Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Material level or thickness responsive
Patent
1980-03-14
1982-06-01
Cintins, Ivars C.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Material level or thickness responsive
210 91, 210 94, 210 961, 210104, 210190, B01J 4714
Patent
active
043326781
ABSTRACT:
A system for softening water comprising a regeneratable softener having an ion-exchange resin exposable to the water, a salt reservoir containing a supersaturated sodium-chloride solution for the regeneration of the resin, and a water hardness detector including a housing containing an ion-exchange shrink resin charge regeneratable by the solution, the shrink resin charge being exposable to water having passed through at least a part of the resin in the softener. The detector further includes a piston reciprocable within the tank, which piston contacts a single free surface of the shrink resin charge at least during detection of water hardness. The regeneration of the softener is initiated in response to the position of the piston.
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patent: 3928200 (1975-12-01), Calmon
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patent: 4158628 (1979-06-01), Fleckensteim
Cintins Ivars C.
Farber Martin A.
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