The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 1985
Filed:
Dec. 02, 1981
Dieter Elsaesser, St. Georgen, DE;
Johann von der Heide, Moenchweiler, DE;
Rolf Muller, St. Georgen, DE;
Georg Papst, St. Georgen, DE;
Papst-Motoren GmbH & Co. KG, St Georgen, DE;
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.