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:
Feb. 23, 2021
Filed:
Oct. 16, 2018
Applicant:
Massachusetts Institute of Technology, Cambridge, MA (US);
Inventors:
Amos G. Winter, Somerville, MA (US);
Natasha Catherine Wright, Cambridge, MA (US);
Assignee:
Massachusetts Institute of Technology, Cambridge, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D 61/46 (2006.01); B01D 61/44 (2006.01); B01D 63/10 (2006.01); C02F 1/469 (2006.01); C02F 103/06 (2006.01);
U.S. Cl.
CPC ...
B01D 61/46 (2013.01); B01D 61/44 (2013.01); B01D 63/10 (2013.01); C02F 1/4693 (2013.01); B01D 2313/345 (2013.01); B01D 2325/42 (2013.01); C02F 2103/06 (2013.01);
Abstract
A spiral-wound electrodialysis module includes an inner electrode positioned about a central axis and an outer electrode surrounding the inner electrode. Ion exchange membranes are arranged in a stack, and each membrane extends in a spiral outward from an inner position proximate the inner electrode to an outer position proximate the outer electrode. The spirals expand outward at a greater-than-linear rate as a function of angle along a length of the spiral from the inner positions to the outer positions.