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.

Date of Patent:
Mar. 22, 2016

Filed:

Sep. 09, 2014
Applicant:

Hgst Netherlands B.v., Amsterdam, NL;

Inventors:

David D. Brause, Longmont, CO (US);

Janice E. Heil, Boulder, CO (US);

Matthew J. Sandor, Denver, CO (US);

Assignee:

HGST Netherlands B.V., Amsterdam, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/55 (2006.01); G11B 21/08 (2006.01); G11B 5/48 (2006.01);
U.S. Cl.
CPC ...
G11B 5/4813 (2013.01); G11B 5/4826 (2013.01);
Abstract

A head stack assembly (HSA) having an actuator comb with a stepped inner bore may have an upper portion of the inner bore with a first diameter that is greater than the diameter of a lower portion of the inner bore. Therefore, little friction and resistance is encountered when force fitting a pivot-bearing assembly into the upper portion of the stepped inner bore, thereby avoiding surface damage and the generation of unwanted debris particles. The HSA may further comprise a plurality of tolerance rings to couple the actuator comb with the pivot-bearing assembly, such as one tolerance ring positioned below the step feature and one tolerance ring positioned above and seated on the step feature of the comb inner bore.


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