Patent · US Expired

Driving mechanism for magnetic hard disc memories

US4519010A · kind A · utility

59Cited by

7References

25Claims

0Family size

Assignee

Papst Motoren GmbH & Co KG · DE

Inventors

Dieter Elsaesser · St. Georgen, DE
Johann von der Heide · Winterthur, CH
Rolf Muller · St. Georgen, DE
Georg Papst · Spaichingen, DE

Key dates

Filing date	Dec 2, 1981
Grant date	May 21, 1985
Priority date	—
Expiry date	Dec 2, 2001

Classification

Technology area (CPC H)Electricity
CPC primaryH02K2211/03
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A driving mechanism for magnetic hard disc memories includes an isolated space for maximum cleanness, a driving motor mounted within the apparatus and having a stator and a rotor, the motor when energized having parts producing magnetic flux, a hub extending into the space of maximum cleanness for receiving therein at least one magnetic hard memory disc, a connection between the motor and the hub for driving the hub, a magnetic flux shield located between the parts producing the magnetic flux and the space of maximum cleanness, and the rotor being detachably connected to the rotor shaft.

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