Self-contained canister unit for filtering tap water
US5032268A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 17, 1989 |
| Grant date | Jul 16, 1991 |
| Priority date | — |
| Expiry date | Aug 17, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2307/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A water filtering canister unit having self-contained reverse osmosis and activated carbon filtering systems which are adapted for connection onto the water tap in a home, apartment or office. The canister unit includes a housing defining an inner chamber in which a cylindrical reverse osmosis membrane is mounted. Water molecules which pass through the membrane continue through a capsule containing a body of activated carbon particles and thence outwardly through a discharge conduit. Dissolved salts and minerals as well as particulate matter rejected by the membrane are discharged in brine water at a controlled rate through a lower end cap on the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.