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:
Apr. 19, 2011
Filed:
Aug. 08, 2008
Michael K. Liebman, Sunnyvale, CA (US);
Antony Tuyen Nguyen, San Jose, CA (US);
Thomas Anthony Tacklind, San Martin, CA (US);
August L. Klerks, Fremont, CA (US);
Amir Norton, San Jose, CA (US);
Michael K. Liebman, Sunnyvale, CA (US);
Antony Tuyen Nguyen, San Jose, CA (US);
Thomas Anthony Tacklind, San Martin, CA (US);
August L. Klerks, Fremont, CA (US);
Amir Norton, San Jose, CA (US);
Western Digital Technologies, Inc., Irvine, CA (US);
Abstract
A method to assemble a disk drive having a spindle that includes a hub. At least one disk is placed on the hub. A clamp is fastened to the hub by a plurality of threaded fasteners. Each of the plurality of threaded fasteners is initially tightened. After initial tightening, an initial couple imbalance of the spindle is determined. After the initial couple imbalance is determined, a first selected threaded fastener of the plurality of threaded fasteners is selected and rotated by a first amount of rotation that is significantly different from a second amount of rotation of a second selected threaded fastener of the plurality of threaded fasteners. The selection and rotation of the first selected threaded fastener of the plurality of fasteners is determined based on the initial couple imbalance of the spindle.