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US3928167A
Expired / Lapsed
US
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Improvements in methods of producing electrolytic anode assemblies
Assignee: Rhone Progil SA
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Filing: 1974-05-15
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Granted: 1975-12-23
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Expires: 1994-05-15
Abstract
Abstract Methods are provided of producing 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 film-forming metal, a good electrical contact being ensured between the sheath and the core.
Inventors
- 👤 Pierre Buoy
- 👤 Daniel Masure
- 👤 Paul Collon
- 👤 Jean-Marie Pigeaud
- 👤 Bernard Sartre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:36
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/60; C25B9/63; C25B9/65
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
155 words
A METHOD OF PROVIDING A REPLACEABLE ANODE ASSEMBLY IN AN ELECTROLYTIC DIAPHRAGM CELL, SAID 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 A FILM-FORMING NETAL, SAID ANODES BEING SECURED TO THE BASE OF THE CELL BY MEANS OF EXTENDED PORTIONS WHICH PASS THROUGH THE BASE, SAID EXTENDED PORTIONS COMPRISING A CORE MADE OF A METAL WHICH IS A GOOD ELECTRICAL CONDUCTOR, WHICH CORE IS COVERED BY A SHEATH MADE OF A FILM-FORMING METAL, A GOOD ELECTRICAL CONTACT BEING ENSURED BETWEEN THE SHEATH AND THE CORE, SAID BASE OF THE CELL BEING OF AN ELECTROCONDUCTIVE METAL, WHICH BASE IS PROTECTED BY A SHEET OF FILM-FORMING METAL, SAID CORE OF SAID EXTENDED PORTIONS IS EXPOSED WHERE IT PASSES THROUGH THE BASE OF SAID CELL, CHARACTERIZED IN THAT SEALING BETWEEN SAID ANODE AND SAID BASE IS EFFECTED BY WELD-
Claim 2
Independent Claim
155 words
A METHOD OF PROVIDING A REPLACEABLE ANODE ASSEMBLY IN AN ELECTROLYTIC DIAPHRAGM CELL, SAID 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 A FILM-FORMING NETAL, SAID ANODES BEING SECURED TO THE BASE OF THE CELL BY MEANS OF EXTENDED PORTIONS WHICH PASS THROUGH THE BASE, SAID EXTENDED PORTIONS COMPRISING A CORE MADE OF A METAL WHICH IS A GOOD ELECTRICAL CONDUCTOR, WHICH CORE IS COVERED BY A SHEATH MADE OF A FILM-FORMING METAL, A GOOD ELECTRICAL CONTACT BEING ENSURED BETWEEN THE SHEATH AND THE CORE, SAID BASE OF THE CELL BEING OF AN ELECTROCONDUCTIVE METAL, WHICH BASE IS PROTECTED BY A SHEET OF FILM-FORMING METAL, SAID CORE OF SAID EXTENDED PORTIONS IS EXPOSED WHERE IT PASSES THROUGH THE BASE OF SAID CELL, CHARACTERIZED IN THAT SEALING BETWEEN SAID ANODE AND SAID BASE IS EFFECTED BY WELD-
Claim 3
Dependent Claim
39 words
A method in accordance to claim 1, whereby the core of said extended portions of said anode where it passes through the base of said cell is gripped by the metal of said base by shrink-fitting by temperature difference.
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) | 1978-12-22 | 1979-06-23 | 1979-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-22 | 1983-06-23 | 1983-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-22 | 1987-06-23 | 1987-12-23 | $7700.00 | Window Closed / Lapsed |