Circuit and apparatus for controlling a water softener

Details Circuit and apparatus for controlling a water softener Circuit and apparatus for controlling a water softener

1980-10-21

1981-11-10

Cintins, Ivars C.

Liquid purification or separation

Constituent mixture variation responsive

210140, B01J 4900

Patent

active

042996988

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.

REFERENCES:
patent: 3159573 (1964-12-01), Ritchie
patent: 3373351 (1968-03-01), Rak
patent: 3675041 (1972-07-01), Elliott et al.
patent: 3768649 (1973-10-01), Fleckenstein
patent: 3926071 (1975-12-01), Elliott
patent: 4257887 (1981-03-01), Rak et al.

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