Control valve for water softeners
US4298025A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 1980 |
| Grant date | Nov 3, 1981 |
| Priority date | — |
| Expiry date | May 5, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86445
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An improved water softener control valve having a housing defining a servo-control chamber that encloses concentrically mounted water usage and regeneration control discs. Each disc is incrementally rotatable by ratchet drives that are driven by water usage and regeneration control turbines, respectively, through associated reduction gear trains. The ratchet drive for the water usage disc includes a pawl that is engageable with the regeneration control disc, which upon predetermined movement in the water usage disc effects movement in the regeneration control disc to initiate a regeneration cycle. A rotatable insert is provided in the housing for manually rotating the regeneration control disc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.