The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 24, 1981
Filed:
Sep. 26, 1979
Applicant:
Inventors:
Stanley F Rak, Mundelein, IL (US);
Donald P DeVale, Sycamore, IL (US);
Assignee:
Culligan International Company, Northbrook, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
210 961 ; 210140 ;
Abstract
A novel electronic control circuit which includes a probe for detecting the conductivity in ion exchange material in a water softener and wherein the probe includes two pairs of spaced electrodes which are connected in a bridge circuit and connected so as to close an energizing circuit and latch it until it is time for regeneration and wherein the regeneration is controlled so that it will occur only at those times which are preset as, for example, during the night when the regeneration will not interfere with normal use of the water supply.