Water purifier
US8518255B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2011 |
| Grant date | Aug 27, 2013 |
| Priority date | — |
| Expiry date | Feb 27, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2307/06
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A water purifier that performs back washing extremely effectively even when raw water contains a large amount of impurities includes an attachment main body including an inflow passage into which raw water from an inflow port flows, and first and second outflow passages through which water flows toward outflow ports; and a water purification main body that is attached rotatably to the attachment main body and includes a first flow passage, a second flow passage, and a third flow passage, a first filter member disposed between the first flow passage and the second flow passage and a second filter member disposed between the second flow passage and the third flow passage, wherein, when the attachment main body and the water purification main body are in a rotation position corresponding to a water purification mode, the first flow passage and the second flow passage communicate with the inflow passage and the first outflow passage, respectively, and when the attachment main body and the water purification main body are in a rotation position corresponding to a back washing mode, the third flow passage and the first flow passage communicate with the inflow passage and the second outfl…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.