Longitudinal in-situ impedance and resin monitoring sensor, and method of measuring and tracking the movement of hardness in a water softener utilizing the same
US11667542B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2020 |
| Grant date | Jun 6, 2023 |
| Priority date | — |
| Expiry date | Oct 31, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2303/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor system and process that utilizes impedance/conductivity measurements to track the movement of hardness in an ion exchange media. The impedance/conductivity sensor is a vertical, longitudinally directed, axially lengthwise electrode system having electrodes placed within a bed of ion exchange material and separated by water and the ion exchange material. The electrodes generally run parallel to one another. Hard water is introduced to the water softener and softened by the ion exchange material. A hardness gradient is tracked by the sensor, and regeneration is initiated when it is determined that the ion exchange material is depleted or exhausted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.