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. 11, 1998
Filed:
Aug. 06, 1996
Weon Ki Hong, Kyunggi-do, KR;
Samsung Electro-Mechanics Co.Ltd., Kyunggi-do, KR;
Abstract
Disclosed is a spindle motor of drive system for driving a disk such as a hard disk. The spindle motor can prevent impurities from flowing thereinto and avoid contamination caused by dispersion of a lubricating oil such as grease filled in a bearing thereof. The spindle motor of the disk drive for reproducing or recording information from or onto a disk has a stator core installed on a shaft of a housing, bearings mounted on both lower and upper portions of the shaft, and a hub for mounting the disk. The hub has a magnet at an inner circumference thereof. The shaft has an air inlet opening which is transversely formed in the shaft and an air flow opening which is formed at a center of the shaft. The air flow opening is communicated with the air inlet opening at a right angle. A spiral sealing member is installed at a center of an upper portion of the hub. The spiral sealing member is formed at a bottom of a lead end thereof with a spiral portion, thereby preventing not only impurities from flowing into the spindle motor, but also the lubricating oil from dispersing out of the bearings by a spiral action of the spiral sealing member.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile