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:
Jun. 30, 1992
Filed:
Sep. 28, 1990
Applicant:
Inventor:
Frederick P Chlanda, Rockaway, NJ (US);
Assignee:
Allied-Signal Inc., Morris Township, Morris County, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
2041824 ; 204301 ; 204252 ;
Abstract
The present invention relates to an improved apparatus of the type containing membranes which are selectively permeable to ion transport and a related method. The apparatus comprises at least one guard membrane located adjacent to a first membrane. The apparatus comprises at least one unit cell comprising at least one first membrane having at least one ion selective layer selected from the group consisting of an anion selective layer and cation selective layer. There is at least one separate guard membrane adjacent to at least one first membrane.