Patent US4022679A successfully refreshed from Google Patents.
US4022679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated titanium anode for amalgam heavy duty cells
Assignee: De Nora Deutschland GmbH
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Filing: 1975-12-19
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Granted: 1977-05-10
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Expires: 1995-12-19
Abstract
Abstract The anode is particularly designed for use at anodic densities D A greater than 10 kA/m 2 , and comprises substantially horizontally extending coated anode segments having a clear spacing of at least 1.5 mm from each other and upwardly extending lateral surfaces. Each segment has an active coated part higher than 5 mm and not exceeding 20 mm, measured from the horizontal undersurface of the anode. The actual active surface of the parts, up to heights of 5 mm, 7.5 mm, 10 mm and 15 mm, respectively, exceeds at least 2.5, 3.33, 4 and 4.7 times, respectively, the projected anode area which latter is the total area bounded by the periphery of the anode. At least half the actual active surface extends upwardly relative to the horizontal base area of the anode.
Inventors
- 👤 Konrad Koziol
- 👤 Karl-Heinz Sieberer
- 👤 Baptist Zenk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:06
CPC Classifications
C; C25; C25B; C25B11/00; C25B11/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
153 words
A coated titanium anode for electrically highly loaded amalgam cells, particularly for use at anodic current densities D A greater than 10 kA/m 2 , said anode comprising substantially horizontally extending completely coated anode segments having a clear lateral spacing of at least 1.5 mm and upwardly extending lateral surfaces, and each having an active coated upwardly extending part extending to a height of more than 5 mm and not exceeding 20 mm, measured from the horizontal undersurface of the anode, wherein the actual active surface of said upwardly extending parts, up to heights thereof of 5 mm, 7.5 mm, 10 mm and 15 mm, respectively, exceeds at least 2.5, 3.33, 4 and 4.5 times, respectively, the projected horizontal anode area which is the total area bounded by the periphery of the anode, and wherein at least half the actual active surface extends upwardly relative to the horizontal base area of the anode.
Claim 2
Dependent Claim
153 words
A coated titanium anode for electrically highly loaded amalgam cells, particularly for use at anodic current densities D A greater than 10 kA/m 2 , said anode comprising substantially horizontally extending completely coated anode segments having a clear lateral spacing of at least 1.5 mm and upwardly extending lateral surfaces, and each having an active coated upwardly extending part extending to a height of more than 5 mm and not exceeding 20 mm, measured from the horizontal undersurface of the anode, wherein the actual active surface of said upwardly extending parts, up to heights thereof of 5 mm, 7.5 mm, 10 mm and 15 mm, respectively, exceeds at least 2.5, 3.33, 4 and 4.5 times, respectively, the projected horizontal anode area which is the total area bounded by the periphery of the anode, and wherein at least half the actual active surface extends upwardly relative to the horizontal base area of the anode.
Claim 3
Dependent Claim
52 words
A coated titanium anode according to claim 1, in which the current distribution takes place within the active coated part, and which is provided with contact means for a current feed, the contact means having a structure such that both horizontal surfaces of the anode may be used by inverting the anode.
Claim 4
Dependent Claim
42 words
A coated titanium anode according to claim 1, in which said anode segments comprises coated, vertically oriented titanium bands having a thickness of 1 mm and a height of 20 mm, the clear space between said coated titanium bands being 2 mm.
Claim 5
Dependent Claim
41 words
A coated titanium anode according to claim 3, wherein said bands are connected with one another on their upper edges by several transversely extending welding seams, and wherein the current distribution is effected by a welded-on transverse bar of uncoated titanium.
Claim 6
Dependent Claim
27 words
A coated titanium anode according to claim 4, wherein said transverse bar of uncoated titanium is provided with a titanium protective tube of a current feed line.
Claim 7
Dependent Claim
16 words
A coated titanium anode according to claim 1, consisting of a slotted and coated titanium sheet.
Claim 8
Dependent Claim
27 words
A coated titanium anode according to claim 6, wherein said titanium sheet has a thickness of 12 mm, and the width of said slots is 2.5 mm.
References Cited (Backward Citations)
GB1076973A
Cited
US3409533A
Cited
US3458423A
Cited
US3676325A
Cited
US3839179A
Cited
US3838035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-09 | 1980-11-08 | 1981-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-09 | 1984-11-08 | 1985-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-09 | 1988-11-08 | 1989-05-10 | $7700.00 | Window Closed / Lapsed |