Did You Know...
...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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| Number | Title | Issue Date |
| 8185977 | System for flushing of a vacuum toilet in an aircraft A system for flushing a vacuum toilet, includes a drain that is connected to a drain conduit, which vacuum toilet is connectable to a vacuum system by way of a suction valve. With the use of a combined valve including, for example, a flow-optimised intermediate stor... | 05/29/2012 |
| 7845028 | Vacuum sewer system Vacuum sewer system comprising a source of sewage (101), sewer piping (102), a discharge valve (103) between the source of sewage and the sewer piping, means (104) for generating partial vacuum in the sewer piping, and a control means for... | 12/07/2010 |
| 7770241 | Vacuum sewer system Disclosed is a sewer system including a sewage receptacle, sewer piping connected to the sewage receptacle by means of a discharge valve, a mechanism for generating vacuum in the sewer piping, and a control mechanism for controlling the discharge valve. In order to ... | 08/10/2010 |
| 7373946 | Vacuum tank assembly A vacuum tank assembly is provided for use on an RV or a boat and includes a two-piece vacuum tank. The two-piece vacuum tank includes a body and a removable top with a gasket located between the body and removable top. A dip tube is integrated into the removable to... | 05/20/2008 |
| 7371323 | System and method for reducing wastewater contaminants A wastewater treatment system. Toilet, kitchen, commercial, and industrial process waste is segregated from the total wastewater stream and treated in order to reduce the total nitrogen, phosphorous, pathogens, household hazardous and hazardous wastes and organic ca... | 05/13/2008 |
| 7337041 | Feedback control methods and apparatus for electro-pneumatic control systems Methods and apparatus related to feedback control for electro-pneumatic control systems are disclosed. An example electro-pneumatic control system comprises an electro-pneumatic controller and a secondary pneumatic power stage coupled to the electro-pneumatic contro... | 02/26/2008 |
| 7325781 | Automatic bathroom flushers with modular design A bathroom flusher includes a flusher body, a valve assembly, an electronic control system, and a flusher cover. The flusher body includes an inlet and an outlet, and is designed to accommodate the valve assembly that controls water flow between the inlet and the ou... | 02/05/2008 |
| 7245561 | Water feature The invention provides a water feature comprising a vessel containing a volume of water and means for imparting rotational motion thereto, wherein means are also provided for varying the height of the volume of water in the vessel. The invention also provides a meth... | 07/17/2007 |
| 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 |
| 7188822 | Enclosures for automatic bathroom flushers A bathroom flusher includes a flusher body, a valve assembly, an electronic control system, and a flusher cover. The flusher body includes an inlet and an outlet, and is designed to accommodate the valve assembly that controls water flow between the inlet and the ou... | 03/13/2007 |
| 7156363 | Bathroom flushers with novel sensors and controllers A bathroom flusher (10) includes a body having an inlet (12) in communication with a supply line and an outlet (16) in communication with a flush conduit, a valve assembly in the body positioned to close water flow between the inlet and the outl... | 01/02/2007 |
| 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 |
| 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 |
| 6910231 | Toilet system with a toilet pan A toilet system which can be rinsed by a rinsing device. A pipe is connected to the toilet pan and leads to a sanitation pipe. Means are provided for transporting a suction material from the toilet pan into the pipe and into the sanitation pipe. Said means comprise ... | 06/28/2005 |
| 6782563 | 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 generally rectangu... | 08/31/2004 |
| 6732386 | Rinse fluid valve for a vacuum toilet A rinse fluid valve for use in a vacuum toilet system is disclosed. The vacuum toilet system includes a waste receptacle with a rinse fluid dispenser associated therewith and a source of rinse fluid. The rinse fluid valve has a housing with an inlet in fluid communi... | 05/11/2004 |
| 6704947 | Discharge valve for a vacuum toilet A discharge valve is disclosed for use in a vacuum toilet system having a waste receptacle defining an outlet and a sewer line placeable under partial vacuum. The discharge valve comprises a housing defining an inlet and an outlet, and a rotatable discharge valve me... | 03/16/2004 |
| 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 |
| 6648002 | Vacuum sewer system A vacuum sewer system (1) comprises a source of sewage (2) and sewer piping (3) comprising a first sewer pipe (31) and a second sewer pipe (32). A first sewer valve (21) provided with an outlet port (22) is arranged between the source of sewage (2) and th... | 11/18/2003 |
| 6625822 | Toilet with a modular vacuum flush system A toilet bowl (10), a tank (20) for the reception of a quantity of wastewater, a cut-off valve (12) between the bowl outlet and the tank inlet, a vacuum generator (22) connected to the tank (20), a tank inlet valve (23) for the inlet of pressurized air to... | 09/30/2003 |
| 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 |
| 6536054 | Vacuum toilet bowl assembly having removable bowl A vacuum bowl assembly for use in a vacuum toilet positioned on a support surface and having a discharge valve. The vacuum bowl assembly comprises a frame having a bottom member adapted to engage the support surface, and a top member defining a shoulder. ... | 03/25/2003 |
| 6536055 | Modular vacuum toilet with line replaceable units A modular vacuum toilet, and a method of servicing such a toilet, are disclosed. The toilet is used with a vacuum toilet system having a sewer line placeable under partial vacuum pressure and a source of rinse fluid. The modular vacuum toilet comprises a ... | 03/25/2003 |
| 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 |
| 6510564 | Vacuum toilet system for a vehicle A vacuum toilet system comprises a plurality of toilets, a collecting tank, a conduit system that connects the plurality of toilets with the collecting tank, and a vacuum generator that is connected in a fluidic manner to the collecting tank. The conduit ... | 01/28/2003 |
| 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 |
| 6434759 | Automatically operable lid for a vacuum waste receptacle A vacuum toilet for use with a waste pipe maintained under partial vacuum pressure. The vacuum toilet comprises a bowl having an upper surface defining an opening and a lid supported for pivotable movement between a lowered position, in which the lid cove... | 08/20/2002 |
| 6421843 | Low water volume toilet A toilet and method for flushing using less than 1 gallon of water, comprising: a toilet body comprising a bowl, support walls, rim, and a waste outlet; a water jet macerator having a waste inlet connected to the waste outlet, a macerator water inlet conn... | 07/23/2002 |
| 6401270 | Toilet apparatus An embodiment provides a toilet having a toilet pan 11, an outlet pipe 78 for the contents of the pan, a closeable lid 21 on the pan forming with the pan a waste receptacle chamber, a seal 22 between the lid 21 and the pan 11, means 12 for introducing wat... | 06/11/2002 |
| 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 |
| 6385789 | Vacuum gallery waste disposal system A galley waste disposal system is provided for use with an existing vacuum collection system. The galley waste disposal system includes a basin for receiving galley waste and a discharge valve connected between the basin and a collection tank. The dischar... | 05/14/2002 |
| 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 |
| 6370709 | Discharge valve having a disk with a flushing aperture and an air intake aperture for a vacuum toilet A discharge valve is disclosed for use in a vacuum toilet system having a waste receptacle defining an outlet and a sewer line placeable under partial vacuum. The discharge valve comprises a housing defining an inlet and an outlet and a rotatable discharg... | 04/16/2002 |
| 6360768 | Control apparatus for pneumatic evacuation and water valves, operated by vacuum pressure A control apparatus for pneumatic evacuation and/or water valves, operated by vacuum pressure and used for a vacuum sewerage system, particularly for pneumatically operated sanitary appliances, such as vacuum closets, urinals or wash basins. The control a... | 03/26/2002 |
| 6357056 | Water saving toilet system A toilet system having a toilet bowl including at a bottom thereof a discharge opening. The discharge opening of the bowl is connected to the intake opening of a treating chamber. A discharge pump in the treating chamber discharges treated effluent theref... | 03/19/2002 |
| 6353942 | Modular vacuum toilet with line replaceable units A modular vacuum toilet, and a method of servicing such a toilet, are disclosed. The toilet is used with a vacuum toilet system having a sewer line placeable under partial vacuum pressure and a source of rinse fluid. The modular vacuum toilet comprises a ... | 03/12/2002 |
| 6349425 | Valve set for a vacuum toilet An integrated valve set for use in a vacuum toilet system is disclosed. The vacuum toilet system includes a waste receptacle defining an outlet and having a rinse fluid nozzle, a source of rinse fluid, and a sewer line placeable under partial vacuum press... | 02/26/2002 |
