Patent · US Expired

Discharge electrode with microstructure surface

US4890035A · kind A · utility

6Cited by

5References

19Claims

0Family size

Assignees

ELTRO GmbH · DE
Doduco KG · DE

Inventors

Franz Prein · Neckargemünd, DE
Jurgen Wiegand · Eppelheim, DE
Peter Frey · Hofheim, DE
Norbert Klink · Pforzheim, DE

Key dates

Filing date	Apr 4, 1989
Grant date	Dec 26, 1989
Priority date	—
Expiry date	Apr 4, 2009

Classification

Technology area (CPC H)Electricity
CPC primaryH01J1/304
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A surface for electrical discharge for incorporation in a gas discharge chamber and designed to produce a uniform distribution of the field strength factor, and an increase in the photon and/or the electron density. This is achieved by employing a microstructure combining at least two materials of different physical properties and having a geometry which increases electron emission.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.