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. 22, 1976
Filed:
Dec. 11, 1974
Applicant:
Inventors:
Tamiyuki Eguchi, Kobe, JA;
Satoshi Imai, Kobe, JA;
Assignee:
Kanegafuchi Kagaku Kogyo Kabushiki Kaisha, Osaka, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
2104 / ; 210487 ; 2104 / ;
Abstract
A membrane separation apparatus adapted for use in ultrafiltration is provided comprising a casing and a membrane unit enclosed therein, said membrane unit comprising a composite membrane folded flatly in zigzag relation to form a plurality of stacked layers defining a plurality of first flow channels in alternately interleaving relation thereto, said composite membrane being made of a flexible porous support and having a pair of selectively permeable membranes on opposite outer surfaces thereof and a second flow channel therebetween.