Patent US4846952A successfully refreshed from Google Patents.
US4846952A
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Flat plate electrolysis cell frame separator and method
Assignee: Dow Chemical Co
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Filing: 1988-07-15
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Granted: 1989-07-11
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Expires: 2008-07-15
Abstract
Abstract An electrolysis flat plate cell frame separating device for changing out one or more cells, gaskets and/or membranes from a stack in a flat plate membrane cell electrolyzer without having to shift other cells one at a time and a method of use.
Inventors
- 👤 Gary L. Gardner, Sr.
- 👤 John R. Pimlott
- 👤 Hiep D. Dang
- 👤 Roy L. Hicks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:17
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/70; C25B9/73; C25B15/00; C25B9/77
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
95 words
A separator device for removing one or more cell frame members, gaskets or members from a plurality of cell frame members comprising: a. at least a first bracket member for clamping a plurality of electrolysis cell frame members together; b. at least a second bracket member for clamping a second plurality of cell frame members together; and c. at least a first hydraulic cylinder with a hydraulic cylinder rod interposed between the first and second bracket members for separating the first and second brackets apart whereby the cell frames are moved away from each other.
Claim 2
Dependent Claim
95 words
A separator device for removing one or more cell frame members, gaskets or members from a plurality of cell frame members comprising: a. at least a first bracket member for clamping a plurality of electrolysis cell frame members together; b. at least a second bracket member for clamping a second plurality of cell frame members together; and c. at least a first hydraulic cylinder with a hydraulic cylinder rod interposed between the first and second bracket members for separating the first and second brackets apart whereby the cell frames are moved away from each other.
Claim 3
Dependent Claim
25 words
The separator of claim 1 including a threaded jack screw removably mounted to said second bracket member for adjustably moving against the hydraulic cylinder rod.
Claim 4
Dependent Claim
93 words
A process for removing one or more cell frame members, gaskets or membranes from a plurality of cell frame members comprising: a. clamping a first plurality of cell frame members together; b. clamping a second plurality of cell frame members together; c. interposing at least a first hydraulic cylinder with a hydraulic cylinder rod between the first and second plurality of cell frame members; and d. actuating the hydraulic cylinder to separate the first and second plurality of cell frame members apart whereby the cell frames members are moved away from each other.
Claim 5
Dependent Claim
93 words
A process for removing one or more cell frame members, gaskets or membranes from a plurality of cell frame members comprising: a. clamping a first plurality of cell frame members together; b. clamping a second plurality of cell frame members together; c. interposing at least a first hydraulic cylinder with a hydraulic cylinder rod between the first and second plurality of cell frame members; and d. actuating the hydraulic cylinder to separate the first and second plurality of cell frame members apart whereby the cell frames members are moved away from each other.
Claim 6
Dependent Claim
142 words
A shifter and flat plate electrolysis cell frame member removal device comprising: a. a first top bracket for clamping a plurality of cell frame members together; b. a second top bracket for clamping a second plurality of cell frame members together; c. a first top hydraulic cylinder for separating the two sets of plurality of cell members; d. a first top jack screw for taking up any gap between the top hydraulic cylinder and the top second bracket; e. a first bottom bracket for clamping a plurality of cell members together; f. a second bottom bracket for clamping a plurality of cell members together; g. a second bottom hydraulic cylinder for separating the two sets of plurality of cell members; and h. a second bottom jack screw for taking up any gap between the top hydraulic cylinder and the top second bracket.
Claim 7
Dependent Claim
142 words
A shifter and flat plate electrolysis cell frame member removal device comprising: a. a first top bracket for clamping a plurality of cell frame members together; b. a second top bracket for clamping a second plurality of cell frame members together; c. a first top hydraulic cylinder for separating the two sets of plurality of cell members; d. a first top jack screw for taking up any gap between the top hydraulic cylinder and the top second bracket; e. a first bottom bracket for clamping a plurality of cell members together; f. a second bottom bracket for clamping a plurality of cell members together; g. a second bottom hydraulic cylinder for separating the two sets of plurality of cell members; and h. a second bottom jack screw for taking up any gap between the top hydraulic cylinder and the top second bracket.
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) | 1992-07-10 | 1993-01-09 | 1993-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-10 | 1997-01-09 | 1997-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-10 | 2001-01-09 | 2001-07-11 | $7700.00 | Window Closed / Lapsed |