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GB803863A - Cathodic protection anode assembly - Google Patents

Cathodic protection anode assembly

Info

Publication number
GB803863A
GB803863A GB472/56A GB47256A GB803863A GB 803863 A GB803863 A GB 803863A GB 472/56 A GB472/56 A GB 472/56A GB 47256 A GB47256 A GB 47256A GB 803863 A GB803863 A GB 803863A
Authority
GB
United Kingdom
Prior art keywords
anode
casing
cathodic
secured
sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB472/56A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Publication of GB803863A publication Critical patent/GB803863A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B59/00—Hull protection specially adapted for vessels; Cleaning devices specially adapted for vessels
    • B63B59/04—Preventing hull fouling
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
    • C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
    • C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
    • C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
    • C23F13/18—Means for supporting electrodes
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F2213/00—Aspects of inhibiting corrosion of metals by anodic or cathodic protection
    • C23F2213/30—Anodic or cathodic protection specially adapted for a specific object
    • C23F2213/31—Immersed structures, e.g. submarine structures

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Prevention Of Electric Corrosion (AREA)

Abstract

803,863. Preventing corrosion. DOW CHEMICAL CO. Jan. 5, 1956 [Feb. 1, 1955], No. 472/56. Class 123(1) Sacrificial or impressed current anodes for the cathodic protection of metallic structures are enclosed in casings which are provided with perforations of such size, number and arrangement as to limit the total current flow and in particular the flow to the part of the cathodic surface nearest to the anode, thereby lengthening the anode life whilst increasing the area protected. In one form, Figs. 1 and 2. the anode 12 consists of a rectangular block of, for example, magnesium, which is secured to the cathodic surface 18 by bolts 20, a sheet 32 of rubber being interposed between the anode and the surface. In this construction the casing 14 is made of metal and is of an inverted pan-shape, its top 28 having a number of holes 30 therein. The casing is secured to the surface 18 so as to be insulated therefrom and from the anode, its lower edge engaging the sheet 32. In a modification the casing itself is made of insulating material. For use in an impressed current protection system the anode 12 is replaced by one of graphite mounted on insulators and supplied by a cable extending through the casing side, Figs. 4 and 5 (not shown). Specification 803,864 is referred to.
GB472/56A 1955-02-01 1956-01-05 Cathodic protection anode assembly Expired GB803863A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US803863XA 1955-02-01 1955-02-01

Publications (1)

Publication Number Publication Date
GB803863A true GB803863A (en) 1958-11-05

Family

ID=22157051

Family Applications (1)

Application Number Title Priority Date Filing Date
GB472/56A Expired GB803863A (en) 1955-02-01 1956-01-05 Cathodic protection anode assembly

Country Status (3)

Country Link
DE (1) DE1182929B (en)
FR (1) FR1146078A (en)
GB (1) GB803863A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3240180A (en) * 1964-08-03 1966-03-15 James T Byrd Electrolysis preventer for propeller drives
US9365936B2 (en) 2014-03-15 2016-06-14 Nicolas de Pierola Detachable retrievable outboard system and apparatus for sacrificial anodes
CN106627982A (en) * 2017-01-21 2017-05-10 浙江工业大学 Ship surface antifouling and resistance reducing device
WO2021111314A1 (en) * 2019-12-04 2021-06-10 Controle Et Maintenance Cathodic protection anode for an offshore structure and cathodic protection device comprising same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435973A (en) * 1941-08-19 1948-02-17 Rusta Restor Corp Method of and means for providing cathodic protection of metallic structures
US2645612A (en) * 1950-06-15 1953-07-14 American Smelting Refining Sacrificial anode

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3240180A (en) * 1964-08-03 1966-03-15 James T Byrd Electrolysis preventer for propeller drives
US9365936B2 (en) 2014-03-15 2016-06-14 Nicolas de Pierola Detachable retrievable outboard system and apparatus for sacrificial anodes
CN106627982A (en) * 2017-01-21 2017-05-10 浙江工业大学 Ship surface antifouling and resistance reducing device
WO2021111314A1 (en) * 2019-12-04 2021-06-10 Controle Et Maintenance Cathodic protection anode for an offshore structure and cathodic protection device comprising same
FR3104177A1 (en) * 2019-12-04 2021-06-11 Controle Et Maintenance CATHODIC PROTECTION ANODE FOR STRUCTURE AT SEA AND CATHODIC PROTECTION DEVICE INCLUDING IT

Also Published As

Publication number Publication date
FR1146078A (en) 1957-11-06
DE1182929B (en) 1964-12-03

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