Method and apparatus for applying surface treatment to metal foil
US5228965A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1990 |
| Grant date | Jul 20, 1993 |
| Priority date | — |
| Expiry date | Oct 30, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K3/382
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for applying a surface treatment to a metal foil comprising a drum rotatable about a generally horizontal axis for guiding a continuous metal foil about a predetermined path; PA1 anode means adapted to contain electrolyte solution, the anode means having a smooth, generally upward facing anode surface defining a cylindrical cavity, which cavity is dimensioned to surround a portion of the drum and to define an annular gap between the smooth surface and the drum, a predetermined portion of the predetermined path of the metal foil extending through the gap; inlet means for creating a continuous flow of electrolyte through the gap; and power means connected to the foil and the anode to create an electrical potential across the foil and smooth surface of the anode means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.