Patent US4978438A successfully refreshed from Google Patents.
US4978438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic cell
Assignee: De Nora Permelec Ltd
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Filing: 1989-05-16
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Granted: 1990-12-18
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Expires: 2009-05-16
Abstract
Abstract The present invention is directed toward an electrolytic cell for treating fluids with gases that are evolved by electrolysis comprising an anode compartment separated from a cathode compartment by a diaphragm, and a gas-permeable and liquid-impermeable window formed in the anode and the cathode compartment, or formed in the anode or the cathode compartment, wherein the window is formed such that a gas evolved in the anode or cathode compartment or gases evolved in these two compartments are allowed to pass through the window to make contact with a fluid to be treated, said fluid being located outside said electrolytic cell, thereby treating the fluid.
Inventors
- 👤 Takayuki Shimamune
- 👤 Yoshinori Nishiki
- 👤 Shuji Nakamatsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:18
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/46104; C02F1/467; C02F1/4672; C02F1/4674; C02F1/72; C02F1/76; C02F1/763; C02F1/46109; C02F2001/46133; C02F2001/46138; C02F2001/46142; C02F2201/00; C02F2201/46; C02F2201/461; C02F2201/46105; C02F2201/46115; C02F2201/46195
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
108 words
An electrolytic cell comprising: an anode compartment separated from a cathode compartment by a diaphragm; and a gas-permeable and liquid-impermeable window formed in said anode and said cathode compartment, or formed in said anode or said cathode compartment, wherein said window is formed such that a gas evolved in said anode or cathode compartment or gases evolved in these two compartments are allowed to pass through said window to make contact with a fluid to be treated, said fluid being located outside said electrolytic cell and flowing through a pipe having a cut-out formed to ensure contact between said fluid and said window, to thereby treat said fluid.
Claim 2
Dependent Claim
108 words
An electrolytic cell comprising: an anode compartment separated from a cathode compartment by a diaphragm; and a gas-permeable and liquid-impermeable window formed in said anode and said cathode compartment, or formed in said anode or said cathode compartment, wherein said window is formed such that a gas evolved in said anode or cathode compartment or gases evolved in these two compartments are allowed to pass through said window to make contact with a fluid to be treated, said fluid being located outside said electrolytic cell and flowing through a pipe having a cut-out formed to ensure contact between said fluid and said window, to thereby treat said fluid.
Claim 3
Dependent Claim
39 words
An electrolytic cell as in claim 1, wherein said window comprises a porous metallic or ceramic material, and a layer of fluorine resin is coated on a surface of said metallic or ceramic material to render said window hydrophobic.
Claim 4
Dependent Claim
117 words
An electrolytic cell comprising: an anode compartment separated from a cathode compartment by a diaphragm; and a gas-permeable and liquid-impermeable window formed in said anode and said cathode compartment, or formed in said anode or said cathode compartment, wherein said window is formed such that a gas evolved in said anode or cathode compartment or gases evolved in these two compartments are allowed to pass through said window to make contact with a fluid to be treated, said fluid being located outside said electrolytic cell and being treated by totally submerging said electrolytic cell in said fluid such that the gas or gases evolved are released into said fluid through said window, to thereby treat said fluid.
Claim 5
Dependent Claim
117 words
An electrolytic cell comprising: an anode compartment separated from a cathode compartment by a diaphragm; and a gas-permeable and liquid-impermeable window formed in said anode and said cathode compartment, or formed in said anode or said cathode compartment, wherein said window is formed such that a gas evolved in said anode or cathode compartment or gases evolved in these two compartments are allowed to pass through said window to make contact with a fluid to be treated, said fluid being located outside said electrolytic cell and being treated by totally submerging said electrolytic cell in said fluid such that the gas or gases evolved are released into said fluid through said window, to thereby treat said fluid.
Claim 6
Dependent Claim
39 words
An electrolytic cell as in claim 3, wherein said window comprises a porous metallic or ceramic material, and a layer of fluorine resin is coated on a surface of said metallic or ceramic material to render said window hydrophobic.
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) | 1993-12-17 | 1994-06-18 | 1994-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-17 | 1998-06-18 | 1998-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-17 | 2002-06-18 | 2002-12-18 | $7700.00 | Window Closed / Lapsed |