Patent · US Expired

Magnetic coupling for a rotating X-ray tube

US5086442A · kind A · utility

6Cited by

4References

15Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Edwin Gemmel · Erlangen, DE
Josef Rohmfeld · Erlangen, DE
Stefan Hock · Hanau, DE

Key dates

Filing date	Mar 26, 1991
Grant date	Feb 4, 1992
Priority date	—
Expiry date	Mar 26, 2011

Classification

Technology area (CPC H)Electricity
CPC primaryH01J2235/066
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A magnetic coupling for a device, such as a cathode, which is received in a vacuum bulb of a tube which has shafts for mounting the tube for rotation on an axis, has an inner ferromagnetic part disposed in the vacuum bulb and connected to the device and an outer ferromagnetic part which is arranged outside of the vacuum bulb and aligned with the inner part. The outer part comprises a magnetic arrangement having a plurality of pole pieces to which the poles of a ferromagnetic yoke that forms the inner part are allocated.

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