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:
Apr. 08, 1997
Filed:
Sep. 07, 1995
Applicant:
Inventors:
Wolfgang Demmer, Gottingen, DE;
Hans-Heinrich Horl, Bovenden, DE;
Dietmar Nussbaumer, Gottingen, DE;
Abdul R Weiss, Gottingen, DE;
Assignee:
Sartorius AG, Gottingen, DE;
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210232 ; 21032161 ; 21032184 ;
Abstract
A dead-end filtration unit without a housing comprising at least one filter cassette, each cassette comprising a plurality of laminar sections of porous adsorptive membrane, which have been rendered fluid-impermeable on their peripheries, the cassettes being sealingly compressed between two filter retainers fitted with feed inlet and permeate outlet and wherein the laminar sections are made of the same or different membrane adsorber types.