Discharge tube
US5057742A · kind A · utility
11Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1990 |
| Grant date | Oct 15, 1991 |
| Priority date | — |
| Expiry date | Feb 21, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A discharge tube has a sealed envelope filled with a gas; an anode, cathode and shielding electrode built in the sealed envelope; and electrode holding pins. At least eight electrode holding pins penetrate a button stem so as to be arranged at predetermined intervals on a circle coaxial with the button stem, and, of at least eight electrode holding pins, at least three hold the cathode, at least three hold the shielding electrode, and at least two hold the anode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.