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. 01, 1998
Filed:
Nov. 15, 1996
Applicant:
Inventors:
Neal Bertram Schirle, Morgan Hill, CA (US);
Huey Ming Tzeng, San Jose, CA (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360104 ;
Abstract
A hard disk drive head actuator includes a plurality of arms for holding the heads over the disks. Each arm is formed with one or more cutouts, to reduce the rotational inertia of the actuator. To prevent increased viscous dissipation, or windage losses, that would otherwise be caused by the cutouts, the cutouts are filled with lightweight plastic inserts. Advantageously, filling the cutouts improves structural damping of an arm and enhances the dynamic response of an actuator assembly that incorporates one or more such arms.