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, 1991
Filed:
Oct. 17, 1990
Walter Hilgendorff, Tespe, DE;
Gerhard Kahn, Geesthacht, DE;
GKSS Forschungszentrum Geesthacht GmbH, Geesthacht, DE;
Abstract
An apparatus for separating fluid mixtures by membrane elements, which are spaced and arranged into a membrane element stack via a supporting frame that comprises outer and inner rings, whereby the membrane elements have a boring for draining a permeating substance. The boring has an inlet port for introducing the mixture into the apparatus and an outer port for the retained substance as well as the permeating substance. In mixture compartments, formed by the membrane elements between said inner and outer rings, the mixture to be separated flows past areas of the membrane elements, having a constant effectiveness, whereby the flow cross-sections of the mixture compartments vary from the introduction port to the exit port of the membrane stack. All inner and outer rings of the membrane element stack have identical dimensions, and the differing cross-sections in the mixture compartments are adjustable at least by varying the width of the membrane elements.