CA2030970A1 - Dual bed cathodic protection system with automatic controls and method of use - Google Patents

Dual bed cathodic protection system with automatic controls and method of use

Info

Publication number
CA2030970A1
CA2030970A1 CA 2030970 CA2030970A CA2030970A1 CA 2030970 A1 CA2030970 A1 CA 2030970A1 CA 2030970 CA2030970 CA 2030970 CA 2030970 A CA2030970 A CA 2030970A CA 2030970 A1 CA2030970 A1 CA 2030970A1
Authority
CA
Canada
Prior art keywords
power source
solar power
metallic structure
anode assembly
connecting means
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.)
Granted
Application number
CA 2030970
Other languages
French (fr)
Other versions
CA2030970C (en
Inventor
Ronald L. Carpenter
Craig E. Yates
Robert G. Morris
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.)
COLORADO SOLAR-TECH Inc
Original Assignee
Ronald L. Carpenter
Craig E. Yates
Robert G. Morris
Colorado Interstate Gas Company
Colorado Solar-Tech, Inc.
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 Ronald L. Carpenter, Craig E. Yates, Robert G. Morris, Colorado Interstate Gas Company, Colorado Solar-Tech, Inc. filed Critical Ronald L. Carpenter
Priority to CA 2030970 priority Critical patent/CA2030970C/en
Publication of CA2030970A1 publication Critical patent/CA2030970A1/en
Application granted granted Critical
Publication of CA2030970C publication Critical patent/CA2030970C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • C23F2213/20—Constructional parts or assemblies of the anodic or cathodic protection apparatus
    • C23F2213/21—Constructional parts or assemblies of the anodic or cathodic protection apparatus combining at least two types of anodic or cathodic protection

Landscapes

  • Prevention Of Electric Corrosion (AREA)

Abstract

A cathodic protection system for a metallic structure buried in the earth, the system comprising an impressed anode assembly buried in the earth in proximity with said metallic structure; a sacrificial anode assembly buried in the earth in proximity with said metallic structure; a solar power source for providing an output voltage that increases with increasing intensity of sunlight incident thereon and that decreases with decreasing intensity of the sunlight incident thereon;
first connecting means, powered solely by said solar power source, operative for selectively connecting and disconnecting said sacrificial anode assembly with said metallic structure; second connecting means, powered solely by said solar power source, operative for selectively connecting and disconnecting said solar power source between said impressed anode assembly and said metallic structure; and sensing means, coupled to said solar power source and to said first and second connecting means, for sensing the output voltage of said solar power source, said sensing means being operative, upon sensing that the output voltage of said solar power source has fallen below a predetermined level, for causing said first connecting means to connect said metallic structure to said sacrificial anode assembly and for causing said second connecting means to disconnect said solar power source from said metallic structure and said impressed anode assembly, said sensing means being further operative, upon sensing that the output voltage of said solar power source has risen above said predetermined level, for causing said first connecting means to disconnect said metallic structure from said sacrificial anode assembly and for causing said second connecting means to connect said solar power source to said metallic structure and said impressed anode assembly.
CA 2030970 1990-10-30 1990-10-30 Dual bed cathodic protection system with automatic controls and method of use Expired - Fee Related CA2030970C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2030970 CA2030970C (en) 1990-10-30 1990-10-30 Dual bed cathodic protection system with automatic controls and method of use

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2030970 CA2030970C (en) 1990-10-30 1990-10-30 Dual bed cathodic protection system with automatic controls and method of use

Publications (2)

Publication Number Publication Date
CA2030970A1 true CA2030970A1 (en) 1992-05-01
CA2030970C CA2030970C (en) 1999-06-29

Family

ID=4146540

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2030970 Expired - Fee Related CA2030970C (en) 1990-10-30 1990-10-30 Dual bed cathodic protection system with automatic controls and method of use

Country Status (1)

Country Link
CA (1) CA2030970C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8961746B2 (en) 2012-07-19 2015-02-24 Vector Corrosion Technologies Ltd. Charging a sacrificial anode with ions of the sacrificial material
US8968549B2 (en) 2012-07-19 2015-03-03 Vector Corrosion Technologies Ltd. Two stage cathodic protection system using impressed current and galvanic action
US10053782B2 (en) 2012-07-19 2018-08-21 Vector Corrosion Technologies Ltd. Corrosion protection using a sacrificial anode
USRE49882E1 (en) 2012-07-19 2024-03-26 Vector Corrosion Technologies Ltd. Corrosion protection using a sacrificial anode

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2015200284B2 (en) * 2012-07-19 2017-10-05 Vector Corrosion Technologies Ltd Corrosion protection using a sacrifical anode
AU2013293019B2 (en) * 2012-07-19 2017-08-24 Vector Corrosion Technologies Ltd. Corrosion protection using a sacrificial anode

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8961746B2 (en) 2012-07-19 2015-02-24 Vector Corrosion Technologies Ltd. Charging a sacrificial anode with ions of the sacrificial material
US8968549B2 (en) 2012-07-19 2015-03-03 Vector Corrosion Technologies Ltd. Two stage cathodic protection system using impressed current and galvanic action
US10053782B2 (en) 2012-07-19 2018-08-21 Vector Corrosion Technologies Ltd. Corrosion protection using a sacrificial anode
USRE49882E1 (en) 2012-07-19 2024-03-26 Vector Corrosion Technologies Ltd. Corrosion protection using a sacrificial anode

Also Published As

Publication number Publication date
CA2030970C (en) 1999-06-29

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Legal Events

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EEER Examination request
MKLA Lapsed