Patent · US Expired

Mounting means for mounting spiral wire cathodes

US4728850A · kind A · utility

0Cited by

1References

6Claims

0Family size

Assignee

Leybold-Heraeus GmbH · DE

Inventors

Reinhardt Kraft · Schongau, DE
Horst Ranke · Alzenau, DE

Key dates

Filing date	Jul 3, 1986
Grant date	Mar 1, 1988
Priority date	—
Expiry date	Jul 3, 2006

Classification

Technology area (CPC H)Electricity
CPC primaryH01J37/06
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

In a mounting device for electrically heated, spirally wound wire cathodes in electron guns, two mounting posts joined together by an insulator are configured as sector-shaped sections of a hollow cylinder, and have each a circumferential groove on its end remote from the insulator. The surfaces defining the grooves are parts of common circular and cylindrical surfaces, and the mounting ends of the cathodes are of a configuration approximately complementary to that of the grooves in the mounting posts. The mounting ends therefore lie in a spring-biased and form-fitting manner in the circumferential grooves.

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