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. 25, 1994
Filed:
Apr. 16, 1993
Applicant:
Inventors:
Marlin A Frank, Minneapolis, MN (US);
Kenneth J Merchak, Hudson, WI (US);
Assignee:
Ecowater Systems, Inc., Woodbury, MN (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210 90 ; 2102572 ; 210259 ;
Abstract
A reverse osmosis water processing and storage system having a prefilter, reverse osmosis membrane assembly, and a storage volume contained within a first tank. The prefilter and reverse osmosis membrane assembly are located within a second tank which is in turn located within an expandable bladder which is received within the first tank. Processed water is stored in the volume provided between the second tank and the expandable bladder.