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Class Information
Number: 4/431
Name: Baths, closets, sinks, and spittoons > Flush closet > Bowl > Pump or suction-type discharge
Description: Subject matter including means located in the discharge from the bowl through which means the discharged material flows and which directly applies a force to the discharged material to move the material away from the bowl.










Sub-classes under this class:

Class Number Class Name Patents
4/432 With flush supply pump 25


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8690487 Arrangement for noise reduction in vacuum systems Apr. 8, 2014
8677519 Drainage connector Mar. 25, 2014
8621677 Odour seal for a vacuum toilet drain system Jan. 7, 2014
8607370 Flush valve and vacuum generator for vacuum waste system Dec. 17, 2013
8590070 Water-saving toilet bowl without water tank Nov. 26, 2013
8578959 Rinse valve for vacuum waste system Nov. 12, 2013
8556544 Arrangement for noise reduction in vacuum systems Oct. 15, 2013
8528124 Flushing apparatus for a vacuum toilet having a nozzle arrangement Sep. 10, 2013
8468616 Vacuum-aided toilet Jun. 25, 2013
8465652 Method for disinfecting sewage sludge Jun. 18, 2013
8418715 Control system Apr. 16, 2013
8418277 Flush toilet Apr. 16, 2013
8397318 Flushing system for a vacuum toilet Mar. 19, 2013
8381324 Vacuum sewage system Feb. 26, 2013
8341773 System for flushing a vacuum toilet and toilet cover for a system of this type Jan. 1, 2013
8291525 Vacuum waste system and method for using the same Oct. 23, 2012
8281424 Flush toilet Oct. 9, 2012
8185977 System for flushing of a vacuum toilet in an aircraft May. 29, 2012
7980513 Water-wastewater module for aircraft Jul. 19, 2011
7861331 Reduced water consumption flush toilet Jan. 4, 2011
7845028 Vacuum sewer system Dec. 7, 2010
7770241 Vacuum sewer system Aug. 10, 2010
7690053 Vacuum toilet assembly Apr. 6, 2010
7373946 Vacuum tank assembly May. 20, 2008
7207073 Vacuum assisted toilet Apr. 24, 2007
6910231 Toilet system with a toilet pan Jun. 28, 2005
6782563 Vacuum tank construction Aug. 31, 2004
6732386 Rinse fluid valve for a vacuum toilet May. 11, 2004
6704947 Discharge valve for a vacuum toilet Mar. 16, 2004
6681412 PTFE membrane filter for exhaust air of vacuum toilet system Jan. 27, 2004
6648002 Vacuum sewer system Nov. 18, 2003
6625822 Toilet with a modular vacuum flush system Sep. 30, 2003
6618866 Vacuum tank construction Sep. 16, 2003
6536054 Vacuum toilet bowl assembly having removable bowl Mar. 25, 2003
6536055 Modular vacuum toilet with line replaceable units Mar. 25, 2003
6513174 Vacuum unit and a vacuum toilet system comprising such a unit Feb. 4, 2003
6510564 Vacuum toilet system for a vehicle Jan. 28, 2003
6453481 Vacuum waste system having a vacuum control valve Sep. 24, 2002
6434759 Automatically operable lid for a vacuum waste receptacle Aug. 20, 2002
6421843 Low water volume toilet Jul. 23, 2002
6401270 Toilet apparatus Jun. 11, 2002
6397407 Vacuum toilet system with single pump Jun. 4, 2002
6393635 Galley waste disposal system and method May. 28, 2002
6385789 Vacuum gallery waste disposal system May. 14, 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
6357056 Water saving toilet system Mar. 19, 2002
6353942 Modular vacuum toilet with line replaceable units Mar. 12, 2002
6349424 Rinse fluid valve for a vacuum toilet Feb. 26, 2002

1 2 3










 
 
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