Internal cathodic protection system

Details Internal cathodic protection system Internal cathodic protection system

2006-07-25

2006-07-25

Bell, Bruce F. (Department: 1746)

Chemistry: electrical and wave energy

Apparatus

Electrolytic

C204S196330, C204S196340, C204S196350, C204S196360, C204S196210, C204S196260, C204S196110, C204S196160

Reexamination Certificate

active

07081187

ABSTRACT:
A cathodic protection system for internal surfaces of a pipeline is provided which includes a flexible anode assembly having a first and a second end and having at least one flexible anode wire having a first end and a second end. First and second removable pressure seal fittings are provided for the ends of the anode assembly that provide for electrical contact between the ends of the anode assembly and contacts outside of the internal volume of the pipeline. The system includes a DC power source where anode conductors are attached between the contacts and the DC power source. A second embodiment is provided that includes only a single pressure seal fitting.

REFERENCES:
patent: 4140614 (1979-02-01), McKie
patent: 4400259 (1983-08-01), Schutt
patent: 4442903 (1984-04-01), Schutt et al.
patent: 4871328 (1989-10-01), Wright et al.
patent: 5055166 (1991-10-01), Schutt
patent: 5176807 (1993-01-01), Kumar
patent: 6238545 (2001-05-01), Allebach et al.

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