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:
Apr. 09, 2024
Filed:
Jun. 15, 2022
Applicant:
Ecowater Systems Llc, Woodbury, MN (US);
Inventors:
Malcolm Kahn, Franklin Lakes, NJ (US);
Robert Astle, Middlefield, CT (US);
Jeffrey Zimmerman, Forest Lake, MN (US);
Ravi Meruva, Lexington, MA (US);
Assignee:
Ecowater Systems LLC, Woodbury, MN (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N 33/18 (2006.01); C02F 1/42 (2023.01); G01N 27/333 (2006.01);
U.S. Cl.
CPC ...
G01N 33/1853 (2013.01); C02F 1/42 (2013.01); G01N 27/333 (2013.01); G01N 33/1813 (2013.01); G01N 33/1893 (2013.01); C02F 2209/055 (2013.01); C02F 2303/16 (2013.01);
Abstract
An apparatus for determining total hardness in a fluid stream utilizing a first and second sodium ion selective electrode (ISE). The ion selective electrodes are in electrical communication with one another, having first and second reference electrodes, respectively, with a salt bridge therebetween, where the first ISE receives hard water and the second ISE receives soft water. A least one drain receives outflow from effluent fluid from the first and second sodium ISE sensors.