Patent US4396484A successfully refreshed from Google Patents.
US4396484A
Expired / Lapsed
US
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Electrolyzer with temperature-stable frame structure
Assignee: Creusot Loire SA
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Filing: 1982-01-15
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Granted: 1983-08-02
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Expires: 2002-01-15
Abstract
Abstract An electrolyzer cell of the filter-press type intended to operate under high pressure and at high temperature is constructed of spacing frames (4) for supporting and joining the electrodes and the diaphrams (1). Each frame is constituted by several portions (41 to 44), each held at a fixed point (61 to 64) and slidingly joined to one another.
Inventors
- 👤 Gerard Pere
- 👤 Michel Largy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:09
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/60; C25B9/63; C25B9/70; C25B9/73; C25B9/77
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
62 words
Electrolyzer of the filter-press type, comprising spacing frames for supporting and joining electrodes and diaphragms, each of said frames being constituted by at least two portions assembled together for relative longitudinal sliding movement to accommodate expansion resulting from temperature changes, each of said portions including a fixed point for preventing deformation thereat upon expansion of said frames with respect to said electrodes.
Claim 2
Dependent Claim
62 words
Electrolyzer of the filter-press type, comprising spacing frames for supporting and joining electrodes and diaphragms, each of said frames being constituted by at least two portions assembled together for relative longitudinal sliding movement to accommodate expansion resulting from temperature changes, each of said portions including a fixed point for preventing deformation thereat upon expansion of said frames with respect to said electrodes.
Claim 3
Dependent Claim
21 words
Electrolyzer according to claim 1, wherein the said fixed point is located in the median plane of the corresponding frame portion.
Claim 4
Dependent Claim
33 words
Electrolyzer according to claim 1 or 2, of the type equipped with diaphragms mounted in a rigid frame, wherein each rigid frame is mounted slidingly in a recess of the corresponding spacing frame.
Claim 5
Dependent Claim
12 words
Electrolyzer according to claim 1, comprising sealing elements in said sliding connections.
Claim 6
Dependent Claim
46 words
Electrolyzer according to claim 1 or 2, of the type provided with distributor and collector grooves, wherein the connection between successive sections of said distributor and collector grooves is effected through spaces for permitting relative sliding movement between the two corresponding frame portions upon expansion thereof.
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) | 1986-08-01 | 1987-01-31 | 1987-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-01 | 1991-01-31 | 1991-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-01 | 1995-01-31 | 1995-08-02 | $7700.00 | Window Closed / Lapsed |