Disk drive and breather filter having multiple ventilation paths and method of inspecting same
US7064920B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2002 |
| Grant date | Jun 20, 2006 |
| Priority date | — |
| Expiry date | Aug 6, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/146
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk drive has an internal breather filter that performs a filtration function while maintaining ventilation with an exterior of the drive. The filter circulates a gas between an interior and the exterior of its enclosure. The enclosure includes a first ventilation path for circulating the gas from the exterior to the filter, and a second ventilation path for circulating the gas from the filter to the exterior. In addition, a method of inspecting the filter and disk drive is disclosed. The method includes a compressing and decompressing step of compressing and decompressing the inside of the enclosure, a measuring step of measuring pressure in the enclosure, and a judging step of judging whether attachment of the filter is adequate on the basis of a value of the pressure measured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.