Method of coating metal surfaces
US4126521A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 19, 1977 |
| Grant date | Nov 21, 1978 |
| Priority date | — |
| Expiry date | Oct 19, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D5/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method and apparatus is disclosed for plating a selected portion of the surface of an article in which the non-plating surfaces of the article are covered by a non-porous elastic material to which pressure is applied to provide an liquid-tight seal between the elastic material and the mating surface of the article. An electrical conductor extending through the elastic material contacts the article allowing current to pass through the article when placed in a plating bath for depositing on the selected surface a metallic coating such as chromium. The article is mounted within a carrier composed of the non-porous elastic material which is formed to cover all of the non-plating surfaces of the article. The carrier is positioned within a fixture in which is provided means to apply pressure on the carrier thereby providing the liquid-tight seal between the carrier and the article.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.