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Class Information
Number: 4/361
Name: Baths, closets, sinks, and spittoons > Flush closet > Tank only > Pressure tank > Pneumatic or hydraulic adjustability
Description: Subject matter wherein the amount of liquid in the tank is controlled by means to change the fluid and/or air pressure in the tank.










Patents under this class:

Patent Number Title Of Patent Date Issued
6584622 Method and device for timer-controlled flushing of water toilets Jul. 1, 2003
RE37921 Pressurized water closet flushing system Dec. 10, 2002
6467101 Toilet flushing and cleaning device Oct. 22, 2002
6457187 Pressurized water closet flushing system Oct. 1, 2002
6279176 Low water toilet Aug. 28, 2001
5970527 Pressurized water closet flushing system Oct. 26, 1999
5596772 Toilet flushing system with multi-diaphragm storage container having three fluid receiving chambers Jan. 28, 1997
5553333 Pressurized water closet flushing system Sep. 10, 1996
5406652 Toilet water source Apr. 18, 1995
5363513 Pressurized flushing toilet Nov. 15, 1994
5361426 Hydraulically controlled pressurized water closet flushing system Nov. 8, 1994
4707868 Toilet flushing apparatus Nov. 24, 1987
4641392 Multipurpose cleaning and transportation system Feb. 10, 1987
4304015 Pneumatic actuating device for a toilet flush valve Dec. 8, 1981
4275471 Hydraulically operated flush valve for toilet flush tanks and similar devices Jun. 30, 1981
4170048 Toilet installation Oct. 9, 1979
3996628 Water closets Dec. 14, 1976











 
 
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