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:
May. 19, 1987
Filed:
Nov. 09, 1983
Aktieselskabet de Danske Sukkerfabrikker, Copenhagen, DK;
Abstract
An apparatus for the ultra or hyperfiltration of liquids to form a permeate fraction and a concentrate fraction includes a stack of membranes and membrane support plates. The stack includes two longitudinally extending main flow passages connected with a plurality of flow passages extending along the surfaces of the membranes. There is provided a device for blocking the flow of liquid from one main flow passage to the other in a zone around the center line between the two main flow passages. Ribs may be provided having a height which increases when viewed in a direction from the central part towards the periphery of a membrane support plate with the object of obtaining an improved distribution of liquid over the membrane surfaces.