US3891531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic diaphragm cells including current connection means between the cell base and anode
Assignee: Rhone Progil SA
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Filing: 1972-12-19
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Granted: 1975-06-24
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Expires: 1992-12-19
Abstract
Abstract Electrolytic diaphragm cells are provided comprising a plurality of vertical substantially flat and hollow anodes formed, as regards at least one of their two substantially parallel faces, by a sheet of a film-forming metal, said anodes being secured to the base of the cell by means of extended portions which pass through the base, characterized in that the extended portions comprise a core made of a metal which is a good electrical conductor, which core is covered by a sheath made of a filmforming metal, a good electrical contact being ensured between the sheath and the core. The core of the extended portions is exposed where it passes through the base of the cell, with the electrical connection between the base and the core comprising resilient metal parts arranged between the core and the base.
Inventors
- 👤 Pierre Bouy
- 👤 Daniel Masure
- 👤 Paul Collon
- 👤 Jean-Marie Pigeaud
- 👤 Bernard Sartre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:22
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/60; C25B9/65; C25B9/63
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
156 words
AN ELECTROLYTIC DIAPHRAG CELL COMPRISING A PLURALITY OF VERTICAL SUBSTANTIALLY FLAT AND HOLLOW ANODES FORMED, AS REGARDS AT LEAST ONE OF THEIR TWO SUBSTANTIALLY PARALLEL FACES, BY A SHEET OF FILM-FORMING METAL, SAID ANODES BEING SECURED TO THE BASE OF THE CELL BY MEANS OF EXTENDED PORTIONS WHICH PASS THROUGH THE BASE, CHARACTERIZED IN THAT THE EXTENDED PORTIONS COMPRISE A CORE MADE OF A METAL WHICH IS A GOOD ELECTRICAL CONDUCTOR, WHICH CORE IS COVERD BY A SHEATH MADE OF A FILMFORMING METAL, A GOOD ELECTRICAL CONTACT BEING ENSURED BETWEEN THE SHEATH AND THE CORE, SAID BASE OF THE CELL BEING OF METAL, WHICH BASE IS COVERED WITH A SHEET OF FILM-FORMING METAL, SAID CORE OF SAID EXTENDED PORTIONS IS EXPOSED WHERE IT PASSES THROUGH THE BASE OF SAID CELL, THE ELECTRICAL CONNECTION IS MADE BY MEANS OF METAL PARTS ARRANGED BETWEEN SAID CORE AND SAID BASE AND RESTING RESILIENTLY AGAINST SAID CORE AND SAID BASE.
Claim 2
Dependent Claim
156 words
AN ELECTROLYTIC DIAPHRAG CELL COMPRISING A PLURALITY OF VERTICAL SUBSTANTIALLY FLAT AND HOLLOW ANODES FORMED, AS REGARDS AT LEAST ONE OF THEIR TWO SUBSTANTIALLY PARALLEL FACES, BY A SHEET OF FILM-FORMING METAL, SAID ANODES BEING SECURED TO THE BASE OF THE CELL BY MEANS OF EXTENDED PORTIONS WHICH PASS THROUGH THE BASE, CHARACTERIZED IN THAT THE EXTENDED PORTIONS COMPRISE A CORE MADE OF A METAL WHICH IS A GOOD ELECTRICAL CONDUCTOR, WHICH CORE IS COVERD BY A SHEATH MADE OF A FILMFORMING METAL, A GOOD ELECTRICAL CONTACT BEING ENSURED BETWEEN THE SHEATH AND THE CORE, SAID BASE OF THE CELL BEING OF METAL, WHICH BASE IS COVERED WITH A SHEET OF FILM-FORMING METAL, SAID CORE OF SAID EXTENDED PORTIONS IS EXPOSED WHERE IT PASSES THROUGH THE BASE OF SAID CELL, THE ELECTRICAL CONNECTION IS MADE BY MEANS OF METAL PARTS ARRANGED BETWEEN SAID CORE AND SAID BASE AND RESTING RESILIENTLY AGAINST SAID CORE AND SAID BASE.
Claim 3
Dependent Claim
26 words
An electrolytic diaphragm cell accordding to claim 1, wherein said anode rests on said base by means of an appended washer resting on a toric seal.
Claim 4
Dependent Claim
32 words
AN ELECTROLYTIC DIAPHRAGM CELL ACCORDING TO CLAIM 1, WHEREIN SAID EXTENDED POTION IS PROVIDED WITH A CHANNEL COMMUNICATING WITH THE TOP OF SAID BASE AND A POINT OF DISCHARGE BELOW SAID BASE.
Claim 5
Dependent Claim
35 words
An electrolytic diaphragm cell according to claim 1, wherein said sheet of film-forming metal covering said metal base is welded to a washer-shaped member, attached to said sheath, at raised portions to effect a seal.
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) | 1978-06-23 | 1978-12-23 | 1979-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-23 | 1982-12-23 | 1983-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-23 | 1986-12-23 | 1987-06-24 | $7700.00 | Window Closed / Lapsed |