Method and structure for maintaining a low contaminated enclosure
US4418369A · kind A · utility
33Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 4, 1981 |
| Grant date | Nov 29, 1983 |
| Priority date | — |
| Expiry date | May 4, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/1446
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A ventilation and filtration system and method for an enclosure isolating a memory device spinning disk mechanism from airborne contaminants in which a vent through a remote filter from the ambient atmosphere is positioned with one opening adjacent the center portion of the spinning disk whereby the enclosure is vented through the filter to the ambient pressure at a location at substantially the lowest pressure within the enclosure as a result of the air pumping action of the spinning disk to thereby over pressurize the remainder of the enclosure and minimize unfiltered leaks of outside air into the enclosure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.