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. 17, 1987
Filed:
Sep. 15, 1986
Applicant:
Inventors:
Edgardo J Parsi, Lexington, MA (US);
Keith J Sims, Framingham, MA (US);
Arthur L Goldstein, Weston, MA (US);
Assignee:
Ionics Incorporated, Watertown, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25B / ; C25B / ; C25C / ; C25D / ;
U.S. Cl.
CPC ...
2042 / ; 204280 ; 2042 / ; 2042 / ; 204301 ; 204302 ; 21032172 ;
Abstract
Method and apparatus are disclosed for improving the anodic life of an electrode in an electrodialysis stack which electrode comprises at least in part an area which is anodic during at least part of the duty time of said stack, which stack also comprises an electrode compartment (chamber, cell, space) containing said electrode, a counter-electrode in a counter-electrode compartment and interior compartments between said electrode compartment and said counter-electrode compartment, which method and apparatus comprises: