Lance L Thoresen

US Patent:

8416535, Apr 9, 2013

Filed:

Jan 15, 2004

Appl. No.:

10/758330

Inventors:

Kurt J. Korkowski - Carver MN, US
Lance L. Thoresen - Burnsville MN, US
Xiaohong Sun - Prior Lake MN, US

Assignee:

Seagate Technology LLC - Scotts Valley CA

International Classification:

G11B 21/08

US Classification:

3602659

Abstract:

An endcap for use on an actuator arm carrying a single head gimbal assembly, the endcap comprising a body, and a shielding feature extending from the body for reducing windage excitation of the head gimbal assembly.

US Patent:

20040252405, Dec 16, 2004

Filed:

Jun 10, 2003

Appl. No.:

10/458784

Inventors:

Xiaohong Sun - Prior Lake MN, US
Lance Thoresen - Burnsville MN, US
Xu Zuo - Prior Lake MN, US

International Classification:

G11B033/14

US Classification:

360/097020

Abstract:

A disc drive includes a housing surrounding a voice coil in a voice coil cavity, and a disc in a disc cavity. The disc has data tracks and an outer diameter. The disc rotates to induce an airflow along the outer diameter. The voice coil actuates an actuator arm in the disc cavity to access the data tracks. An air dam is in the disc cavity upstream of the actuator arm. The airflow includes a straight line tangent airflow portion along a straight edge of a shroud that is free of obstructions and upstream of the air dam. The straight line airflow portion extends from an arc airflow portion around the outer diameter to the voice coil cavity along a straight line path tangent to the outer diameter.

US Patent:

20090073606, Mar 19, 2009

Filed:

Sep 19, 2007

Appl. No.:

11/857914

Inventors:

Xiaohong Sun - Prior Lake MN, US
Lance L. Thoresen - Burnsville MN, US

Assignee:

Seagate Technology LLC - Scotts Valley CA

International Classification:

G11B 5/012

US Classification:

360 9701

Abstract:

A data storage medium has a spinning outer diameter that generates a flow stream. A hub joins to actuator arms that are separated by a slot. The outer diameter and the flow stream pass through the slot. A support plate projects from the hub into the slot and faces in a direction that is generally transverse to the flow stream. A diverter plate is positioned in the slot upstream of the support plate. The diverter plate diverts the flow stream toward the outer diameter.