US3880744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the electrochemical treatment of metal strip
Assignee: Kalle GmbH and Co KG
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Filing: 1973-07-11
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Granted: 1975-04-29
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Expires: 1993-07-11
Abstract
Abstract This invention relates to an apparatus for the electrochemical treatment of metal strip, which comprises an electrolyte bath means having at least two compartments and provided with at least one electrode, guide means for guiding the strip through the electrolyte bath means, at least one duct means through which, in operation, the strip travels past the electrode, and means for maintaining different liquid levels in different compartments.
Inventors
- 👤 Walter Idstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:51
CPC Classifications
C; C25; C25D; C25D7/00; C25D7/06; C25D7/0614
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
157 words
An apparatus for the electrochemical treatment of metal strip which comprises an electrolyte bath means having two compartments, one compartment being the main compartment and the other being a common compartment, and provided with two electrodes, a guide roller for guiding the sTrip through the electrolyte bath means, two duct means arranged in a V-form above the guide roller, one upstream and one downstream of the guide roller in the path of travel of the strip, through which duct means, in operation, the strip travels past the electrodes in a straight line toward said guide roller and in a straight line from said guide roller, means connecting the lower ends of the two duct means to the common compartment separate from the main compartment of the electrolyte bath to which the upper ends of the duct means are connected, and means for maintaining a liquid level in the common compartment lower than that in the main compartment.
Claim 2
Independent Claim
157 words
An apparatus for the electrochemical treatment of metal strip which comprises an electrolyte bath means having two compartments, one compartment being the main compartment and the other being a common compartment, and provided with two electrodes, a guide roller for guiding the sTrip through the electrolyte bath means, two duct means arranged in a V-form above the guide roller, one upstream and one downstream of the guide roller in the path of travel of the strip, through which duct means, in operation, the strip travels past the electrodes in a straight line toward said guide roller and in a straight line from said guide roller, means connecting the lower ends of the two duct means to the common compartment separate from the main compartment of the electrolyte bath to which the upper ends of the duct means are connected, and means for maintaining a liquid level in the common compartment lower than that in the main compartment.
Claim 3
Dependent Claim
61 words
An apparatus as claimed in claim 1 in which the common compartment to which the lower ends of the duct means are connected lies between the two duct means, and including means whereby the part of the apparatus comprising the duct means, the said common compartment and the guide roller may be raised from the main compartment of the electrolyte bath.
Claim 4
Dependent Claim
31 words
An apparatus as claimed in claim 1 wherein the distance between the electrode and the path of travel of the strip is in the range of about 1 to 5 cm.
References Cited (Backward Citations)
US1590599A
Cited
US2930739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |