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:
Oct. 29, 1985
Filed:
Dec. 21, 1983
Tadashi Inoue, Fujisawa, JP;
Tetsuro Tanaka, Yokohama, JP;
Asahi Kasei Kogyo Kabushiki Kaisha, Osaka, JP;
Abstract
A method and apparatus is provided for effecting dehydration of a water-containing substance held in a receiving compartment formed in an intervening space between a cathode and an anode by means of the electro-osmotic force of a microporous membrane. The apparatus of this invention has a semipermeable membranes disposed as diaphragms for the receiving compartment and the microporous membrane disposed on the anode side of the diaphragms arranged on the cathode side. It effects the dehydration of the water-containing substance by passing electric current between the two electrodes and discharges the water resulting from the dehydration through a space formed between the microporous membrane and the cathode side diaphragm. By this invention, various water-containing substances such as aqueous solutions, colloids, pastes, dispersions, and gels, which the conventional methods and apparatuses dehydrate with great difficulty, can be dehydrated at high speed with high efficiency.