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:
Jun. 24, 2014
Filed:
Apr. 10, 2013
Western Digital Technologies, Inc., Irvine, CA (US);
David K. Myers, Campbell, CA (US);
Daniel T. Nguyen, Milpitas, CA (US);
Western Digital Technologies, Inc., Irvine, CA (US);
Abstract
A disk drive includes a disk drive base and a disk rotatably mounted to the disk drive base. First and second permanent magnets are fixed to the disk drive base. An actuator is pivotably mounted to the disk drive base. The actuator defining an actuator pivot axis about which the actuator pivots. The actuator includes an actuator coil disposed between the first and second permanent magnets. An actuator latch is disposed adjacent to the actuator. The actuator latch includes a biasing element that comprises a ferromagnetic material. An overlapping portion of the first permanent magnet overlaps the second permanent magnet as viewed from a viewing direction that is parallel to the actuator pivot axis. A protruding portion of the first permanent magnet does not overlap the second permanent magnet as viewed from the viewing direction.