Liquid absorbing filter assembly and system
US7597733B2 · kind B2 · utility
8Cited by
13References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2005 |
| Grant date | Oct 6, 2009 |
| Priority date | — |
| Expiry date | May 6, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2230/432
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A filter assembly for use in sidestream gas sampling assembly. The filter assembly of the present invention includes a hydrophilic member that is constructed from a porous material and is situated such that gas entering the filter assembly passes through at least a portion the hydrophilic member. In a further embodiment, the filter includes a hydrophobic member positioned downstream of the hydrophilic member. The hydrophobic member acts as a second line of defense against moisture reaching the sensing mechanism in the gas sampling assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.