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. 12, 2012
Filed:
Mar. 24, 2008
Applicant:
Ferdinand Hendriks, Morgan Hill, CA (US);
Inventor:
Ferdinand Hendriks, Morgan Hill, CA (US);
Assignee:
Hitachi Global Storage Technologies, Netherlands B.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 33/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A system and method for stabilizing air flow in a shroud to disk region in a hard disk drive are disclosed. One embodiment provides a hard disk drive having a shroud with machined aerodynamic annulus insertions thereon for stabilizing the Ekman layer of air flow at the peripheral ends of the hard disks and the shroud. The aerodynamic annulus insertions are positioned in between disk pairs at approximately 1 mm from the peripheral ends of each disk to stabilize the air flow as the disk rotate and to ensure that the air flow leaves the hard disk drive at a fixed location.