Water filter
US4605499A · kind A · utility
Inventor
Key dates
| Filing date | Feb 19, 1985 |
| Grant date | Aug 12, 1986 |
| Priority date | — |
| Expiry date | Feb 19, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A20/208
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A disposable, portable water filter that is suited for filtering small quantities of drinking water. In one embodiment the filter may be placed over a jar or drinking glass and unfiltered water poured into the jar or glass through the filter. In another embodiment, the filter includes the jar which has a lid with a rim that fits tightly around the neck of the jar. The lid may have an opening for pouring unfiltered water into the jar and filtered water out from the jar. The lid may have an opening for pouring unfiltered water into the jar and filtered water out from the jar. The filter thereby provides twice the filtering effect. The filter in a preferred embodiment consists of containing material that forms a pouch for holding the filter medium and a skirt for suspending the filter. In another embodiment the filter may consist of one sheet of metal foil shaped like a bowl for containing the filter medium, and has handles extending from the bowl for holding the filter over a jar or drinking glass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.