Patent US4187164A successfully refreshed from Google Patents.
US4187164A
Expired / Lapsed
US
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Anode
Assignee: Imperial Chemical Industries Ltd
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Filing: 1978-06-29
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Granted: 1980-02-05
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Expires: 1998-06-29
Abstract
Abstract A titanium or niobium cathodic protection anode component comprising a strip of metal roll formed to have, in cross-section, a U-shaped portion with a pair of arms extending from the free edges of the U-shaped portion there being a layer of platinum on the convex surface of the spine of the strip, and systems incorporating such anodes.
Inventors
- 👤 Michael A. Warne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:35
CPC Classifications
C; C23; C23F; C23F13/00
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
80 words
An anode component for use in cathodic protection comprising a strip of metal selected from the group consisting of titanium, niobium, hafnium, tantalum and alloys of one or more thereof having anodic properties comparable thereto, said strip having marginal regions and a substantially central longitudinal portion between said marginal regions, said central portion of the strip having a longitudinally extending spine upstanding from the marginal regions of the strip and the spine having a layer of anodically active material thereon.
Claim 2
Dependent Claim
80 words
An anode component for use in cathodic protection comprising a strip of metal selected from the group consisting of titanium, niobium, hafnium, tantalum and alloys of one or more thereof having anodic properties comparable thereto, said strip having marginal regions and a substantially central longitudinal portion between said marginal regions, said central portion of the strip having a longitudinally extending spine upstanding from the marginal regions of the strip and the spine having a layer of anodically active material thereon.
Claim 3
Dependent Claim
18 words
An anode component as claimed in claim 1 wherein the spine is of substantially U-shaped or V-shaped cross-section.
Claim 4
Dependent Claim
24 words
An anode component as claimed in claim 1 or claim 2 wherein the anodically active material is on the external surface of the spine.
Claim 5
Dependent Claim
21 words
An anode component as claimed in claim 1 or claim 2 wherein the strip has been deformed by a roll-forming operation.
Claim 6
Dependent Claim
42 words
An anode component as claimed in claim 1 or claim 2 wherein the anodically active material is selected from the group consisting of platinum group metals, platinum group metal oxides, conducting platinum group metal compounds, lead and lead alloys and lead dioxide.
Claim 7
Dependent Claim
24 words
An anode component as claimed in claim 1 or claim 2 wherein said marginal regions of the strip lie in substantially the same plane.
Claim 8
Dependent Claim
38 words
An anode component as claimed in claim 1 or claim 2 wherein said marginal regions of the strip are continuous and co-extensive with the spine and wherein the spine extends along essentially the entire length of the strip.
Claim 9
Dependent Claim
22 words
An anode component as claimed in claim 1 or claim 2 wherein said marginal regions are free of said anodically active material.
Claim 10
Dependent Claim
23 words
An assembly of a plurality of anode components as claimed in claim 1 or claim 2 arranged in fixed juxtaposition to one another.
Claim 11
Dependent Claim
22 words
An anode component as claimed in claim 1 or claim 2 wherein the strip is substantially in the form of a hoop.
Claim 12
Dependent Claim
22 words
An assembly of a plurality of components as claimed in claim 10, the components being coaxially, spatially fixed relative to one another.
Claim 13
Dependent Claim
17 words
A component as claimed in claim 1 or 2 including means to attach an electrical conductor thereto.
Claim 14
Dependent Claim
15 words
A cathodic protection anode comprising a component as claimed in claim 1 or claim 2.
Claim 15
Dependent Claim
37 words
A cathodic protection anode as claimed in claim 13 wherein the marginal regions of the strip are embedded in a suport of electrically insulative material so as to leave exposed a continuous strip of anodically active material.
Claim 16
Dependent Claim
20 words
A structure having electrically connected thereto via an impressed current source a cathodic protection anode as claimed in claim 13.
Claim 17
Dependent Claim
20 words
In a ship, the hull of which incorporates a cathodic protection anode, the improved anode as claimed in claim 13.
Claim 18
Independent Claim
46 words
A method of cathodically protecting a structure which comprises utilizing an anode as claimed in any one of claims 13 or 14 and wherein the anode and the structure are electrically connected to an impressed current source to render the anode anodic relative to the structure.
Claim 19
Dependent Claim
14 words
A cathodic protection anode comprising an assembly of components as claimed in claim 9.
Claim 20
Dependent Claim
20 words
A structure having electrically connected thereto via an impressed current source a cathodic protection anode as claimed in claim 18.
Claim 21
Dependent Claim
20 words
In a ship, the hull of which incorporates a cathodic protection anode the improved anode as claimed in claim 18.
Claim 22
Dependent Claim
41 words
A method of cathodically protecting a structure which comprises utilising an anode as claimed in claim 18 and wherein the anode and the structure are electrically connected to an impressed current source to render the anode anodic relative to the structure.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-02-04 | 1983-08-06 | 1984-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-04 | 1987-08-06 | 1988-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-04 | 1991-08-06 | 1992-02-05 | $7700.00 | Window Closed / Lapsed |