Patent US4518474A successfully refreshed from Google Patents.
US4518474A
Expired / Lapsed
US
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Device for the electrolytic treatment of metal strip
Assignee: Individual
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Filing: 1984-05-07
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Granted: 1985-05-21
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Expires: 2004-05-07
Abstract
Abstract A device for the continuous electrolytic treatment of metal strip, in which the elementary electrolytic treatment cell consists of a hollow chamber of rectangular section through which the strip to be treated passes. Insoluble electrodes are disposed on both larger faces of the chamber, the electrical circuit being closed through the metal strip to be treated. The cell is immersed in the electrolyte, and the electrolyte is forced to flow through the treatment chamber by an ejector at the entry end of the chamber, which faces against the direction of strip movement. The treatment chamber is open at both ends to the free flow of electrolyte therethrough.
Inventors
- 👤 Maurizio Podrini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:02
CPC Classifications
C; C25; C25D; C25D7/00; C25D7/06; C25D7/0614; C25D7/0621
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A device for the continuous electrolytic treatment of metal strip, in which the elementary electrolytic treatment cell consists of a hollow chamber of rectangular section, through which the strip to be treated passes, and which has insoluble electrodes on both its larger faces, the electrical circuit being closed through the metal strip to be treated, characterized in that said elementary cell is immersed in the electrolyte, the forced flow of which within the treatment chamber is ensured by an ejector, the ejector is at the end of the cell the strip to be treated enters, the ejector feeds fresh electrolyte in a direction opposite the direction of strip movement thereby drawing electrolyte at high speed from the other end of the cell through the treatment chamber, and the treatment chamber is open at both ends to the free flow of electrolyte therethrough.
Claim 2
Independent Claim
142 words
A device for the continuous electrolytic treatment of metal strip, in which the elementary electrolytic treatment cell consists of a hollow chamber of rectangular section, through which the strip to be treated passes, and which has insoluble electrodes on both its larger faces, the electrical circuit being closed through the metal strip to be treated, characterized in that said elementary cell is immersed in the electrolyte, the forced flow of which within the treatment chamber is ensured by an ejector, the ejector is at the end of the cell the strip to be treated enters, the ejector feeds fresh electrolyte in a direction opposite the direction of strip movement thereby drawing electrolyte at high speed from the other end of the cell through the treatment chamber, and the treatment chamber is open at both ends to the free flow of electrolyte therethrough.
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) | 1988-05-20 | 1988-11-19 | 1989-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-20 | 1992-11-19 | 1993-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-20 | 1996-11-19 | 1997-05-21 | $7700.00 | Window Closed / Lapsed |