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. 21, 1993
Filed:
Mar. 24, 1992
Tadashi Uragami, Mino, JP;
Yoshiaki Tanaka, Takaishi, JP;
Lignyte Co., Ltd., Osaka, JP;
Abstract
An improved method for separating a particular liquid component from a solution containing two or more liquid components. The method employs a vessel divided into a solution chamber and a vacuum chamber by a permeable membrane which is a porous membrane exhibiting a superior affinity to the particular component intended to be separated than to the other components. The solution is placed in the solution chamber out of direct contact with the permeable membrane at which condition a vacuum is applied to the vacuum chamber to evaporate the solution in the chamber and draw the resulting vapors through the permeable membrane into the vacuum chamber, thereby collecting the particular component from the solution in a vapor-to-vapor permeation through the permeable membrane.