Drinking straw with hollow fibre liquid filter
US8852439B2 · kind B2 · utility
15Cited by
12References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2009 |
| Grant date | Oct 7, 2014 |
| Priority date | — |
| Expiry date | Dec 18, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2303/24
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A liquid filtration method and device, for example a drinking straw with a mouthpiece, and a bundle of hollow fibres. The open ends of the fibres are embedded in a base and provided in a compartment between the base and a liquid outlet. Water or other liquid flows into the inner volume of the hollow fibres and from there through their filtering membrane walls and into the compartment before the liquid flows out through the liquid outlet, for example the mouthpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.