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:
Sep. 17, 2024
Filed:
Jul. 17, 2023
Western Digital Technologies, Inc., San Jose, CA (US);
Yoshiyuki Hirono, Chigasaki, JP;
Andre Chan, Palo Alto, CA (US);
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
A hard disk drive carriage arm includes a top depressed portion or indentation extending from a top surface toward a bottom surface and a bottom depressed portion or indentation extending from the bottom surface toward the top surface and opposing the top depressed portion. As such, a separating structure between the depressed portions partitions a corresponding balance hole, preferably at or near a mid-plane between the top and bottom surfaces. This configuration does not notably increase windage-based power loss while suppressing fluid force fluctuation, thereby stabilizing and balancing the airflow inside of the depressed portions.