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:
Sep. 27, 1988
Filed:
Jan. 15, 1988
James D Aid, St. Petersburg, FL (US);
Baxter Travenol Laboratories, Inc., Deerfield, IL (US);
Abstract
A water purification system includes a water purifying module having an inlet, a first outlet for purified product water and a second outlet for untreated concentrate water. An inlet line is connected to the module inlet, a purified water line is connected to the first outlet, and a drain line is connected to the second outlet. A first return line including a check valve is connected between the purified water line and the inlet line, and a second return line is connected between the drain line and the inlet line. Water to be treated is supplied to the inlet line by a pressure regulator, which provides regulated water pressures in the inlet line, the first and second return lines, and the purified water line.