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:
Aug. 10, 2004
Filed:
May. 05, 2000
Wook Young Soh, Suwon, KR;
LG Electronics Inc., Seoul, KR;
Abstract
A rotor balancer and a disk driver having the rotor balancer are disclosed. The rotor balancer simplifies a construction of an auto balancing unit for automatically correcting a rotation unbalance occurring when a disk is rotated and of a mounting unit for accurately mounting the disk. Further, the rotor balancer reduces noise and vibration. The rotor balancer includes a ball case installed at a rotor for rotating a rotation member. The ball case has a circular racing space of which racing faces have different friction coefficients. The disk driver, having the rotor balancer, includes an insert unit on a turntable which is inserted into a central hole of the disk. A plurality of mounting spring pieces are formed at the insert unit and made of an elastic material so as to elastically support the disk, when it is mounted, so that the disk can be mounted accurately and firmly.