Patent EP0147977A2 successfully refreshed from Google Patents.
EP0147977A2
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Novel anodes for cathodic protection
Assignee: Raychem Corp
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Filing: 1984-12-12
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Granted: —
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Expires: 2004-12-12
Abstract
Abstract @ Novel anodes for cathodic protection systems comprise a plurality of elongate strands which are joined together to form an open flexible mesh. At least some of the strands are electrically conductive and comprise carbonaceous material which provides at least part of the electrochemically active surface of the anode. For example, the strands can consist of or contain carbon fibers and or conductive polymer elements. The novel anodes are particularly useful for the cathodic protection of reinforcing bars in concrete structures.
Inventors
- 👤 Richard F. Stratfull
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 21:50
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/01; C; C23; C23F; C23F13/00; C23F13/02; C23F2201/00; C23F2201/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
58 words
An anode suitable for use in the cathodic protection of corrodible substrates, characterized by comprising a plurality of elongate strands which are joined to each other to form a flexible open mesh, at least some of the strands being electrically conductive and comprising carbonaceous material which provides at least part of the electrochemically active surface of the mesh.
Claim 2
Dependent Claim
58 words
An anode suitable for use in the cathodic protection of corrodible substrates, characterized by comprising a plurality of elongate strands which are joined to each other to form a flexible open mesh, at least some of the strands being electrically conductive and comprising carbonaceous material which provides at least part of the electrochemically active surface of the mesh.
Claim 3
Dependent Claim
23 words
An anode according to Claim 1 characterized in that each of the electrically conductive strands is flexible and consists essentially of carbonaceous fibers.
Claim 4
Dependent Claim
60 words
An anode according to Claim 1 characterized in that each of the electrically conductive strands is flexible and comprises (a) a continuous elongate metal core, and (b) an elongate element which electrically surrounds the core, which is in electrical contact with the core, and which is composed of an organic polymer and carbonaceous material which is dispersed in the polymer.
Claim 5
Dependent Claim
34 words
An anode according to any one of Claims 1 to 3, characterized in that the minimum dimension of the apertures is at least 1 inch (2.5 cm), preferably at least 2 inch (5.1 cm).
Claim 6
Dependent Claim
33 words
An anode according to any one of Claims to 4, characterized in that the maximum dimension of the apertures is at most 4 inch (10.2 cm), preferably at most 8 inch (20.3 cm).
Claim 7
Independent Claim
39 words
A method of cathodically protecting a corrodible substrate by establishing a potential difference between the substrate as cathode and an anode, characterized in that the anode is an anode as claimed in any one of Claims 1 to 5.
Claim 8
Dependent Claim
51 words
A method according to Claim 6 characterized in that the substrate comprises metal reinforcing bars encased in a mass of concrete, and the anode is secured to a surface of the mass of concrete with the aid of an ionically conductive material which is at least as conductive as the concrete.
Claim 9
Dependent Claim
23 words
A method according to Claim 7 characterized in that said material is based on Portland Cement concrete, asphalt concrete, plaster, or a polymer.
Claim 10
Dependent Claim
26 words
A method according to Claim 7 or 8 characterized in that the anode is secured to a substantially horizontal upper surface of the mass of concrete.
Claim 11
Dependent Claim
42 words
A method according to Claim 7 or 8, characterized in that the anode is secured to a substantially horizontal lower surface of the mass of concrete or to a surface of the mass of concrete which is substantially inclined to the horizontal.
References Cited (Backward Citations)
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