Filter media
US6858057B2 · kind B2 · utility
118Cited by
26References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 12, 2003 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | Mar 12, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2929
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter media comprising a synthetic microfiber polymer fine fiber web wherein the diameter of the fibers is between about 0.8 to about 1.5 microns. The filter media is acceptable for use in ASHRAE applications. Constructions with a low DP backing, support or prefilter layers of coarse fiber provide large area filter webs of high efficiency and a stable and high threshold value of alpha above eleven.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.