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:
Jul. 05, 1977
Filed:
Nov. 17, 1975
Ora Kedem, Rehovot, IL;
Abraham Kedem, Rehovot, IL;
Yeda Research & Development Co. Ltd., Rehovot, IL;
Abstract
An electrodialysis device comprising a plurality of adjacent compartments through which there flow dialysate and brine, respectively, each dialysate compartment being separated from the adjoining two brine compartments by an anion-selective and by a cation-selective membrane, respectively, the two terminal compartments being connected to an anode and to a cathode of a current source, wherein in the space between the membranes there is provided a continuous anion conductive element and a continuous cation conductive element, in contact with each other, each of these consisting of a different kind of ion-exchange material, the anion selective material being in contact with the anion-selective membrane, the cation selective exchange material being in contact with the cation selective membrane, the electric resistance of said elements being lower than that of the dialysate, said elements providing a path for the different ions across a larger part of the distance between the membranes.