Patent US4149956A successfully refreshed from Google Patents.
US4149956A
Expired / Lapsed
US
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Anode structure
Assignee: ELECTRODE Corp A DE CORP
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Filing: 1973-09-26
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Granted: 1979-04-17
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Expires: 1993-09-26
Abstract
Abstract Relates to anodes for electrolytic cells, for the electrolysis of brine solutions, having primary lead-in means of high conducting capacity (copper) for supplying anodic current to the cell from outside the cell and connected to a current supply source, primary conducting means of lower conducting capacity (titanium, or tantalum or alloys thereof) inside the cell, secondary conducting means of lower conducting capacity (titanium, or tantalum or alloys thereof) inside the cell for conducting current to an electrocatalytically active coating carried on a valve metal base, said electrocatalytic coating being capable of catalyzing halogen ion discharge without becoming passivated over long periods of time, said anodes serving to distribute the current in a cascade fashion from the primary lead-ins to the anode face.
Inventors
- 👤 James W. Bess, Sr.
- 👤 Oronzio De Nora
- 👤 Richard E. Loftfield
- 👤 Giovanni Trisoglio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:43
CPC Classifications
C; C25; C25B; C25B11/00; C25B11/02; C25B11/03
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
221 words
An anode for use in a horizontal electrolysis cell having a base, sides and a cell cover, a substantially horizontal cathode in said cell and a substantially horizontal valve metal anode in said cell opposite said cathode, said anode having a valve metal working face comprising an open mesh structure having an electric conducting electrocatalytic coating thereon, valve metal secondary conducting bars connected at their narrow edges to said working face and extending transversely of said working face, notches in said secondary conducting bars to permit relative movement of one part of said anode working face relative to the other parts, valve metal primary conducting bars connected to said secondary conducting bars at substantially right angles to said secondary conducting bars, said secondary conducting bars spacing said primary conductors from said working face, highly conductive, non valve metal lead-in conductors, means to detachably connect and reconnect said lead-in conductors directly to said primary conducting bars in firm contact therewith, liquid and gas-proof valve metal protective sleeves surrounding and spaced from said lead-in conductors, said sleeves extending between said primary conductors and said cell cover inside said cell, said means for connecting and disconnecting said lead-in conductors to said primary conductors being inside said sleeves, whereby said lead-in conductors can be connected to and disconnected from said primary conductors inside said sleeves.
Claim 2
Dependent Claim
221 words
An anode for use in a horizontal electrolysis cell having a base, sides and a cell cover, a substantially horizontal cathode in said cell and a substantially horizontal valve metal anode in said cell opposite said cathode, said anode having a valve metal working face comprising an open mesh structure having an electric conducting electrocatalytic coating thereon, valve metal secondary conducting bars connected at their narrow edges to said working face and extending transversely of said working face, notches in said secondary conducting bars to permit relative movement of one part of said anode working face relative to the other parts, valve metal primary conducting bars connected to said secondary conducting bars at substantially right angles to said secondary conducting bars, said secondary conducting bars spacing said primary conductors from said working face, highly conductive, non valve metal lead-in conductors, means to detachably connect and reconnect said lead-in conductors directly to said primary conducting bars in firm contact therewith, liquid and gas-proof valve metal protective sleeves surrounding and spaced from said lead-in conductors, said sleeves extending between said primary conductors and said cell cover inside said cell, said means for connecting and disconnecting said lead-in conductors to said primary conductors being inside said sleeves, whereby said lead-in conductors can be connected to and disconnected from said primary conductors inside said sleeves.
Claim 3
Dependent Claim
43 words
The anode of claim 1, in which said working face, said secondary conducting bars, said primary conducting bars and said protective sleeves are made of titanium and are welded together, and said lead-in conductors are of a material of higher conductivity than titanium.
Claim 4
Dependent Claim
43 words
The anode of claim 1, in which said protective sleeves are separate from said primary conducting bars and have a flange making a liquid and gas-proof seal with said cell cover and a base making a liquid-proof seal with said primary conducting bars.
Claim 5
Dependent Claim
21 words
The anode of claim 1, in which the lead-in conductors abut tightly against the primary conductor bars to conduct current thereto.
Claim 6
Dependent Claim
147 words
An anode for use in a flowing mercury cathode chlorine cell having a base, sides and a cell cover, said anode comprising lead-in conductors, an anode working face having a foraminate structure, primary conducting bars detachably connected to said lead-in conductors and extending longitudinally of the anode working face, said lead-in conductors abutting against said primary conducting bars, and secondary conducting bars extending transversely of the anode working face inside the cell, said secondary conducting bars extending substantially at right angles to said primary conducting bars, and being connected thereto, the anode face being spaced from the primary conducting bars by the secondary conducting bars, said primary and secondary conducting bars and said anode working face being constructed of the same metal and integrally connected together, said secondary conducting bars being notched to permit relative movement of one part of the anode face relative to the other.
Claim 7
Dependent Claim
147 words
An anode for use in a flowing mercury cathode chlorine cell having a base, sides and a cell cover, said anode comprising lead-in conductors, an anode working face having a foraminate structure, primary conducting bars detachably connected to said lead-in conductors and extending longitudinally of the anode working face, said lead-in conductors abutting against said primary conducting bars, and secondary conducting bars extending transversely of the anode working face inside the cell, said secondary conducting bars extending substantially at right angles to said primary conducting bars, and being connected thereto, the anode face being spaced from the primary conducting bars by the secondary conducting bars, said primary and secondary conducting bars and said anode working face being constructed of the same metal and integrally connected together, said secondary conducting bars being notched to permit relative movement of one part of the anode face relative to the other.
Claim 8
Dependent Claim
48 words
The anode of claim 5, in which the anode working face and the primary and secondary conducting bars are titanium and liquid and gas-proof titanium sleeves surround the lead-in conductors inside the cell and are spaced therefrom and extend between the primary conducting bars and the cell cover.
Claim 9
Dependent Claim
16 words
The anode of claim 5 in which the anode working face is formed of spaced rods.
Claim 10
Dependent Claim
42 words
The anode of claim 5 in which the sleeves are separate from the primary conducting bars and have a flange making a liquid and gas-proof seal with the cell cover and a base making a liquid-proof seal with the primary conducting bars.
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) | 1982-04-16 | 1982-10-16 | 1983-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-16 | 1986-10-16 | 1987-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-16 | 1990-10-16 | 1991-04-17 | $7700.00 | Window Closed / Lapsed |