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. 06, 1998
Filed:
Dec. 20, 1996
William J Souza, Fall River, MA (US);
American Dryer Corporation, Fall River, MA (US);
Abstract
A water purification apparatus for purifying input water and dispensing a user selected quantity of purified water into a portable container in response to deposit of a predetermined amount of money. The apparatus comprises a first purified water path and a second purified water path. The first purified water path includes a reverse osmosis filter and a storage tank. The second purified water path includes an ultraviolet sterilizing unit connected between the tank and a dispensing unit with one or more dispensing valves. A recirculation water path periodically recirculates tank water through the ultraviolet sterilizing apparatus to improve and maintain the purity thereof. Another water recirculation path may be provided to recirculate concentrate from the reverse osmosis filter to a filter inlet line where it is mixed with input water.