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:
Aug. 12, 1980
Filed:
Aug. 09, 1978
Applicant:
Inventors:
Ora Kedem, Rehovot, IL;
Abraham Kedem, Rehovot, IL;
Menashe Lev, Ramt-Gan, IL;
Gerald B Tanny, Rehovot, IL;
Rami Messalem, Beer Sheva, IL;
Assignee:
Yeda Research & Development Co. Ltd., Rehovot, IL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
204301 ; 2041 / ; 204296 ;
Abstract
According to the present invention there is provided a novel type of membrane unit for use in electrodialysis comprising a heat-sealable frame framing and forming an integral entity with an electrodialysis membrane. The frame may be a regular frame, or a two-frame structure framing a single membrane. The invention further relates to electrodialysis devices such as stacks, bags, cells, spiral units and the like based on such membrane units, which are hermetically bonded by heat-sealing to similar units or to polymeric or other members.