Device for starting and/or maintaining a discharge and cold cathode vacuum gauge incorporating such a device
US5767629A · kind A · utility
7Cited by
6References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 17, 1996 |
| Grant date | Jun 16, 1998 |
| Priority date | — |
| Expiry date | Jun 17, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J41/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A device for starting and maintaining a discharge which is placed within an enclosure. The enclosure contains a discharge zone confined by an electromagnetic field. The device has a microtip electron source located in the vicinity of the discharge zone. The electron source is polarized in such a way that it emits electrons to the discharge zone in order to start and maintain the discharge. The device can be used in a cold cathode vacuum gauge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.