Water treatment and soil testing
US4775513A · kind A · utility
6Cited by
6References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 5, 1987 |
| Grant date | Oct 4, 1988 |
| Priority date | — |
| Expiry date | Mar 5, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/177692
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A device for treating water to reduce the concentration of cations or anions therein includes a water-tight container (4) of flexible material, designed to be able to lie substantially flat (FIG. 3) when empty and having an aperture (5) for the introduction of liquid, a strainer (7) extending across the aperture, and a closure (6) for the aperture, and a quantity of ion-exchange material (b 8) occupying a minor proportion of the available interior volume of the container. A soil extraction outfit and a soil testing outfit are described, which incorporate the water treatment device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.