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:
Dec. 31, 2002
Filed:
Jul. 27, 2000
Applicant:
Inventors:
André Grangeon, Valreas, FR;
Philippe Lescoche, Faucon, FR;
Thomas Fleischmann, Quirla, DE;
Bernd Ruschel, St Gangloff, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 7/102 ; B01D 2/905 ;
U.S. Cl.
CPC ...
B01D 7/102 ; B01D 2/905 ;
Abstract
The invention provides a membrane for cross-flow filtering of a fluid to be treated, said membrane comprising an inorganic rigid porous support defining at least one flow channel for the fluid to be treated flowing in a given direction, the surface of the channel being covered in at least one separator layer separating out from the fluid to be treated a fraction referred to as the permeate which passes through the layer and the support. According to the invention, the separator layer presents a thickness gradient that decreases in the flow direction of the fluid to be treated.