Portable device for supplying filtered water
US6379544B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Dec 19, 2000 |
| Grant date | Apr 30, 2002 |
| Priority date | — |
| Expiry date | Dec 19, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/283
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A portable device for supplying filtered water includes a container, a cap member, a partitioning member, a filter member, an intake tube, a piston pump unit, and a spout. The partitioning member divides an interior of the container into an outer chamber and an inner chamber. The filter member is disposed on the partitioning member, and has a first inlet communicated with the outer chamber and a first outlet communicated with the inner chamber. The intake tube is disposed in the inner chamber. The piston pump unit is mounted in the cap member, and has second inlet and outlet, and an inner cylindrical wall defining a cylindrical chamber in fluid communication with the second inlet and outlet. The second inlet is further communicated with the intake tube. The second outlet is further communicated with a passage in a piston member through which purified water is drawn up to the spout.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.