Control system to regulate the concentration of vapor in a hard disk drive
US7466514B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2006 |
| Grant date | Dec 16, 2008 |
| Priority date | — |
| Expiry date | Jul 28, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/1453
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for regulating the concentration of a vapor within a hard drive are provided. In one embodiment, the method may include providing a source chemical of a vapor in a first cavity formed within a first object, providing an absorptive chemical which absorbs the vapor in a second cavity formed within the first object, and providing a third cavity formed by a hard drive housing of the hard drive. A first conductance path having a first conductance connects the first cavity to the third cavity, a second conductance path having a second conductance connects the second cavity to the third cavity, and the first conductance and the second conductance maintain a partial pressure level of the vapor within the third cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.