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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.:

US 11410694 B1

PDFFull Text
Date of Patent:
Aug. 09, 2022

Filed:

Oct. 06, 2020

Axial flux permanent magnet motor for ball screw cam elevator mechanism for reduced-head hard disk drive

Applicant:

Western Digital Technologies, Inc., San Jose, CA (US);

Inventors:

Diep Nguyen, Castro Valley, CA (US);

David K. Myers, Campbell, CA (US);

Bikash Sukla, Sunnyvale, CA (US);

Assignee:

Western Digital Technologies, Inc., San Jose, CA (US);

Attorney:

John D. Henkhaus

Primary Examiner:

Jefferson A Evans

Int. Cl.
CPC ...
G11B 5/54 (2006.01); G11B 5/48 (2006.01); G11B 5/55 (2006.01); H02K 7/14 (2006.01); H02K 37/10 (2006.01); F16H 25/22 (2006.01); F16H 25/20 (2006.01);
U.S. Cl.
CPC ...
G11B 5/5569 (2013.01); F16H 25/2204 (2013.01); G11B 5/4813 (2013.01); G11B 5/4873 (2013.01); G11B 5/5573 (2013.01); H02K 7/14 (2013.01); H02K 37/10 (2013.01); F16H 2025/2081 (2013.01);
Abstract

An approach to a reduced-head hard disk drive (HDD) involves an actuator elevator subsystem that includes a ball screw cam assembly with an axial flux permanent magnet (AFPM) motor affixed to a cam screw to drive rotation of the screw, which drives translation of an actuator arm assembly so that a corresponding pair of read-write heads can access different magnetic-recording disks of a multiple-disk stack.

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Nguyen, Diep. (2022). Axial flux permanent magnet motor for ball screw cam elevator mechanism for reduced-head hard disk drive (U.S. Patent No. 11410694). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11410694

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