Water disinfection apparatus

Details Water disinfection apparatus Water disinfection apparatus

2008-12-05

2011-12-27

Drodge, Joseph (Department: 1778)

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

C210S090000, C210S109000, C210S138000, C210S192000, C222S052000, C222S638000, C250S435000, C422S186300

Reexamination Certificate

active

08083934

ABSTRACT:
A water disinfection apparatus includes a chamber adapted for connection to a pressurized water source. An ultra violet light is oriented to shine ultra violet rays into the chamber and to disinfect water therein, and a normally closed output valve connects the chamber to a supply valve. A control senses when a connected supply valve has been opened, and is operative to turn the ultra violet light on when the connected supply valve is opened; open the output valve after the ultra violet light has been turned on; close the output valve off after a supply time period expires; and turn the ultra violet light off when the output valve has been closed. The ultra violet light is turned on at all times that the output valve is open.

REFERENCES:
patent: 4471225 (1984-09-01), Hillman
patent: 4801375 (1989-01-01), Padilla
patent: 4849100 (1989-07-01), Papandrea
patent: 4969991 (1990-11-01), Valadez
patent: 5683576 (1997-11-01), Olsen
patent: 5837147 (1998-11-01), Joung
patent: 6461520 (2002-10-01), Engelhard et al.
patent: 6468420 (2002-10-01), Kunkel
patent: 7641790 (2010-01-01), Maiden
patent: 2442903 (2004-03-01), None
patent: 3924350 (1991-01-01), None
Derwent translated Abstract for Publication DE 3924350, published Jan. 1991.

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