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:
Jul. 12, 1994
Filed:
Dec. 23, 1991
Norman G Ainslie, Anacortes, WA (US);
David W Albrecht, San Jose, CA (US);
James W Berberich, San Jose, CA (US);
Daniel W Chapman, San Jose, CA (US);
Mats A Engwall, Hollister, CA (US);
Richard E Mach, Los Gatos, CA (US);
Zack D Reynolds, San Jose, CA (US);
International Business Machines, Armonk, NY (US);
Abstract
A spindle system is comprised of a journal and thrust air bearing. The journal bearing has two sets of opposing groove areas. The thrust air bearing has two sets of spiral grooves. The thrust air bearing is gimballed to compensate for misalignment. A bias contact member is connected to the rotating member along the axis of rotation and provides electrical grounding. The spindle system is especially applicable to mounting recording disks in a data storage disk drive.