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:
Jan. 10, 1995
Filed:
Feb. 25, 1993
Applicant:
Inventors:
Itsuo Miyaji, Yokaichi, JP;
Hiroshi Matsumoto, Hikone, JP;
Assignee:
Nippon Densan Corporation, Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310 90 ;
Abstract
A spindle motor comprises a stationary member, a hub which is mounted rotatably on the stationary member through a pair of bearings, a rotor magnet which is mounted on the hub, a stator located face to face to said rotor magnet and a clamp for mounting recording disks to the hub. The hub is provided with a mating protrusion for fixing the clamp, the mating protrusion is fitted with a flat end of the hub, and the clamp is fixed by mounting the flat end of the hub with a fastening screw. Further, with a sealing member being fitted on the bearing, a labyrinthine sealing structure is formed with the sealing member and the stationary member.