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:
Nov. 04, 2025
Filed:
Jan. 09, 2024
Bl Technologies, Inc., Minnetonka, MN (US);
John H. Barber, Guelph, CA;
Wojciech Gutowski, Guelph, CA;
Yongchang Zheng, Westborough, MA (US);
Russell James Macdonald, Westborough, MA (US);
BL TECHNOLOGIES, INC., Minnetonka, MN (US);
Abstract
The present disclosure provides an electrodialysis stack that may be used for the treatment of an electrically conductive solution. The stack includes two electrodes (at least one is a recessed electrode), a plurality of ion-transport membranes and stack spacers. The membranes and spacers are arranged between the electrodes to define electrodialysis cell pairs. The stack includes an electrically insulated zone that extends substantially from a distribution manifold past the recessed edge of the electrode and substantially from the recessed electrode to the opposite electrode for a distance that is about 8% to 100% of the total distance between the electrodes. The overlap distance that the electrically insulated zone extends past the recessed edge of the electrode is calculated as:distance in cm=(0.062 cm)*(exp(−60/total cp)*(area in cmof the manifold ducts of the concentrated stream at the recessed edge)+/−10%.