Oxidation-protected metallic foil and method
US7153179B2 · kind B2 · utility
1Cited by
44References
43Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 7, 2003 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | Nov 7, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01K1/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical lead assembly for devices such as electrical lamps having a metallic foil for providing an electrically conducting path through a hermetic seal formed by pinch sealing a vitreous material. The metallic foil includes an oxidation-inhibiting coating of silica. In another aspect of the invention, methods of coating metallic foils with silica are disclosed. In yet another aspect of the present invention, an electrical lead assembly for lamps is provided wherein the metallic foil is extended to form an outer electrical lead for the lamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.