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:
Jun. 01, 1982
Filed:
Jan. 26, 1978
Applicant:
Inventors:
Duane D Nowlin, New Brighton, MN (US);
Dennis G Winberg, Cottage Grove, MN (US);
Assignee:
Ecodyne Corporation, Chicago, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210638 ; 2102572 ; 2103211 ; 2104332 ;
Abstract
Water softened by ion exchange is pumped through a reverse osmosis material. The water treated by reverse osmosis may be stored under pressure and the reverse osmosis waste stream is recycled through the ion exchanger. The stored volume of water treated by reverse osmosis is approximately equal to or less than the volume of water that can be stored in the ion exchanger.