Patent US4121994A successfully refreshed from Google Patents.
US4121994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anode support means for an electrolytic cell
Assignee: Occidental Chemical Corp
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Filing: 1977-11-17
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Granted: 1978-10-24
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Expires: 1997-11-17
Abstract
Abstract A technique for affixing anode support rods to the wall of a chlor-alkali type of electrolytic cell, wherein the support rod is positioned and affixed to the cell wall through a welding operation providing a leak proof seal and electrical contact, as well as providing for its easy removal and replacement for maintenance purposes.
Inventors
- 👤 Monte Dennis Crippen
- 👤 Cyril James Harke
- 👤 Bernardus Johannes Mentz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:49
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/60; C25B9/65; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49174; Y10T29/49179; Y10T29/49204; Y10T29/49208; Y10T29/4921; Y10T29/49211; Y10T29/49213
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
119 words
In a method of rigidly mounting an electrically conductive anode support member to a metallic wall of an electrolytic cell to prevent leakage of anolyte from the cell, said anode support member having connected means at one end for engaging with an opening in the cell wall, the improvement comprising the steps of (a) surrounding the support member with a metallic plate at a position proximal to the connecting means of said support member, (b) rigidly coupling by welding the plate to the support member, (c) mounting the support member in the cell wall opening whereby the plate fits flush against the cell wall making electrical contact with said wall, and (d) welding the plate to the cell wall.
Claim 2
Dependent Claim
119 words
In a method of rigidly mounting an electrically conductive anode support member to a metallic wall of an electrolytic cell to prevent leakage of anolyte from the cell, said anode support member having connected means at one end for engaging with an opening in the cell wall, the improvement comprising the steps of (a) surrounding the support member with a metallic plate at a position proximal to the connecting means of said support member, (b) rigidly coupling by welding the plate to the support member, (c) mounting the support member in the cell wall opening whereby the plate fits flush against the cell wall making electrical contact with said wall, and (d) welding the plate to the cell wall.
Claim 3
Dependent Claim
32 words
The method of claim 1 wherein the surface of the metallic plate is distorted by the welding step and substantially restored to its original shape prior to mounting in the cell wall.
Claim 4
Dependent Claim
22 words
The method of claim 1 wherein the support member, the plate and the cell wall are composed of titanium or titanium alloys.
Claim 5
Dependent Claim
24 words
The method of claim 1 wherein the surface coating of the support member, the plate and the cell wall are titanium or titanium alloys.
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) | 1981-10-23 | 1982-04-24 | 1982-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-23 | 1986-04-24 | 1986-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-23 | 1990-04-24 | 1990-10-24 | $7700.00 | Window Closed / Lapsed |