Patent US4026782A successfully refreshed from Google Patents.
US4026782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolysis cell having bipolar elements
Assignee: Rhone Poulenc Industries SA
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Filing: 1975-07-29
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Granted: 1977-05-31
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Expires: 1995-07-29
Abstract
Abstract The invention relates to an electrolysis cell having bipolar elements, characterized in that the recess between the bipolar elements and the impermeability between any two consecutive electrode frames are ensured by the peripheral surfaces opposite the said frames which have, on their most external part, a non-deformable rigid face forming a plane of contact resting against the plane of contact of the adjacent frame. At least one of the opposing surfaces has at least one recess in which at least one sealing member is arranged. The cell is particularly useful for the electrolysis of solutions of alkali salts.
Inventors
- 👤 Pierre Bouy
- 👤 Hubert de Lachaux
- 👤 Michel Conan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:43
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/70; C25B9/73; C25B9/75; C25B11/00; C25B11/02; C25B11/036; C25B9/77
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
138 words
An electrolysis cell having bipolar elements arranged side by side, having at least two peripheral frames surrounding at least one compartment of the electrolysis zone, and being equipped with a diaphragm, wherein the impermeable connection between two consecutive frames is ensured by intimate contact of their opposing peripheral surfaces which have, on their most external section, a non-deformable rigid face forming a plane of contact resting on the plane of contact of the adjacent frame, one at least of the opposite surfaces having at least one recess in which at least one elastic sealing member is arranged, and in that said diaphragm rests against the plane of contact of a frame opposite a recess in the adjacent frame and is kept in position by an elastically deformable sealing member arranged in the said recess of an adjacent frame.
Claim 2
Dependent Claim
138 words
An electrolysis cell having bipolar elements arranged side by side, having at least two peripheral frames surrounding at least one compartment of the electrolysis zone, and being equipped with a diaphragm, wherein the impermeable connection between two consecutive frames is ensured by intimate contact of their opposing peripheral surfaces which have, on their most external section, a non-deformable rigid face forming a plane of contact resting on the plane of contact of the adjacent frame, one at least of the opposite surfaces having at least one recess in which at least one elastic sealing member is arranged, and in that said diaphragm rests against the plane of contact of a frame opposite a recess in the adjacent frame and is kept in position by an elastically deformable sealing member arranged in the said recess of an adjacent frame.
Claim 3
Dependent Claim
25 words
An electrolysis cell having bipolar elements according to claim 1, wherein at least one elastically deformable sealing member is arranged in at least one recess.
Claim 4
Dependent Claim
34 words
An electrolysis cell having bipolar elements according to claim 2, wherein a permanently deformable sealing member is arranged in a recess of an adjacent frame above the diaphragm and the elastically deformable sealing member.
Claim 5
Dependent Claim
79 words
An electrolysis cell having bipolar elements according to claim 1, wherein each bipolar element has a peripheral frame, one face of which comprises a plane of contact and the other face comprises a plane of contact, and at least one recess having at least one sealing member, the face of an element comprising a plane of contact opposite the face of another element comprising a plane of contact and at least one recess having at least one sealing member.
Claim 6
Dependent Claim
47 words
An electrolysis cell having bipolar elements according to claim 1, wherein each anode compartment has a peripheral frame containing on each face opposite the corresponding cathode compartment, at least one plane of contact and at least one recess in which is placed at least one sealing member.
Claim 7
Dependent Claim
29 words
An electrolysis cell having bipolar elements according to claim 1, wherein at least one frame has a projecting section which just fits in a recess of the adjacent frame.
Claim 8
Dependent Claim
32 words
An electrolysis cell having bipolar elements according to claim 5, wherein each cathode frame opposite each anode frame has a plane of contact which extends opposite each recess in the anode frame.
Claim 9
Dependent Claim
34 words
An electrolysis cell having bipolar elements according to claim 1, wherein at least one elastically deformable sealing member is placed inside the recess in a seating adapted to the configuration of the said member.
Claim 10
Dependent Claim
23 words
An electrolysis cell having bipolar elements according to claim 1, wherein at least one elastically deformable sealing member consists of a toroidal member.
Claim 11
Dependent Claim
23 words
An electrolysis cell having bipolar elements according to claim 1, wherein at least one elastically deformable sealing member consists of a rectangular member.
Claim 12
Dependent Claim
23 words
An electrolysis cell having bipolar elements according to claim 1, wherein at least one elastically deformable sealing member consists of a flat member.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-30 | 1980-11-29 | 1981-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-30 | 1984-11-29 | 1985-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-30 | 1988-11-29 | 1989-05-31 | $7700.00 | Window Closed / Lapsed |