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.:

US 9209668 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 08, 2015

Filed:

Mar. 12, 2012
Applicants:

Jong Hoon Lee, Incheon, KR;

Chang Seob Song, Seoul, KR;

Inventors:

Jong Hoon Lee, Incheon, KR;

Chang Seob Song, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 33/14 (2006.01); G11B 17/028 (2006.01); H02K 5/167 (2006.01); H02K 11/00 (2006.01); G11B 19/20 (2006.01);
U.S. Cl.
CPC ...
H02K 11/0089 (2013.01); G11B 17/0282 (2013.01); G11B 19/2009 (2013.01); G11B 33/1493 (2013.01); H02K 5/1675 (2013.01);
Abstract

Provided is a spindle motor having an electrostatic discharge (ESD) path that can stably discharge electric charges introduced from the outside to a rotating shaft through a base plate, in a structure of forming a bearing housing by using a resin and insert-molding the base plate. The spindle motor includes: a rotor to the central portion of which one end of a rotating shaft is coupled; a bearing that rotatably supports the rotating shaft; a bearing housing that accommodates the bearing in the inside of a groove and that is made of a resin; and a base plate whose inner circumferential portion is buried and combined in the inside of the bearing housing, wherein part of the base plate is in contact with the bearing to thus discharge externally introduced static electricity through the rotating shaft, bearing, and the base plate.


Find Patent Forward Citations

Lee, Jong. (2015). Spindle motor having an electrostatic discharge path (U.S. Patent No. 9209668). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9209668

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