Patent · US Expired

Method of adjusting the electrode spacings in systems of electron-beam tubes

US4449951A · kind A · utility

6Cited by
5References
3Claims
0Family size

Assignee

Inventor

Key dates

Filing dateSep 3, 1981
Grant dateMay 22, 1984
Priority date
Expiry dateSep 3, 2001

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01J9/18
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

For the purpose of the exact position adjustment and mounting of the cathodes (3) in their supporting plates (4) outside the system of a TV-Picture tube electron gun, the fitting position of the supporting plate and the fitting positions of the cathodes in this supporting plate are transferred to the outside of the system with the aid of a measuring head comprising independently guided spacing jigs (8, 10) for transferring the fitting position instead of having to use a limit stop lying outside the system.

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