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:
Mar. 08, 1994
Filed:
Sep. 15, 1992
Applicant:
Inventors:
Li-Shiang Liang, Berlin, MA (US);
Gary C Ganzi, Lexington, MA (US);
Frederick Wilkins, Pepperill, MA (US);
Assignee:
IP Holding Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
204301 ;
Abstract
A novel electrodeionization apparatus is disclosed. The apparatus includes a plurality of disk-shaped concentrating and diluting cell pairs which provide an apparatus which minimizes losses of ion exchange membrane efficiency due to membrane sealing to compartment spacers. In addition, a novel method for filling individual cells or cell pairs with ion exchange resins is disclosed.