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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:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 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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