"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 7725961 | Portable toilet A portable toilet is provided comprising a bowl provided with an outlet and at least one spout. A flush tank is adapted to store a fluid, wherein the flush tank is adapted to be pressurized. A manually-actuated pump is in sealed communication with the flush tank, wh... | 06/01/2010 |
| 7313833 | Vehicle emergency toilet system Inventive disclosures made herein comprise various embodiments of a vehicle emergency toilet system having portions built into the seat of the vehicle. The toilet equipped vehicle seats having a toilet with a disposable waste receiving reservoir built into a seat po... | 01/01/2008 |
| 7293298 | Self-contained sanitary system for a vehicle A self-contained sanitary system for a vehicle includes a toilet with a flush tank for storing a source of flush water. The system further includes a spout in fluid communication with the flush tank. The spout has a first open end coupled to the flush tank and a sec... | 11/13/2007 |
| 7293299 | Tank flush system A Recreational Vehicle tank flush system is provided in which the existing vent pipe to the blackwater tank is modified by attaching an introduction tee which provides a hookup to a source of flushing water and to a hose and sprayer which may be hung just inside the... | 11/13/2007 |
| 7226115 | Folding camping trailer with flushable toilet The folding camping trailer includes a trailer body having partial height sidewalls and end walls, a vertically extendable roof section, an expandable enclosure connecting the sidewalls and end walls to the roof section, and a flush toilet disposed in the trailer bo... | 06/05/2007 |
| 7207073 | Vacuum assisted toilet A toilet is provided with a vacuum to assist in the flushing process. The vacuum is provided downstream between the toilet bowl and a waste outlet to draw the waste contents of the toilet bowl and out of the toilet bowl to the waste outlet under pressure. A controll... | 04/24/2007 |
| 7203976 | Floor level waste pumping system for toilets A floor level pumping system, that is non-disruptive to the existing flooring, including a conventional rear outlet toilet, a floor level tank for receiving waste and fluid from the outlet of the toilet including a tank chamber containing a designated area with a se... | 04/17/2007 |
| 7201287 | Drum vent A venting device for a drum. The venting device includes a body having a pair of opposing sides and defining a plurality of vent passages. The vent passages extend through the body and each an opening at each of the pair of opposing sides. The vent passages are spac... | 04/10/2007 |
| 7192060 | Fluid storage and transport system A fluid storage system and vehicle for transporting such fluid storage system are provided. An exemplary fluid storage system includes a fluid storage tank configured for mounting at the rear of the vehicle, the fluid storage tank having a base, at least one enclosi... | 03/20/2007 |
| 7188376 | Flexible sleeve for connection to a plumbing fixture An improved water closet flange for connection to a plumbing fixture is described. The improved flange comprises an anchoring element or outer flange, connected to a flexible conduit tube or flexible sleeve, in which is attached an O-ring type of gasket. The improve... | 03/13/2007 |
| 7137156 | Portable Lavatory A portable lavatory, which is easily loaded into a freight box of a truck and is maintained in a stable loaded state in the freight box during transportation, is disclosed. In the portable lavatory (10), the capacities of both a fresh water tank (20) a... | 11/21/2006 |
| 7124769 | High rise tower sanitary service system A system and method for servicing restrooms on the upper floors of a high rise building. The system is comprised of sections of hoses that are interconnected by valves, each valve configured to provide a user with the ability to selectively shut off the flow of mate... | 10/24/2006 |
| 7107632 | Toilet ramp A toilet ramp serving as a movable device for supporting and transporting a toilet bowl once it is lifted off from a floor comprises a body of a rectangular shape having a opening at each of the two opposite sides for inspecting and removing a wax seal underneath th... | 09/19/2006 |
| 7032255 | Waste holding tank for a mobile toilet system and mobile toilet system A waste holding tank for a mobile sanitary toilet system includes a base section, a bowl section supported by the base section and a waste holding tank. The tank includes a housing defining a tank interior and a tank exterior. A vent opening is located at a first lo... | 04/25/2006 |
| 7028347 | Digital electronic volume/flow control sensor toilet A digital electronic volume/flow control sensor toilet includes a bowl, a water storage tank interconnected with the bowl, and a digital electronic volume/flow control sensor flushing mechanism. The flushing mechanism has components including a volume sensor, a shut... | 04/18/2006 |
| 7014778 | Device and method for treating waste product A method and device are provided for treating a waste water waste-product mixture from a toilet by coupling the toilet to a waste product mixture to a waste product holding tank, connecting the tank with a vacuum container having a stirring member for breaking up th... | 03/21/2006 |
| 7005073 | Residual wastewater chlorine concentration control using a dynamic weir An automated reactor-based system for treating water includes a reactor having an inlet to provide water at an inlet flow rate into the reactor, structure for adding at least one treatment chemical to the water and structure for dynamically adjusting an output flow ... | 02/28/2006 |
| 7005077 | Shipboard human waste treatment for removing solids A method and system for separating human waste solids from liquid for a shipboard toilet system that allows for the separation of solid waste, compaction of the solid waste and storage of solid waste. Wastes are deposited into a shipboard toilet system that uses vac... | 02/28/2006 |
| 6977005 | Waterless vacuum toilet system for aircraft A waterless vacuum toilet system for an aircraft includes a toilet bowl connected via a suction valve and a waste collection pipe to a waste collection tank. Waste-contacting surfaces that come into contact with urine and fecal waste are coated with an adhesion-inhi... | 12/20/2005 |
| 6957668 | Waste water disposal system A waste water disposal system includes a carousel that is driven to extend and retract a hose that is connected on one end to a dumping station and at a second end to pipes connecting to the black and gray water tanks of an RV. ... | 10/25/2005 |
| 6957450 | Standardized recreational vehicle sanitary system A sanitary system including a toilet adapted for use in a recreational vehicle, and a recreational vehicle including the toilet and sanitary system. The sanitary system includes a horizontally offset waste storage receptacle to be installed in a stowage compartment ... | 10/25/2005 |
| 6910230 | Submergible public sanitary device A public sanitary device, comprising one or more walk-in positions, each having a receptacle for human excrement and/or urine, which is connected to a waste pipe for connection to a sewage system. The sanitary device has the characteristic that it is provided with m... | 06/28/2005 |
| 6735790 | Vent stack screen for portable toilet holding tanks A vent stack screen for portable toilet holding tanks is provided in the form of a cap designed to fit over the open end of an open air vent stack extending from the holding tank through the roof of a portable toilet. The cap is constructed from a tubular sleeve of ... | 05/18/2004 |
| 6723173 | Truck body for combined transport and maintenance of portable toilets A payload transporter, including a truck frame, a body having at least one waste storage tank storage tank, and a vacuum system, wherein the vacuum system is used to remove waste material from a portable toilet, wherein the waste material is stored in the waste stor... | 04/20/2004 |
| 6721967 | Modular portable comfort station A portable washroom for providing both washing and toilet facilities. The washroom is an enclosure that includes a base, upright supports mounted to the base, wall panels mounted between the upright supports, and a roof mounted to the top of the wall panels. An upwa... | 04/20/2004 |
| 6681412 | PTFE membrane filter for exhaust air of vacuum toilet system A filter arrangement for a vacuum toilet system includes a filter element arranged in a filter housing connected to a waste water tank of the vacuum toilet system. The filter element includes a polytetrafluoroethylene (PTFE) filter membrane on the inlet s... | 01/27/2004 |
| 6618866 | Vacuum tank construction A vacuum tank assembly includes a vacuum tank that has a low profile and will fit in small, and particularly low height, compartments of a boat or RV. The tank is connected to a vacuum toilet and a vacuum pump during use. The tank preferably has a general... | 09/16/2003 |
| 6615414 | Portable sanitation device The present invention is a portable sanitation device comprising a stall that houses and maintains a conventional toilet. Coupled to the toilet is a water source and coupled to the stall is a removable and separate septic tank. The water source will rende... | 09/09/2003 |
| 6598242 | Low profile transportable sewage holding tank A low profile transportable holding tank for accepting waste from portable toilets. The holding tank is carried on a flatbed vehicle and has a flat deck for cargo, thus effectively increasing the cargo-carrying capacity of the vehicle compared with that a... | 07/29/2003 |
| 6519787 | Toilet water recycling system A water treatment and recycling system is provided having an aeration chamber, a reaction chamber, a water tank, and a plurality of pumps. The water tank houses the treated water and is the supply source for supplying water to different water needs. The f... | 02/18/2003 |
| 6516836 | Motorized waste hose for recreational vehicle Draining of the waste tank of a recreational vehicle is improved by using a motor to operate the waste hose. The motor causes the proximal end of the hose to be extended from its housing in the RV while the distal end remains attached to the waste tan. Th... | 02/11/2003 |
| 6513174 | Vacuum unit and a vacuum toilet system comprising such a unit A vacuum unit, particularly for a vacuum toilet system, includes first and second valves (4, 6), an ejector (10) connected to the first valve, and a piston valve (16) which is connected between the ejector and the second valve. The unit is characterised i... | 02/04/2003 |
| 6507958 | Multi-function base unit for portable stand-alone restroom facility A multi-function base unit for an outdoor portable restroom cabana that is molded from a plastic material to form a combined cabana floor, waste-holding tank, and pallet skids for support and for forklift access. The unit includes a base that defines a ho... | 01/21/2003 |
| 6487731 | Self-cleaning, waste storing, odorless, environmentally friendly toilet for humans and animals The present invention relates to oil toilets where oil is used as a sealant to isolate unpleasant smell produced by waste materials. Waste materials enter oil in the storage container and sink since both solid waste and urine have specific gravity that is... | 12/03/2002 |
| 6453481 | Vacuum waste system having a vacuum control valve A vacuum waste system is disclosed having a receptacle for receiving waste, the receptacle having an outlet, and a collection tank in fluid communication with the receptacle outlet. A vacuum source is in fluid communication with the collection tank to pro... | 09/24/2002 |
| 6430757 | Self-contained toilet basin A self-contained bathroom waste collection and disposal unit, having an access cover free of electrical and plumbing fixtures is disclosed. The unit includes a reservoir having an inlet and a sump opening. The sump opening is sized to receive a pump and a... | 08/13/2002 |
| 6397407 | Vacuum toilet system with single pump A multi-position (e.g. three way) valve is operatively connected to a combined vacuum/holding tank for a vacuum toilet system, and to a pump capable of pumping both air and sewage. When the valve is in one position air is pulled from the tank through the ... | 06/04/2002 |
| 6393635 | Galley waste disposal system and method A waste disposal system quietly and effectively evacuates solid, liquid, and slurry food waste from a galley sink via a vacuum action created when a normally closed flush valve momentarily opens and eliminates the differential pressure between the sink an... | 05/28/2002 |
| 6374431 | Vacuum toilet system with single pump A multi-position (e.g. three way) valve is operatively connected to a combined vacuum/holding tank for a vacuum toilet system, and to a pump capable of pumping both air and sewage. When the valve is in one position air is pulled from the tank through the ... | 04/23/2002 |
| 6370706 | Portable sanitation unit A portable sanitation unit includes a base, a sanitation unit housing having a door and provided with a floor and a sanitation unit pan. A waste tank is situated on the base. Apart from the waste tank, a flushing water tank is also fitted below the waste ... | 04/16/2002 |