Patent · US Expired

Method of sealing alumina arc tube

US4147952A · kind A · utility

4Cited by
5References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 8, 1975
Grant dateApr 3, 1979
Priority date
Expiry dateSep 8, 1995

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC04B2237/84
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A niobium metal tube is sealed in the axial hole of a cylindrical alumina plug using a high temperature sealing glass and the plug is sealed in the end of an alumina arc tube.

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