
11/1980
11/25/1980US4235681 Anodes for cathodic protection and other electrolytic processes
11/12/1980EP0018522A1 Method and apparatus for sustaining a cathodic protection against corrosion
11/04/1980US4231852 Device for cathodic corrosion protection employing an external current anode
10/1980
10/29/1980EP0018124A1 Anodically passivated vessel and method of passivating it
10/28/1980CA1088458A1 Method of corrosion protection of objects in contact with conducting medium
10/14/1980US4228399 Offshore pipeline electrical survey method and apparatus
10/14/1980US4227985 Anode assembly
10/07/1980US4226694 Cathodic protection system for a motor vehicle
09/1980
09/17/1980EP0015579A1 Test station
09/09/1980CA1085345A1 Cathodic water treater
08/1980
08/26/1980US4219807 Sensor system for an impressed cathodic protection circuit
08/12/1980CA1083528A1 Method and apparatus for monitoring a cathodically protected corrodible hollow member
08/06/1980EP0014030A1 Cathodic protection anode assembly, a method of cathodically protecting structures and structures so protected
08/05/1980US4216272 Corrosion resistance
08/05/1980US4216070 Protection of stud-link chain-cables by means of soluble anodes
08/05/1980US4215794 Tab for easy-open can end
07/1980
07/24/1980WO1980001488A1 Impressed current systemf for cathodic protection
07/22/1980CA1082124A1 Maintaining trough electrolyte anodic with auxiliary electrode
07/08/1980US4211625 Impressed current cathodic protection system for submersible downhole pumping assembly
07/01/1980US4209896 Method of assembly of an anti-corrosion anode connector system
07/01/1980US4209889 Corrosion resistant fastening system and method
06/1980
06/24/1980US4209555 Corrosion resistant galvanic coating
06/17/1980US4208264 Sensor for determination of the polarization potential and/or the interference of metal structures buried in an electrolyte in a current field
06/17/1980CA1079805A1 Diverless cathodic protection data acquisition
06/17/1980CA1079509A1 Composition for corrosion protection
05/1980
05/20/1980US4203810 Electrolytic process employing electrodes having coatings which comprise platinum
05/13/1980US4202751 Prevention of corrosion of copper alloy parts and hydrogen absorptition in titanium parts
05/13/1980US4202750 Sacrificial anode, corrosion resistance
05/06/1980US4201637 For steel offshore platform, perforated container, tubes
04/1980
04/30/1980EP0010382A2 Use of treated niobium or tantalum as a connector, such a connector and a cathodic protection system using such a connector
04/01/1980US4196064 Marine fouling control
03/1980
03/25/1980CA1074255A1 Cathodic protection for structures at sea by sacrificial anodes__
03/04/1980US4191625 Aluminum marine anode assembly with low resistance surface mountings
02/1980
02/26/1980US4190512 Sacrificial anodes
02/12/1980CA1071710A1 Process and apparatus for investigating the activity of a cathodic protection unit
02/05/1980US4187164 Anode
02/05/1980CA1070985A1 Electrochemically active aluminum alloy
01/1980
01/22/1980US4184938 Apparatus for reducing electrolytic interference with metal structures
12/1979
12/04/1979CA1067257A1 Aluminium brazed composite
11/1979
11/27/1979US4176033 To protect oil and gas wells from galvanic corrosion
11/20/1979US4175021 Corrosion resistance
11/20/1979CA1066664A1 Segmented sacrificial anode attachment to water heating element
11/13/1979CA1066175A1 Aluminum sacrificial anode
11/06/1979US4173523 Aluminum with zinc or cadmium and mercury, magnesium and copper
10/1979
10/23/1979US4172181 Aluminum alloy, cladding
10/16/1979US4171297 Composed of zinc, dicyclohexylamine nitrate, a vinyl silane coupling agent, and polystyrene dissolved in ethyl acetate
10/16/1979US4171254 Shielded anodes
10/09/1979US4170532 For underground metallic structures
09/1979
09/25/1979US4169028 Cathodic protection
08/1979
08/14/1979US4164257 Internal protection of well casing
08/07/1979CA1059948A1 Ice free self-releasing water tank anode suspension system
07/1979
07/24/1979CA1059214A1 Method and apparatus for measuring the polarizing potential of insulated metal structures
07/17/1979CA1058552A1 Electrodes
07/03/1979US4160171 Method and apparatus for determining the reference voltage in an impressed current corrosion protection system
06/1979
06/19/1979CA1056766A1 Cathodic protection monitoring apparatus for marine propulsion devices
06/12/1979US4157943 Composite electrode for electrolytic processes
05/1979
05/29/1979US4156529 Stuffing box seal for fittings
05/01/1979US4152236 Apparatus for controlled potential pitting corrosion protection of long, narrow stainless steel tubes
05/01/1979US4152228 Method for reducing electrolytic interference with metal structures
04/1979
04/24/1979US4150980 Aluminum alloy excellent in high-temperature sagging resistance and sacrificial anode property
04/17/1979CA1052595A1 Aluminum alloy anode composition
04/03/1979US4147608 Impressed current cathodic protection
04/03/1979US4147607 Grounding
04/03/1979CA1051728A1 Closed-loop cables for submarine anchoring, and anchors fitted with suc cables
03/1979
03/27/1979US4146448 Protection of a stern tube shaft liner
02/1979
02/27/1979US4141725 Zinc, indium, calcium, magnesium
02/20/1979US4140614 Internal cathodic protection of pipes
02/06/1979US4138323 Apparatus for anodic protection against corrosion of metal objects in contact with electrically conductive media
02/06/1979CA1048091A1 Protecting metal heating electrodes of melting furnaces with dc current and apparatus therefor
01/1979
01/23/1979US4136309 Power output control circuit for solar-powered cathodic protection system
01/23/1979US4136001 Non-sacrificial anode and water heater construction
01/23/1979CA1046985A1 Protective anode
01/23/1979CA1046982A1 Corrosion-prevention system
01/16/1979US4135013 Method for the prevention of stress corrosion cracking
01/09/1979US4133737 Shielded anodes
01/09/1979US4133734 Portable sensor for measuring the corrosion endangering and electrochemical protection of a metal structure buried in an electrolyte in a current field
12/1978
12/26/1978CA1045057A1 Pipeline provided with a crack/buckle arrester combined with an anode
12/19/1978CA1044759A1 Hot water heater corrosion detector probe
12/19/1978CA1044644A1 Cathodic protection system
11/1978
11/14/1978US4125646 Diffusion coating of magnesium in metal substrates
10/1978
10/31/1978US4123335 Voltage measurement with spaced reference electrode
10/17/1978US4120760 Forming protective, corrosion resistant coating of zinc; deoxidizing sea water with sulfur dioxide, cathodizing
10/10/1978CA1040134A1 Cathodic protection device
09/1978
09/26/1978US4117345 Marine ground isolator
09/26/1978US4116782 Corrosion prevention system
09/12/1978US4113600 Zinc, aluminum, or magnesium
09/12/1978CA1038331A1 Anticorrosive circuit for a buried structure
09/12/1978CA1038328A1 Prevention of unwanted deposits in polymerization processes
08/1978
08/29/1978US4110181 Method of handling aqueous solutions of alkali metal hydroxides that are concentrated in respect of alkali metal halides
08/15/1978US4107017 Measure of protection against electrochemical corrosion
07/1978
07/04/1978US4098663 Anti-corrosion anode connector system
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