US4134805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for electrolysis
Assignee: Individual
•
Filing: 1977-09-06
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Granted: 1979-01-16
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Expires: 1997-09-06
Abstract
Abstract An electrolysis cell having a housing with an inlet and an outlet for a through-flowing electrolyte and at least three monopolar electrodes, each comprising plates fastened on a common carrier in parallel array. The plates of one polarity extend into the gaps formed between the plates of the other polarity and at least one electrode to on polarity is disposed between two electrodes of the other polarity.
Inventors
- 👤 Hanns Frohler
- 👤 Erwin Rossberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:00
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/17
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
72 words
An electrolysis cell having a housing with an inlet and an outlet for a through-flowing electrolyte and at least three monopolar electrode packs each comprising plates fastened on a common carrier in parallel array wherein the plates of one polarity extend into the gaps formed between the plates of the other polarity and wherein at least one electrode pack of one polarity is disposed between two electrode packs of the other polarity.
Claim 2
Dependent Claim
72 words
An electrolysis cell having a housing with an inlet and an outlet for a through-flowing electrolyte and at least three monopolar electrode packs each comprising plates fastened on a common carrier in parallel array wherein the plates of one polarity extend into the gaps formed between the plates of the other polarity and wherein at least one electrode pack of one polarity is disposed between two electrode packs of the other polarity.
Claim 3
Dependent Claim
46 words
The electrolysis cell as claimed in claim 1 wherein said at least one electrode pack comprises a plurality of individual electrode plates having symmetrically disposed circular cut-outs and at least two sleeves received through the cut-outs to tightly join the plates to form a compact unit.
Claim 4
Dependent Claim
31 words
The electrolysis cell as claimed in claim 2 wherein the sleeves have an external screw thread and further comprising threaded rings for tightly securing the individual electrode plates on the sleeves.
Claim 5
Dependent Claim
33 words
The electrolysis cell as claimed in claim 3 wherein the threaded rings are split and further comprising a tightening screw for tightly pressing their internal thread upon the external thread of the sleeves.
Claim 6
Dependent Claim
27 words
The electrolysis cell as claimed in claim 2 wherein the sleeves have annular superelevations projecting vertically from their periphery, to which the individual electrode plates are welded.
Claim 7
Dependent Claim
20 words
The electrolysis cell as claimed in claim 2 wherein the sleeves are tightly joined to copper bars as current feeders.
Claim 8
Dependent Claim
21 words
The electrolysis cell as claimed in claim 6 wherein the copper bars used as current feeders are screwed to the sleeves.
Claim 9
Dependent Claim
17 words
The electrolysis cell as claimed in claim 3 wherein said at least one electrode is anodically connected.
Claim 10
Dependent Claim
32 words
The electrolysis cell as claimed in claim 8 wherein the individual electrode plates, the sleeves and the threaded ring comprise corrosion-proof and/or electrochemically passivatable material or are coated with such a material.
Claim 11
Dependent Claim
25 words
The electrolysis cell as claimed in claim 9 wherein the electrode plates, the sleeves and the threaded rings comprise titanium or are coated with titanium.
Claim 12
Dependent Claim
18 words
The electrolysis cell as claimed in claim 1 wherein said at least one electrode pack is cathodically connected.
Claim 13
Dependent Claim
18 words
The electrolysis cell as claimed in claim 11, wherein the cell housing is in electrical connection with anodes.
Claim 14
Dependent Claim
15 words
The electrolysis cell as claimed in claim 12 wherein the cell housing comprises passivatable metal.
Claim 15
Dependent Claim
14 words
The electrolysis cell as claimed in claim 13 wherein the cell housing comprises titanium.
Claim 16
Dependent Claim
20 words
The electrolysis cell as claimed in claim 1 wherein the cell housing comprises a truncatopyramidal cover and a truncatopyramidal bottom.
Claim 17
Dependent Claim
32 words
The electrolysis cell as claimed in claim 15 further comprising flanges defining an inlet and an outlet for the electrolyte in the bottom and in the cover of the cell housing respectively.
Claim 18
Dependent Claim
47 words
The electrolysis cell as claimed in claim 1 wherein the electrode packs are disposed in the cell housing such that the electrode plates stand vertically and the electrolyte flows vertically upwardly and uniformly over the entire cell cross section through the interstices formed by the electrode plates.
Claim 19
Dependent Claim
39 words
The use of the electrolysis cell as claimed in claim 1 for electrolysis installations formed of a plurality of series-connected cells through which the electrolyte flows in parallel, for the production of alkali chlorates, alkali persulfates and alkali superphosphates.
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) | 1982-01-15 | 1982-07-17 | 1983-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-15 | 1986-07-17 | 1987-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-15 | 1990-07-17 | 1991-01-16 | $7700.00 | Window Closed / Lapsed |