Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Household
Class Information
Number: 4/323
Name: Baths, closets, sinks, and spittoons > Flush closet > With holding tank > And valve for emptying
Description: Subject matter including means by which the flow of waste material from the tank may be started or regulated.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8656963 Vehicle wastewater drainage system Feb. 25, 2014
8516622 Sanitary system for a vehicle including a removable holding tank Aug. 27, 2013
8418715 Control system Apr. 16, 2013
RE42688 Vehicle wastewater drainage system Sep. 13, 2011
7845028 Vacuum sewer system Dec. 7, 2010
7562399 Toilet flusher for water tanks with novel valves and dispensers Jul. 21, 2009
7476368 Method and device for deactivating items and for maintaining such items in a deactivated state Jan. 13, 2009
7431051 Sewage system for vehicles Oct. 7, 2008
7293299 Tank flush system Nov. 13, 2007
7203976 Floor level waste pumping system for toilets Apr. 17, 2007
6910231 Toilet system with a toilet pan Jun. 28, 2005
6866072 Effluent disposal system for railways Mar. 15, 2005
6810898 Hose access port for recreational vehicles and trailers Nov. 2, 2004
6804840 Positive pressure waste transfer system Oct. 19, 2004
6745407 Systems and methods for waste disposal for use in a vehicle Jun. 8, 2004
6729368 Lavatory service shut off valve May. 4, 2004
6651266 Flushing method of toilet, toilet used for carrying out said method and components thereof Nov. 25, 2003
6607009 Sewage system for vehicles Aug. 19, 2003
6442771 Flushing device Sep. 3, 2002
6360768 Control apparatus for pneumatic evacuation and water valves, operated by vacuum pressure Mar. 26, 2002
6352088 Vehicle wastewater drainage system Mar. 5, 2002
6240986 Recreational vehicle sanitary sewer connector Jun. 5, 2001
6234197 Holding tank vacuum relief May. 22, 2001
6216285 Waste transport arrangement Apr. 17, 2001
6189161 Toilet for recreational vehicle with vent for the holding tank Feb. 20, 2001
6151724 Toilet tank water conservation device Nov. 28, 2000
6143185 Treatment system for aircraft toilet waste water Nov. 7, 2000
6128788 Water closet and nursing bed device with same Oct. 10, 2000
6081935 Technologically advanced portable toilet and method of supplying purifying agent thereto Jul. 4, 2000
6065493 Vacuum relief valve for sewage holding tank May. 23, 2000
6029707 Water handling system Feb. 29, 2000
6006766 Sewer line flushing system and method Dec. 28, 1999
5980756 Treatment method and system for aircraft toilet waste water Nov. 9, 1999
5871027 Vacuum valve controller Feb. 16, 1999
5781940 Portable, collapsible, self-contained toilet apparatus Jul. 21, 1998
5678597 Closure arrangement for a toilet system with a closed collection tank Oct. 21, 1997
5621924 Vacuum tank construction for a vacuum toilet assembly Apr. 22, 1997
5615701 Vacuum valve control device and vacuum valve Apr. 1, 1997
5557810 Portable toilet with battery operated flush assembly Sep. 24, 1996
5449016 Sewage system Sep. 12, 1995
5445190 Gate valve actuator Aug. 29, 1995
5439198 Valve apparatus Aug. 8, 1995
5408704 Low volume vacuum toilet assembly Apr. 25, 1995
5396668 System for discharging wastes Mar. 14, 1995
5330152 Flush valve chock Jul. 19, 1994
5318275 Portable waste holding tank with improved inlet valve assembly Jun. 7, 1994
5282281 Portable vacuum toilet system Feb. 1, 1994
5259427 Package system for collection-transport of waste liquids Nov. 9, 1993
5247974 Pneumatic sealing device for waste disposal systems Sep. 28, 1993
5237709 Apparatus for providing a controlled flow of waste material from a waste storage tank Aug. 24, 1993

1 2 3










 
 
  Recently Added Patents
Use of natural query events to improve online advertising campaigns
System and method for redundant array copy removal in a pointer-free language
Polymeric compositions including their uses and methods of production
Digital fine delay processing
Polarized film apparatus with bands of alternating orientation
Handover signaling in wireless networks
Pre-sealing unit for wire-cut electric discharge machine
  Randomly Featured Patents
Filter medium forming system and process
Valve and components therefor
Process of selective bioconversion of isosorbitol dinitrate
Mark forming method, mark forming apparatus and analyzing apparatus
Read/write head and method for magnetic reading and magneto-optical writing on a data storage medium
Fluorescent standard for scanning devices
Outboard motor
Solid compositions for washing, cleaning and bleaching and processes for their manufacture and their use
Information processing apparatus
Receiver and the compensation method therefor