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Class Information
Number: 4/227.4
Name: Baths, closets, sinks, and spittoons > Disinfection > Dispensing to water in flush tank > Water level actuated
Description: Subject matter wherein the dispenser is activated by the rise or fall of the water level in the flush tank to discharge the 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
4/227.5 Static dispenser (i.e., no moving part) 26


Patents under this class:

Patent Number Title Of Patent Date Issued
8484769 System for delivering chemicals to a toilet bowl Jul. 16, 2013
8166580 Dispensing device and valve for use therewith May. 1, 2012
8032953 Liquid dispensing device Oct. 11, 2011
8015628 On-tank toilet dispenser Sep. 13, 2011
7832025 Dispenser for releasing treatment composition into a toilet bowl Nov. 16, 2010
7549181 Toilet lid apparatus Jun. 23, 2009
7007312 Automatic cleaning assembly for a toilet bowl Mar. 7, 2006
6948193 Lavatory cleanser dispensing device Sep. 27, 2005
6944890 Automatic cleaning assembly for a toilet bowl Sep. 20, 2005
6820287 Down-stroke dispenser Nov. 23, 2004
6748610 In-tank dispenser with flexible supported valve head Jun. 15, 2004
6738989 Dispenser for use in a tank of water May. 25, 2004
6662379 Toilet cleaning dispenser system with removable cartridge Dec. 16, 2003
6651260 Toilet tank top with easy access to drop in deodorizing discs Nov. 25, 2003
6101639 Device for dispensing toilet bowl cleaning agent Aug. 15, 2000
6055678 Dispenser system in a water tank May. 2, 2000
5903930 Toilet cleansing agent dispenser May. 18, 1999
5734996 Detergent dispenser for toilets Apr. 7, 1998
5718006 Fluid dispenser Feb. 17, 1998
5333331 Flush regulator Aug. 2, 1994
5317762 Automatic toilet cleaner device Jun. 7, 1994
5237710 Flush regulator Aug. 24, 1993
5152015 Additive product dispensing apparatus Oct. 6, 1992
5038417 Container for distributing doses of treatment fluid Aug. 13, 1991
4872222 Toilet-tank leak detector, chemical economizer Oct. 10, 1989
4707865 Dispenser with fluid pathway including valve to form air lock Nov. 24, 1987
4491988 In-tank toilet bowl cleaner dispenser Jan. 8, 1985
4451941 Toilet bowl sanitizer dispenser Jun. 5, 1984
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
4110853 Dispensing device Sep. 5, 1978
3945060 Liquid dispensing bottle-hanger construction Mar. 23, 1976











 
 
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