Water purification device
US9212068B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2014 |
| Grant date | Dec 15, 2015 |
| Priority date | — |
| Expiry date | Apr 20, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/44
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A water purification device includes an expandable water collecting device having a variable volume, wherein at least part of the surface of the water collecting device includes a filter area, the filter area being permeable to water and allowing water to enter the water collecting device when the filter area is submerged in water. The device further includes a mechanically driven expansion means for exerting a force for increasing the volume of the water collecting device and thereby drawing water through the filter area into the water collecting device. In use, the water collecting device is submerged and the expansion means is released, drawing water into the water collecting device through the filter membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.