Reverse osmosis water purificaiton unit
US4876002A · kind A · utility
25Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1988 |
| Grant date | Oct 24, 1989 |
| Priority date | — |
| Expiry date | Jun 13, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D61/081
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A domestic reverse osmosis water purification system utilizing few parts in the controller valve mechanism enhances reliability and economic feasibility. All surfaces of the controller valve mechanism in contact with water are non-metallic and are constructed of FDA approved materials. In addition to its normal function of metering the reject water flow, the controller valve mechanism allows the homeowner to easily rinse the reverse osmosis membrane and conserves water by automatically stopping influent water flow when the product storage tank is full.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.