US4415424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for supply and discharge of liquid electrolyte for an electrolyzer of filterpress type
Assignee: Creusot Loire SA
•
Filing: 1981-12-28
•
Granted: 1983-11-15
•
Expires: 2001-12-28
Abstract
Abstract A device for supply or discharge of electrolyte for an electrolyzer of filterpress type has several compartments fed through channels (3) which open out into a common tranquilization chamber (4) of thin cross-section, which in turn is fed with electrolyte by way of a duct twisted, for example, into a spiral (51) of small cross-section.
Inventors
- 👤 Gerard Pere
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:33
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/46104; C25; C25B; C25B15/00; C25B15/08; C25B9/00; C25B9/07; C25B9/70; C25B9/73; C02F1/46109; C02F2001/46152; C02F2201/00; C02F2201/46; C02F2201/461; C02F2201/46105; C02F2201/4611; C02F2201/46115
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
179 words
A device for supply and discharge of electrolyte for an electrolyzer of filterpress type, including, for one and the same set of cells placed side by side: (a) at least one electrolyte inlet circuit common to the said set, from which leave channels feeding separately each anodic compartment and each cathodic compartment; (b) an anolyte outlet circuit common to the said set, at which terminate channels connected separately to each anodic compartment; (c) a catholyte outlet circuit common to the said set, at which terminate channels connected separately to each cathodic compartment; (d) one of said circuits comprising at least one tranquilization chamber (4) in which terminate all of said channels (3) associated with said circuit, said tranquilization chamber being of small cross-section and being connected to the general electrolyte inlet or outlet by a duct (51) exhibiting at least one portion of narrow shape twisted so as to confer upon said portion of said duct a great length and a small cross-section, and created in the body of a cylinder (6) bounding the inside of said tranquilization chamber.
Claim 2
Independent Claim
179 words
A device for supply and discharge of electrolyte for an electrolyzer of filterpress type, including, for one and the same set of cells placed side by side: (a) at least one electrolyte inlet circuit common to the said set, from which leave channels feeding separately each anodic compartment and each cathodic compartment; (b) an anolyte outlet circuit common to the said set, at which terminate channels connected separately to each anodic compartment; (c) a catholyte outlet circuit common to the said set, at which terminate channels connected separately to each cathodic compartment; (d) one of said circuits comprising at least one tranquilization chamber (4) in which terminate all of said channels (3) associated with said circuit, said tranquilization chamber being of small cross-section and being connected to the general electrolyte inlet or outlet by a duct (51) exhibiting at least one portion of narrow shape twisted so as to confer upon said portion of said duct a great length and a small cross-section, and created in the body of a cylinder (6) bounding the inside of said tranquilization chamber.
Claim 3
Dependent Claim
33 words
A device for supply and discharge of electrolyte according to claim 1, wherein said tranquilization chamber (4) is a semi-annular chamber of thin cross-section in the form of an arc of a circle.
Claim 4
Dependent Claim
25 words
A device for supply and discharge of electrolyte according to claim 1, wherein said duct (51) emerges in the middle of said tranquilization chamber (4).
Claim 5
Dependent Claim
101 words
A device for supply and discharge of electrolyte according to claim 1 or claim 3, intended for an electrolyzer created in the form of a number of packs placed side by side, comprising one tranquilization chamber (4,42, . . . 411,412) and one twisted duct (51,52, . . . 511,512) per pack, said tranquilization chambers all communicating, and said cylinder (6) being common to all of the packs and being pierced with longitudinal channels (9,92, . . . 911) which communicate end to end with one another and feed with electrolyte the said twisted ducts (51,52, . . . 511, 512).
Claim 6
Dependent Claim
55 words
A device for supply and discharge according to claim 4, wherein communication between the chambers relating to two adjacent packs is effected by one or more passages (17) pierced through a piece of insulation (16) positioned at the bottom of the electrode plates (14) which connect the said adjacent packs with respect to one another.
Claim 7
Dependent Claim
38 words
A device according to claim 4, wherein said tranquilization chamber (412) relating to the last pack ends in a portion (4121) of enlarged cross-section in direct electical contact with the electrode located at the end of said pack.
Claim 8
Independent Claim
29 words
A device for supply and discharge according to any one of claims 1 to 3, wherein at least some of said twisted duct or ducts have a spiral shape.
Claim 9
Independent Claim
63 words
A device for supply and discharge according to any one of claims 1 to 3, wherein said twisted duct or ducts consist of a series of concentric tubes (22, 23, 24 and 25, 26, 27) separated by thin gaps and open alternately at each end so as to create a labyrinth of narrow cross-section through which the electrolyte flows along a sinuous path.
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) | 1986-11-14 | 1987-05-16 | 1987-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-14 | 1991-05-16 | 1991-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-14 | 1995-05-16 | 1995-11-15 | $7700.00 | Window Closed / Lapsed |