US4617101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkali metal chloride electrolyzing cell
Assignee: AGC Inc
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Filing: 1981-11-12
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Granted: 1986-10-14
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Expires: 2001-11-12
Abstract
Abstract An alkali metal chloride-electrolyzing cell comprises a cation-exchange membrane disposed between an anode and a cathode, characterized in that said cation-exchange membrane has on at least one side thereof a gas- and liquid-permeable, porous layer with no electrode activity, and at least one of an anode and a cathode is a voided flexible electrode having a more rigidity than that of said cation-exchange membrane, and said flexible electrode is designed to be forcibly deformed thereby closely contacting said cation-exchange membrane with the surface of each of said electrodes.
Inventors
- 👤 Kimihiko Sato
- 👤 Yasuo Sajima
- 👤 Makoto Nakao
- 👤 Junjiro Iwamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:39
CPC Classifications
C; C25; C25B; C25B11/00; C25B11/02; C25B11/03; C25B9/00; C25B9/17; C25B9/19
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
96 words
An alkali metal chloride-electrolyzing cell which comprises a cation-exchange membrane disposed between an anode and a cathode, characterized in that said cathode-exchange membrane has on at least one side thereof a gas- and liquid-permeable, porous layer which is non-conductive, and at least one of an anode and a cathode is a voided flexible electrode having more rigidity than that of said cation-exchange membrane and in electrical contact with a conductive support member, and said flexible electrode is designed to be forcibly deformed thereby closely contacting said cation-exchange membrane with the surface of each of said electrodes.
Claim 2
Dependent Claim
96 words
An alkali metal chloride-electrolyzing cell which comprises a cation-exchange membrane disposed between an anode and a cathode, characterized in that said cathode-exchange membrane has on at least one side thereof a gas- and liquid-permeable, porous layer which is non-conductive, and at least one of an anode and a cathode is a voided flexible electrode having more rigidity than that of said cation-exchange membrane and in electrical contact with a conductive support member, and said flexible electrode is designed to be forcibly deformed thereby closely contacting said cation-exchange membrane with the surface of each of said electrodes.
Claim 3
Dependent Claim
20 words
An alkali metal chloride electrolyzing cell as described in claim 1, wherein said conductive support is a conductive wavy member.
Claim 4
Dependent Claim
20 words
An alkali metal chloride electrolyzing cell as described in claim 1, wherein said conductive support is a conductive network member.
Claim 5
Dependent Claim
35 words
An alkali metal chloride electrolyzing cell as described in claim 1, wherein said conductive support is a conductive, composite structure comprising a conductive wavy member and a conductive network member laminated one over the other.
Claim 6
Dependent Claim
37 words
An alkali metal chloride electrolyzing cell as described in claim 1, wherein said anode and said cathode are flexible, and conductive supports supporting the anode and the cathode are disposed alternatively and not in an opposing arrangement.
Claim 7
Dependent Claim
20 words
An alkali metal chloride electrolyzing cell as described in claim 1, wherein said conductive support is a conductive cushioning support.
Claim 8
Dependent Claim
28 words
An alkali metal chloride electrolyzing cell as described in claim 8, wherein said conductive, cushioning support comprises a spring member such as spring, plate spring, or the like.
Claim 9
Dependent Claim
29 words
An alkali metal chloride electrolyzing cell as described in claim 1, wherein the thickness of the gas- and liquid-permeable porous layer is less than that of the cation-exchange membrane.
References Cited (Backward Citations)
US3674676A
Cited
GB1401290A
Cited
US3873437A
Cited
US4135996A
Cited
JPS5263873A
Cited
DE2652542A1
Cited
JPS5289589A
Cited
JPS5311199A
Cited
JPS5316371A
Cited
US4124458A
Cited
GB2007260A
Cited
US4341604A
Cited
US4343689A
Cited
US4343690A
Cited
US4319969A
Cited
JPS5569279A
Cited
US4457822A
Cited
US4381983A
Cited
US4411749A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-10-13 | 1990-04-14 | 1990-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-13 | 1994-04-14 | 1994-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-13 | 1998-04-14 | 1998-10-14 | $7700.00 | Window Closed / Lapsed |