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.:

US 6648174 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 18, 2003

Filed:

Nov. 28, 2001
Applicant:
Inventor:

Ralph G. Greene, Dalton, GA (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B67D 5/62 ;
U.S. Cl.
CPC ...
B67D 5/62 ;
Abstract

A water treatment tank for use with water purification apparatus including an ultra-violet lamp within a bulb onto which incoming water is directed to provide a thin laminar flow about the bulb. The tank may have two compartments, one above the other, formed by a separating baffle. The lower compartment has cooling coils about the walls for cooling the water therein relative to the water in the upper compartment. The ultraviolet lamp and a bulb extends through both compartments and the baffle to purify the water. A controller operates a switch to turn the normally off UV lamp on before opening a fill valve to replenish water in the tank. The lamp is turned off after a first run time. The water level is sensed by a low and high level limit which allow for a volume of water in the tank which may be utilized without necessitating operation of the lamp upon each dispensing of water from the tank. If water is not sensed increasing during filling, the controller may shut the fill valve and turn off the lamp, wait a period of time, and try again. The run time of the lamp may be increased with lamp age and the lamp may be cycled on for run times during periods of non-use.


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