Circuit and apparatus for controlling a water softener
US4299698A · kind A · utility
23Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1980 |
| Grant date | Nov 10, 1981 |
| Priority date | — |
| Expiry date | Oct 21, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J49/85
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A novel electronic control circuit which utilizes an improved and greatly simplified arrangement for producing the reference voltage and which includes a probe which includes two pairs of spaced electrodes which are connected in a bridge circuit so that both a reference signal and a control signal is obtained for closing an energizing circuit and latch it until it is time for regeneration and in which the regeneration will occur only at preset times so as to not interfere with normal use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.