US4534846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodes for electrolytic cells
Assignee: Olin Corp
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Filing: 1984-11-23
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Granted: 1985-08-13
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Expires: 2004-11-23
Abstract
Abstract An electrode for use in an electrolytic cell, wherein the electrode comprises a conductor and an element of a second metal, at least a portion of each having contact surfaces being held in intimate contact with the other, said conductor and said element each having a conductive coating applied to the contact surface, said conductive coating comprising between about 20 and about 30 percent indium and between about 80 and about 70 percent gallium, whereby the contact resistance between said conductor and said element is reduced.
Inventors
- 👤 Kenneth E. Woodard, Jr.
- 👤 Ronald L. Dotson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:46
CPC Classifications
C; C25; C25B; C25B11/00; C25B9/00; C25B9/60; C25B9/65
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
190 words
An electrode for use in an electrolytic cell having cell electrolyte flowing through the cell, comprising in combination: (a) a generally flat, planar conductor plate connectable to an electrical connection supplying electrical current having a contact surface; (b) a generally flat, planar element fastened to at least a portion of the conductor plate, the element being of a material that is corrosion-resistant to the cell electrolyte and having a contact surface; (c) conducting means fastened to the generally flat, planar element of corrosion-resistant material; (d) an electrode surface fastened to the conducting means spaced apart from the generally flat, planar element of corrosion-resistant material; and (e) an electrically conductive coating in contact with the contact surfaces of the conductor plate and the generally flat, planar element of corrosion resistant material immediately in line and opposite the conducting means, the electrically conductive coating being a liquid-metal mixture comprising between about 20 and about 30 percent indium by weight and between about 80 and about 70 percent gallium by weight such that the electrical contact resistance between the conductor plate and the generally flat, planar element of corrosion resistant material is reduced.
Claim 2
Dependent Claim
190 words
An electrode for use in an electrolytic cell having cell electrolyte flowing through the cell, comprising in combination: (a) a generally flat, planar conductor plate connectable to an electrical connection supplying electrical current having a contact surface; (b) a generally flat, planar element fastened to at least a portion of the conductor plate, the element being of a material that is corrosion-resistant to the cell electrolyte and having a contact surface; (c) conducting means fastened to the generally flat, planar element of corrosion-resistant material; (d) an electrode surface fastened to the conducting means spaced apart from the generally flat, planar element of corrosion-resistant material; and (e) an electrically conductive coating in contact with the contact surfaces of the conductor plate and the generally flat, planar element of corrosion resistant material immediately in line and opposite the conducting means, the electrically conductive coating being a liquid-metal mixture comprising between about 20 and about 30 percent indium by weight and between about 80 and about 70 percent gallium by weight such that the electrical contact resistance between the conductor plate and the generally flat, planar element of corrosion resistant material is reduced.
Claim 3
Dependent Claim
12 words
The apparatus according to claim 1 wherein the electrode surface is foraminous.
Claim 4
Dependent Claim
12 words
The apparatus according to claim 1 wherein the electrode is an anode.
Claim 5
Dependent Claim
12 words
The apparatus according to claim 3 wherein the conductor plate is copper.
Claim 6
Dependent Claim
17 words
The apparatus according to claim 4 wherein the generally flat, planar element of corrosion-resistant material is titanium.
Claim 7
Dependent Claim
12 words
The apparatus according to claim 5 wherein the electrode surface is titanium.
Claim 8
Dependent Claim
12 words
The apparatus according to claim 1 wherein the electrode is a cathode.
Claim 9
Dependent Claim
12 words
The apparatus according to claim 7 wherein the conductor plate is copper.
Claim 10
Dependent Claim
18 words
The apparatus according to claim 8 wherein the generally flat, planar element of corrosion resistant material is nickel.
Claim 11
Dependent Claim
12 words
The apparatus according to claim 9 wherein the electrode surface is nickel.
Claim 12
Dependent Claim
31 words
The apparatus according to claim 1 wherein the conducting means are a plurality of ribs of corrosion-resistant material at spaced intervals across the generally flat, planar element of corrosion resistant material.
Claim 13
Dependent Claim
16 words
The apparatus according to claim 11 wherein the ribs are generally vertically extending along their length.
Claim 14
Dependent Claim
18 words
The apparatus according to claim 12 wherein the ribs have a plurality of flow apertures along their length.
Claim 15
Dependent Claim
11 words
The apparatus according to claim 13 wherein the ribs are titanium.
Claim 16
Dependent Claim
11 words
The apparatus according to claim 13 wherein the ribs are nickel.
Claim 17
Dependent Claim
22 words
The apparatus according to claim 1 wherein the conductor plate further has a side adapted for electrical connection to conduct electrical current.
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) | 1988-08-12 | 1989-02-11 | 1989-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-12 | 1993-02-11 | 1993-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-12 | 1997-02-11 | 1997-08-13 | $7700.00 | Window Closed / Lapsed |