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Class Information
Number: 4/434
Name: Baths, closets, sinks, and spittoons > Flush closet > Bowl > Valved dischage
Description: Subject matter wherein the bowl outlet is controlled by a valve directly connected to the bowl.










Sub-classes under this class:

Class Number Class Name Patents
4/441 Pivoted valve 26
4/435 With flush supply actuated by valved discharge 39


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8607370 Flush valve and vacuum generator for vacuum waste system Dec. 17, 2013
8555428 Plumbing fixture with flush valve actuator and methods of calibrating same Oct. 15, 2013
8516623 Tilting-bowl toilet Aug. 27, 2013
8490222 Low-water-flow toilets and low-water-flow urinals Jul. 23, 2013
8490223 Toilet with ball valve mechanism and secondary aerobic chamber Jul. 23, 2013
8418715 Control system Apr. 16, 2013
8307470 Toilet flushing without using a toilet tank Nov. 13, 2012
8230533 Toilet bowl discharge valve assembly Jul. 31, 2012
8185977 System for flushing of a vacuum toilet in an aircraft May. 29, 2012
8065756 Tilting-bowl toilets Nov. 29, 2011
7886374 Passively discharging and water-saving toilet bowl Feb. 15, 2011
7845028 Vacuum sewer system Dec. 7, 2010
7770241 Vacuum sewer system Aug. 10, 2010
7765625 Flush toilet assembly Aug. 3, 2010
7331069 Water-saving flush toilet Feb. 19, 2008
6981285 Toilet and method of operation Jan. 3, 2006
6977005 Waterless vacuum toilet system for aircraft Dec. 20, 2005
6899309 Beverage container holder and method of advertising May. 31, 2005
6883188 Toilet and method of operation Apr. 26, 2005
6804840 Positive pressure waste transfer system Oct. 19, 2004
6782564 Water-saving toilet Aug. 31, 2004
6704947 Discharge valve for a vacuum toilet Mar. 16, 2004
6668391 Water-saving toilet Dec. 30, 2003
6584623 Flush toilet for RV's and boats Jul. 1, 2003
6536055 Modular vacuum toilet with line replaceable units Mar. 25, 2003
6536054 Vacuum toilet bowl assembly having removable bowl Mar. 25, 2003
6496988 Compact recycling electric dehydration toilet Dec. 24, 2002
6442771 Flushing device Sep. 3, 2002
6397407 Vacuum toilet system with single pump Jun. 4, 2002
6374431 Vacuum toilet system with single pump Apr. 23, 2002
6370709 Discharge valve having a disk with a flushing aperture and an air intake aperture for a vacuum toilet Apr. 16, 2002
6360768 Control apparatus for pneumatic evacuation and water valves, operated by vacuum pressure Mar. 26, 2002
6353942 Modular vacuum toilet with line replaceable units Mar. 12, 2002
6349425 Valve set for a vacuum toilet Feb. 26, 2002
6347416 Vacuum toilet bowl assembly having a removable bowl Feb. 19, 2002
6279176 Low water toilet Aug. 28, 2001
6243887 Sewer system Jun. 12, 2001
6240575 Evacuation system provided with a shut-off valve, and process for maintaining in operating conditions a shut-off valve in a vaccum evacuation system Jun. 5, 2001
6216285 Waste transport arrangement Apr. 17, 2001
6195810 Flushing device for disposing of human waste with improved drainage properties Mar. 6, 2001
6128789 Method and device for operating the water flushing and the discharge valve in a toilet or the like connected to a vacuum sewer Oct. 10, 2000
6128788 Water closet and nursing bed device with same Oct. 10, 2000
6119283 Method and apparatus for evacuation of liquids Sep. 19, 2000
6085366 Apparatus for supplying pressurized rinse water to a toilet Jul. 11, 2000
5956780 Vacuum flush waste disposal system for railcars Sep. 28, 1999
5937888 Toilet waste collection system for campgrounds Aug. 17, 1999
5933882 Lever-actuated flush toilet Aug. 10, 1999
5933880 Assembled toilet bowl Aug. 10, 1999
5906011 Dual foot pedal-operated flush toilet May. 25, 1999
5873136 Pop-up bowl valve for toilet with two flush modalities Feb. 23, 1999

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