Pressure equalization apparatus and methods
US6800114B2 · kind B2 · utility
9Cited by
36References
45Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2002 |
| Grant date | Oct 5, 2004 |
| Priority date | — |
| Expiry date | Aug 7, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K5/068
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A pressure equalization apparatus for decreasing or eliminating the pressure differential between the internal pressure within a sealed system and the external ambient air pressure while concurrently sustaining a dry atmosphere inside the enclosure. The apparatus includes a variable volume chamber coupled in fluid communication with the sealed system and adapted to change its volume as in relation to the pressurization of the sealed system. Gas flowing between the sealed system and the variable volume chamber, as the pressurization changes, is exposed to an adsorbent operative for dehumidifying the exchanged gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.