US4526668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for the electrolytic treatment of metal strip
Assignee: Individual
•
Filing: 1984-05-07
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Granted: 1985-07-02
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Expires: 2004-05-07
Abstract
Abstract Apparatus for the continuous electrolytic treatment of metal strip of the type having at least two separate vertically superposed chambers connected with each other by two vertical ducts the internal walls of which are formed by fixed electrodes. The electrolyte flows through these ducts, from the upper chamber into the lower one, the electrolyte being removed from the lower chamber and introduced into the upper chamber. The lower lips of the ducts extend below the surface of the electrolyte in the lower chamber. The ducts project downwardly into the lower chamber for at least half the height of the lower chamber.
Inventors
- 👤 Maurizio Podrini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:26
CPC Classifications
C; C25; C25F; C25F7/00; C25D; C25D7/00; C25D7/06; C25D7/0614; C25D7/0628
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
89 words
Apparatus for the continuous electrolytic treatment of metal strip of the type having at least two separate vertically superposed chambers connected with each other by means of two vertical ducts the internal walls of which are formed by fixed electrodes, through which the electrolyte flows from the upper chamber into the lower one, and means outside said ducts for removing electrolyte from the lower chamber and introducing it into the upper chamber, the lower lips of said ducts extending below the surface of the electrolyte in the lower chamber.
Claim 2
Dependent Claim
89 words
Apparatus for the continuous electrolytic treatment of metal strip of the type having at least two separate vertically superposed chambers connected with each other by means of two vertical ducts the internal walls of which are formed by fixed electrodes, through which the electrolyte flows from the upper chamber into the lower one, and means outside said ducts for removing electrolyte from the lower chamber and introducing it into the upper chamber, the lower lips of said ducts extending below the surface of the electrolyte in the lower chamber.
Claim 3
Dependent Claim
32 words
Apparatus for the continuous electrolytic treatment of metal strip according to claim 1, wherein said ducts project downwardly into the lower chamber for at least half the height of said lower chamber.
Claim 4
Dependent Claim
29 words
Apparatus for the continuous electrolytic treatment of metal strip according to claim 1, wherein the upper surface of the electrolyte in the lower chamber is exposed to the atmosphere.
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) | 1988-07-01 | 1988-12-31 | 1989-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-01 | 1992-12-31 | 1993-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-01 | 1996-12-31 | 1997-07-02 | $7700.00 | Window Closed / Lapsed |