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Class Information
Number: 4/227.5
Name: Baths, closets, sinks, and spittoons > Disinfection > Dispensing to water in flush tank > Water level actuated > Static dispenser (i.e., no moving part)
Description: Subject matter wherein the dispenser is a passive structure (having no moving parts) that is actuated by the rise or fall of the water level in the flush tank to discharge a chemical into the water of the flush tank for the purpose of disinfecting, deodorizing, cleaning, or coloring the water.










Sub-classes under this class:

Class Number Class Name Patents
4/227.6 Having a flush water dosing chamber 40


Patents under this class:

Patent Number Title Of Patent Date Issued
8166580 Dispensing device and valve for use therewith May. 1, 2012
8015629 Dispensing device Sep. 13, 2011
7073209 Passive sanitizing-tablet dispensing device Jul. 11, 2006
6748610 In-tank dispenser with flexible supported valve head Jun. 15, 2004
6651260 Toilet tank top with easy access to drop in deodorizing discs Nov. 25, 2003
6145137 Toilet water saver alert system Nov. 14, 2000
6119281 Devices for metering fluids in response to level changes Sep. 19, 2000
6101639 Device for dispensing toilet bowl cleaning agent Aug. 15, 2000
6003161 Toilet water saver alert system Dec. 21, 1999
5460718 Domestic water treating device including permanent magnet means Oct. 24, 1995
5353957 Apparatus and method for controlled dispensing of a liquid Oct. 11, 1994
5347661 Water conditioner dispensing apparatus Sep. 20, 1994
5188755 Surface erodible controlled releasing, free standing cleansing block and cleaning method for the domestic water closet Feb. 23, 1993
5074328 Metering device for a water-activatable agent Dec. 24, 1991
4916760 Dispensing device Apr. 17, 1990
4632350 Rotatable and vertically adjustable dispenser suspension means Dec. 30, 1986
4455692 Chemical dispenser safety hanger Jun. 26, 1984
4251012 Passive liquid dosing dispenser Feb. 17, 1981
4212089 Process for aromatizing and/or deodorizing the environment surrounding the flush tank of a toilet Jul. 15, 1980
4209864 Cleanser and/or sanitizer and aroma emitting attachment for toilets and process for using same Jul. 1, 1980
4209863 Process for aromatizing and/or deodorizing the environment surrounding the flush tank of a toilet Jul. 1, 1980
4168550 Cleanser and/or sanitizer and aroma emitting attachment for toilets Sep. 25, 1979
4131958 Dispensation of concentrated solution into toilet flush tank Jan. 2, 1979
3965497 Toilet chemical dispenser Jun. 29, 1976
3953902 Water closet additive means May. 4, 1976
3945062 Toilet chemical dispenser Mar. 23, 1976











 
 
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