Disk drive with added external labyrinth path during servo track writing
US8665555B1 · kind B1 · utility
49Cited by
36References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2010 |
| Grant date | Mar 4, 2014 |
| Priority date | — |
| Expiry date | Sep 25, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/1486
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk drive includes an enclosure that has a breather port therethrough. A first labyrinth path may be disposed inside the disk drive enclosure, in fluid connection with the breather port. A second labyrinth path may be temporarily disposed outside the disk drive enclosure, in fluid connection with the breather port. An alternative gas such as helium may be allowed to bleed out through the second labyrinth path during a period of servo track writing. The second labyrinth path may be removed after servo track writing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.