Filter media
US6554881B1 · kind B1 · utility
163Cited by
18References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 27, 2000 |
| Grant date | Apr 29, 2003 |
| Priority date | — |
| Expiry date | Oct 27, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2929
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter media having 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 stale and high threshold value of alpha above eleven.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.