Getter wire
US4925741A · kind A · utility
12Cited by
20References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 8, 1989 |
| Grant date | May 15, 1990 |
| Priority date | — |
| Expiry date | Jun 8, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1284
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A getter wire is made by wrapping alternate layers of getter metal and refractory metal around an ingot of refractory metal. The composite ingot thus formed is reduced to wire, preferably by extrusion and drawing. The multi layers of refractory and getter metals can then be heated to form an alloy of the two metals from which the getter is evaporated during use. A preferred combination is tantalum as refractory and titanium as getter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.