Patent US4647863A successfully refreshed from Google Patents.
US4464242A
Expired / Lapsed
US
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Electrode structure for use in electrolytic cell
Assignee: Imperial Chemical Industries Ltd
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Filing: 1982-11-12
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Granted: 1984-08-07
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Expires: 2002-11-12
Abstract
Abstract An electrode structure comprising an electrically conductive sheet material, a plurality of projections on at least one surface of the sheet material and preferably on both surfaces, which are spaced apart from each other in a first direction and in a direction transverse thereto, and a flexible electrically conductive foraminous sheet or sheets electrically conductively bonded to the projections.
Inventors
- 👤 Thomas W. Boulton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:32
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/70; C25B9/73; C25B9/75; C25B11/00; C25B11/02; C25B11/03; C25B1/00; C25B1/01; C25B1/34; C25B1/46; C25B15/00; C25B15/02
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
121 words
An electrolytic cell comprising terminal electrodes and a plurality of separators, characterised in that the cell comprises at least one electrode structure positioned between the terminal electrodes and comprising projection on both surfaces of an electrially conductive sheet material spaced apart from each other in a first direction and in a direction transverse to the first direction and flexible electrically conductive foraminate sheets electrically conductively bonded to the projections, the sheet having openings therein which permit flow of liquor in a direction transverse to the plane of the sheet material, and a separator positioned between the foraminate sheets of adjacent electrode structures, and between the electrode structures and the terminal electrodes, thereby dividing the cell into separate anode and cathode compartments.
Claim 2
Dependent Claim
121 words
An electrolytic cell comprising terminal electrodes and a plurality of separators, characterised in that the cell comprises at least one electrode structure positioned between the terminal electrodes and comprising projection on both surfaces of an electrially conductive sheet material spaced apart from each other in a first direction and in a direction transverse to the first direction and flexible electrically conductive foraminate sheets electrically conductively bonded to the projections, the sheet having openings therein which permit flow of liquor in a direction transverse to the plane of the sheet material, and a separator positioned between the foraminate sheets of adjacent electrode structures, and between the electrode structures and the terminal electrodes, thereby dividing the cell into separate anode and cathode compartments.
Claim 3
Dependent Claim
61 words
An electrolytic cell as claimed in claim 1 characterised in that each terminal electrode comprises a plurality of projections positioned on one surface of a sheet material which projections are spaced apart from each other in a first direction and in a direction transverse to the first direction, and a flexible electrically conductive foraminate sheet electrically conductively bonded to the projections.
Claim 4
Dependent Claim
109 words
An electrode structure comprising an electrically conductive sheet material and at least one flexible electrically conductive foraminate sheet spaced apart from the sheet material and electrically conductively bonded thereto, characterised in that a plurality of projections are positioned on at least one surface of the sheet material which projections are spaced apart from each other in a first direction and in a direction transverse to the first direction, and in that the flexible electrically conductive foraminate sheet(s) are electrically conductively bonded to the projections and in that the sheet material has openings therein which permit flow of liquor in a direction transverse to the plane of the sheet material.
Claim 5
Dependent Claim
109 words
An electrode structure comprising an electrically conductive sheet material and at least one flexible electrically conductive foraminate sheet spaced apart from the sheet material and electrically conductively bonded thereto, characterised in that a plurality of projections are positioned on at least one surface of the sheet material which projections are spaced apart from each other in a first direction and in a direction transverse to the first direction, and in that the flexible electrically conductive foraminate sheet(s) are electrically conductively bonded to the projections and in that the sheet material has openings therein which permit flow of liquor in a direction transverse to the plane of the sheet material.
Claim 6
Dependent Claim
16 words
An electrode structure as claimed in claim 1 characterised in that the sheet material is flexible.
Claim 7
Dependent Claim
24 words
An electrode structure as claimed in claim 2 characterised in that the foraminate sheet has a flexibility greater than that of the sheet material.
Claim 8
Dependent Claim
39 words
A electrode structure as claimed in claim 1 characterised in that the sheet material comprises projections on both surfaces thereof and in that flexible electrically conductive foraminate sheets are electrically conductively bonded to the projections on both said surfaces.
Claim 9
Dependent Claim
36 words
An electrode structure as claimed in any one of claims 2 or 6 characterised in that the height of the projections from the plane of the sheet material is in the range 2 to 15 mm.
Claim 10
Dependent Claim
36 words
An electrode structure as claimed in any one of claims 2 or 6 characterised in that the distance between adjacent projections on a surface of the sheet material is in the range 2 to 25 cm.
Claim 11
Dependent Claim
21 words
An electrode structure as claimed in any one of claims 1, 2 or 6 characterised in that the structure is metallic.
Claim 12
Dependent Claim
30 words
An electrode structure as claimed in any one of claims 1, 2 or 6 characterised in that the foraminate sheet has a thickness in the range 0.1 to 1 mm.
Claim 13
Dependent Claim
24 words
An electrode structure as claimed in claim 1 characterised in that the sheet material is resilient and in that the foraminate sheets are resilient.
Claim 14
Dependent Claim
42 words
An electrode structure as claimed in claim 1 characterised in that the projections on a surface of the sheet material are spaced apart from each other in a first direction and in a direction substantially at right angles to the first direction.
Claim 15
Dependent Claim
42 words
An electrode structure as claimed in any one of claims 1 3 or 6 characterised in that the projections on one surface of the sheet material are staggered in position with respect to those on the opposite surface of the sheet material.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-07 | 1988-02-06 | 1988-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-07 | 1992-02-06 | 1992-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-07 | 1996-02-06 | 1996-08-07 | $7700.00 | Window Closed / Lapsed |