Method of extending the life of a multiple filament x-ray tube
US5901197A · kind A · utility
9Cited by
3References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1997 |
| Grant date | May 4, 1999 |
| Priority date | — |
| Expiry date | Aug 20, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2235/068
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Methods for extending the life of an X-ray tube having at least two filaments which are individually energizable in which the filaments are successively energized either for a predetermined number of exposures or based on a predetermined passage of time, and methods for predicting imminent failure of still functioning filaments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.