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. 13, 1977
Filed:
Jun. 09, 1976
Wolfram Saupe, Konigsstein, DT;
Hoechst Aktiengesellschaft, Frankfurt am Main, DT;
Abstract
A method of membrane filtration of a liquid and an apparatus for carrying out such a method, the apparatus comprising at least two support members including a first and a last support member of porous material arranged in series each support member including a plurality of liquid flow passageways therethrough, whereby liquid flow from the inlet means to the outlet means is possible; inlet means for admitting a liquid to be filtered to the first support member; outlet means for withdrawing a concentrate from the last support member; a semipermeable membrane covering all surfaces of the support members in contact with the liquid; means for providing that flow of liquid from one support means to the next is only via the passageways; and means associated with each support member for withdrawing permeate from therewithin.