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:
Jan. 21, 1997
Filed:
Aug. 21, 1995
Applicant:
Inventor:
Ronald D Sanderson, Stellenbosch, ZA;
Assignee:
Water Research Commission, , ZA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ;
U.S. Cl.
CPC ...
210640 ; 21032175 ; 21032174 ; 210175 ; 210180 ; 210900 ; 210486 ; 96-4 ; 203 10 ; 202200 ;
Abstract
A water purification device comprises a compartment for holding a supply of impure water; a purified water collection zone; and a dense hydrophilic membrane between the compartment and the purified water collection zone. The membrane is capable of functioning by membrane distillation. A water vapour condensing surface is provided in the purified water collection zone. The condensing surface is spaced from the membrane.