Dual stage ultrafilter devices in the form of portable filter devices, shower devices, and hydration packs
US7534349B2 · kind B2 · utility
13Cited by
98References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2006 |
| Grant date | May 19, 2009 |
| Priority date | — |
| Expiry date | Nov 12, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/444
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention is directed to an alternative compact portable filtration device that can be used in remote locations and includes a single filtration cartridge that provides redundant filtration of the fluid (water). In particular, the device is a dual stage ultrafilter cartridge (apparatus) that is constructed and designed to provide a portable device that can be used in the field, such as during camping or military assignment, and offers two filtration stages (redundant filtration) within a single housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.