Gravity filter
US9994461B2 · kind B2 · utility
2Cited by
51References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 17, 2012 |
| Grant date | Jun 12, 2018 |
| Priority date | — |
| Expiry date | Dec 17, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2307/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Embodiments of a gravity filter for potable water comprise a loose filter bed comprising ion exchange resin particles and activated carbon particles, and a porous non-woven filter substrate disposed downstream of the loose filter bed, wherein the porous non-woven filter substrate comprises an impregnated heavy metal scavenger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.