US4347115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroplating apparatus
Assignee: Thyssen AG
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Filing: 1981-05-01
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Granted: 1982-08-31
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Expires: 2001-05-01
Abstract
Abstract An apparatus is disclosed for the electroplating of metal strips, and more particularly for the zinc-coating of steel strip, which comprises a tank filled with electrolyte liquid and immersed therein, at least one anode which is disposed above a strip to be electrolytically coated and at least one anode disposed below said strip, both of said anodes being parallel to said strip. The anode disposed above the strip is electrolytically consumable and made of an electrolytically depositable metal for deposition on said strip and the anode disposed below the strip consists essentially of a material that is insoluble in the electrolyte and not electrolytically consumable. Each anode is connected to a source of current, the anode disposed below said strip being provided with means for disconnecting it from said source of current.
Inventors
- 👤 Manfred Espenhahn
- 👤 Manfred Folwaczny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:03
CPC Classifications
C; C25; C25D; C25D7/00; C25D7/06; C25D7/0614; C25D7/0642
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
138 words
An apparatus for the electroplating of metal strips, and more particularly for the zinc-coating of steel strip, which comprises a tank that is filled with electrolyte liquid, and, immersed therein, at least one anode disposed above a strip to be electrolytically coated and at least one anode disposed below said strip, both of said anodes being parallel to said strip, the anode (4) disposed above the strip (7) being electrolytically consumable and made of an electrolytically depositable metal for deposition on said strip, and the anode (5) disposed below said strip (7) consisting essentially of a material that is insoluble in the electrolyte and not electrolytically consumable, each of said anodes being connected to a source of current, said anode (5) disposed below said strip being provided with means for disconnecting the same from said source of current.
Claim 2
Independent Claim
138 words
An apparatus for the electroplating of metal strips, and more particularly for the zinc-coating of steel strip, which comprises a tank that is filled with electrolyte liquid, and, immersed therein, at least one anode disposed above a strip to be electrolytically coated and at least one anode disposed below said strip, both of said anodes being parallel to said strip, the anode (4) disposed above the strip (7) being electrolytically consumable and made of an electrolytically depositable metal for deposition on said strip, and the anode (5) disposed below said strip (7) consisting essentially of a material that is insoluble in the electrolyte and not electrolytically consumable, each of said anodes being connected to a source of current, said anode (5) disposed below said strip being provided with means for disconnecting the same from said source of current.
Claim 3
Dependent Claim
28 words
An apparatus according to claim 1, wherein the upper and/or lower anode (4,5) is or are provided with means for adjusting its or their spacing from the strip.
Claim 4
Dependent Claim
41 words
An apparatus according to claim 1, wherein said anodes (4,5) are divided into several segments extending parallel to the edges of the strip, said segments being provided with means to connect the same to the current source independently of one another.
Claim 5
Dependent Claim
31 words
An apparatus according to claim 1, wherein there are associated with the anodes (4,5), parallel to the edges of the strip to be coated, shielding masks to contain the electric field.
Claim 6
Dependent Claim
43 words
An apparatus according to claim 3 wherein the outer segment or segments is or are provided with a means to connect it or them to a voltage whose polarity is the opposite of that of the voltage of the remainder of the anode.
Claim 7
Dependent Claim
28 words
An apparatus according to claim 1 wherein at least one pump is provided for circulation of the electrolyte, as well as nozzles for establishing the direction of flow.
Claim 8
Dependent Claim
21 words
An apparatus according to claim 1 wherein a plurality of anodes is disposed in a row above and below the strip.
Claim 9
Dependent Claim
15 words
An apparatus according to claim 1 wherein said anode disposed above said strip comprises zinc.
Claim 10
Dependent Claim
19 words
An apparatus according to claim 1 wherein said anode of insoluble material comprises titanium, carbon or lead-lined copper plates.
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) | 1985-08-30 | 1986-03-01 | 1986-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-30 | 1990-03-01 | 1990-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-30 | 1994-03-01 | 1994-08-31 | $7700.00 | Window Closed / Lapsed |