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:
Mar. 06, 2007
Filed:
Dec. 19, 2003
Norbert A. Feliss, Sunnyvale, CA (US);
Donald Ray Gillis, San Jose, CA (US);
Reinhard F. Wolter, Saratoga, CA (US);
Norbert A. Feliss, Sunnyvale, CA (US);
Donald Ray Gillis, San Jose, CA (US);
Reinhard F. Wolter, Saratoga, CA (US);
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Abstract
A magnetic brake to prevent rotation of the spindle motor and disk(s). The magnetic brake includes two magnets, one attached to the spindle, clamp, disk, or motor, and the other magnet is coupled to the drive housing or to a movable member. Before the drive is installed in a computer, storage array, etc., the magnet coupled to the housing is removed externally, or the movable member is moved to free rotation of the spindle motor and disk(s). The movable member can also be caused to move automatically when a cable is attached to the drive. An alternate embodiment wraps a wire coil around one of the magnets to counter its magnetism upon energization, freeing the spindle motor and disk(s).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile