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. 06, 2001
Filed:
Apr. 14, 2000
Applicant:
Inventors:
Gary C. Ganzi, Lexington, MA (US);
Frederick Wilkins, Pepperell, MA (US);
Anthony J. Giuffrida, North Andover, MA (US);
Assignee:
United State Filter Corporation, Palm Desert, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 6/148 ;
U.S. Cl.
CPC ...
B01D 6/148 ;
Abstract
A continuous electrodeionization apparatus and method. The continuous electrodeionization apparatus and method provide improved removal of weakly ionized ions, particularly silica. The apparatus and method involves using macroporous ion exchange resins that are both highly crosslinked and have a high water content. In preferred embodiments, the ion exchange resin beads also have a substantially uniform diameter.