US3616280A
Expired / Lapsed
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Nonaqueous electroplating solutions and processing
Assignee: United States Atomic Energy Commission
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Filing: 1969-03-24
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Granted: 1971-10-26
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Expires: 1989-03-24
Abstract
Abstract Nonaqueous electroplating solutions containing dimethyl sulfoxide and a plating metal salt, a process for electroplating using these solutions wherein the solution is heated to a temperature between about 160* and 200* F. and a modified process for selectively electroplating as a composite coating more than one material at separate plating rates.
Inventors
- 👤 Vernon E Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:08
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
51 words
The solution of claim 1 wherein said solution includes a complexing agent selected from the group consisting of ammonium chloride, ammonium nitrate, ammonium cyanide and sodium cyanide and said copper salt is a copper chloride and said nickel salt is selected from the group consisting of nickel chloride and nickel sulfate.
Claim 2
Dependent Claim
105 words
A process of electroplating a metal coating on a metallic member comprising, dissolving a copper salt of said coating metal in dimethyl sulfoxide to form a first anhydrous electrolytic solution, dissolving a nickel salt in dimethyl sulfoxide to form a second anhydrous electrolytic solution, mixing said first and second solutions, immersing said metallic member in said mixed electrolytic solution, immersing an anode electrode in said mixed solution, heating said mixed solution to a temperature of from about 160* to 200* F., and passing predetermined plating current through said mixed solution from said anode electrode to said metallic member for controlling plating rates from said salts.
Claim 3
Dependent Claim
18 words
The process of claim 3 wherein said heating is to a temperature between about 170* to 190* F.
Claim 4
Dependent Claim
28 words
The process of claim 3 including the additional step of adjusting said plating current by prescribed amounts during said process for plating alloys thereof with selectable constituent percentages.
Claim 5
Dependent Claim
22 words
The process of claim 5 wherein said plating current is adjusted between about 2 and 22 a./square foot of said metallic member.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |