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:
Sep. 05, 1995
Filed:
Mar. 10, 1994
Applicant:
Inventors:
Max Schaule, Mindelheim, DE;
Roy MacKinnon, Frankenried, DE;
Assignee:
Quantum Corp., Milpitas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ; H02K / ; F16C / ; G11B / ;
U.S. Cl.
CPC ...
310 90 ; 310 / ; 360 9807 ; 384110 ;
Abstract
A spindle and hub assembly in a disk drive having an integrated motor including a housing having a cylindrical sleeve and two end flanges, the cylindrical sleeve and the upper end flange being one piece and forming the hub and the lower end flange being pressed into the hub and a shaft being rotatably supported in the end flanges by means of hydrodynamic bearings, where the hydrodynamic bearings have conical bearing surfaces converging towards the interior of the housing, whereby a high precision and low cost spindle and hub assembly is provided.