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. 19, 1991
Filed:
Sep. 06, 1989
Applicant:
Inventors:
Leonard T Hodgins, Closter, NJ (US);
Edgar Samuelsen, Brooklyn, NY (US);
Assignee:
Membrex, Inc., Fairfield, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
21032168 ; 21050024 ; 21050038 ; 21050043 ;
Abstract
A rotary filtration device having at least two members, one at least partially within the other to define a fluid gap therebetween, is disclosed. One or more filters are located on one or more of the members facing the fluid gap. Sufficient uncharged hydrophilic polar groups, preferably uncharged substituted amide groups, are located on the surface of the filter to render the surface hydrophilic.