US4661213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroplate to moving metal
Assignee: NOF Metal Coatings North America Inc
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Filing: 1986-02-13
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Granted: 1987-04-28
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Expires: 2006-02-13
Abstract
Abstract An anodic roller electroplating process utilizes novel anodic roller apparatus and provides flexible operation parameters. The novel anodic roller apparatus comprises a perforate valve metal cylinder such as in mesh form. The cylinder has an electrocatalytic coating and an electrolyte-containing, porous wrap. Processing parameters can provide desirable electroplate, such as of metal coils, at enhanced plating speeds as well as providing carefull control over plate composition and deposition thickness.
Inventors
- 👤 Terry E. Dorsett
- 👤 David P. Rininger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:10
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/04; C25D7/00; C25D7/06; C25D7/0614; C25D7/0642; C25D17/00; C25D17/10; C25D17/14
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
132 words
The method of metal electroplating a moving strip of metal wherein a rotating anode contacts a cathodic metal strip, which method comprises: contacting tangentially said metal strip with a cylindrical, non-sacrificial anode capable of rotational movement, said anode comprising a hollow and at least substantially perforate, valve metal cylinder having an exterior surface electrocatalytic coating containing metal oxide, said anode having a thin, non-conductive and highly porous outer sleeve covering of synthetic resin, with said sleeve containing metal electroplating solution; rotating said anode in contact with said metal strip at a rate providing relative movement between said strip and said anode; impressing a current between said anode and said cathode; and electroplating said metal strip at a current density of not less than about 3,500 amperes per square foot of anode area.
Claim 2
Independent Claim
132 words
The method of metal electroplating a moving strip of metal wherein a rotating anode contacts a cathodic metal strip, which method comprises: contacting tangentially said metal strip with a cylindrical, non-sacrificial anode capable of rotational movement, said anode comprising a hollow and at least substantially perforate, valve metal cylinder having an exterior surface electrocatalytic coating containing metal oxide, said anode having a thin, non-conductive and highly porous outer sleeve covering of synthetic resin, with said sleeve containing metal electroplating solution; rotating said anode in contact with said metal strip at a rate providing relative movement between said strip and said anode; impressing a current between said anode and said cathode; and electroplating said metal strip at a current density of not less than about 3,500 amperes per square foot of anode area.
Claim 3
Dependent Claim
34 words
The method of claim 1 wherein said moving metal strip proceeds in tangential contact with said anode cylinder and the line speed of said strip is less than the rotational speed of said anode.
Claim 4
Dependent Claim
18 words
The method of claim 1 wherein said cylindrical anode tangentially contacts said metal strip by reverse roll coating.
Claim 5
Dependent Claim
18 words
The method of claim 1 wherein said cylindrical anode tangentially contacts said metal strip by direct roll coating.
Claim 6
Dependent Claim
30 words
The method of claim 1 wherein electrolyte feeds to said anode through a central anode shaft and thereafter travels through said perforate inner cylinder to said porous outer sleeve covering.
Claim 7
Dependent Claim
27 words
The method of claim 1 wherein a steel strip is electroplated with zinc, zinc-rion or nickel-zinc plate at a current density of at least about 4,000 ASF.
Claim 8
Dependent Claim
28 words
The method of claim 1 wherein said metal strip is contacted with a cathodic contact roll in intimate contact with said strip prior to contact with said anode.
Claim 9
Dependent Claim
23 words
The method of claim 1 wherein said metal strip following electroplating is water rinsed to remove excess solution therefrom and is subsequently dried.
Claim 10
Dependent Claim
33 words
The method of claim 1 wherein said metal strip is contacted by said anode at a relative movement differential between strip and anode within the range of from about 1.5:1 to about 40:1.
Claim 11
Dependent Claim
11 words
An electroplated metal strip produced by the process of claim 1.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-04-27 | 1990-10-27 | 1991-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-27 | 1994-10-27 | 1995-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-27 | 1998-10-27 | 1999-04-28 | $7700.00 | Window Closed / Lapsed |