Water treatment system tank selector valve assembly
US8961797B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 14, 2013 |
| Grant date | Feb 24, 2015 |
| Priority date | — |
| Expiry date | Jun 25, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86831
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A valve assembly for a twin tank-type water treatment system includes and a tank selector valve assembly that includes first and second rotary selector valves driven in concert with another by a reversible electric motor. The motor drives the first and second selector valves between (a) a first position in which an untreated water inlet and a treated water outlet of the valve assembly are coupled to a first resin tank, and a second resin tank is connected to a regeneration valve, and (b) a second position which the untreated water inlet and the treated water outlet of the valve assembly are coupled to the second resin tank, and the first resin tank is connected to a regeneration valve. The rotary valves may be disks that rotate relatively rapidly on a common shaft driven by the electric motor through an arc of 180° or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.