Patent US3299606A successfully refreshed from Google Patents.
Patent US4003380A successfully refreshed from Google Patents.
US4898653A
Expired / Lapsed
US
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Combination electrolysis cell seal member and membrane tentering means
Assignee: Dow Chemical Co
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Filing: 1988-09-26
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Granted: 1990-02-06
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Expires: 2008-09-26
Abstract
Abstract A combination seal and membrane tentering member suitable for use in an electrolytic cell of the filter press type. The seal/tentering member for a filter press type electrolytic cell includes an inflatable gasket member interposed between a first and second insulator members, said insulator members having a recess defining a compartment adapted for receiving the inflatable gasket member, said insulator members interposed between a pair of cell frame flanges and a membrane member interposed between the insulator members. Aqueous alkali metal chloride solution may be electrolyzed in the electrolytic cell.
Inventors
- 👤 Gregory J. E. Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:06
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/70; C25B9/73; H; H01; H01M; H01M8/00; H01M8/02; H01M8/0271; H01M8/0273; C25B9/77; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
71 words
A combination sealing means and tentering means for a filter press type electrolytic cell comprising: an inflatable gasket member interposed between a first and second insulator members, each insulator member having a recess such that when the insulators are assembled together define a compartment adapted for receiving the inflatable gasket member, said insulator members interposed between a pair of cell frame flanges and a membrane member interposed between the insulator members.
Claim 2
Dependent Claim
71 words
A combination sealing means and tentering means for a filter press type electrolytic cell comprising: an inflatable gasket member interposed between a first and second insulator members, each insulator member having a recess such that when the insulators are assembled together define a compartment adapted for receiving the inflatable gasket member, said insulator members interposed between a pair of cell frame flanges and a membrane member interposed between the insulator members.
Claim 3
Dependent Claim
24 words
The gasket of claim 1 including a means for removably fastening the membrane member to a surface portion of one of the insulator members.
Claim 4
Dependent Claim
28 words
The gasket of claim 1 including a recess portion in a first side wall of at least one of the insulator members adapted for receiving a seal member.
Claim 5
Dependent Claim
17 words
The gasket of claim 3 wherein the seal member is at least one O-ring type seal member.
Claim 6
Dependent Claim
18 words
A cell assembly comprising at least two frame members, a separator and a sealing means of claim 1.
Claim 7
Independent Claim
126 words
A method of sealing an electrolytic cell comprising (a) providing a seal/tentering member comprising an inflatable gasket member interposed between a first and second insulator members, said insulator members having a recess defining a compartment adapted for receiving the inflatable gasket member, said insulator members interposed between a pair of cell frame flanges; (b) fastening a sheet-like separator against at least one of the insulator members of the seal/tentering member: (c) interposing the seal/tentering member with separator between at least a first frame member and a second frame member, the separator spacing apart an anode and a cathode compartments defined by the first and second frame members and the separator: and (d) compressing the seal/tentering member with separator and the first and second frame members together.
Claim 8
Independent Claim
126 words
A method of sealing an electrolytic cell comprising (a) providing a seal/tentering member comprising an inflatable gasket member interposed between a first and second insulator members, said insulator members having a recess defining a compartment adapted for receiving the inflatable gasket member, said insulator members interposed between a pair of cell frame flanges; (b) fastening a sheet-like separator against at least one of the insulator members of the seal/tentering member: (c) interposing the seal/tentering member with separator between at least a first frame member and a second frame member, the separator spacing apart an anode and a cathode compartments defined by the first and second frame members and the separator: and (d) compressing the seal/tentering member with separator and the first and second frame members together.
Claim 9
Independent Claim
159 words
A method of operating an electrolytic cell comprising (a) providing a seal/tentering member comprising an inflatable gasket member interposed between a first and second insulator members, said insulator members having a recess defining a compartment adapted for receiving the inflatable gasket member, said insulator members interposed between a pair of cell frame flanges; (b) fastening a sheet-like separator against at least one of the insulator members of the seal/tentering member; (c) interposing the seal/tentering member with separator between at least a first frame member and a second frame member, the separator spacing apart an anode and a cathode compartments defined by the first and second frame members and the separator; and (d) compressing the seal/tentering member with separator and the first and second frame members together; (e) feeding an aqueous alkali metal halide solution to the electrolytic cell; and (f) passing an electrical current from the anode to the cathode such that a halide is evolved at the anode.
Claim 10
Independent Claim
159 words
A method of operating an electrolytic cell comprising (a) providing a seal/tentering member comprising an inflatable gasket member interposed between a first and second insulator members, said insulator members having a recess defining a compartment adapted for receiving the inflatable gasket member, said insulator members interposed between a pair of cell frame flanges; (b) fastening a sheet-like separator against at least one of the insulator members of the seal/tentering member; (c) interposing the seal/tentering member with separator between at least a first frame member and a second frame member, the separator spacing apart an anode and a cathode compartments defined by the first and second frame members and the separator; and (d) compressing the seal/tentering member with separator and the first and second frame members together; (e) feeding an aqueous alkali metal halide solution to the electrolytic cell; and (f) passing an electrical current from the anode to the cathode such that a halide is evolved at the anode.
Claim 11
Dependent Claim
79 words
An assembly for a filter press type electrolytic cell comprising (a) at least two adjacent insulation members interposed between two electrolytic cell frame members, said insulation members having a recess therein defining a compartment when contacting each other for receiving an inflatable gasket member; (b) a fluid-inflatable gasket member interposed between the two adjacent insulation members within the compartment; and (c) a means for passing fluid in or out of said gasket for inflating or deflating said gasket member.
Claim 12
Dependent Claim
79 words
An assembly for a filter press type electrolytic cell comprising (a) at least two adjacent insulation members interposed between two electrolytic cell frame members, said insulation members having a recess therein defining a compartment when contacting each other for receiving an inflatable gasket member; (b) a fluid-inflatable gasket member interposed between the two adjacent insulation members within the compartment; and (c) a means for passing fluid in or out of said gasket for inflating or deflating said gasket member.
Claim 13
Dependent Claim
20 words
The cell assembly of claim 8 wherein insulators are diametrically opposed and "C-shaped" in configuration when viewed in cross section.
Claim 14
Dependent Claim
24 words
The cell assembly of claim 8 wherein at least one of the insulator members includes a flange portion for releasably fastening a membrane thereto.
Claim 15
Dependent Claim
18 words
The cell assembly of claim 10 including a means for releasably fastening a membrane to the flange portion.
References Cited (Backward Citations)
US1721407A
Cited
US2306160A
Cited
US2785824A
Cited
GB1078129A
Cited
US3378480A
Cited
GB1192245A
Cited
US3869375A
Cited
US3835017A
Cited
US3964932A
Cited
US3857773A
Cited
US4026782A
Cited
US4111779A
Cited
US4076609A
Cited
US4098670A
Cited
US4137144A
Cited
US4013535A
Cited
US4107023A
Cited
JPS5363284A
Cited
US4191627A
Cited
JPS53146272A
Cited
US4217200A
Cited
US4268373A
Cited
GB2013242A
Cited
US4139448A
Cited
US4219394A
Cited
US4342460A
Cited
US4207165A
Cited
DE2821983A1
Cited
US4253932A
Cited
US4175025A
Cited
US4274928A
Cited
US4188464A
Cited
US4268372A
Cited
US4197206A
Cited
US4175024A
Cited
JPS5638484A
Cited
US4342336A
Cited
US4279731A
Cited
US4313812A
Cited
US4381984A
Cited
US4390408A
Cited
US4332661A
Cited
US4431502A
Cited
US4441977A
Cited
EP0051380B1
Cited
US4344633A
Cited
JPS584926A
Cited
JPS5835272A
Cited
EP0080288A1
Cited
US4490231A
Cited
US4656104A
Cited
US4493759A
Cited
US4470608A
Cited
SU1082867A1
Cited
EP0118973A1
Cited
US4488946A
Cited
US4648953A
Cited
US4585527A
Cited
US4638109A
Cited
US4604331A
Cited
US4610765A
Cited
US4605483A
Cited
US4623599A
Cited
US4654134A
Cited
US4721555A
Cited
US4738905A
Cited
US4748092A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-05 | 1993-08-07 | 1994-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-05 | 1997-08-07 | 1998-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-05 | 2001-08-07 | 2002-02-06 | $7700.00 | Window Closed / Lapsed |