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Class Information
Number: 4/316
Name: Baths, closets, sinks, and spittoons > Flush closet > Reduced gravity environment type
Description: Subject matter having an arrangement which will permit the closet to be operated at a lower pressure or near zero gravity.










Patents under this class:

Patent Number Title Of Patent Date Issued
8424130 Toilet monument with receptacle for a mobile sanitary unit Apr. 23, 2013
8397318 Flushing system for a vacuum toilet Mar. 19, 2013
8291525 Vacuum waste system and method for using the same Oct. 23, 2012
8142572 Lavatory pan washing apparatus and washing method Mar. 27, 2012
6977005 Waterless vacuum toilet system for aircraft Dec. 20, 2005
6330725 Vacuum toilet system for a vehicle Dec. 18, 2001
6143185 Treatment system for aircraft toilet waste water Nov. 7, 2000
5980756 Treatment method and system for aircraft toilet waste water Nov. 9, 1999
5792369 Apparatus and processes for non-chemical plasma ion disinfection of water Aug. 11, 1998
5350369 Apparatus and methods for closed collection of human wastes Sep. 27, 1994
5342583 Patient's stool and urine disposing apparatus Aug. 30, 1994
5165457 Vacuum sewer arrangement Nov. 24, 1992
5035011 Self draining sanitation system Jul. 30, 1991
4974264 Manually operated vacuum flush water closet Dec. 4, 1990
4955090 Zero gravity toilet Sep. 11, 1990
4942632 Method for waste collection and storage Jul. 24, 1990
4937891 Valve for waste collection and storage Jul. 3, 1990
4905325 Automatic waste dump and cleaning system Mar. 6, 1990
4870709 Apparatus for waste collection and storage Oct. 3, 1989
4811754 Rinse water valve for vacuum toilet system Mar. 14, 1989
4791688 Jet pump macerator pump sewage handling system Dec. 20, 1988
4783859 Aircraft toilet flush valve Nov. 15, 1988
4713847 Vacuum toilet system Dec. 22, 1987
4520513 Automatic vacuum urinal flush mechanism Jun. 4, 1985
4376315 Vacuum flush valve Mar. 15, 1983
4360933 Urine suction and collection device for a vacuum suction type urinating aid Nov. 30, 1982
4357719 Non recirculating method of disposing of waste products for aircrafts Nov. 9, 1982
4332041 Pressurized drain for toilet waste tank Jun. 1, 1982
4297751 Sewer system Nov. 3, 1981
4276663 Toilet facility Jul. 7, 1981
4275470 Vacuum-flush toilet arrangement for aircraft Jun. 30, 1981
4214324 Human waste storage and disposal systems for railroads or the like Jul. 29, 1980
4202061 Lavatory wastewater disposal system for aircraft May. 13, 1980
4063315 Vacuum toilet system Dec. 20, 1977
4041554 Vacuum flush water closet Aug. 16, 1977
3995328 Vacuum toilet system Dec. 7, 1976











 
 
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