Patent · US Expired

Directional getter attached to multi-apertured member

US3979633A · kind A · utility

16Cited by
7References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 15, 1975
Grant dateSep 7, 1976
Priority date
Expiry dateOct 15, 1995

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01J2229/882
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

An improvement for inhibiting arcing within a cathode ray tube comprises a combination including a low resistive electrical coating disposed interiorly on the forward portion of the funnel, joined with a high resistive coating disposed interiorly on the rearward portion thereof. Associated therewith are getter means having discretely shaped diffusion direction means to prevent the formation of a conductive path across the high resistive coating. The improved arc suppression combination beneficially improves the dielectric breakdown protection for both the tube and the associated circuitry.

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